diff options
Diffstat (limited to 'usrp2/fpga/simple_gemac')
| -rw-r--r-- | usrp2/fpga/simple_gemac/simple_gemac_wrapper.v | 31 | ||||
| -rw-r--r-- | usrp2/fpga/simple_gemac/simple_gemac_wrapper_tb.v | 17 |
2 files changed, 30 insertions, 18 deletions
diff --git a/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v b/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v index 31bc02ebb..b9bc05848 100644 --- a/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v +++ b/usrp2/fpga/simple_gemac/simple_gemac_wrapper.v @@ -59,8 +59,12 @@ module simple_gemac_wrapper // RX FIFO Chain wire rx_ll_sof, rx_ll_eof, rx_ll_src_rdy, rx_ll_dst_rdy; - wire rx_ll_sof2, rx_ll_eof2, rx_ll_src_rdy2_n, rx_ll_dst_rdy2; + + wire rx_ll_sof2, rx_ll_eof2, rx_ll_src_rdy2, rx_ll_dst_rdy2; + wire rx_ll_sof2_n, rx_ll_eof2_n, rx_ll_src_rdy2_n, rx_ll_dst_rdy2_n; + wire [7:0] rx_ll_data, rx_ll_data2; + wire [35:0] rx_f36_data_int1; wire rx_f36_src_rdy_int1, rx_f36_dst_rdy_int1; @@ -75,19 +79,24 @@ module simple_gemac_wrapper .datain(rx_ll_data), .sof_i(rx_ll_sof), .eof_i(rx_ll_eof), .error_i(rx_ll_error), .src_rdy_i(rx_ll_src_rdy), .dst_rdy_o(rx_ll_dst_rdy), .dataout(rx_ll_data2), .sof_o(rx_ll_sof2), .eof_o(rx_ll_eof2), - .error_o(rx_ll_error2), .src_rdy_o(rx_ll_src_rdy2), .dst_rdy_i(~rx_ll_dst_rdy2_n)); + .error_o(rx_ll_error2), .src_rdy_o(rx_ll_src_rdy2), .dst_rdy_i(rx_ll_dst_rdy2)); + assign rx_ll_dst_rdy2 = ~rx_ll_dst_rdy2_n; + assign rx_ll_src_rdy2_n = ~rx_ll_src_rdy2; + assign rx_ll_sof2_n = ~rx_ll_sof2; + assign rx_ll_eof2_n = ~rx_ll_eof2; + ll8_to_fifo36 ll8_to_fifo36 (.clk(rx_clk), .reset(rx_reset), .clear(0), - .ll_data(rx_ll_data2), .ll_sof_n(~rx_ll_sof2), .ll_eof_n(~rx_ll_eof2), - .ll_src_rdy_n(~rx_ll_src_rdy2), .ll_dst_rdy_n(rx_ll_dst_rdy2_n), + .ll_data(rx_ll_data2), .ll_sof_n(rx_ll_sof2_n), .ll_eof_n(rx_ll_eof2_n), + .ll_src_rdy_n(rx_ll_src_rdy2_n), .ll_dst_rdy_n(rx_ll_dst_rdy2_n), .f36_data(rx_f36_data_int1), .f36_src_rdy_o(rx_f36_src_rdy_int1), .f36_dst_rdy_i(rx_f36_dst_rdy_int1)); - cascadefifo_2clock #(.DWIDTH(36), .AWIDTH(9)) rx_2clk_fifo + fifo_2clock_cascade #(.WIDTH(36), .SIZE(6)) rx_2clk_fifo (.wclk(rx_clk), .datain(rx_f36_data_int1), - .src_rdy_i(rx_f36_src_rdy_int1), .dst_rdy_o(rx_f36_dst_rdy_int1), .level_wclk(), + .src_rdy_i(rx_f36_src_rdy_int1), .dst_rdy_o(rx_f36_dst_rdy_int1), .space(), .rclk(sys_clk), .dataout(rx_f36_data), - .src_rdy_o(rx_f36_src_rdy), .dst_rdy_i(rx_f36_dst_rdy), .level_rclk(), .arst(reset)); + .src_rdy_o(rx_f36_src_rdy), .dst_rdy_i(rx_f36_dst_rdy), .occupied(), .arst(reset)); // TX FIFO Chain wire tx_ll_sof, tx_ll_eof, tx_ll_src_rdy, tx_ll_dst_rdy; @@ -97,11 +106,11 @@ module simple_gemac_wrapper wire [35:0] tx_f36_data_int1; wire tx_f36_src_rdy_int1, tx_f36_dst_rdy_int1; - cascadefifo_2clock #(.DWIDTH(36), .AWIDTH(9)) tx_2clk_fifo + fifo_2clock #(.WIDTH(36), .SIZE(6)) tx_2clk_fifo (.wclk(sys_clk), .datain(tx_f36_data), - .src_rdy_i(tx_f36_src_rdy), .dst_rdy_o(tx_f36_dst_rdy), .level_wclk(), + .src_rdy_i(tx_f36_src_rdy), .dst_rdy_o(tx_f36_dst_rdy), .space(), .rclk(tx_clk), .dataout(tx_f36_data_int1), - .src_rdy_o(tx_f36_src_rdy_int1), .dst_rdy_i(tx_f36_dst_rdy_int1), .level_rclk(), .arst(reset)); + .src_rdy_o(tx_f36_src_rdy_int1), .dst_rdy_i(tx_f36_dst_rdy_int1), .occupied(), .arst(reset)); fifo36_to_ll8 fifo36_to_ll8 (.clk(tx_clk), .reset(tx_reset), .clear(clear), @@ -115,7 +124,7 @@ module simple_gemac_wrapper assign tx_ll_dst_rdy2_n = ~tx_ll_dst_rdy2; ll8_shortfifo tx_sfifo - (.clk(rx_clk), .reset(tx_reset), .clear(clear), + (.clk(tx_clk), .reset(tx_reset), .clear(clear), .datain(tx_ll_data2), .sof_i(tx_ll_sof2), .eof_i(tx_ll_eof2), .error_i(0), .src_rdy_i(tx_ll_src_rdy2), .dst_rdy_o(tx_ll_dst_rdy2), .dataout(tx_ll_data), .sof_o(tx_ll_sof), .eof_o(tx_ll_eof), diff --git a/usrp2/fpga/simple_gemac/simple_gemac_wrapper_tb.v b/usrp2/fpga/simple_gemac/simple_gemac_wrapper_tb.v index 164b50724..26a471a49 100644 --- a/usrp2/fpga/simple_gemac/simple_gemac_wrapper_tb.v +++ b/usrp2/fpga/simple_gemac/simple_gemac_wrapper_tb.v @@ -45,8 +45,11 @@ module simple_gemac_wrapper_tb; wire wb_ack; reg [35:0] tx_f36_data=0; - reg tx_f36_src_rdy=0; + reg tx_f36_src_rdy = 0; wire tx_f36_dst_rdy; + wire rx_f36_data; + wire rx_f36_src_rdy; + wire rx_f36_dst_rdy = 1; simple_gemac_wrapper simple_gemac_wrapper (.clk125(eth_clk), .reset(reset), @@ -56,11 +59,11 @@ module simple_gemac_wrapper_tb; .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD), .pause_req(pause_req), .pause_time(pause_time), - .sys_clk(sys_clk), .rx_f36_data(), .rx_f36_src_rdy(), .rx_f36_dst_rdy(), + .sys_clk(sys_clk), .rx_f36_data(rx_f36_data), .rx_f36_src_rdy(rx_f36_src_rdy), .rx_f36_dst_rdy(rx_f36_dst_rdy), .tx_f36_data(tx_f36_data), .tx_f36_src_rdy(tx_f36_src_rdy), .tx_f36_dst_rdy(tx_f36_dst_rdy), .wb_clk(wb_clk), .wb_rst(wb_rst), .wb_stb(wb_stb), .wb_cyc(wb_cyc), .wb_ack(wb_ack), .wb_we(wb_we), - .wb_adr(), .wb_dat_i(wb_dat_i), .wb_dat_o(wb_dat_o), + .wb_adr(wb_adr), .wb_dat_i(wb_dat_i), .wb_dat_o(wb_dat_o), .mdio(), .mdc(), .debug() ); @@ -81,9 +84,9 @@ module simple_gemac_wrapper_tb; @(negedge reset); repeat (10) @(posedge wb_clk); - WishboneWR(0,6'b111001); - WishboneWR(4,16'hF1F2); - WishboneWR(8,32'hF3F4_F5F6); + WishboneWR(0,6'b111101); + WishboneWR(4,16'hA0B0); + WishboneWR(8,32'hC0D0_A1B1); WishboneWR(12,16'h0000); WishboneWR(16,32'h0000_0000); @@ -100,7 +103,7 @@ module simple_gemac_wrapper_tb; repeat (1000) @(posedge sys_clk); - SendPacket_to_fifo36(32'hAABBCCDD,10); // This packet gets dropped by the filters + SendPacket_to_fifo36(32'hA0B0C0D0,10); // This packet gets dropped by the filters repeat (1000) @(posedge sys_clk); |