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author | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
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committer | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
commit | fd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch) | |
tree | 3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp3/lib/control/axi_test_vfifo.v | |
parent | 3b66804e41891e358c790b453a7a59ec7462dba4 (diff) | |
download | uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.gz uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.bz2 uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.zip |
Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp3/lib/control/axi_test_vfifo.v')
-rw-r--r-- | fpga/usrp3/lib/control/axi_test_vfifo.v | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/fpga/usrp3/lib/control/axi_test_vfifo.v b/fpga/usrp3/lib/control/axi_test_vfifo.v deleted file mode 100644 index a436e9c55..000000000 --- a/fpga/usrp3/lib/control/axi_test_vfifo.v +++ /dev/null @@ -1,139 +0,0 @@ -// -// Test Virtual FIFO's by streaming modulo 2^32 counter (replicated in upper -// and lower 32bits). Test result by tracking count on receive and using -// sticky flag for error indication. -// Also provide signal from MSB of 32bit count to blink LED. -// - -module axi_test_vfifo - #(parameter PACKET_SIZE = 128) - ( - input aclk, - input aresetn, - input enable, - // AXI Stream Out - output reg out_axis_tvalid, - input out_axis_tready, - output [63 : 0] out_axis_tdata, - output reg [7 : 0] out_axis_tstrb, - output reg [7 : 0] out_axis_tkeep, - output reg out_axis_tlast, - output reg [0 : 0] out_axis_tid, - output reg [0 : 0] out_axis_tdest, - input vfifo_full, - // AXI Stream In - input in_axis_tvalid, - output reg in_axis_tready, - input [63 : 0] in_axis_tdata, - input [7 : 0] in_axis_tstrb, - input [7 : 0] in_axis_tkeep, - input in_axis_tlast, - input [0 : 0] in_axis_tid, - input [0 : 0] in_axis_tdest, - // Flags - output reg flag_error, - output heartbeat_in, - output heartbeat_out, - output [31:0] expected_count - ); - - - reg [31:0] out_count; - reg [31:0] in_count; - reg [63:0] in_axis_tdata_reg; - reg in_data_valid; - - - - // - // Output - // - always @(posedge aclk) - if (!aresetn) begin - out_count <= 0; - out_axis_tvalid <= 0; - out_axis_tid <= 0; // Don't care. - out_axis_tdest <= 0; // Only use port 0 of VFIFO. - out_axis_tstrb <= 0; // Unused in VFIFO - out_axis_tkeep <= 8'hFF; // Always use every byte of data - out_axis_tlast <= 1'b0; - end else if (enable) begin - if (~vfifo_full) begin - // Always ready to output new count value. - out_axis_tvalid <= 1; - if (out_axis_tready) - out_count <= out_count + 1; - // Assert TLAST every PACKET_SIZE beats. - if (out_count[15:0] == PACKET_SIZE) - out_axis_tlast <= 1'b1; - else - out_axis_tlast <= 1'b0; - end else begin - out_axis_tvalid <= 0; - end - end else begin - out_axis_tlast <= 1'b0; - out_axis_tvalid <= 0; - end - - assign out_axis_tdata = {out_count,out_count}; - - assign heartbeat_out = out_count[28]; - - - // - // Input (Ignore TLAST signal) - // - always @(posedge aclk) - if (!aresetn) begin - in_axis_tready <= 0; - in_axis_tdata_reg <= 0; - in_data_valid <= 0; - - end else if (enable) begin - in_axis_tready <= 1; - in_axis_tdata_reg <= in_axis_tdata; - if (in_axis_tvalid) - in_data_valid <= 1; - else - in_data_valid <= 0; - end else begin - in_data_valid <= 0; - in_axis_tready <= 0; - end // else: !if(enable) - - - assign heartbeat_in = in_count[28]; - - // - // Input Checker - // - always @(posedge aclk) - if (!aresetn) begin - in_count <= 0; - flag_error <= 0; - end else if (enable) begin - if (in_data_valid) begin - - if ((in_axis_tdata_reg[63:32] != in_count) || (in_axis_tdata_reg[31:0] != in_count)) - begin - flag_error <= 1; - in_count <= in_axis_tdata_reg[63:32] + 1; - end - else - begin - flag_error <= 0; - in_count <= in_count + 1; - end - - end - end - - assign expected_count = in_count; - - -endmodule // axi_test_vfifo - - - - |