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authorMatt Ettus <matt@ettus.com>2011-03-03 18:34:45 -0800
committerMatt Ettus <matt@ettus.com>2011-03-03 18:34:45 -0800
commite38280063a673e2f12c8196c5713c7decff7764a (patch)
tree4437cd65175b15edcfc76668a211b1375f4e19af /usrp2/fifo/fifo36_mux.v
parent8e27fc0c3c1e14e23f6f66911eb2e1aaaf061484 (diff)
parent8d82fcacc459caac6b3d4ddfd3821f69cc9037ea (diff)
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Merge branch 'gpmc_testing' into ethfifo_reorg
* gpmc_testing: timed packet generator : Temporarily use a checksum rather than a crc to validate packet integrity. correct port names fifo36_mux now has shortfifos on the input ports as well as output timed tester : Bring out src/dst flags for rx chain for testing. u1e: hook up tester controls move declarations to before use hook up under/overruns for debug purposes e100: integrate loopback and timed testing into main image Fix endianess for packet length and sequence number for e100 timed image. put these files in the right place. newfifo is long gone.
Diffstat (limited to 'usrp2/fifo/fifo36_mux.v')
-rw-r--r--usrp2/fifo/fifo36_mux.v37
1 files changed, 25 insertions, 12 deletions
diff --git a/usrp2/fifo/fifo36_mux.v b/usrp2/fifo/fifo36_mux.v
index c6fd40f27..7f0f803ff 100644
--- a/usrp2/fifo/fifo36_mux.v
+++ b/usrp2/fifo/fifo36_mux.v
@@ -10,6 +10,19 @@ module fifo36_mux
input [35:0] data1_i, input src1_rdy_i, output dst1_rdy_o,
output [35:0] data_o, output src_rdy_o, input dst_rdy_i);
+ wire [35:0] data0_int, data1_int;
+ wire src0_rdy_int, dst0_rdy_int, src1_rdy_int, dst1_rdy_int;
+
+ fifo_short #(.WIDTH(36)) mux_fifo_in0
+ (.clk(clk), .reset(reset), .clear(clear),
+ .datain(data0_i), .src_rdy_i(src0_rdy_i), .dst_rdy_o(dst0_rdy_o),
+ .dataout(data0_int), .src_rdy_o(src0_rdy_int), .dst_rdy_i(dst0_rdy_int));
+
+ fifo_short #(.WIDTH(36)) mux_fifo_in1
+ (.clk(clk), .reset(reset), .clear(clear),
+ .datain(data1_i), .src_rdy_i(src1_rdy_i), .dst_rdy_o(dst1_rdy_o),
+ .dataout(data1_int), .src_rdy_o(src1_rdy_int), .dst_rdy_i(dst1_rdy_int));
+
localparam MUX_IDLE0 = 0;
localparam MUX_DATA0 = 1;
localparam MUX_IDLE1 = 2;
@@ -17,8 +30,8 @@ module fifo36_mux
reg [1:0] state;
- wire eof0 = data0_i[33];
- wire eof1 = data1_i[33];
+ wire eof0 = data0_int[33];
+ wire eof1 = data1_int[33];
wire [35:0] data_int;
wire src_rdy_int, dst_rdy_int;
@@ -29,33 +42,33 @@ module fifo36_mux
else
case(state)
MUX_IDLE0 :
- if(src0_rdy_i)
+ if(src0_rdy_int)
state <= MUX_DATA0;
- else if(src1_rdy_i)
+ else if(src1_rdy_int)
state <= MUX_DATA1;
MUX_DATA0 :
- if(src0_rdy_i & dst_rdy_int & eof0)
+ if(src0_rdy_int & dst_rdy_int & eof0)
state <= prio ? MUX_IDLE0 : MUX_IDLE1;
MUX_IDLE1 :
- if(src1_rdy_i)
+ if(src1_rdy_int)
state <= MUX_DATA1;
- else if(src0_rdy_i)
+ else if(src0_rdy_int)
state <= MUX_DATA0;
MUX_DATA1 :
- if(src1_rdy_i & dst_rdy_int & eof1)
+ if(src1_rdy_int & dst_rdy_int & eof1)
state <= MUX_IDLE0;
default :
state <= MUX_IDLE0;
endcase // case (state)
- assign dst0_rdy_o = (state==MUX_DATA0) ? dst_rdy_int : 0;
- assign dst1_rdy_o = (state==MUX_DATA1) ? dst_rdy_int : 0;
- assign src_rdy_int = (state==MUX_DATA0) ? src0_rdy_i : (state==MUX_DATA1) ? src1_rdy_i : 0;
- assign data_int = (state==MUX_DATA0) ? data0_i : data1_i;
+ assign dst0_rdy_int = (state==MUX_DATA0) ? dst_rdy_int : 0;
+ assign dst1_rdy_int = (state==MUX_DATA1) ? dst_rdy_int : 0;
+ assign src_rdy_int = (state==MUX_DATA0) ? src0_rdy_int : (state==MUX_DATA1) ? src1_rdy_int : 0;
+ assign data_int = (state==MUX_DATA0) ? data0_int : data1_int;
fifo_short #(.WIDTH(36)) mux_fifo
(.clk(clk), .reset(reset), .clear(clear),