github.com/mist-devel.mist-board
1
0
Fork 0
mirror of https://github.com/mist-devel/mist-board.git synced 2026-02-05 15:44:40 +00:00
Code Issues Releases Wiki Activity

Archie: vidc flybk should be active after the end of the display

Browse Source 
...until the first displayed one, according to the datasheet.

Fixes Elite in 15kHz
This commit is contained in:
Gyorgy Szombathelyi
2019-10-22 14:22:28 +02:00
parent bb67e0f089
commit ef4be11a52
1 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
cores/archie/rtl/vidc_timing.v
View File

@@ -199,15 +199,20 @@ always @(posedge clkvid) begin
if (vcount == vidc_vbsr) vborder <= 1;
if (vcount == vidc_vber) vborder <= 0;
if (vcount == vidc_vdsr) vdisplay <= 1;
if (vcount == vidc_vder) vdisplay <= 0;
if (vcount == vidc_vber) vflyback <= 1;
if (vcount == vidc_vder) begin
vdisplay <= 0;
vflyback <= 1;
end
if (vcount == vidc_vcsr) vcursor <= 1;
if (vcount == vidc_vcer) vcursor <= 0;
if (vcount == vidc_vswr) vsync <= 0;
if (vcount == vidc_vswr) begin
vsync <= 0;
vflyback <= 0;
end
if (vcount == vidc_vcr) begin
vcount <= 0;
vflyback <= 0;
vflyback <= 1; // turn vflayback on even if vder is crazy-programmed
vsync <= 1;
end
end