diff options
Diffstat (limited to 'fpga')
24 files changed, 879 insertions, 5881 deletions
diff --git a/fpga/usrp2/control_lib/Makefile.srcs b/fpga/usrp2/control_lib/Makefile.srcs index 5e2a96a53..bc8e4d5bc 100644 --- a/fpga/usrp2/control_lib/Makefile.srcs +++ b/fpga/usrp2/control_lib/Makefile.srcs @@ -20,6 +20,7 @@ mux8.v \ nsgpio.v \ ram_2port.v \ ram_harv_cache.v \ +ram_harvard.v \ ram_loader.v \ setting_reg.v \ settings_bus.v \ diff --git a/fpga/usrp2/control_lib/ram_harvard.v b/fpga/usrp2/control_lib/ram_harvard.v new file mode 100644 index 000000000..948f9b36f --- /dev/null +++ b/fpga/usrp2/control_lib/ram_harvard.v @@ -0,0 +1,69 @@ + + +// Dual ported, Harvard architecture, cached ram + +module ram_harvard + #(parameter AWIDTH=15, + parameter RAM_SIZE=16384, + parameter ICWIDTH=6, + parameter DCWIDTH=6) + + (input wb_clk_i, + input wb_rst_i, + // Firmware download port. + input [AWIDTH-1:0] ram_loader_adr_i, + input [31:0] ram_loader_dat_i, + input [3:0] ram_loader_sel_i, + input ram_loader_stb_i, + input ram_loader_we_i, + input ram_loader_done_i, + // Instruction fetch port. + input [AWIDTH-1:0] if_adr, + output [31:0] if_data, + // Data access port. + input [AWIDTH-1:0] dwb_adr_i, + input [31:0] dwb_dat_i, + output [31:0] dwb_dat_o, + input dwb_we_i, + output dwb_ack_o, + input dwb_stb_i, + input [3:0] dwb_sel_i, + + input flush_icache ); + + reg ack_d1; + reg stb_d1; + + dpram32 #(.AWIDTH(AWIDTH),.RAM_SIZE(RAM_SIZE)) + sys_ram + (.clk(wb_clk_i), + .adr1_i(ram_loader_done_i ? if_adr : ram_loader_adr_i), + .dat1_i(ram_loader_dat_i), + .dat1_o(if_data), + .we1_i(ram_loader_done_i ? 1'b0 : ram_loader_we_i), + .en1_i(ram_loader_done_i ? 1'b1 : ram_loader_stb_i), + //.sel1_i(ram_loader_done_i ? 4'hF : ram_loader_sel_i), + .sel1_i(ram_loader_sel_i), // Sel is only for writes anyway + .adr2_i(dwb_adr_i), + .dat2_i(dwb_dat_i), + .dat2_o(dwb_dat_o), + .we2_i(dwb_we_i), + .en2_i(dwb_stb_i), + .sel2_i(dwb_sel_i) + ); + + assign dwb_ack_o = dwb_stb_i & (dwb_we_i | (stb_d1 & ~ack_d1)); + + always @(posedge wb_clk_i) + if(wb_rst_i) + ack_d1 <= 1'b0; + else + ack_d1 <= dwb_ack_o; + + always @(posedge wb_clk_i) + if(wb_rst_i) + stb_d1 <= 0; + else + stb_d1 <= dwb_stb_i; + +endmodule // ram_harvard diff --git a/fpga/usrp2/control_lib/ram_loader.v b/fpga/usrp2/control_lib/ram_loader.v index cb67de739..c53ea7aa7 100644 --- a/fpga/usrp2/control_lib/ram_loader.v +++ b/fpga/usrp2/control_lib/ram_loader.v @@ -1,225 +1,261 @@ +module ram_loader + #(parameter AWIDTH=16, RAM_SIZE=16384) + ( + // Wishbone I/F and clock domain + input wb_clk, + input dsp_clk, + input ram_loader_rst, + output wire [31:0] wb_dat, + output wire [AWIDTH-1:0] wb_adr, + output wb_stb, + output reg [3:0] wb_sel, + output wb_we, + output reg ram_loader_done, + // CPLD signals and clock domain + input cpld_clk, + input cpld_din, + output reg cpld_start, + output reg cpld_mode, + output reg cpld_done, + input cpld_detached + ); -// Adapted from VHDL code in spi_boot by Arnim Legauer -// Added a full wishbone master interface (32-bit) - -module ram_loader #(parameter AWIDTH=16, RAM_SIZE=16384) - (input clk_i, input rst_i, - // CPLD Interface - input cfg_clk_i, input cfg_data_i, - output start_o, output mode_o, output done_o, - input detached_i, - // Wishbone interface - output wire [31:0] wb_dat_o, - output reg [AWIDTH-1:0] wb_adr_o, - output wb_stb_o, - output wb_cyc_o, - output reg [3:0] wb_sel_o, - output reg wb_we_o, - input wb_ack_i, - output ram_loader_done_o); + localparam S0 = 0; + localparam S1 = 1; + localparam S2 = 2; + localparam S3 = 3; + localparam S4 = 4; + localparam S5 = 5; + localparam S6 = 6; + localparam RESET = 7; - // FSM to control start signal, clocked on main clock - localparam FSM1_WAIT_DETACH = 2'b00; - localparam FSM1_CHECK_NO_DONE = 2'b01; - localparam FSM1_WAIT_DONE = 2'b10; - - reg [1:0] start_fsm_q, start_fsm_s; - reg start_q, enable_q, start_s, enable_s; - reg done_q, done_s; + localparam WB_IDLE = 0; + localparam WB_WRITE = 1; + + + reg [AWIDTH+2:0] count; // 3 LSB's count bits in, the MSB's generate the Wishbone address + reg [6:0] shift_reg; + reg [7:0] data_reg; + reg sampled_clk; + reg sampled_clk_meta; + reg sampled_din; + reg inc_count; + reg load_data_reg; + reg shift; + reg wb_state, wb_next_state; + reg [2:0] state, next_state; + + // + // CPLD clock doesn't free run and is approximately 12.5MHz. + // Use 50MHz Wishbone clock to sample it as a signal and avoid having + // an extra clock domain for no reason. + // + + always @(posedge dsp_clk or posedge ram_loader_rst) + if (ram_loader_rst) + begin + sampled_clk_meta <= 1'b0; + sampled_clk <= 1'b0; + sampled_din <= 1'b0; + count <= 'h7FFF8; // Initialize so that address will be 0 when first byte fully received. + data_reg <= 0; + shift_reg <= 0; + end + else + begin + sampled_clk_meta <= cpld_clk; + sampled_clk <= sampled_clk_meta; + sampled_din <= cpld_din; + if (inc_count) + count <= count + 1'b1; + if (load_data_reg) + data_reg <= {shift_reg,sampled_din}; + if (shift) + shift_reg <= {shift_reg[5:0],sampled_din}; + end // else: !if(ram_loader_rst) - always @(posedge clk_i or posedge rst_i) - if(rst_i) - begin - start_fsm_q <= FSM1_WAIT_DETACH; - start_q <= 1'b0; - enable_q <= 1'b0; - end + + always @(posedge dsp_clk or posedge ram_loader_rst) + if (ram_loader_rst) + state <= RESET; else - begin - start_fsm_q <= start_fsm_s; - enable_q <= enable_s; - start_q <= start_s; - end // else: !if(rst_i) - + state <= next_state; + + always @* - case(start_fsm_q) - FSM1_WAIT_DETACH: - if(detached_i == 1'b1) - begin - start_fsm_s <= FSM1_CHECK_NO_DONE; - enable_s <= 1'b1; - start_s <= 1'b1; - end - else - begin - start_fsm_s <= FSM1_WAIT_DETACH; - enable_s <= enable_q; - start_s <= start_q; - end // else: !if(detached_i == 1'b1) - FSM1_CHECK_NO_DONE: - if(~done_q) - begin - start_fsm_s <= FSM1_WAIT_DONE; - enable_s <= enable_q; - start_s <= start_q; - end - else - begin - start_fsm_s <= FSM1_CHECK_NO_DONE; - enable_s <= enable_q; - start_s <= start_q; - end // else: !if(~done_q) - FSM1_WAIT_DONE: - if(done_q) - begin - start_fsm_s <= FSM1_WAIT_DETACH; - enable_s <= 1'b0; - start_s <= 1'b0; - end - else - begin - start_fsm_s <= FSM1_WAIT_DONE; - enable_s <= enable_q; - start_s <= start_q; - end // else: !if(done_q) - default: - begin - start_fsm_s <= FSM1_WAIT_DETACH; - enable_s <= enable_q; - start_s <= start_q; - end // else: !if(done_q) - endcase // case(start_fsm_q) - - // FSM running on data clock - - localparam FSM2_IDLE = 3'b000; - localparam FSM2_WE_ON = 3'b001; - localparam FSM2_WE_OFF = 3'b010; - localparam FSM2_INC_ADDR1 = 3'b011; - localparam FSM2_INC_ADDR2 = 3'b100; - localparam FSM2_FINISHED = 3'b101; - - reg [AWIDTH-1:0] addr_q; - reg [7:0] shift_dat_q, ser_dat_q; - reg [2:0] bit_q, fsm_q, fsm_s; - reg bit_ovfl_q, ram_we_s, ram_we_q, mode_q, mode_s, inc_addr_s; - - always @(posedge cfg_clk_i or posedge rst_i) - if(rst_i) - begin - addr_q <= 0; - shift_dat_q <= 8'd0; - ser_dat_q <= 8'd0; - bit_q <= 3'd0; - bit_ovfl_q <= 1'b0; - fsm_q <= FSM2_IDLE; - ram_we_q <= 1'b0; - done_q <= 1'b0; - mode_q <= 1'b0; - end + begin + // Defaults + next_state = state; + cpld_start = 1'b0; + shift = 1'b0; + inc_count = 0; + load_data_reg = 1'b0; + ram_loader_done = 1'b0; + cpld_mode = 1'b0; + cpld_done = 1'b1; + + + + case (state) //synthesis parallel_case full_case + // After reset wait until CPLD indicates its detached. + RESET: begin + if (cpld_detached) + next_state = S0; + else + next_state = RESET; + end + + // Assert cpld_start to signal the CPLD its to start sending serial clock and data. + // Assume cpld_clk is low as we transition into search for first rising edge + S0: begin + cpld_start = 1'b1; + cpld_done = 1'b0; + if (~cpld_detached) + next_state = S2; + else + next_state = S0; + end + + // + S1: begin + cpld_start = 1'b1; + cpld_done = 1'b0; + if (sampled_clk) + begin + // Found rising edge on cpld_clk. + if (count[2:0] == 3'b111) + // Its the last bit of a byte, send it out to the Wishbone bus. + begin + load_data_reg = 1'b1; + inc_count = 1'b1; + end + else + // Shift databit into LSB of shift register and increment count + begin + shift = 1'b1; + inc_count = 1'b1; + end // else: !if(count[2:0] == 3'b111) + next_state = S2; + end // if (sampled_clk) + else + next_state = S1; + end // case: S1 + + // + S2: begin + cpld_start = 1'b1; + cpld_done = 1'b0; + if (~sampled_clk) + // Found negative edge of clock + if (count[AWIDTH+2:3] == RAM_SIZE-1) // NOTE need to change this constant + // All firmware now downloaded + next_state = S3; + else + next_state = S1; + else + next_state = S2; + end // case: S2 + + // Now that terminal count is reached and all firmware is downloaded signal CPLD that download is done + // and that mode is now SPI mode. + S3: begin + if (sampled_clk) + begin + cpld_mode = 1'b1; + cpld_done = 1'b1; + next_state = S4; + end + else + next_state = S3; + end + + // Search for negedge of cpld_clk whilst keeping done sequence asserted. + // Keep done assserted + S4: begin + cpld_mode = 1'b1; + cpld_done = 1'b1; + if (~sampled_clk) + next_state = S5; + else + next_state = S4; + end + + // Search for posedge of cpld_clk whilst keeping done sequence asserted. + S5: begin + cpld_mode = 1'b1; + cpld_done = 1'b1; + if (sampled_clk) + next_state = S6; + else + next_state = S5; + end + + // Stay in this state until reset/power down + S6: begin + ram_loader_done = 1'b1; + cpld_done = 1'b1; + cpld_mode = 1'b1; + next_state = S6; + end + + endcase // case(state) + end + + always @(posedge dsp_clk or posedge ram_loader_rst) + if (ram_loader_rst) + wb_state <= WB_IDLE; else - begin - if(inc_addr_s) - addr_q <= addr_q + 1; - if(enable_q) - begin - bit_q <= bit_q + 1; - bit_ovfl_q <= (bit_q == 3'd7); - shift_dat_q[0] <= cfg_data_i; - shift_dat_q[7:1] <= shift_dat_q[6:0]; - end - if(bit_ovfl_q) - ser_dat_q <= shift_dat_q; - - fsm_q <= fsm_s; - - ram_we_q <= ram_we_s; - - if(done_s) - done_q <= 1'b1; - mode_q <= mode_s; - end // else: !if(rst_i) + wb_state <= wb_next_state; + reg do_write; + wire empty, full; + always @* begin - inc_addr_s <= 1'b0; - ram_we_s <= 1'b0; - done_s <= 1'b0; - fsm_s <= FSM2_IDLE; - mode_s <= 1'b0; - - case(fsm_q) - FSM2_IDLE : - if(start_q) - if(bit_ovfl_q) - fsm_s <= FSM2_WE_ON; - FSM2_WE_ON: - begin - ram_we_s <= 1'b1; - fsm_s <= FSM2_WE_OFF; - end - FSM2_WE_OFF: - begin - ram_we_s <= 1'b1; - fsm_s <= FSM2_INC_ADDR1; - end - FSM2_INC_ADDR1: - fsm_s <= FSM2_INC_ADDR2; - FSM2_INC_ADDR2: - if(addr_q == (RAM_SIZE-1)) - //if(&addr_q) - begin - fsm_s <= FSM2_FINISHED; - done_s <= 1'b1; - mode_s <= 1'b1; - end - else - begin - inc_addr_s <= 1'b1; - fsm_s <= FSM2_IDLE; - end // else: !if(&addr_q) - FSM2_FINISHED: - begin - fsm_s <= FSM2_FINISHED; - mode_s <= 1'b1; - end - endcase // case(fsm_q) + wb_next_state = wb_state; + do_write = 1'b0; + + case (wb_state) //synthesis full_case parallel_case + // + WB_IDLE: begin + if (load_data_reg) + // Data reg will load ready to write wishbone @ next clock edge + wb_next_state = WB_WRITE; + else + wb_next_state = WB_IDLE; + end + + // Drive address and data onto wishbone. + WB_WRITE: begin + do_write = 1'b1; + if (~full) + wb_next_state = WB_IDLE; + else + wb_next_state = WB_WRITE; + end + + endcase // case(wb_state) end // always @ * - assign start_o = start_q; - assign mode_o = mode_q; - assign done_o = start_q ? done_q : 1'b1; - wire [AWIDTH-1:0] ram_addr = addr_q; - wire [7:0] ram_data = ser_dat_q; - assign ram_loader_done_o = (fsm_q == FSM2_FINISHED); - - // wishbone master, only writes - reg [7:0] dat_holder; - assign wb_dat_o = {4{dat_holder}}; - assign wb_stb_o = wb_we_o; - assign wb_cyc_o = wb_we_o; + wire [1:0] count_out; + wire [7:0] data_out; + + fifo_xlnx_16x40_2clk crossclk + (.rst(ram_loader_rst), + .wr_clk(dsp_clk), .din({count[4:3],count[AWIDTH+2:3],data_reg}), .wr_en(do_write), .full(full), + .rd_clk(wb_clk), .dout({count_out,wb_adr,data_out}), .rd_en(~empty), .empty(empty)); + + assign wb_dat = {4{data_out}}; + + always @* + case(count_out[1:0]) //synthesis parallel_case full_case + 2'b00 : wb_sel = 4'b1000; + 2'b01 : wb_sel = 4'b0100; + 2'b10 : wb_sel = 4'b0010; + 2'b11 : wb_sel = 4'b0001; + endcase + + assign wb_we = ~empty; + assign wb_stb = ~empty; - always @(posedge clk_i or posedge rst_i) - if(rst_i) - begin - dat_holder <= 8'd0; - wb_adr_o <= 0; - wb_sel_o <= 4'b0000; - wb_we_o <= 1'b0; - end - else if(ram_we_q) - begin - dat_holder <= ram_data; - wb_adr_o <= ram_addr; - wb_we_o <= 1'b1; - case(ram_addr[1:0]) // Big Endian - 2'b00 : wb_sel_o <= 4'b1000; - 2'b01 : wb_sel_o <= 4'b0100; - 2'b10 : wb_sel_o <= 4'b0010; - 2'b11 : wb_sel_o <= 4'b0001; - endcase // case(ram_addr[1:0]) - end // if (ram_we_q) - else if(wb_ack_i) - wb_we_o <= 1'b0; - endmodule // ram_loader diff --git a/fpga/usrp2/fifo/Makefile.srcs b/fpga/usrp2/fifo/Makefile.srcs index 22867da7e..c66979132 100644 --- a/fpga/usrp2/fifo/Makefile.srcs +++ b/fpga/usrp2/fifo/Makefile.srcs @@ -20,4 +20,6 @@ fifo19_to_ll8.v \ ll8_to_fifo19.v \ fifo36_to_fifo19.v \ fifo19_to_fifo36.v \ +fifo36_mux.v \ +fifo36_demux.v \ )) diff --git a/fpga/usrp2/fifo/fifo36_demux.v b/fpga/usrp2/fifo/fifo36_demux.v new file mode 100644 index 000000000..a54759d4d --- /dev/null +++ b/fpga/usrp2/fifo/fifo36_demux.v @@ -0,0 +1,50 @@ + +// Demux packets from a fifo based on the contents of the first line +// If first line matches the parameter and mask, send to data1, otherwise send to data0 + +module fifo36_demux + #(parameter match_data = 0, + parameter match_mask = 0) + (input clk, input reset, input clear, + input [35:0] data_i, input src_rdy_i, output dst_rdy_o, + output [35:0] data0_o, output src0_rdy_o, input dst0_rdy_i, + output [35:0] data1_o, output src1_rdy_o, input dst1_rdy_i); + + localparam DMX_IDLE = 0; + localparam DMX_DATA0 = 1; + localparam DMX_DATA1 = 2; + + reg [1:0] state; + + wire match = |( (data_i ^ match_data) & match_mask ); + wire eof = data_i[33]; + + always @(posedge clk) + if(reset | clear) + state <= DMX_IDLE; + else + case(state) + DMX_IDLE : + if(src_rdy_i) + if(match) + state <= DMX_DATA1; + else + state <= DMX_DATA0; + DMX_DATA0 : + if(src_rdy_i & dst0_rdy_i & eof) + state <= DMX_IDLE; + DMX_DATA1 : + if(src_rdy_i & dst1_rdy_i & eof) + state <= DMX_IDLE; + default : + state <= DMX_IDLE; + endcase // case (state) + + assign dst_rdy_o = (state==DMX_IDLE) ? 0 : (state==DMX_DATA0) ? dst0_rdy_i : dst1_rdy_i; + assign src0_rdy_o = (state==DMX_DATA0) ? src_rdy_i : 0; + assign src1_rdy_o = (state==DMX_DATA1) ? src_rdy_i : 0; + + assign data0_o = data_i; + assign data1_o = data_i; + +endmodule // fifo36_demux diff --git a/fpga/usrp2/fifo/fifo36_mux.v b/fpga/usrp2/fifo/fifo36_mux.v new file mode 100644 index 000000000..92bf13ff9 --- /dev/null +++ b/fpga/usrp2/fifo/fifo36_mux.v @@ -0,0 +1,57 @@ + +// Mux packets from multiple FIFO interfaces onto a single one. +// Can alternate or give priority to one port (port 0) +// In prio mode, port 1 will never get access if port 0 is always busy + +module fifo36_mux + #(parameter prio = 0) + (input clk, input reset, input clear, + input [35:0] data0_i, input src0_rdy_i, output dst0_rdy_o, + input [35:0] data1_i, input src1_rdy_i, output dst1_rdy_o, + output [35:0] data_o, output src_rdy_o, input dst_rdy_i); + + localparam MUX_IDLE0 = 0; + localparam MUX_DATA0 = 1; + localparam MUX_IDLE1 = 2; + localparam MUX_DATA1 = 3; + + reg [1:0] state; + + wire eof0 = data0_i[33]; + wire eof1 = data1_i[33]; + + always @(posedge clk) + if(reset | clear) + state <= MUX_IDLE0; + else + case(state) + MUX_IDLE0 : + if(src0_rdy_i) + state <= MUX_DATA0; + else if(src1_rdy_i) + state <= MUX_DATA1; + + MUX_DATA0 : + if(src0_rdy_i & dst_rdy_i & eof0) + state <= prio ? MUX_IDLE0 : MUX_IDLE1; + + MUX_IDLE1 : + if(src1_rdy_i) + state <= MUX_DATA1; + else if(src0_rdy_i) + state <= MUX_DATA0; + + MUX_DATA1 : + if(src1_rdy_i & dst_rdy_i & eof1) + state <= MUX_IDLE0; + + default : + state <= MUX_IDLE0; + endcase // case (state) + + assign dst0_rdy_o = (state==MUX_DATA0) ? dst_rdy_i : 0; + assign dst1_rdy_o = (state==MUX_DATA1) ? dst_rdy_i : 0; + assign src_rdy_o = (state==MUX_DATA0) ? src0_rdy_i : (state==MUX_DATA1) ? src1_rdy_i : 0; + assign data_o = (state==MUX_DATA0) ? data0_i : data1_i; + +endmodule // fifo36_demux diff --git a/fpga/usrp2/fifo/fifo_new_tb.vcd b/fpga/usrp2/fifo/fifo_new_tb.vcd deleted file mode 100644 index 796889e7d..000000000 --- a/fpga/usrp2/fifo/fifo_new_tb.vcd +++ /dev/null @@ -1,5506 +0,0 @@ -$date - Thu Mar 19 17:21:11 2009 -$end -$version - Icarus Verilog -$end -$timescale - 1ps -$end -$scope module fifo_new_tb $end -$var wire 1 ! dst_rdy_f36i $end -$var wire 36 " f36_in [35:0] $end -$var wire 36 # i1 [35:0] $end -$var wire 1 $ i1_dr $end -$var wire 1 % i1_sr $end -$var wire 19 & i2 [18:0] $end -$var wire 1 ' i2_dr $end -$var wire 1 ( i2_sr $end -$var wire 19 ) i3 [18:0] $end -$var wire 1 * i3_dr $end -$var wire 1 + i3_sr $end -$var wire 36 , i4 [35:0] $end -$var wire 1 - i4_sr $end -$var wire 8 . ll_data [7:0] $end -$var wire 1 / ll_dst_rdy_n $end -$var wire 1 0 ll_eof_n $end -$var wire 1 1 ll_sof_n $end -$var wire 1 2 ll_src_rdy_n $end -$var reg 1 3 clear $end -$var reg 1 4 clk $end -$var reg 16 5 count [15:0] $end -$var reg 1 6 dst_rdy_f36o $end -$var reg 32 7 f36_data [31:0] $end -$var reg 1 8 f36_eof $end -$var reg 2 9 f36_occ [1:0] $end -$var reg 1 : f36_sof $end -$var reg 1 ; i4_dr $end -$var reg 1 < rst $end -$var reg 1 = src_rdy_f36i $end -$scope module fifo_short1 $end -$var wire 1 > clear $end -$var wire 1 ? clk $end -$var wire 36 @ datain [35:0] $end -$var wire 36 A dataout [35:0] $end -$var wire 1 $ dst_rdy_i $end -$var wire 1 ! dst_rdy_o $end -$var wire 1 B read $end -$var wire 1 C reset $end -$var wire 1 D src_rdy_i $end -$var wire 1 % src_rdy_o $end -$var wire 1 E write $end -$var reg 4 F a [3:0] $end -$var reg 1 G empty $end -$var reg 1 H full $end -$var reg 5 I occupied [4:0] $end -$var reg 5 J space [4:0] $end -$scope begin gen_srl16[0] $end -$scope module srl16e $end -$var wire 1 K A0 $end -$var wire 1 L A1 $end -$var wire 1 M A2 $end -$var wire 1 N A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 O D $end -$var wire 1 P Q $end -$var reg 16 Q data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[1] $end -$scope module