diff options
| -rw-r--r-- | par_to_ser.v | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/par_to_ser.v b/par_to_ser.v index 87f9a0e..6b2e375 100644 --- a/par_to_ser.v +++ b/par_to_ser.v @@ -21,18 +21,19 @@ reg [7:0] send_data = 8'hff; always @(posedge clk_i or negedge rst_i) begin if (!rst_i) begin dat_o <= 1'b1; + sending <= 1'b0; + send_data <= 8'hff; end else if (data_valid_i && !sending) begin sending <= 1; - dat_o = dat_i[0]; - send_data[6:0] <= dat_i[7:1]; + dat_o <= dat_i[0]; + send_data <= {1'b1, dat_i[7:1]}; end else if (!data_valid_i) begin sending <= 1'b0; - dat_o = 1'b1; + dat_o <= 1'b1; end else if (sending) begin - dat_o = send_data[0]; - send_data[6:0] <= send_data[7:1]; + dat_o <= send_data[0]; // arbitrary decision: register is filled with a 1 - send_data[7] = 1'b1; + send_data <= {1'b1, send_data[7:1]}; end end |