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| author | Josh Blum <josh@joshknows.com> | 2013-03-14 17:49:57 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2013-03-14 17:49:57 -0700 |
| commit | a370cb47bbec9a237dfd50b5247d621cd8ab5f4e (patch) | |
| tree | 3bd27bfb1f263a221f055218cddda90c15553e02 /usrp2/gpmc/fifo_to_gpmc.v | |
| parent | 8d91709d43f8df717abc8e05967e63c60887cd87 (diff) | |
| download | uhd-a370cb47bbec9a237dfd50b5247d621cd8ab5f4e.tar.gz uhd-a370cb47bbec9a237dfd50b5247d621cd8ab5f4e.tar.bz2 uhd-a370cb47bbec9a237dfd50b5247d621cd8ab5f4e.zip | |
e100: switch to fixed length xfers
Diffstat (limited to 'usrp2/gpmc/fifo_to_gpmc.v')
| -rw-r--r-- | usrp2/gpmc/fifo_to_gpmc.v | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/usrp2/gpmc/fifo_to_gpmc.v b/usrp2/gpmc/fifo_to_gpmc.v index 26443a702..93341975d 100644 --- a/usrp2/gpmc/fifo_to_gpmc.v +++ b/usrp2/gpmc/fifo_to_gpmc.v @@ -46,7 +46,6 @@ module fifo_to_gpmc output reg data_available); //states for the GPMC side of things - wire [17:0] data_o; reg gpmc_state; reg [ADDR_WIDTH:1] addr; reg [PTR_WIDTH:0] gpmc_ptr, next_gpmc_ptr; @@ -147,14 +146,11 @@ module fifo_to_gpmc assign dst_rdy_o = fifo_state == FIFO_STATE_FILL; - //assign data from bram output - assign EM_D = data_o[15:0]; - //instantiate dual ported bram for async read + write - ram_2port #(.DWIDTH(18),.AWIDTH(PTR_WIDTH + ADDR_WIDTH)) async_fifo_bram + ram_2port #(.DWIDTH(16),.AWIDTH(PTR_WIDTH + ADDR_WIDTH)) async_fifo_bram (.clka(clk),.ena(1'b1),.wea(src_rdy_i && dst_rdy_o), - .addra({fifo_ptr[PTR_WIDTH-1:0], counter}),.dia(data_i),.doa(), + .addra({fifo_ptr[PTR_WIDTH-1:0], counter}),.dia(data_i[15:0]),.doa(), .clkb(EM_CLK),.enb(1'b1),.web(1'b0), - .addrb({gpmc_ptr[PTR_WIDTH-1:0], addr}),.dib(18'h3ffff),.dob(data_o)); + .addrb({gpmc_ptr[PTR_WIDTH-1:0], addr}),.dib(18'h3ffff),.dob(EM_D)); endmodule // fifo_to_gpmc |