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authorMatt Ettus <matt@ettus.com>2011-03-03 16:36:21 -0800
committerMatt Ettus <matt@ettus.com>2011-03-03 16:36:21 -0800
commit470b20b47da7639bc29740497d1dba6f251ebd97 (patch)
tree7ccd0a157dceaec05a247d07639b273f37e456f0 /usrp2/top/u2_rev3
parent595d341ea6cd9b2207d5443bf79b144f87e9674b (diff)
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make big tx fifo the one doing the clock crossing
Diffstat (limited to 'usrp2/top/u2_rev3')
-rw-r--r--usrp2/top/u2_rev3/u2_core.v14
1 files changed, 3 insertions, 11 deletions
diff --git a/usrp2/top/u2_rev3/u2_core.v b/usrp2/top/u2_rev3/u2_core.v
index 17b732e78..7504efeb3 100644
--- a/usrp2/top/u2_rev3/u2_core.v
+++ b/usrp2/top/u2_rev3/u2_core.v
@@ -433,10 +433,8 @@ module u2_core
// /////////////////////////////////////////////////////////////////////////
// Ethernet MAC Slave #6
- wire [35:0] tx_f36_data;
- wire tx_f36_src_rdy, tx_f36_dst_rdy;
-
- simple_gemac_wrapper #(.RXFIFOSIZE(ETH_RX_FIFOSIZE), .TXFIFOSIZE(6)) simple_gemac_wrapper19
+ simple_gemac_wrapper #(.RXFIFOSIZE(ETH_RX_FIFOSIZE),
+ .TXFIFOSIZE(ETH_TX_FIFOSIZE)) simple_gemac_wrapper19
(.clk125(clk_to_mac), .reset(wb_rst),
.GMII_GTX_CLK(GMII_GTX_CLK), .GMII_TX_EN(GMII_TX_EN),
.GMII_TX_ER(GMII_TX_ER), .GMII_TXD(GMII_TXD),
@@ -444,18 +442,12 @@ module u2_core
.GMII_RX_ER(GMII_RX_ER), .GMII_RXD(GMII_RXD),
.sys_clk(dsp_clk),
.rx_f36_data(wr2_dat), .rx_f36_src_rdy(wr2_ready_i), .rx_f36_dst_rdy(wr2_ready_o),
- .tx_f36_data(tx_f36_data), .tx_f36_src_rdy(tx_f36_src_rdy), .tx_f36_dst_rdy(tx_f36_dst_rdy),
+ .tx_f36_data(rd2_dat), .tx_f36_src_rdy(rd2_ready_o), .tx_f36_dst_rdy(rd2_ready_i),
.wb_clk(wb_clk), .wb_rst(wb_rst), .wb_stb(s6_stb), .wb_cyc(s6_cyc), .wb_ack(s6_ack),
.wb_we(s6_we), .wb_adr(s6_adr), .wb_dat_i(s6_dat_o), .wb_dat_o(s6_dat_i),
.mdio(MDIO), .mdc(MDC),
.debug(debug_mac));
- //eth output to mac tx...
- fifo_cascade #(.WIDTH(36), .SIZE(ETH_TX_FIFOSIZE)) tx_eth_fifo
- (.clk(dsp_clk), .reset(dsp_rst), .clear(0),
- .datain(rd2_dat), .src_rdy_i(rd2_ready_o), .dst_rdy_o(rd2_ready_i),
- .dataout(tx_f36_data), .src_rdy_o(tx_f36_src_rdy), .dst_rdy_i(tx_f36_dst_rdy));
-
// /////////////////////////////////////////////////////////////////////////
// Settings Bus -- Slave #7
settings_bus settings_bus