diff options
Diffstat (limited to 'usrp2')
| -rw-r--r-- | usrp2/control_lib/fifo_to_wb.v | 34 | ||||
| -rw-r--r-- | usrp2/gpif/gpif.v | 9 | ||||
| -rw-r--r-- | usrp2/top/u1plus/u1plus_core.v | 14 |
3 files changed, 50 insertions, 7 deletions
diff --git a/usrp2/control_lib/fifo_to_wb.v b/usrp2/control_lib/fifo_to_wb.v new file mode 100644 index 000000000..fdc76f89e --- /dev/null +++ b/usrp2/control_lib/fifo_to_wb.v @@ -0,0 +1,34 @@ + +module fifo_to_wb + (input clk, input reset, input clear, + input [35:0] data_i, input src_rdy_i, output dst_rdy_o, + output [35:0] data_o, output src_rdy_o, input dst_rdy_i, + output [10:0] wb_adr_o, output [15:0] wb_dat_mosi, input [15:0] wb_dat_miso, + output wb_sel_o, output wb_cyc_o, output wb_stb_o, output wb_we_o, input wb_ack_i, + output [31:0] debug0, output [31:0] debug1); + + wire [35:0] ctrl_data, resp_data; + wire ctrl_src_rdy, ctrl_dst_rdy, resp_src_rdy, resp_dst_rdy; + + fifo_short #(.WIDTH(36)) ctrl_sfifo + (.clk(clk), .reset(reset), .clear(clear), + .datain(data_i), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o), + .dataout(ctrl_data), .src_rdy_o(ctrl_src_rdy), .dst_rdy_i(ctrl_dst_rdy)); + + fifo_short #(.WIDTH(36)) resp_sfifo + (.clk(clk), .reset(reset), .clear(clear), + .datain(resp_data), .src_rdy_i(resp_src_rdy), .dst_rdy_o(resp_dst_rdy), + .dataout(data_o), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i)); + + // Loopback control packets + + assign resp_data = ctrl_data; + assign resp_src_rdy = ctrl_src_rdy; + assign ctrl_dst_rdy = resp_dst_rdy; + + assign debug0 = ctrl_data[31:0]; + assign debug1 = { ctrl_src_rdy, ctrl_dst_rdy, resp_src_rdy, resp_dst_rdy, ctrl_data[35:31] }; + +endmodule // fifo_to_wb + + diff --git a/usrp2/gpif/gpif.v b/usrp2/gpif/gpif.v index bd813126f..9697a7f8b 100644 --- a/usrp2/gpif/gpif.v +++ b/usrp2/gpif/gpif.v @@ -17,7 +17,7 @@ module gpif output [35:0] tx_data_o, output tx_src_rdy_o, input tx_dst_rdy_i, input [35:0] rx_data_i, input rx_src_rdy_i, output rx_dst_rdy_o, - output [31:0] debug + output [31:0] debug0, output [31:0] debug1 ); wire WR = gpif_ctl[0]; @@ -105,5 +105,12 @@ module gpif // //////////////////////////////////////////////////////////////////// // FIFO to Wishbone interface + fifo_to_wb fifo_to_wb + (.clk(fifo_clk), .reset(fifo_rst), .clear(0), + .data_i(ctrl_data), .src_rdy_i(ctrl_src_rdy), .dst_rdy_o(ctrl_dst_rdy), + .data_o(resp_data), .src_rdy_o(resp_src_rdy), .dst_rdy_i(resp_dst_rdy), + .wb_adr_o(), .wb_dat_mosi(), .wb_dat_miso(), + .wb_sel_o(), .wb_cyc_o(), .wb_stb_o(), .wb_we_o(), .wb_ack_i(), + .debug0(), .debug1()); endmodule // gpif diff --git a/usrp2/top/u1plus/u1plus_core.v b/usrp2/top/u1plus/u1plus_core.v index 3cdc74835..97064a561 100644 --- a/usrp2/top/u1plus/u1plus_core.v +++ b/usrp2/top/u1plus/u1plus_core.v @@ -54,7 +54,7 @@ module u1plus_core wire [sw-1:0] m0_sel; wire m0_cyc, m0_stb, m0_we, m0_ack, m0_err, m0_rty; - wire [31:0] debug_gpmc; + wire [31:0] debug_gpmc, debug0, debug1; wire [35:0] tx_data, rx_data; wire tx_src_rdy, tx_dst_rdy, rx_src_rdy, rx_dst_rdy; @@ -75,7 +75,7 @@ module u1plus_core .tx_data_o(tx_data), .tx_src_rdy_o(tx_src_rdy), .tx_dst_rdy_i(tx_dst_rdy), .rx_data_i(rx_data), .rx_src_rdy_i(rx_src_rdy), .rx_dst_rdy_o(rx_dst_rdy), - .debug(debug_gpmc)); + .debug0(debug0), .debug1(debug1)); wire rx_sof = rx_data[32]; wire rx_eof = rx_data[33]; @@ -366,14 +366,14 @@ module u1plus_core wire [31:0] atr_lines; wire [31:0] debug_gpio_0, debug_gpio_1; - +/* nsgpio16LE nsgpio16LE(.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_mosi),.dat_o(s4_dat_miso),.ack_o(s4_ack), .atr(atr_lines),.debug_0(debug_gpio_0),.debug_1(debug_gpio_1), .gpio( {io_tx,io_rx} ) ); - +*/ // ///////////////////////////////////////////////////////////////////////// // Settings Bus -- Slave #5 @@ -403,9 +403,11 @@ module u1plus_core // ///////////////////////////////////////////////////////////////////////////////////// // Debug circuitry - assign debug_clk = { 1'b0, clk_fpga }; - assign debug = 0; + assign debug_clk = { gpif_clk, clk_fpga }; + assign debug = debug0; assign debug_gpio_0 = 0; assign debug_gpio_1 = 0; + + assign {io_tx,io_rx} = debug1; endmodule // u1plus_core |