diff options
Diffstat (limited to 'usrp2/control_lib/newfifo/fifo19_to_fifo36.v')
-rw-r--r-- | usrp2/control_lib/newfifo/fifo19_to_fifo36.v | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/usrp2/control_lib/newfifo/fifo19_to_fifo36.v b/usrp2/control_lib/newfifo/fifo19_to_fifo36.v deleted file mode 100644 index 0e6bcea68..000000000 --- a/usrp2/control_lib/newfifo/fifo19_to_fifo36.v +++ /dev/null @@ -1,82 +0,0 @@ - -// Parameter LE tells us if we are little-endian. -// Little-endian means send lower 16 bits first. -// Default is big endian (network order), send upper bits first. - -module fifo19_to_fifo36 - #(parameter LE=0) - (input clk, input reset, input clear, - input [18:0] f19_datain, - input f19_src_rdy_i, - output f19_dst_rdy_o, - - output [35:0] f36_dataout, - output f36_src_rdy_o, - input f36_dst_rdy_i, - output [31:0] debug - ); - - reg f36_sof, f36_eof, f36_occ; - - reg [1:0] state; - reg [15:0] dat0, dat1; - - wire f19_sof = f19_datain[16]; - wire f19_eof = f19_datain[17]; - wire f19_occ = f19_datain[18]; - - wire xfer_out = f36_src_rdy_o & f36_dst_rdy_i; - - always @(posedge clk) - if(f19_src_rdy_i & ((state==0)|xfer_out)) - f36_sof <= f19_sof; - - always @(posedge clk) - if(f19_src_rdy_i & ((state != 2)|xfer_out)) - f36_eof <= f19_eof; - - always @(posedge clk) // FIXME check this - if(f19_eof) - f36_occ <= {state[0],f19_occ}; - else - f36_occ <= 0; - - always @(posedge clk) - if(reset) - state <= 0; - else - if(f19_src_rdy_i) - case(state) - 0 : - if(f19_eof) - state <= 2; - else - state <= 1; - 1 : - state <= 2; - 2 : - if(xfer_out) - if(~f19_eof) - state <= 1; - // remain in state 2 if we are at eof - endcase // case(state) - else - if(xfer_out) - state <= 0; - - always @(posedge clk) - if(f19_src_rdy_i & (state==1)) - dat1 <= f19_datain; - - always @(posedge clk) - if(f19_src_rdy_i & ((state==0) | xfer_out)) - dat0 <= f19_datain; - - assign f19_dst_rdy_o = xfer_out | (state != 2); - assign f36_dataout = LE ? {f36_occ,f36_eof,f36_sof,dat1,dat0} : - {f36_occ,f36_eof,f36_sof,dat0,dat1}; - assign f36_src_rdy_o = (state == 2); - - assign debug = state; - -endmodule // fifo19_to_fifo36 |