diff options
Diffstat (limited to 'usrp2/vrt/vita_rx_control.v')
| -rw-r--r-- | usrp2/vrt/vita_rx_control.v | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/usrp2/vrt/vita_rx_control.v b/usrp2/vrt/vita_rx_control.v index 93673d292..ba63181f1 100644 --- a/usrp2/vrt/vita_rx_control.v +++ b/usrp2/vrt/vita_rx_control.v @@ -25,16 +25,14 @@ module vita_rx_control wire [63:0] new_time; wire [31:0] new_command; - wire sc_pre1, clear_int, clear_reg; + wire sc_pre1; - assign clear_int = clear | clear_reg; - wire [63:0] rcvtime_pre; reg [63:0] rcvtime; wire [28:0] numlines_pre; wire send_imm_pre, chain_pre, reload_pre; reg send_imm, chain, reload; - wire full_ctrl, read_ctrl, empty_ctrl, write_ctrl; + wire read_ctrl, empty_ctrl, write_ctrl; reg sc_pre2; wire [33:0] fifo_line; reg [28:0] lines_left, lines_total; @@ -54,21 +52,22 @@ module vita_rx_control (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),.out(new_time[31:0]),.changed(sc_pre1)); - setting_reg #(.my_addr(BASE+3)) sr_clear - (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), - .in(set_data),.out(),.changed(clear_reg)); - // FIFO to store commands sent from the settings bus always @(posedge clk) - sc_pre2 <= sc_pre1; + if(reset | clear) + sc_pre2 <= 0; + else + sc_pre2 <= sc_pre1; + assign write_ctrl = sc_pre1 & ~sc_pre2; wire [4:0] command_queue_len; - shortfifo #(.WIDTH(96)) commandfifo - (.clk(clk),.rst(reset),.clear(clear_int), - .datain({new_command,new_time}), .write(write_ctrl&~full_ctrl), .full(full_ctrl), + + fifo_short #(.WIDTH(96)) commandfifo + (.clk(clk),.reset(reset),.clear(clear), + .datain({new_command,new_time}), .src_rdy_i(write_ctrl), .dst_rdy_o(), .dataout({send_imm_pre,chain_pre,reload_pre,numlines_pre,rcvtime_pre}), - .read(read_ctrl), .empty(empty_ctrl), + .src_rdy_o(empty_ctrl), .dst_rdy_i(read_ctrl), .occupied(command_queue_len), .space() ); reg [33:0] pkt_fifo_line; @@ -92,7 +91,7 @@ module vita_rx_control (ibs_state==IBS_BROKENCHAIN) | (ibs_state==IBS_LATECMD)); fifo_short #(.WIDTH(4+64+WIDTH)) rx_sample_fifo - (.clk(clk),.reset(reset),.clear(clear_int), + (.clk(clk),.reset(reset),.clear(clear), .datain({flags,vita_time,sample}), .src_rdy_i(attempt_sample_write), .dst_rdy_o(sample_fifo_in_rdy), .dataout(sample_fifo_o), .src_rdy_o(sample_fifo_src_rdy_o), .dst_rdy_i(sample_fifo_dst_rdy_i), @@ -107,7 +106,7 @@ module vita_rx_control wire full = ~sample_fifo_in_rdy; always @(posedge clk) - if(reset | clear_int) + if(reset | clear) begin ibs_state <= IBS_IDLE; lines_left <= 0; @@ -185,7 +184,7 @@ module vita_rx_control assign debug_rx = { { ibs_state[2:0], command_queue_len }, { 8'd0 }, - { go_now, too_late, run, strobe, read_ctrl, write_ctrl, full_ctrl, empty_ctrl }, + { go_now, too_late, run, strobe, read_ctrl, write_ctrl, 1'b0, empty_ctrl }, { 2'b0, overrun, chain_pre, sample_fifo_in_rdy, attempt_sample_write, sample_fifo_src_rdy_o,sample_fifo_dst_rdy_i} }; endmodule // rx_control |