srl16e $end -$var wire 1 R A0 $end -$var wire 1 S A1 $end -$var wire 1 T A2 $end -$var wire 1 U A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 V D $end -$var wire 1 W Q $end -$var reg 16 X data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[2] $end -$scope module srl16e $end -$var wire 1 Y A0 $end -$var wire 1 Z A1 $end -$var wire 1 [ A2 $end -$var wire 1 \ A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 ] D $end -$var wire 1 ^ Q $end -$var reg 16 _ data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[3] $end -$scope module srl16e $end -$var wire 1 ` A0 $end -$var wire 1 a A1 $end -$var wire 1 b A2 $end -$var wire 1 c A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 d D $end -$var wire 1 e Q $end -$var reg 16 f data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[4] $end -$scope module srl16e $end -$var wire 1 g A0 $end -$var wire 1 h A1 $end -$var wire 1 i A2 $end -$var wire 1 j A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 k D $end -$var wire 1 l Q $end -$var reg 16 m data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[5] $end -$scope module srl16e $end -$var wire 1 n A0 $end -$var wire 1 o A1 $end -$var wire 1 p A2 $end -$var wire 1 q A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 r D $end -$var wire 1 s Q $end -$var reg 16 t data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[6] $end -$scope module srl16e $end -$var wire 1 u A0 $end -$var wire 1 v A1 $end -$var wire 1 w A2 $end -$var wire 1 x A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 y D $end -$var wire 1 z Q $end -$var reg 16 { data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[7] $end -$scope module srl16e $end -$var wire 1 | A0 $end -$var wire 1 } A1 $end -$var wire 1 ~ A2 $end -$var wire 1 !" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 "" D $end -$var wire 1 #" Q $end -$var reg 16 $" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[8] $end -$scope module srl16e $end -$var wire 1 %" A0 $end -$var wire 1 &" A1 $end -$var wire 1 '" A2 $end -$var wire 1 (" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 )" D $end -$var wire 1 *" Q $end -$var reg 16 +" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[9] $end -$scope module srl16e $end -$var wire 1 ," A0 $end -$var wire 1 -" A1 $end -$var wire 1 ." A2 $end -$var wire 1 /" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 0" D $end -$var wire 1 1" Q $end -$var reg 16 2" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[10] $end -$scope module srl16e $end -$var wire 1 3" A0 $end -$var wire 1 4" A1 $end -$var wire 1 5" A2 $end -$var wire 1 6" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 7" D $end -$var wire 1 8" Q $end -$var reg 16 9" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[11] $end -$scope module srl16e $end -$var wire 1 :" A0 $end -$var wire 1 ;" A1 $end -$var wire 1 <" A2 $end -$var wire 1 =" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 >" D $end -$var wire 1 ?" Q $end -$var reg 16 @" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[12] $end -$scope module srl16e $end -$var wire 1 A" A0 $end -$var wire 1 B" A1 $end -$var wire 1 C" A2 $end -$var wire 1 D" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 E" D $end -$var wire 1 F" Q $end -$var reg 16 G" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[13] $end -$scope module srl16e $end -$var wire 1 H" A0 $end -$var wire 1 I" A1 $end -$var wire 1 J" A2 $end -$var wire 1 K" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 L" D $end -$var wire 1 M" Q $end -$var reg 16 N" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[14] $end -$scope module srl16e $end -$var wire 1 O" A0 $end -$var wire 1 P" A1 $end -$var wire 1 Q" A2 $end -$var wire 1 R" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 S" D $end -$var wire 1 T" Q $end -$var reg 16 U" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[15] $end -$scope module srl16e $end -$var wire 1 V" A0 $end -$var wire 1 W" A1 $end -$var wire 1 X" A2 $end -$var wire 1 Y" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 Z" D $end -$var wire 1 [" Q $end -$var reg 16 \" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[16] $end -$scope module srl16e $end -$var wire 1 ]" A0 $end -$var wire 1 ^" A1 $end -$var wire 1 _" A2 $end -$var wire 1 `" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 a" D $end -$var wire 1 b" Q $end -$var reg 16 c" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[17] $end -$scope module srl16e $end -$var wire 1 d" A0 $end -$var wire 1 e" A1 $end -$var wire 1 f" A2 $end -$var wire 1 g" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 h" D $end -$var wire 1 i" Q $end -$var reg 16 j" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[18] $end -$scope module srl16e $end -$var wire 1 k" A0 $end -$var wire 1 l" A1 $end -$var wire 1 m" A2 $end -$var wire 1 n" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 o" D $end -$var wire 1 p" Q $end -$var reg 16 q" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[19] $end -$scope module srl16e $end -$var wire 1 r" A0 $end -$var wire 1 s" A1 $end -$var wire 1 t" A2 $end -$var wire 1 u" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 v" D $end -$var wire 1 w" Q $end -$var reg 16 x" data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[20] $end -$scope module srl16e $end -$var wire 1 y" A0 $end -$var wire 1 z" A1 $end -$var wire 1 {" A2 $end -$var wire 1 |" A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 }" D $end -$var wire 1 ~" Q $end -$var reg 16 !# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[21] $end -$scope module srl16e $end -$var wire 1 "# A0 $end -$var wire 1 ## A1 $end -$var wire 1 $# A2 $end -$var wire 1 %# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 &# D $end -$var wire 1 '# Q $end -$var reg 16 (# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[22] $end -$scope module srl16e $end -$var wire 1 )# A0 $end -$var wire 1 *# A1 $end -$var wire 1 +# A2 $end -$var wire 1 ,# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 -# D $end -$var wire 1 .# Q $end -$var reg 16 /# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[23] $end -$scope module srl16e $end -$var wire 1 0# A0 $end -$var wire 1 1# A1 $end -$var wire 1 2# A2 $end -$var wire 1 3# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 4# D $end -$var wire 1 5# Q $end -$var reg 16 6# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[24] $end -$scope module srl16e $end -$var wire 1 7# A0 $end -$var wire 1 8# A1 $end -$var wire 1 9# A2 $end -$var wire 1 :# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 ;# D $end -$var wire 1 <# Q $end -$var reg 16 =# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[25] $end -$scope module srl16e $end -$var wire 1 ># A0 $end -$var wire 1 ?# A1 $end -$var wire 1 @# A2 $end -$var wire 1 A# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 B# D $end -$var wire 1 C# Q $end -$var reg 16 D# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[26] $end -$scope module srl16e $end -$var wire 1 E# A0 $end -$var wire 1 F# A1 $end -$var wire 1 G# A2 $end -$var wire 1 H# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 I# D $end -$var wire 1 J# Q $end -$var reg 16 K# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[27] $end -$scope module srl16e $end -$var wire 1 L# A0 $end -$var wire 1 M# A1 $end -$var wire 1 N# A2 $end -$var wire 1 O# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 P# D $end -$var wire 1 Q# Q $end -$var reg 16 R# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[28] $end -$scope module srl16e $end -$var wire 1 S# A0 $end -$var wire 1 T# A1 $end -$var wire 1 U# A2 $end -$var wire 1 V# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 W# D $end -$var wire 1 X# Q $end -$var reg 16 Y# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[29] $end -$scope module srl16e $end -$var wire 1 Z# A0 $end -$var wire 1 [# A1 $end -$var wire 1 \# A2 $end -$var wire 1 ]# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 ^# D $end -$var wire 1 _# Q $end -$var reg 16 `# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[30] $end -$scope module srl16e $end -$var wire 1 a# A0 $end -$var wire 1 b# A1 $end -$var wire 1 c# A2 $end -$var wire 1 d# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 e# D $end -$var wire 1 f# Q $end -$var reg 16 g# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[31] $end -$scope module srl16e $end -$var wire 1 h# A0 $end -$var wire 1 i# A1 $end -$var wire 1 j# A2 $end -$var wire 1 k# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 l# D $end -$var wire 1 m# Q $end -$var reg 16 n# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[32] $end -$scope module srl16e $end -$var wire 1 o# A0 $end -$var wire 1 p# A1 $end -$var wire 1 q# A2 $end -$var wire 1 r# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 s# D $end -$var wire 1 t# Q $end -$var reg 16 u# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[33] $end -$scope module srl16e $end -$var wire 1 v# A0 $end -$var wire 1 w# A1 $end -$var wire 1 x# A2 $end -$var wire 1 y# A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 z# D $end -$var wire 1 {# Q $end -$var reg 16 |# data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[34] $end -$scope module srl16e $end -$var wire 1 }# A0 $end -$var wire 1 ~# A1 $end -$var wire 1 !