diff options
Diffstat (limited to 'usrp2')
| -rw-r--r-- | usrp2/control_lib/nsgpio.v | 76 | ||||
| -rw-r--r-- | usrp2/top/USRP2/u2_core.v | 24 |
2 files changed, 48 insertions, 52 deletions
diff --git a/usrp2/control_lib/nsgpio.v b/usrp2/control_lib/nsgpio.v index 26130cc8e..6c6873fee 100644 --- a/usrp2/control_lib/nsgpio.v +++ b/usrp2/control_lib/nsgpio.v @@ -37,71 +37,57 @@ module nsgpio (input clk_i, input rst_i, - input cyc_i, input stb_i, input [3:0] adr_i, input we_i, input [31:0] dat_i, + input cyc_i, input stb_i, input [4:0] adr_i, input we_i, input [31:0] dat_i, output reg [31:0] dat_o, output reg ack_o, - input [31:0] atr, input [31:0] debug_0, input [31:0] debug_1, - inout [31:0] gpio + input tx, input rx, inout [31:0] gpio ); - reg [63:0] ctrl; - reg [31:0] line; - reg [31:0] lgpio; // LatchedGPIO pins - reg [31:0] ddr; + integer n; + reg [31:0] ddr; + reg [31:0] idle_out, rx_out, tx_out, fdx_out; + reg [31:0] rgpio, igpio; wire wb_acc = cyc_i & stb_i; // WISHBONE access wire wb_wr = wb_acc & we_i; // WISHBONE write access always @(posedge clk_i or posedge rst_i) if (rst_i) - begin - ctrl <= 64'h0; - line <= 0; - end + ddr <= 0; else if (wb_wr) - case( adr_i[3:2] ) - 2'b00 : - line <= dat_i; - 2'b01 : - ddr[31:0] <= dat_i; - 2'b10 : - ctrl[63:32] <= dat_i; - 2'b11 : - ctrl[31:0] <= dat_i; - endcase // case( adr_i[3:2] ) - + case( adr_i[4:2] ) + 3'b000 : + idle_out <= dat_i; + 3'b001 : + rx_out <= dat_i; + 3'b010 : + tx_out <= dat_i; + 3'b011 : + fdx_out <= dat_i; + 3'b100 : + ddr <= dat_i; + endcase // case ( adr_i[4:2] ) + always @(posedge clk_i) - case (adr_i[3:2]) - 2'b00 : - dat_o <= lgpio; - 2'b01 : - dat_o <= ddr; - 2'b10 : - dat_o <= ctrl[63:32]; - 2'b11 : - dat_o <= ctrl[31:0]; - endcase // case(adr_i[3:2]) + dat_o <= gpio; always @(posedge clk_i or posedge rst_i) if (rst_i) ack_o <= 1'b0; else ack_o <= wb_acc & !ack_o; - - // latch GPIO input pins + always @(posedge clk_i) - lgpio <= gpio; - - // assign GPIO outputs - integer n; - reg [31:0] igpio; // temporary internal signal + case({tx,rx}) + 2'b00 : rgpio <= idle_out; + 2'b01 : rgpio <= rx_out; + 2'b10 : rgpio <= tx_out; + 2'b11 : rgpio <= fdx_out; + endcase // case ({tx,rx}) - always @(ctrl or line or debug_1 or debug_0 or atr or ddr) + always @* for(n=0;n<32;n=n+1) - igpio[n] <= ddr[n] ? (ctrl[2*n+1] ? (ctrl[2*n] ? debug_1[n] : debug_0[n]) : - (ctrl[2*n] ? atr[n] : line[n]) ) - : 1'bz; - + igpio[n] <= ddr[n] ? rgpio[n] : 1'bz; + assign gpio = igpio; endmodule - diff --git a/usrp2/top/USRP2/u2_core.v b/usrp2/top/USRP2/u2_core.v index a125e6b4c..0661de3c6 100644 --- a/usrp2/top/USRP2/u2_core.v +++ b/usrp2/top/USRP2/u2_core.v @@ -193,7 +193,7 @@ module u2_core wire uart_tx_int, uart_rx_int; wire [31:0] debug_gpio_0, debug_gpio_1; - wire [31:0] atr_lines; + //wire [31:0] atr_lines; wire [31:0] debug_rx, debug_mac, debug_mac0, debug_mac1, debug_tx_dsp, debug_txc, debug_serdes0, debug_serdes1, debug_serdes2, debug_rx_dsp, debug_udp, debug_extfifo, debug_extfifo2; @@ -423,12 +423,20 @@ module u2_core // ///////////////////////////////////////////////////////////////////////// // GPIOs -- Slave #4 + + nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst), + .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[4:0]),.we_i(s4_we), + .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack), + .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1), + .tx(run_rx0_d1 | rx_rx1_d1), .rx(run_tx), .gpio({io_tx,io_rx}) ); + + /* nsgpio nsgpio(.clk_i(wb_clk),.rst_i(wb_rst), .cyc_i(s4_cyc),.stb_i(s4_stb),.adr_i(s4_adr[3:0]),.we_i(s4_we), .dat_i(s4_dat_o),.dat_o(s4_dat_i),.ack_o(s4_ack), .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1), .gpio({io_tx,io_rx}) ); - + */ // ///////////////////////////////////////////////////////////////////////// // Buffer Pool Status -- Slave #5 @@ -539,12 +547,12 @@ module u2_core // ///////////////////////////////////////////////////////////////////////// // Simple Timer interrupts - + /* simple_timer #(.BASE(SR_SIMTIMER)) simple_timer (.clk(wb_clk), .reset(wb_rst), .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data), .onetime_int(onetime_int), .periodic_int(periodic_int)); - + */ // ///////////////////////////////////////////////////////////////////////// // UART, Slave #10 @@ -558,11 +566,13 @@ module u2_core // ///////////////////////////////////////////////////////////////////////// // ATR Controller, Slave #11 + /* 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), .we_i(sb_we),.stb_i(sb_stb),.cyc_i(sb_cyc),.ack_o(sb_ack), .run_rx(run_rx0_d1 | run_rx1_d1),.run_tx(run_tx),.ctrl_lines(atr_lines) ); + */ // ////////////////////////////////////////////////////////////////////////// // Time Sync, Slave #12 @@ -572,16 +582,16 @@ module u2_core // ///////////////////////////////////////////////////////////////////////// // SD Card Reader / Writer, Slave #13 - + /* sd_spi_wb sd_spi_wb (.clk(wb_clk),.rst(wb_rst), .sd_clk(sd_clk),.sd_csn(sd_csn),.sd_mosi(sd_mosi),.sd_miso(sd_miso), .wb_cyc_i(sd_cyc),.wb_stb_i(sd_stb),.wb_we_i(sd_we), .wb_adr_i(sd_adr[3:2]),.wb_dat_i(sd_dat_o[7:0]),.wb_dat_o(sd_dat_i[7:0]), .wb_ack_o(sd_ack) ); - + assign sd_dat_i[31:8] = 0; - + */ // ///////////////////////////////////////////////////////////////////////// // ADC Frontend wire [23:0] adc_i, adc_q; |