diff options
Diffstat (limited to 'usrp2/extramfifo/ext_fifo.v')
| -rw-r--r-- | usrp2/extramfifo/ext_fifo.v | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/usrp2/extramfifo/ext_fifo.v b/usrp2/extramfifo/ext_fifo.v index c6a64fc65..b17fde10b 100644 --- a/usrp2/extramfifo/ext_fifo.v +++ b/usrp2/extramfifo/ext_fifo.v @@ -37,7 +37,8 @@ module ext_fifo output dst_rdy_o, // not FULL output [INT_WIDTH-1:0] dataout, output src_rdy_o, // not EMPTY - input dst_rdy_i // READ + input dst_rdy_i, // READ + output reg [31:0] debug ); wire [EXT_WIDTH-1:0] write_data; @@ -46,7 +47,8 @@ module ext_fifo wire almost_full2, full2, empty2; wire [INT_WIDTH-1:0] data_to_fifo; wire [INT_WIDTH-1:0] data_from_fifo; - + wire [FIFO_DEPTH-1:0] capacity; + // FIFO buffers data from UDP engine into external FIFO clock domain. fifo_xlnx_512x36_2clk_36to18 fifo_xlnx_512x36_2clk_36to18_i1 ( @@ -88,7 +90,8 @@ module ext_fifo .space_avail(space_avail), .read_data(read_data), .read_strobe(~almost_full2), - .data_avail(data_avail) + .data_avail(data_avail), + .capacity(capacity) ); `endif // !`ifdef NO_EXT_FIFO @@ -107,5 +110,10 @@ module ext_fifo .empty(empty2)); assign src_rdy_o = ~empty2; + always @ (posedge int_clk) + debug[31:16] = {12'h0,empty2,full1,dst_rdy_i,src_rdy_i }; + + always @ (posedge ext_clk) + debug[15:0] = {3'h0,empty1,space_avail,data_avail,full2,almost_full2,capacity[7:0] }; endmodule // ext_fifo |