$ A2 $end -$var wire 1 "$ A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 #$ D $end -$var wire 1 $$ Q $end -$var reg 16 %$ data [15:0] $end -$upscope $end -$upscope $end -$scope begin gen_srl16[35] $end -$scope module srl16e $end -$var wire 1 &$ A0 $end -$var wire 1 '$ A1 $end -$var wire 1 ($ A2 $end -$var wire 1 )$ A3 $end -$var wire 1 E CE $end -$var wire 1 ? CLK $end -$var wire 1 *$ D $end -$var wire 1 +$ Q $end -$var reg 16 ,$ data [15:0] $end -$upscope $end -$upscope $end -$upscope $end -$scope module fifo36_to_fifo19 $end -$var wire 1 > clear $end -$var wire 1 ? clk $end -$var wire 19 -$ f19_dataout [18:0] $end -$var wire 1 ' f19_dst_rdy_i $end -$var wire 1 ( f19_src_rdy_o $end -$var wire 1 .$ f19_xfer $end -$var wire 36 /$ f36_datain [35:0] $end -$var wire 1 $ f36_dst_rdy_o $end -$var wire 1 0$ f36_eof $end -$var wire 1 1$ f36_occ $end -$var wire 1 2$ f36_sof $end -$var wire 1 % f36_src_rdy_i $end -$var wire 1 3$ f36_xfer $end -$var wire 1 4$ half_line $end -$var wire 1 C reset $end -$var reg 1 5$ phase $end -$upscope $end -$scope module fifo19_to_ll8 $end -$var wire 1 6$ advance $end -$var wire 1 > clear $end -$var wire 1 ? clk $end -$var wire 19 7$ f19_data [18:0] $end -$var wire 1 ' f19_dst_rdy_o $end -$var wire 1 8$ f19_eof $end -$var wire 1 9$ f19_occ $end -$var wire 1 :$ f19_sof $end -$var wire 1 ( f19_src_rdy_i $end -$var wire 1 ;$ ll_dst_rdy $end -$var wire 1 / ll_dst_rdy_n $end -$var wire 1 <$ ll_eof $end -$var wire 1 0 ll_eof_n $end -$var wire 1 =$ ll_sof $end -$var wire 1 1 ll_sof_n $end -$var wire 1 >$ ll_src_rdy $end -$var wire 1 2 ll_src_rdy_n $end -$var wire 1 C reset $end -$var reg 8 ?$ ll_data [7:0] $end -$var reg 1 @$ state $end -$upscope $end -$scope module ll8_to_fifo19 $end -$var wire 1 > clear $end -$var wire 1 ? clk $end -$var wire 19 A$ f19_data [18:0] $end -$var wire 1 * f19_dst_rdy_i $end -$var wire 1 + f19_src_rdy_o $end -$var wire 8 B$ ll_data [7:0] $end -$var wire 1 C$ ll_dst_rdy $end -$var wire 1 / ll_dst_rdy_n $end -$var wire 1 D$ ll_eof $end -$var wire 1 0 ll_eof_n $end -$var wire 1 E$ ll_sof $end -$var wire 1 1 ll_sof_n $end -$var wire 1 F$ ll_src_rdy $end -$var wire 1 2 ll_src_rdy_n $end -$var wire 1 C reset $end -$var wire 1 G$ xfer_out $end -$var reg 8 H$ dat0 [7:0] $end -$var reg 8 I$ dat1 [7:0] $end -$var reg 1 J$ f19_eof $end -$var reg 1 K$ f19_occ $end -$var reg 1 L$ f19_sof $end -$var reg 2 M$ state [1:0] $end -$upscope $end -$scope module fifo19_to_fifo36 $end -$var wire 1 > clear $end -$var wire 1 ? clk $end -$var wire 19 N$ f19_datain [18:0] $end -$var wire 1 * f19_dst_rdy_o $end -$var wire 1 O$ f19_eof $end -$var wire 1 P$ f19_occ $end -$var wire 1 Q$ f19_sof $end -$var wire 1 + f19_src_rdy_i $end -$var wire 36 R$ f36_dataout [35:0] $end -$var wire 1 S$ f36_dst_rdy_i $end -$var wire 1 - f36_src_rdy_o $end -$var wire 1 C reset $end -$var wire 1 T$ xfer_out $end -$var reg 16 U$ dat0 [15:0] $end -$var reg 16 V$ dat1 [15:0] $end -$var reg 1 W$ f36_eof $end -$var reg 1 X$ f36_occ $end -$var reg 1 Y$ f36_sof $end -$var reg 2 Z$ state [1:0] $end -$upscope $end -$scope task PutPacketInFIFO36 $end -$var reg 32 [$ data_len [31:0] $end -$var reg 32 \$ data_start [31:0] $end -$upscope $end -$scope task ReadFromFIFO36 $end -$upscope $end -$upscope $end -$enddefinitions $end -#0 -$dumpvars -bx \$ -bx [$ -bx Z$ -xY$ -xX$ -xW$ -bx V$ -bx U$ -0T$ -0S$ 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-#16650000000000000 -14 -1? -#16700000000000000 -04 -0? -#16750000000000000 -14 -1? -#16800000000000000 -04 -0? -#16850000000000000 -14 -1? -#16900000000000000 -04 -0? -#16950000000000000 -14 -1? -#17000000000000000 -04 -0? -#17050000000000000 -14 -1? -#17100000000000000 -04 -0? -#17150000000000000 -14 -1? -#17200000000000000 -04 -0? -#17250000000000000 -14 -1? -#17300000000000000 -04 -0? -#17350000000000000 -14 -1? -#17400000000000000 -04 -0? -#17450000000000000 -14 -1? -#17500000000000000 -04 -0? -#17550000000000000 -14 -1? -#17600000000000000 -04 -0? -#17650000000000000 -14 -1? -#17700000000000000 -04 -0? -#17750000000000000 -14 -1? -#17800000000000000 -04 -0? -#17850000000000000 -14 -1? -#17900000000000000 -04 -0? -#17950000000000000 -14 -1? -#18000000000000000 -04 -0? -#18050000000000000 -14 -1? -#18100000000000000 -04 -0? -#18150000000000000 -14 -1? -#18200000000000000 -04 -0? -#18250000000000000 -14 -1? -#18300000000000000 -04 -0? -#18350000000000000 -14 -1? -#18400000000000000 -04 -0? -#18450000000000000 -14 -1? -#18500000000000000 -04 -0? -#18550000000000000 -14 -1? -#18600000000000000 -04 -0? -#18650000000000000 -14 -1? -#18700000000000000 -04 -0? -#18750000000000000 -14 -1? -#18800000000000000 -04 -0? -#18850000000000000 -14 -1? -#18900000000000000 -04 -0? -#18950000000000000 -14 -1? -#19000000000000000 -04 -0? -#19050000000000000 -14 -1? -#19100000000000000 -04 -0? -#19150000000000000 -14 -1? -#19200000000000000 -04 -0? -#19250000000000000 -14 -1? -#19300000000000000 -04 -0? -#19350000000000000 -14 -1? -#19400000000000000 -04 -0? -#19450000000000000 -14 -1? -#19500000000000000 -04 -0? -#19550000000000000 -14 -1? -#19600000000000000 -04 -0? -#19650000000000000 -14 -1? -#19700000000000000 -04 -0? -#19750000000000000 -14 -1? -#19800000000000000 -04 -0? -#19850000000000000 -14 -1? -#19900000000000000 -04 -0? -#19950000000000000 -14 -1? -#20000000000000000 -04 -0? diff --git a/fpga/usrp2/fifo/fifo_tb.v b/fpga/usrp2/fifo/fifo_tb.v index f561df7fa..327da4700 100644 --- a/fpga/usrp2/fifo/fifo_tb.v +++ b/fpga/usrp2/fifo/fifo_tb.v @@ -24,20 +24,39 @@ module fifo_new_tb(); wire i1_sr, i1_dr; wire i2_sr, i2_dr; wire i3_sr, i3_dr; + wire i7_sr, i7_dr; + reg i4_dr = 0; wire i4_sr; - wire [35:0] i1, i4; + wire [35:0] i1, i4, i7; wire [18:0] i2, i3; wire [7:0] ll_data; wire ll_src_rdy_n, ll_dst_rdy_n, ll_sof_n, ll_eof_n; + wire [35:0] err_dat; + wire err_src_rdy, err_dst_rdy; + + reg trigger = 0; + initial #10000 trigger = 1; fifo_short #(.WIDTH(36)) fifo_short1 (.clk(clk),.reset(rst),.clear(clear), .datain(f36_in),.src_rdy_i(src_rdy_f36i),.dst_rdy_o(dst_rdy_f36i), - .dataout(i1),.src_rdy_o(i1_sr),.dst_rdy_i(i1_dr) ); + .dataout(i7),.src_rdy_o(i7_sr),.dst_rdy_i(i7_dr) ); + gen_context_pkt #(.PROT_ENG_FLAGS(1)) gcp + (.clk(clk),.reset(rst),.clear(clear), + .trigger(trigger), .sent(), + .streamid(32'hDEAD_F00D), .vita_time(64'h01234567_89ABCDEF), .message(32'hBEEF_2940), + .data_o(err_dat), .src_rdy_o(err_src_rdy), .dst_rdy_i(err_dst_rdy)); + + fifo36_mux #(.prio(0)) fifo36_mux + (.clk(clk), .reset(rst), .clear(clear), + .data0_i(i7), .src0_rdy_i(i7_sr), .dst0_rdy_o(i7_dr), + .data1_i(err_dat), .src1_rdy_i(err_src_rdy), .dst1_rdy_o(err_dst_rdy), + .data_o(i1), .src_rdy_o(i1_sr), .dst_rdy_i(i1_dr)); + fifo36_to_fifo19 fifo36_to_fifo19 (.clk(clk),.reset(rst),.clear(clear), .f36_datain(i1),.f36_src_rdy_i(i1_sr),.f36_dst_rdy_o(i1_dr), @@ -59,7 +78,7 @@ module fifo_new_tb(); (.clk(clk),.reset(rst),.clear(clear), .f19_datain(i3),.f19_src_rdy_i(i3_sr),.f19_dst_rdy_o(i3_dr), .f36_dataout(i4),.f36_src_rdy_o(i4_sr),.f36_dst_rdy_i(i4_dr) ); - + task ReadFromFIFO36; begin $display("Read from FIFO36"); diff --git a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v index a7c686e7e..81587e25c 100644 --- a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v +++ b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v @@ -125,7 +125,7 @@ module aeMB_bpcu (/*AUTOARG*/ reg [31:2] rPC, xPC; reg [31:2] rPCLNK, xPCLNK; - assign iwb_adr_o = rIPC[IW-1:2]; + assign iwb_adr_o = gena ? xIPC[IW-1:2] : rIPC[IW-1:2]; //IJB always @(/*AUTOSENSE*/rBRA or rIPC or rPC or rRESULT) begin //xPCLNK <= (^rATOM) ? rPC : rPC; @@ -168,7 +168,8 @@ module aeMB_bpcu (/*AUTOARG*/ rATOM <= 2'h0; rBRA <= 1'h0; rDLY <= 1'h0; - rIPC <= 30'h0; +// rIPC <= 30'h0; + rIPC <= 30'h3fffffff; // DWORD aligned address rPC <= 30'h0; rPCLNK <= 30'h0; // End of automatics diff --git a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v index 9ffa20ff2..38ca3a023 100644 --- a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v +++ b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v @@ -10,12 +10,10 @@ module aeMB_core_BE parameter MUL=0, parameter BSF=0) (input sys_clk_i, input sys_rst_i, - - output iwb_stb_o, - output [ISIZ-1:0] iwb_adr_o, - input [31:0] iwb_dat_i, - input iwb_ack_i, - + // Instruction port + output [14:0] if_adr, + input [31:0] if_dat, + // Data port output dwb_we_o, output dwb_stb_o, output [DSIZ-1:0] dwb_adr_o, @@ -28,17 +26,28 @@ module aeMB_core_BE input sys_int_i, input sys_exc_i); - assign dwb_cyc_o = dwb_stb_o; + wire [ISIZ-1:0] iwb_adr_o; + wire [31:0] iwb_dat_i; + wire iwb_ack_i; + wire iwb_stb_o; + + assign dwb_cyc_o = dwb_stb_o; + assign iwb_ack_i = 1'b1; + assign if_adr = iwb_adr_o[14:0]; + assign iwb_dat_i = if_dat; + + // Note some "wishbone" instruction fetch signals pruned on external interface + // but not propogated change deep into aeMB. aeMB_edk32 #(.IW(ISIZ),.DW(DSIZ),.MUL(MUL),.BSF(BSF)) aeMB_edk32 (.sys_clk_i(sys_clk_i), .sys_rst_i(sys_rst_i), - + // Instruction