diff options
Diffstat (limited to 'fpga/usrp2/simple_gemac/simple_gemac_wrapper.v')
| -rw-r--r-- | fpga/usrp2/simple_gemac/simple_gemac_wrapper.v | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v index 9763578b9..ec09379ed 100644 --- a/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v +++ b/fpga/usrp2/simple_gemac/simple_gemac_wrapper.v @@ -18,7 +18,8 @@ module simple_gemac_wrapper #(parameter RXFIFOSIZE=9, - parameter TXFIFOSIZE=9) + parameter TXFIFOSIZE=9, + parameter RX_FLOW_CTRL=0) (input clk125, input reset, // GMII output GMII_GTX_CLK, output GMII_TX_EN, output GMII_TX_ER, output [7:0] GMII_TXD, @@ -60,7 +61,7 @@ module simple_gemac_wrapper .GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD), .GMII_RX_CLK(GMII_RX_CLK), .GMII_RX_DV(GMII_RX_DV), .GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD), - .pause_req(pause_req), .pause_time_req(pause_time_req), + .pause_req(RX_FLOW_CTRL ? pause_req : 1'b0), .pause_time_req(RX_FLOW_CTRL ? pause_time_req : 16'd0), .pause_respect_en(pause_respect_en), .ucast_addr(ucast_addr), .mcast_addr(mcast_addr), .pass_ucast(pass_ucast), .pass_mcast(pass_mcast), .pass_bcast(pass_bcast), @@ -149,10 +150,13 @@ module simple_gemac_wrapper .tx_data(tx_data), .tx_valid(tx_valid), .tx_error(tx_error), .tx_ack(tx_ack)); // Flow Control - flow_ctrl_rx flow_ctrl_rx - (.pause_request_en(pause_request_en), .pause_time(pause_time), .pause_thresh(pause_thresh), - .rx_clk(rx_clk), .rx_reset(rx_reset), .rx_fifo_space(rx_fifo_space), - .tx_clk(tx_clk), .tx_reset(tx_reset), .pause_req(pause_req), .pause_time_req(pause_time_req)); + generate + if(RX_FLOW_CTRL==1) + flow_ctrl_rx flow_ctrl_rx + (.pause_request_en(pause_request_en), .pause_time(pause_time), .pause_thresh(pause_thresh), + .rx_clk(rx_clk), .rx_reset(rx_reset), .rx_fifo_space(rx_fifo_space), + .tx_clk(tx_clk), .tx_reset(tx_reset), .pause_req(pause_req), .pause_time_req(pause_time_req)); + endgenerate wire [31:0] debug_tx, debug_rx; |