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axi_hdmi_rx: Fix synchronization issues

main
Istvan Csomortani 2015-06-23 15:33:17 +03:00
parent 4e30a5b0bf
commit 00bc48bc24
1 changed files with 7 additions and 3 deletions
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10
library/axi_hdmi_rx/axi_hdmi_rx_core.v
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@ -94,6 +94,7 @@ module axi_hdmi_rx_core (
reg hdmi_dma_sof = 'd0;
reg hdmi_dma_de = 'd0;
reg hdmi_dma_de_cnt = 'd0;
reg [63:0] hdmi_dma_data = 'd0;
reg hdmi_dma_sof_int = 'd0;
reg hdmi_dma_de_int = 'd0;
@ -156,8 +157,9 @@ module axi_hdmi_rx_core (
end else if (hdmi_dma_de == 1'b1) begin
hdmi_dma_sof <= 1'b0;
end
hdmi_dma_de <= ~hdmi_dma_de & hdmi_dma_de_int;
hdmi_dma_de <= hdmi_dma_de_cnt & hdmi_dma_de_int;
if (hdmi_dma_de_int == 1'b1) begin
hdmi_dma_de_cnt <= ~hdmi_dma_de_cnt;
hdmi_dma_data[63:32] <= hdmi_dma_data_int;
hdmi_dma_data[31: 0] <= hdmi_dma_data[63:32];
end
@ -210,7 +212,9 @@ module axi_hdmi_rx_core (
hdmi_data_444[15: 8] <= hdmi_data_444_s[15: 8];
hdmi_data_444[ 7: 0] <= hdmi_data_444_s[ 7: 0];
end
if (hdmi_de_444 == 1'b1) begin
if (hdmi_sof_444 == 1'b1) begin
hdmi_de_444_cnt <= (hdmi_de_444 == 1'b1) ? 2'b1 : 2'b0;
end else if (hdmi_de_444 == 1'b1) begin
hdmi_de_444_cnt <= hdmi_de_444_cnt + 1'b1;
end
hdmi_data_444_hold <= hdmi_data_444[23:8];
@ -218,7 +222,7 @@ module axi_hdmi_rx_core (
hdmi_de_444_p <= hdmi_de_444_cnt[0] | hdmi_de_444_cnt[1];
case (hdmi_de_444_cnt)
2'b11: hdmi_data_444_p <= {hdmi_data_444[23:0], hdmi_data_444_hold[15: 8]};
2'b10: hdmi_data_444_p <= {hdmi_data_444[15:8], hdmi_data_444_hold[15: 0]};
2'b10: hdmi_data_444_p <= {hdmi_data_444[15:0], hdmi_data_444_hold[15: 0]};
2'b01: hdmi_data_444_p <= {hdmi_data_444[ 7:0], hdmi_data_444_p[23: 0]};
default: hdmi_data_444_p <= {8'd0, hdmi_data_444};
endcase