Port .iwb_stb_o(iwb_stb_o), .iwb_adr_o(iwb_adr_o[ISIZ-1:2]), .iwb_ack_i(iwb_ack_i), .iwb_dat_i(iwb_dat_i), - + // Data port .dwb_wre_o(dwb_we_o), .dwb_stb_o(dwb_stb_o), .dwb_adr_o(dwb_adr_o[DSIZ-1:2]), diff --git a/fpga/usrp2/sdr_lib/dsp_core_tx.v b/fpga/usrp2/sdr_lib/dsp_core_tx.v index 22d3d44a3..79d92c9b3 100644 --- a/fpga/usrp2/sdr_lib/dsp_core_tx.v +++ b/fpga/usrp2/sdr_lib/dsp_core_tx.v @@ -29,11 +29,11 @@ module dsp_core_tx (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr), .in(set_data),.out({scale_i,scale_q}),.changed()); - setting_reg #(.my_addr(BASE+2)) sr_2 + setting_reg #(.my_addr(BASE+2), .width(10)) sr_2 (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr), .in(set_data),.out({enable_hb1, enable_hb2, interp_rate}),.changed()); - setting_reg #(.my_addr(BASE+4)) sr_4 + setting_reg #(.my_addr(BASE+4), .width(8)) sr_4 (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr), .in(set_data),.out({dacmux_b,dacmux_a}),.changed()); diff --git a/fpga/usrp2/top/Makefile.common b/fpga/usrp2/top/Makefile.common index d0435fa1e..4da64ac28 100644 --- a/fpga/usrp2/top/Makefile.common +++ b/fpga/usrp2/top/Makefile.common @@ -47,7 +47,7 @@ $(ISE_FILE): $$(SOURCES) $$(MAKEFILE_LIST) @echo $@ $(ISE_HELPER) "" -$(BIN_FILE): $(ISE_FILE) +$(BIN_FILE): $(ISE_FILE) $$(SOURCES) $$(MAKEFILE_LIST) @echo $@ $(ISE_HELPER) "Generate Programming File" touch $@ diff --git a/fpga/usrp2/top/u2_rev3/u2_core.v b/fpga/usrp2/top/u2_rev3/u2_core.v index b67d8edd6..9ba3cc136 100644..100755 --- a/fpga/usrp2/top/u2_rev3/u2_core.v +++ b/fpga/usrp2/top/u2_rev3/u2_core.v @@ -277,33 +277,33 @@ module u2_core // /////////////////////////////////////////////////////////////////// // RAM Loader - wire [31:0] ram_loader_dat, iwb_dat; - wire [15:0] ram_loader_adr, iwb_adr; + wire [31:0] ram_loader_dat, if_dat; + wire [15:0] ram_loader_adr; + wire [14:0] if_adr; wire [3:0] ram_loader_sel; - wire ram_loader_stb, ram_loader_we, ram_loader_ack; + wire ram_loader_stb, ram_loader_we; wire iwb_ack, iwb_stb; ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE)) - ram_loader (.clk_i(wb_clk),.rst_i(ram_loader_rst), + ram_loader (.wb_clk(wb_clk),.dsp_clk(dsp_clk),.ram_loader_rst(ram_loader_rst), + .wb_dat(ram_loader_dat),.wb_adr(ram_loader_adr), + .wb_stb(ram_loader_stb),.wb_sel(ram_loader_sel), + .wb_we(ram_loader_we), + .ram_loader_done(ram_loader_done), // CPLD Interface - .cfg_clk_i(cpld_clk), - .cfg_data_i(cpld_din), - .start_o(cpld_start_int), - .mode_o(cpld_mode_int), - .done_o(cpld_done_int), - .detached_i(cpld_detached), - // Wishbone Interface - .wb_dat_o(ram_loader_dat),.wb_adr_o(ram_loader_adr), - .wb_stb_o(ram_loader_stb),.wb_cyc_o(),.wb_sel_o(ram_loader_sel), - .wb_we_o(ram_loader_we),.wb_ack_i(ram_loader_ack), - .ram_loader_done_o(ram_loader_done)); - + .cpld_clk(cpld_clk), + .cpld_din(cpld_din), + .cpld_start(cpld_start_int), + .cpld_mode(cpld_mode_int), + .cpld_done(cpld_done_int), + .cpld_detached(cpld_detached)); + // ///////////////////////////////////////////////////////////////////////// // Processor aeMB_core_BE #(.ISIZ(16),.DSIZ(16),.MUL(0),.BSF(1)) aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst), // Instruction Wishbone bus to I-RAM - .iwb_stb_o(iwb_stb),.iwb_adr_o(iwb_adr), - .iwb_dat_i(iwb_dat),.iwb_ack_i(iwb_ack), + .if_adr(if_adr), + .if_dat(if_dat), // Data Wishbone bus to system bus fabric .dwb_we_o(m0_we),.dwb_stb_o(m0_stb),.dwb_dat_o(m0_dat_i),.dwb_adr_o(m0_adr), .dwb_dat_i(m0_dat_o),.dwb_ack_i(m0_ack),.dwb_sel_o(m0_sel),.dwb_cyc_o(m0_cyc), @@ -317,16 +317,16 @@ module u2_core // I-port connects directly to processor and ram loader wire flush_icache; - ram_harv_cache #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) + ram_harvard #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst), .ram_loader_adr_i(ram_loader_adr[14:0]), .ram_loader_dat_i(ram_loader_dat), .ram_loader_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel), - .ram_loader_we_i(ram_loader_we), .ram_loader_ack_o(ram_loader_ack), + .ram_loader_we_i(ram_loader_we), .ram_loader_done_i(ram_loader_done), - .iwb_adr_i(iwb_adr[14:0]), .iwb_stb_i(iwb_stb), - .iwb_dat_o(iwb_dat), .iwb_ack_o(iwb_ack), + .if_adr(if_adr), + .if_data(if_dat), .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i), .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel), @@ -622,7 +622,7 @@ module u2_core // /////////////////////////////////////////////////////////////////////////////////// // External RAM Interface - +/* localparam PAGE_SIZE = 10; // PAGE SIZE is in bytes, 10 = 1024 bytes wire [15:0] bus2ram, ram2bus; @@ -650,6 +650,7 @@ module u2_core .sram_bw(),.sram_adv(RAM_LDn),.sram_ce(RAM_CENn),.sram_oe(RAM_OEn), .sram_mode(),.sram_zz() ); +*/ assign RAM_CE1n = 0; assign RAM_D[17:16] = 2'bzz; @@ -700,7 +701,8 @@ module u2_core { wr2_flags, rd2_flags }, { GMII_TX_EN,3'd0, wr2_ready_i, wr2_ready_o, rd2_ready_i, rd2_ready_o } }; - assign debug_gpio_0 = debug_mac; //eth_mac_debug; + assign debug_gpio_0 = 0; + //debug_mac; //eth_mac_debug; assign debug_gpio_1 = 0; endmodule // u2_core diff --git a/fpga/usrp2/top/u2_rev3/u2_core_udp.v b/fpga/usrp2/top/u2_rev3/u2_core_udp.v index cb0ed78c7..124930c23 100644 --- a/fpga/usrp2/top/u2_rev3/u2_core_udp.v +++ b/fpga/usrp2/top/u2_rev3/u2_core_udp.v @@ -180,6 +180,11 @@ module u2_core wire [31:0] irq; wire [63:0] vita_time; + wire run_rx, run_tx; + reg run_rx_d1; + always @(posedge dsp_clk) + run_rx_d1 <= run_rx; + // /////////////////////////////////////////////////////////////////////////////////////////////// // Wishbone Single Master INTERCON localparam dw = 32; // Data bus width @@ -279,33 +284,33 @@ module u2_core // /////////////////////////////////////////////////////////////////// // RAM Loader - wire [31:0] ram_loader_dat, iwb_dat; - wire [15:0] ram_loader_adr, iwb_adr; + wire [31:0] ram_loader_dat, if_dat; + wire [15:0] ram_loader_adr; + wire [14:0] if_adr; wire [3:0] ram_loader_sel; - wire ram_loader_stb, ram_loader_we, ram_loader_ack; + wire ram_loader_stb, ram_loader_we; wire iwb_ack, iwb_stb; ram_loader #(.AWIDTH(16),.RAM_SIZE(RAM_SIZE)) - ram_loader (.clk_i(wb_clk),.rst_i(ram_loader_rst), + ram_loader (.wb_clk(wb_clk),.dsp_clk(dsp_clk),.ram_loader_rst(ram_loader_rst), + .wb_dat(ram_loader_dat),.wb_adr(ram_loader_adr), + .wb_stb(ram_loader_stb),.wb_sel(ram_loader_sel), + .wb_we(ram_loader_we), + .ram_loader_done(ram_loader_done), // CPLD Interface - .cfg_clk_i(cpld_clk), - .cfg_data_i(cpld_din), - .start_o(cpld_start_int), - .mode_o(cpld_mode_int), - .done_o(cpld_done_int), - .detached_i(cpld_detached), - // Wishbone Interface - .wb_dat_o(ram_loader_dat),.wb_adr_o(ram_loader_adr), - .wb_stb_o(ram_loader_stb),.wb_cyc_o(),.wb_sel_o(ram_loader_sel), - .wb_we_o(ram_loader_we),.wb_ack_i(ram_loader_ack), - .ram_loader_done_o(ram_loader_done)); - + .cpld_clk(cpld_clk), + .cpld_din(cpld_din), + .cpld_start(cpld_start_int), + .cpld_mode(cpld_mode_int), + .cpld_done(cpld_done_int), + .cpld_detached(cpld_detached)); + // ///////////////////////////////////////////////////////////////////////// // Processor aeMB_core_BE #(.ISIZ(16),.DSIZ(16),.MUL(0),.BSF(1)) aeMB (.sys_clk_i(wb_clk), .sys_rst_i(wb_rst), // Instruction Wishbone bus to I-RAM - .iwb_stb_o(iwb_stb),.iwb_adr_o(iwb_adr), - .iwb_dat_i(iwb_dat),.iwb_ack_i(iwb_ack), + .if_adr(if_adr), + .if_dat(if_dat), // Data Wishbone bus to system bus fabric .dwb_we_o(m0_we),.dwb_stb_o(m0_stb),.dwb_dat_o(m0_dat_i),.dwb_adr_o(m0_adr), .dwb_dat_i(m0_dat_o),.dwb_ack_i(m0_ack),.dwb_sel_o(m0_sel),.dwb_cyc_o(m0_cyc), @@ -319,16 +324,16 @@ module u2_core // I-port connects directly to processor and ram loader wire flush_icache; - ram_harv_cache #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) + ram_harvard #(.AWIDTH(15),.RAM_SIZE(RAM_SIZE),.ICWIDTH(7),.DCWIDTH(6)) sys_ram(.wb_clk_i(wb_clk),.wb_rst_i(wb_rst), .ram_loader_adr_i(ram_loader_adr[14:0]), .ram_loader_dat_i(ram_loader_dat), .ram_loader_stb_i(ram_loader_stb), .ram_loader_sel_i(ram_loader_sel), - .ram_loader_we_i(ram_loader_we), .ram_loader_ack_o(ram_loader_ack), + .ram_loader_we_i(ram_loader_we), .ram_loader_done_i(ram_loader_done), - .iwb_adr_i(iwb_adr[14:0]), .iwb_stb_i(iwb_stb), - .iwb_dat_o(iwb_dat), .iwb_ack_o(iwb_ack), + .if_adr(if_adr), + .if_data(if_dat), .dwb_adr_i(s0_adr[14:0]), .dwb_dat_i(s0_dat_o), .dwb_dat_o(s0_dat_i), .dwb_we_i(s0_we), .dwb_ack_o(s0_ack), .dwb_stb_i(s0_stb), .dwb_sel_i(s0_sel), @@ -418,7 +423,10 @@ module u2_core cycle_count <= 0; else cycle_count <= cycle_count + 1; - + + //compatibility number -> increment when the fpga has been sufficiently altered + localparam compat_num = 32'd1; + wb_readback_mux buff_pool_status (.wb_clk_i(wb_clk), .wb_rst_i(wb_rst), .wb_stb_i(s5_stb), .wb_adr_i(s5_adr), .wb_dat_o(s5_dat_i), .wb_ack_o(s5_ack), @@ -426,7 +434,7 @@ module u2_core .word00(status_b0),.word01(status_b1),.word02(status_b2),.word03(status_b3), .word04(status_b4),.word05(status_b5),.word06(status_b6),.word07(status_b7), .word08(status),.word09({sim_mode,27'b0,clock_divider[3:0]}),.word10(vita_time[63:32]), - .word11(vita_time[31:0]),.word12(32'b0),.word13(irq),.word14(status_enc),.word15(cycle_count) + .word11(vita_time[31:0]),.word12(compat_num),.word13(irq),.word14(status_enc),.word15(cycle_count) ); // ///////////////////////////////////////////////////////////////////////// @@ -461,11 +469,20 @@ module u2_core .tx_f36_data(udp_tx_data), .tx_f36_src_rdy_i(udp_tx_src_rdy), .tx_f36_dst_rdy_o(udp_tx_dst_rdy), .debug(debug_udp) ); + wire [35:0] tx_err_data, udp1_tx_data; + wire tx_err_src_rdy, tx_err_dst_rdy, udp1_tx_src_rdy, udp1_tx_dst_rdy; + fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo (.clk(dsp_clk), .reset(dsp_rst), .clear(0), .datain({rd2_flags,rd2_dat}), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i), - .dataout(udp_tx_data), .src_rdy_o(udp_tx_src_rdy), .dst_rdy_i(udp_tx_dst_rdy)); + .dataout(udp1_tx_data), .src_rdy_o(udp1_tx_src_rdy), .dst_rdy_i(udp1_tx_dst_rdy)); + fifo36_mux #(.prio(0)) mux_err_stream + (.clk(dsp_clk), .reset(dsp_reset), .clear(0), + .data0_i(udp1_tx_data), .src0_rdy_i(udp1_tx_src_rdy), .dst0_rdy_o(udp1_tx_dst_rdy), + .data1_i(tx_err_data), .src1_rdy_i(tx_err_src_rdy), .dst1_rdy_o(tx_err_dst_rdy), + .data_o(udp_tx_data), .src_rdy_o(udp_tx_src_rdy), .dst_rdy_i(udp_tx_dst_rdy)); + fifo_cascade #(.WIDTH(36), .SIZE(ETH_RX_FIFOSIZE)) rx_eth_fifo (.clk(dsp_clk), .reset(dsp_rst), .clear(0), .datain(udp_rx_data), .src_rdy_i(udp_rx_src_rdy), .dst_rdy_o(udp_rx_dst_rdy), @@ -509,12 +526,13 @@ module u2_core // In Rev3 there are only 6 leds, and the highest one is on the ETH connector wire [7:0] led_src, led_sw; - wire [7:0] led_hw = {clk_status,serdes_link_up}; + wire [7:0] led_hw = {run_tx, run_rx, clk_status, serdes_link_up, 1'b0}; setting_reg #(.my_addr(3),.width(8)) sr_led (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr), .in(set_data),.out(led_sw),.changed()); - setting_reg #(.my_addr(8),.width(8)) sr_led_src (.clk(wb_clk),.rst(wb_rst),.strobe(set_stb),.addr(set_addr), - .in(set_data),.out(led_src),.changed()); + + setting_reg #(.my_addr(8),.width(8), .at_reset(8'b0001_1110)) + sr_led_src (.clk(wb_clk),.rst(wb_rst), .strobe(set_stb),.addr(set_addr), .in(set_data),.out(led_src),.changed()); assign leds = (led_src & led_hw) | (~led_src & led_sw); @@ -565,11 +583,6 @@ module u2_core // ///////////////////////////////////////////////////////////////////////// // ATR Controller, Slave #11 - wire run_rx, run_tx; - reg run_rx_d1; - always @(posedge dsp_clk) - run_rx_d1 <= run_rx; - atr_controller atr_controller (.clk_i(wb_clk),.rst_i(wb_rst), .adr_i(sb_adr[5:0]),.sel_i(sb_sel),.dat_i(sb_dat_o),.dat_o(sb_dat_i), @@ -638,40 +651,26 @@ module u2_core // DSP TX wire [35:0] tx_data; - wire [99:0] tx1_data; - wire tx_src_rdy, tx_dst_rdy, tx1_src_rdy, tx1_dst_rdy; - - wire [31:0] debug_vtc, debug_vtd, debug_vt; + wire tx_src_rdy, tx_dst_rdy; + wire [31:0] debug_vt; fifo_cascade #(.WIDTH(36), .SIZE(DSP_TX_FIFOSIZE)) tx_fifo_cascade (.clk(dsp_clk), .reset(dsp_rst), .clear(0), .datain({rd1_flags,rd1_dat}), .src_rdy_i(rd1_ready_o), .dst_rdy_o(rd1_ready_i), .dataout(tx_data), .src_rdy_o(tx_src_rdy), .dst_rdy_i(tx_dst_rdy) ); - vita_tx_deframer #(.BASE(SR_TX_CTRL), .MAXCHAN(1)) vita_tx_deframer - (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), - .data_i(tx_data), .src_rdy_i(tx_src_rdy), .dst_rdy_o(tx_dst_rdy), - .sample_fifo_o(tx1_data), .sample_fifo_src_rdy_o(tx1_src_rdy), .sample_fifo_dst_rdy_i(tx1_dst_rdy), - .debug(debug_vtd) ); - - vita_tx_control #(.BASE(SR_TX_CTRL), .WIDTH(32)) vita_tx_control - (.clk(dsp_clk), .reset(dsp_rst), .clear(0), - .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), - .vita_time(vita_time),.underrun(underrun), - .sample_fifo_i(tx1_data), .sample_fifo_src_rdy_i(tx1_src_rdy), .sample_fifo_dst_rdy_o(tx1_dst_rdy), - .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), - .debug(debug_vtc) ); - - assign debug_vt = debug_vtc | debug_vtd; - - dsp_core_tx #(.BASE(SR_TX_DSP)) dsp_core_tx - (.clk(dsp_clk),.rst(dsp_rst), + vita_tx_chain #(.BASE_CTRL(SR_TX_CTRL), .BASE_DSP(SR_TX_DSP), + .REPORT_ERROR(1), .PROT_ENG_FLAGS(1)) + vita_tx_chain + (.clk(dsp_clk), .reset(dsp_rst), .set_stb(set_stb_dsp),.set_addr(set_addr_dsp),.set_data(set_data_dsp), - .sample(sample_tx), .run(run_tx), .strobe(strobe_tx), + .vita_time(vita_time), + .tx_data_i(tx_data), .tx_src_rdy_i(tx_src_rdy), .tx_dst_rdy_o(tx_dst_rdy), + .err_data_o(tx_err_data), .err_src_rdy_o(tx_err_src_rdy), .err_dst_rdy_i(tx_err_dst_rdy), .dac_a(dac_a),.dac_b(dac_b), - .debug(debug_tx_dsp) ); - + .underrun(underrun), .run(run_tx), + .debug(debug_vt)); + assign dsp_rst = wb_rst; // /////////////////////////////////////////////////////////////////////////////////// @@ -773,8 +772,7 @@ endmodule // u2_core { s6_adr[15:8] }, { s6_adr[7:0] }, { 6'd0, mdio_cpy, MDC } }; -*/ -/* + assign debug = { { GMII_TXD }, { 5'd0, GMII_TX_EN, GMII_TX_ER, GMII_GTX_CLK }, { wr2_flags, rd2_flags }, @@ -783,7 +781,6 @@ endmodule // u2_core { 5'd0, GMII_RX_DV, GMII_RX_ER, GMII_RX_CLK }, { wr2_flags, rd2_flags }, { GMII_TX_EN,3'd0, wr2_ready_i, wr2_ready_o, rd2_ready_i, rd2_ready_o } }; - */ // assign debug = debug_udp; // assign debug = vrc_debug; @@ -794,9 +791,8 @@ endmodule // u2_core {wr1_ready_i, wr1_ready_o, rx1_src_rdy, rx1_dst_rdy, rx1_data[35:32]}}; */ // assign debug_gpio_1 = {vita_time[63:32] }; - -/* - assign debug_gpio_1 = { { tx_f19_data[15:8] }, +/* + assign debug_gpio_1 = { { tx_f19_data[15:8] }, { tx_f19_data[7:0] }, { 3'd0, tx_f19_src_rdy, tx_f19_dst_rdy, tx_f19_data[18:16] }, { 2'b0, rd2_ready_i, rd2_ready_o, rd2_flags } }; diff --git a/fpga/usrp2/udp/prot_eng_tx.v b/fpga/usrp2/udp/prot_eng_tx.v index 9031011f7..a18eb73ae 100644 --- a/fpga/usrp2/udp/prot_eng_tx.v +++ b/fpga/usrp2/udp/prot_eng_tx.v @@ -40,11 +40,16 @@ module prot_eng_tx // Store header values in a small dual-port (distributed) ram reg [HDR_WIDTH-1:0] header_ram[0:HDR_LEN-1]; wire [HDR_WIDTH-1:0] header_word; + reg [15:0] chk_precompute; always @(posedge clk) if(set_stb & ((set_addr & 8'hE0) == BASE)) - header_ram[set_addr[4:0]] <= set_data; - + begin + header_ram[set_addr[4:0]] <= set_data; + if(set_data[18]) + chk_precompute <= set_data[15:0]; + end + assign header_word = header_ram[state]; wire last_hdr_line = header_word[19]; @@ -56,7 +61,7 @@ module prot_eng_tx reg [15:0] length; wire [15:0] ip_length = length + 28; // IP HDR + UDP HDR wire [15:0] udp_length = length + 8; // UDP HDR - + always @(posedge clk) if(reset) begin @@ -101,12 +106,16 @@ module prot_eng_tx wire [15:0] checksum; add_onescomp #(.WIDTH(16)) add_onescomp - (.A(header_word[15:0]),.B(ip_length),.SUM(checksum)); + (.A(chk_precompute),.B(ip_length),.SUM(checksum)); + reg [15:0] checksum_reg; + always @(posedge clk) + checksum_reg <= checksum; + always @* if(ip_chk) //dataout_int <= header_word[15:0] ^ ip_length; - dataout_int <= 16'hFFFF ^ checksum; + dataout_int <= 16'hFFFF ^ checksum_reg; else if(ip_len) dataout_int <= ip_length; else if(udp_len) diff --git a/fpga/usrp2/vrt/Makefile.srcs b/fpga/usrp2/vrt/Makefile.srcs index 07c62224b..dc4bd8c96 100644 --- a/fpga/usrp2/vrt/Makefile.srcs +++ b/fpga/usrp2/vrt/Makefile.srcs @@ -10,4 +10,6 @@ vita_rx_control.v \ vita_rx_framer.v \ vita_tx_control.v \ vita_tx_deframer.v \ +vita_tx_chain.v \ +gen_context_pkt.v \ )) diff --git a/fpga/usrp2/vrt/gen_context_pkt.v b/fpga/usrp2/vrt/gen_context_pkt.v new file mode 100644 index 000000000..780a027ba --- /dev/null +++ b/fpga/usrp2/vrt/gen_context_pkt.v @@ -0,0 +1,72 @@ + + +module gen_context_pkt + #(parameter PROT_ENG_FLAGS=1) + (input clk, input reset, input clear, + input trigger, output sent, + input [31:0] streamid, + input [63:0] vita_time, + input [31:0] message, + output [35:0] data_o, output src_rdy_o, input dst_rdy_i); + + localparam CTXT_IDLE = 0; + localparam CTXT_PROT_ENG = 1; + localparam CTXT_HEADER = 2; + localparam CTXT_STREAMID = 3; + localparam CTXT_SECS = 4; + localparam CTXT_TICS = 5; + localparam CTXT_TICS2 = 6; + localparam CTXT_MESSAGE = 7; + localparam CTXT_DONE = 8; + + reg [33:0] data_int; + wire src_rdy_int, dst_rdy_int; + wire [3:0] seqno = 0; + reg [3:0] ctxt_state; + reg [63:0] err_time; + + always @(posedge clk) + if(reset | clear) + ctxt_state <= CTXT_IDLE; + else + case(ctxt_state) + CTXT_IDLE : + if(trigger) + begin + err_time <= vita_time; + if(PROT_ENG_FLAGS) + ctxt_state <= CTXT_PROT_ENG; + else + ctxt_state <= CTXT_HEADER; + end + + CTXT_DONE : + if(~trigger) + ctxt_state <= CTXT_IDLE; + + default : + if(dst_rdy_int) + ctxt_state <= ctxt_state + 1; + endcase // case (ctxt_state) + + assign src_rdy_int = ~( (ctxt_state == CTXT_IDLE) | (ctxt_state == CTXT_DONE) ); + + always @* + case(ctxt_state) + CTXT_PROT_ENG : data_int <= { 2'b01, 16'd1, 16'd24 }; + CTXT_HEADER : data_int <= { 1'b0, (PROT_ENG_FLAGS ? 1'b0 : 1'b1), 12'b010100001101, seqno, 16'd6 }; + CTXT_STREAMID : data_int <= { 2'b00, streamid }; + CTXT_SECS : data_int <= { 2'b00, err_time[63:32] }; + CTXT_TICS : data_int <= { 2'b00, 32'd0 }; + CTXT_TICS2 : data_int <= { 2'b00, err_time[31:0] }; + CTXT_MESSAGE : data_int <= { 2'b10, message }; + default : data_int <= {2'b00, 32'b00}; + endcase // case (ctxt_state) + + fifo_short #(.WIDTH(34)) ctxt_fifo + (.clk(clk), .reset(reset), .clear(clear), + .datain(data_int), .src_rdy_i(src_rdy_int), .dst_rdy_o(dst_rdy_int), + .dataout(data_o[33:0]), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i)); + assign data_o[35:34] = 2'b00; + +endmodule // gen_context_pkt diff --git a/fpga/usrp2/vrt/vita_rx.build b/fpga/usrp2/vrt/vita_rx.build index f6d2d75a3..010d1be6e 100755 --- a/fpga/usrp2/vrt/vita_rx.build +++ b/fpga/usrp2/vrt/vita_rx.build @@ -1 +1 @@ -iverilog -Wimplict -Wportbind -y ../models -y . -y ../control_lib/ -y ../control_lib/newfifo -y ../coregen -y /opt/Xilinx/10.1/ISE/verilog/src/XilinxCoreLib -y /opt/Xilinx/10.1/ISE/verilog/src/unisims/ -y ../timing -o vita_rx_tb vita_rx_tb.v +iverilog -Wimplict -Wportbind -y ../models -y . -y ../control_lib/ -y ../fifo -y ../coregen -y /opt/Xilinx/10.1/ISE/verilog/src/XilinxCoreLib -y /opt/Xilinx/10.1/ISE/verilog/src/unisims/ -y ../timing -o vita_rx_tb vita_rx_tb.v diff --git a/fpga/usrp2/vrt/vita_rx_control.v b/fpga/usrp2/vrt/vita_rx_control.v index 742dd47e0..93673d292 100644 --- a/fpga/usrp2/vrt/vita_rx_control.v +++ b/fpga/usrp2/vrt/vita_rx_control.v @@ -67,7 +67,7 @@ module vita_rx_control shortfifo #(.WIDTH(96)) commandfifo (.clk(clk),.rst(reset),.clear(clear_int), .datain({new_command,new_time}), .write(write_ctrl&~full_ctrl), .full(full_ctrl), - .dataout({send_imm_pre,chain_pre,reload_pre,numlines_pre,rcvtime_pre}), + .dataout({send_imm_pre,chain_pre,reload_pre,numlines_pre,rcvtime_pre}), .read(read_ctrl), .empty(empty_ctrl), .occupied(command_queue_len), .space() ); @@ -98,7 +98,7 @@ module vita_rx_control .src_rdy_o(sample_fifo_src_rdy_o), .dst_rdy_i(sample_fifo_dst_rdy_i), .space(), .occupied() ); - // Inband Signallling State Machine + // Inband Signalling State Machine time_compare time_compare (.time_now(vita_time), .trigger_time(rcvtime), .now(now), .early(early), .late(late)); @@ -189,4 +189,3 @@ module vita_rx_control { 2'b0, overrun, chain_pre, sample_fifo_in_rdy, attempt_sample_write, sample_fifo_src_rdy_o,sample_fifo_dst_rdy_i} }; endmodule // rx_control - diff --git a/fpga/usrp2/vrt/vita_rx_framer.v b/fpga/usrp2/vrt/vita_rx_framer.v index f3a81664a..fd82263d0 100644 --- a/fpga/usrp2/vrt/vita_rx_framer.v +++ b/fpga/usrp2/vrt/vita_rx_framer.v @@ -99,7 +99,7 @@ module vita_rx_framer localparam VITA_ERR_TICS = 12; localparam VITA_ERR_TICS2 = 13; localparam VITA_ERR_PAYLOAD = 14; - localparam VITA_ERR_TRAILER = 15; + localparam VITA_ERR_TRAILER = 15; // Extension context packets have no trailer always @(posedge clk) if(reset | clear_pkt_count) @@ -107,17 +107,30 @@ module vita_rx_framer else if((vita_state == VITA_TRAILER) & pkt_fifo_rdy) pkt_count <= pkt_count + 1; + wire has_streamid = vita_header[28]; + wire has_trailer = vita_header[26]; + reg trl_eob; + always @* case(vita_state) - VITA_HEADER, VITA_ERR_HEADER : pkt_fifo_line <= {2'b01,vita_header[31:20],pkt_count,vita_pkt_len}; - VITA_STREAMID, VITA_ERR_STREAMID : pkt_fifo_line <= {2'b00,vita_streamid}; - VITA_SECS, VITA_ERR_SECS : pkt_fifo_line <= {2'b00,vita_time_fifo_o[63:32]}; - VITA_TICS, VITA_ERR_TICS : pkt_fifo_line <= {2'b00,32'd0}; - VITA_TICS2, VITA_ERR_TICS2 : pkt_fifo_line <= {2'b00,vita_time_fifo_o[31:0]}; + // Data packets are IF Data packets with or w/o streamid, no classid, with trailer + VITA_HEADER : pkt_fifo_line <= {2'b01,3'b000,vita_header[28],2'b01,vita_header[25:20],pkt_count,vita_pkt_len}; + VITA_STREAMID : pkt_fifo_line <= {2'b00,vita_streamid}; + VITA_SECS : pkt_fifo_line <= {2'b00,vita_time_fifo_o[63:32]}; + VITA_TICS : pkt_fifo_line <= {2'b00,32'd0}; + VITA_TICS2 : pkt_fifo_line <= {2'b00,vita_time_fifo_o[31:0]}; VITA_PAYLOAD : pkt_fifo_line <= {2'b00,data_fifo_o}; - VITA_ERR_PAYLOAD : pkt_fifo_line <= {2'b00,28'd0,flags_fifo_o}; - VITA_TRAILER : pkt_fifo_line <= {2'b10,vita_trailer}; - VITA_ERR_TRAILER : pkt_fifo_line <= {2'b11,vita_trailer}; + VITA_TRAILER : pkt_fifo_line <= {2'b10,vita_trailer[31:21],1'b1,vita_trailer[19:9],trl_eob,8'd0}; + + // Error packets are Extension Context packets, which have no trailer + VITA_ERR_HEADER : pkt_fifo_line <= {2'b01,4'b0101,4'b0000,vita_header[23:20],pkt_count,16'd6}; + VITA_ERR_STREAMID : pkt_fifo_line <= {2'b00,vita_streamid}; + VITA_ERR_SECS : pkt_fifo_line <= {2'b00,vita_time_fifo_o[63:32]}; + VITA_ERR_TICS : pkt_fifo_line <= {2'b00,32'd0}; + VITA_ERR_TICS2 : pkt_fifo_line <= {2'b00,vita_time_fifo_o[31:0]}; + VITA_ERR_PAYLOAD : pkt_fifo_line <= {2'b11,28'd0,flags_fifo_o}; + //VITA_ERR_TRAILER : pkt_fifo_line <= {2'b11,vita_trailer}; + default : pkt_fifo_line <= 34'h0_FFFF_FFFF; endcase // case (vita_state) @@ -141,6 +154,11 @@ module vita_rx_framer end else if(pkt_fifo_rdy) case(vita_state) + VITA_HEADER : + if(has_streamid) + vita_state <= VITA_STREAMID; + else + vita_state <= VITA_SECS; VITA_PAYLOAD : if(sample_fifo_src_rdy_i) begin @@ -148,6 +166,7 @@ module vita_rx_framer begin sample_phase <= 0; sample_ctr <= sample_ctr + 1; + trl_eob <= flags_fifo_o[0]; if(sample_ctr == samples_per_packet) vita_state <= VITA_TRAILER; if(|flags_fifo_o) // end early if any flag is set @@ -155,8 +174,10 @@ module vita_rx_framer end else sample_phase <= sample_phase + 1; - end - VITA_TRAILER, VITA_ERR_TRAILER : + end // if (sample_fifo_src_rdy_i) + VITA_ERR_PAYLOAD : + vita_state <= VITA_IDLE; + VITA_TRAILER : vita_state <= VITA_IDLE; default : vita_state <= vita_state + 1; @@ -172,7 +193,7 @@ module vita_rx_framer VITA_PAYLOAD : // Write if sample ready and no error flags req_write_pkt_fifo <= (sample_fifo_src_rdy_i & ~|flags_fifo_o[3:1]); - VITA_ERR_HEADER, VITA_ERR_STREAMID, VITA_ERR_SECS, VITA_ERR_TICS, VITA_ERR_TICS2, VITA_ERR_PAYLOAD, VITA_ERR_TRAILER : + VITA_ERR_HEADER, VITA_ERR_STREAMID, VITA_ERR_SECS, VITA_ERR_TICS, VITA_ERR_TICS2, VITA_ERR_PAYLOAD : req_write_pkt_fifo <= 1; default : req_write_pkt_fifo <= 0; @@ -192,7 +213,7 @@ module vita_rx_framer ( ((vita_state==VITA_PAYLOAD) & (sample_phase == (numchan-4'd1)) & ~|flags_fifo_o[3:1]) | - (vita_state==VITA_ERR_TRAILER)); + (vita_state==VITA_ERR_PAYLOAD)); assign debug_rx = vita_state; diff --git a/fpga/usrp2/vrt/vita_rx_tb.v b/fpga/usrp2/vrt/vita_rx_tb.v index b4fda9622..3e01e2ee2 100644 --- a/fpga/usrp2/vrt/vita_rx_tb.v +++ b/fpga/usrp2/vrt/vita_rx_tb.v @@ -3,8 +3,8 @@ module vita_rx_tb; localparam DECIM = 8'd4; - localparam MAXCHAN=4; - localparam NUMCHAN=4; + localparam MAXCHAN=1; + localparam NUMCHAN=1; reg clk = 0; reg reset = 1; @@ -94,7 +94,7 @@ module vita_rx_tb; @(posedge clk); write_setting(4,32'hDEADBEEF); // VITA header write_setting(5,32'hF00D1234); // VITA streamid - write_setting(6,32'h98765432); // VITA trailer + write_setting(6,32'hF0000000); // VITA trailer write_setting(7,8); // Samples per VITA packet write_setting(8,NUMCHAN); // Samples per VITA packet queue_rx_cmd(1,0,8,32'h0,32'h0); // send imm, single packet @@ -111,8 +111,13 @@ module vita_rx_tb; queue_rx_cmd(0,0,8,32'h0,32'h340); // send at, on time queue_rx_cmd(0,0,8,32'h0,32'h100); // send at, but late + #100000; + $display("\nChained, break chain\n"); queue_rx_cmd(1,1,8,32'h0,32'h0); // chained, but break chain #100000; + $display("\nSingle packet\n"); + queue_rx_cmd(1,0,8,32'h0,32'h0); // send imm, single packet + #100000; $display("\nEnd chain with zero samples, shouldn't error\n"); queue_rx_cmd(1,1,8,32'h0,32'h0); // chained queue_rx_cmd(0,0,0,32'h0,32'h0); // end chain with zero samples, should keep us out of error diff --git a/fpga/usrp2/vrt/vita_tx_chain.v b/fpga/usrp2/vrt/vita_tx_chain.v new file mode 100644 index 000000000..662cdca62 --- /dev/null +++ b/fpga/usrp2/vrt/vita_tx_chain.v @@ -0,0 +1,71 @@ + +module vita_tx_chain + #(parameter BASE_CTRL=0, + parameter BASE_DSP=0, + parameter REPORT_ERROR=0, + parameter PROT_ENG_FLAGS=0) + (input clk, input reset, + input set_stb, input [7:0] set_addr, input [31:0] set_data, + input [63:0] vita_time, + input [35:0] tx_data_i, input tx_src_rdy_i, output tx_dst_rdy_o, + output [35:0] err_data_o, output err_src_rdy_o, input err_dst_rdy_i, + output [15:0] dac_a, output [15:0] dac_b, + output underrun, output run, + output [31:0] debug); + + localparam MAXCHAN = 1; + localparam FIFOWIDTH = 5+64+16+(32*MAXCHAN); + + wire [FIFOWIDTH-1:0] tx1_data; + wire tx1_src_rdy, tx1_dst_rdy; + wire clear_vita; + wire [31:0] sample_tx; + wire [31:0] streamid, message; + wire trigger, sent; + wire [31:0] debug_vtc, debug_vtd, debug_tx_dsp; + + wire error; + wire [31:0] error_code; + wire clear_seqnum; + + assign underrun = error; + assign message = error_code; + + setting_reg #(.my_addr(BASE_CTRL+2), .at_reset(0)) sr_streamid + (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), + .in(set_data),.out(streamid),.changed(clear_seqnum)); + + vita_tx_deframer #(.BASE(BASE_CTRL), .MAXCHAN(MAXCHAN)) vita_tx_deframer + (.clk(clk), .reset(reset), .clear(clear_vita), .clear_seqnum(clear_seqnum), + .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .data_i(tx_data_i), .src_rdy_i(tx_src_rdy_i), .dst_rdy_o(tx_dst_rdy_o), + .sample_fifo_o(tx1_data), .sample_fifo_src_rdy_o(tx1_src_rdy), .sample_fifo_dst_rdy_i(tx1_dst_rdy), + .debug(debug_vtd) ); + + vita_tx_control #(.BASE(BASE_CTRL), .WIDTH(32*MAXCHAN)) vita_tx_control + (.clk(clk), .reset(reset), .clear(clear_vita), + .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .vita_time(vita_time),.error(error),.error_code(error_code), + .sample_fifo_i(tx1_data), .sample_fifo_src_rdy_i(tx1_src_rdy), .sample_fifo_dst_rdy_o(tx1_dst_rdy), + .sample(sample_tx), .run(run), .strobe(strobe_tx), + .debug(debug_vtc) ); + + dsp_core_tx #(.BASE(BASE_DSP)) dsp_core_tx + (.clk(clk),.rst(reset), + .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data), + .sample(sample_tx), .run(run), .strobe(strobe_tx), + .dac_a(dac_a),.dac_b(dac_b), + .debug(debug_tx_dsp) ); + + generate + if(REPORT_ERROR==1) + gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS)) gen_tx_err_pkt + (.clk(clk), .reset(reset), .clear(clear_vita), + .trigger(error), .sent(), + .streamid(streamid), .vita_time(vita_time), .message(message), + .data_o(err_data_o), .src_rdy_o(err_src_rdy_o), .dst_rdy_i(err_dst_rdy_i)); + endgenerate + + assign debug = debug_vtc | debug_vtd; + +endmodule // vita_tx_chain diff --git a/fpga/usrp2/vrt/vita_tx_control.v b/fpga/usrp2/vrt/vita_tx_control.v index bffc64e52..d0516bec8 100644 --- a/fpga/usrp2/vrt/vita_tx_control.v +++ b/fpga/usrp2/vrt/vita_tx_control.v @@ -6,10 +6,11 @@ module vita_tx_control input set_stb, input [7:0] set_addr, input [31:0] set_data, input [63:0] vita_time, - output underrun, + output error, + output reg [31:0] error_code, // From vita_tx_deframer - input [4+64+WIDTH-1:0] sample_fifo_i, + input [5+64+16+WIDTH-1:0] sample_fifo_i, input sample_fifo_src_rdy_i, output sample_fifo_dst_rdy_o, @@ -20,14 +21,17 @@ module vita_tx_control output [31:0] debug ); - - assign sample = sample_fifo_i[4+64+WIDTH-1:4+64]; + + assign sample = sample_fifo_i[5+64+16+WIDTH-1:5+64+16]; wire [63:0] send_time = sample_fifo_i[63:0]; - wire eop = sample_fifo_i[64]; - wire eob = sample_fifo_i[65]; - wire sob = sample_fifo_i[66]; - wire send_at = sample_fifo_i[67]; + wire [15:0] seqnum = sample_fifo_i[79:64]; + wire eop = sample_fifo_i[80]; + wire eob = sample_fifo_i[81]; + wire sob = sample_fifo_i[82]; + wire send_at = sample_fifo_i[83]; + wire seqnum_err = sample_fifo_i[84]; + wire now, early, late, too_early; // FIXME ignore too_early for now for timing reasons @@ -40,8 +44,15 @@ module vita_tx_control localparam IBS_IDLE = 0; localparam IBS_RUN = 1; // FIXME do we need this? localparam IBS_CONT_BURST = 2; - localparam IBS_UNDERRUN = 3; - localparam IBS_UNDERRUN_DONE = 4; + localparam IBS_ERROR = 3; + localparam IBS_ERROR_DONE = 4; + localparam IBS_ERROR_WAIT = 5; + + wire [31:0] CODE_UNDERRUN = {seqnum,16'd2}; + wire [31:0] CODE_SEQ_ERROR = {seqnum,16'd4}; + wire [31:0] CODE_TIME_ERROR = {seqnum,16'd8}; + wire [31:0] CODE_UNDERRUN_MIDPKT = {seqnum,16'd16}; + wire [31:0] CODE_SEQ_ERROR_MIDBURST = {seqnum,16'd32}; reg [2:0] ibs_state; @@ -50,22 +61,49 @@ module vita_tx_control (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr), .in(set_data),.out(),.changed(clear_state)); + wire [31:0] error_policy; + setting_reg #(.my_addr(BASE+3)) sr_error_policy + (.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr), + .in(set_data),.out(error_policy),.changed()); + + wire policy_wait = error_policy[0]; + wire policy_next_packet = error_policy[1]; + wire policy_next_burst = error_policy[2]; + reg send_error; + always @(posedge clk) if(reset | clear_state) - ibs_state <= 0; + begin + ibs_state <= IBS_IDLE; + send_error <= 0; + end else case(ibs_state) IBS_IDLE : if(sample_fifo_src_rdy_i) - if(~send_at | now) + if(seqnum_err) + begin + ibs_state <= IBS_ERROR; + error_code <= CODE_SEQ_ERROR; + send_error <= 1; + end + else if(~send_at | now) ibs_state <= IBS_RUN; else if(late | too_early) - ibs_state <= IBS_UNDERRUN; + begin + ibs_state <= IBS_ERROR; + error_code <= CODE_TIME_ERROR; + send_error <= 1; + end IBS_RUN : if(strobe) if(~sample_fifo_src_rdy_i) - ibs_state <= IBS_UNDERRUN; + begin + ibs_state <= IBS_ERROR; + error_code <= CODE_UNDERRUN_MIDPKT; + send_error <= 1; + end else if(eop) if(eob) ibs_state <= IBS_IDLE; @@ -74,24 +112,53 @@ module vita_tx_control IBS_CONT_BURST : if(strobe) - ibs_state <= IBS_UNDERRUN_DONE; + begin + if(policy_next_packet) + ibs_state <= IBS_ERROR_DONE; + else if(policy_wait) + ibs_state <= IBS_ERROR_WAIT; + else + ibs_state <= IBS_ERROR; + error_code <= CODE_UNDERRUN; + send_error <= 1; + end else if(sample_fifo_src_rdy_i) - ibs_state <= IBS_RUN; + if(seqnum_err) + begin + ibs_state <= IBS_ERROR; + error_code <= CODE_SEQ_ERROR_MIDBURST; + send_error <= 1; + end + else + ibs_state <= IBS_RUN; - IBS_UNDERRUN : - if(sample_fifo_src_rdy_i & eop) - ibs_state <= IBS_UNDERRUN_DONE; + IBS_ERROR : + begin + send_error <= 0; + if(sample_fifo_src_rdy_i & eop) + if(policy_next_packet | (policy_next_burst & eob)) + ibs_state <= IBS_IDLE; + else if(policy_wait) + ibs_state <= IBS_ERROR_WAIT; + end - IBS_UNDERRUN_DONE : - ; + IBS_ERROR_DONE : + begin + send_error <= 0; + ibs_state <= IBS_IDLE; + end + + IBS_ERROR_WAIT : + send_error <= 0; endcase // case (ibs_state) - assign sample_fifo_dst_rdy_o = (ibs_state == IBS_UNDERRUN) | (strobe & (ibs_state == IBS_RUN)); // FIXME also cleanout + assign sample_fifo_dst_rdy_o = (ibs_state == IBS_ERROR) | (strobe & (ibs_state == IBS_RUN)); // FIXME also cleanout assign run = (ibs_state == IBS_RUN) | (ibs_state == IBS_CONT_BURST); - assign underrun = (ibs_state == IBS_UNDERRUN_DONE); + //assign error = (ibs_state == IBS_ERROR_DONE); + assign error = send_error; assign debug = { { now,early,late,too_early,eop,eob,sob,send_at }, - { sample_fifo_src_rdy_i, sample_fifo_dst_rdy_o, strobe, run, underrun, ibs_state[2:0] }, + { sample_fifo_src_rdy_i, sample_fifo_dst_rdy_o, strobe, run, error, ibs_state[2:0] }, { 8'b0 }, { 8'b0 } }; diff --git a/fpga/usrp2/vrt/vita_tx_deframer.v b/fpga/usrp2/vrt/vita_tx_deframer.v index 220d3b061..f9cd7d00d 100644 --- a/fpga/usrp2/vrt/vita_tx_deframer.v +++ b/fpga/usrp2/vrt/vita_tx_deframer.v @@ -2,7 +2,7 @@ module vita_tx_deframer #(parameter BASE=0, parameter MAXCHAN=1) - (input clk, input reset, input clear, + (input clk, input reset, input clear, input clear_seqnum, input set_stb, input [7:0] set_addr, input [31:0] set_data, // To FIFO interface of Buffer Pool @@ -10,7 +10,7 @@ module vita_tx_deframer input src_rdy_i, output dst_rdy_o, - output [4+64+(32*MAXCHAN)-1:0] sample_fifo_o, + output [5+64+16+(32*MAXCHAN)-1:0] sample_fifo_o, output sample_fifo_src_rdy_o, input sample_fifo_dst_rdy_i, @@ -21,8 +21,10 @@ module vita_tx_deframer output [31:0] debug ); + localparam FIFOWIDTH = 5+64+16+(32*MAXCHAN); + wire [1:0] numchan; - setting_reg #(.my_addr(BASE), .at_reset(0)) sr_numchan + setting_reg #(.my_addr(BASE), .at_reset(0), .width(2)) sr_numchan (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),.out(numchan),.changed()); @@ -36,14 +38,18 @@ module vita_tx_deframer assign is_sob = data_i[25]; assign is_eob = data_i[24]; wire eof = data_i[33]; - reg has_streamid_reg, has_classid_reg, has_secs_reg, has_tics_reg; reg has_trailer_reg, is_sob_reg, is_eob_reg; - + reg [15:0] pkt_len; reg [1:0] vector_phase; wire line_done; + reg seqnum_err; + reg [3:0] seqnum_reg; + wire [3:0] seqnum = data_i[19:16]; + wire [3:0] next_seqnum = seqnum_reg + 4'd1; + // Output FIFO for packetized data localparam VITA_HEADER = 0; localparam VITA_STREAMID = 1; @@ -61,6 +67,13 @@ module vita_tx_deframer wire eop = eof | (pkt_len==hdr_len); // FIXME would ignoring eof allow larger VITA packets? wire fifo_space; + + always @(posedge clk) + if(reset | clear_seqnum) + seqnum_reg <= 4'hF; + else + if((vita_state==VITA_HEADER) & src_rdy_i) + seqnum_reg <= seqnum; always @(posedge clk) if(reset | clear) @@ -68,6 +81,7 @@ module vita_tx_deframer vita_state <= VITA_HEADER; {has_streamid_reg, has_classid_reg, has_secs_reg, has_tics_reg, has_trailer_reg, is_sob_reg, is_eob_reg} <= 0; + seqnum_err <= 0; end else if((vita_state == VITA_STORE) & fifo_space) @@ -99,6 +113,7 @@ module vita_tx_deframer vita_state <= VITA_TICS; else vita_state <= VITA_PAYLOAD; + seqnum_err <= ~(seqnum == next_seqnum); end // case: VITA_HEADER VITA_STREAMID : if(has_classid_reg) @@ -145,7 +160,7 @@ module vita_tx_deframer assign line_done = (vector_phase == numchan); - wire [4+64+32*MAXCHAN-1:0] fifo_i; + wire [FIFOWIDTH-1:0] fifo_i; reg [63:0] send_time; reg [31:0] sample_a, sample_b, sample_c, sample_d; @@ -169,13 +184,14 @@ module vita_tx_deframer endcase // case (vector_phase) wire store = (vita_state == VITA_STORE); - fifo_short #(.WIDTH(4+64+32*MAXCHAN)) short_tx_q + fifo_short #(.WIDTH(FIFOWIDTH)) short_tx_q (.clk(clk), .reset(reset), .clear(clear), .datain(fifo_i), .src_rdy_i(store), .dst_rdy_o(fifo_space), .dataout(sample_fifo_o), .src_rdy_o(sample_fifo_src_rdy_o), .dst_rdy_i(sample_fifo_dst_rdy_i) ); // sob, eob, has_secs (send_at) ignored on all lines except first - assign fifo_i = {sample_d,sample_c,sample_b,sample_a,has_secs_reg,is_sob_reg,is_eob_reg,eop,send_time}; + assign fifo_i = {sample_d,sample_c,sample_b,sample_a,seqnum_err,has_secs_reg,is_sob_reg,is_eob_reg,eop, + 12'd0,seqnum_reg,send_time}; assign dst_rdy_o = ~(vita_state == VITA_PAYLOAD) & ~((vita_state==VITA_STORE)& ~fifo_space) ; |