add format 34 (1080p30)

sp9bsl · Feb 6, 2021 · 2a35976 · 2a35976
1 parent 3214188
commit 2a35976
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -71,6 +71,8 @@ You'll need to set up a PLL for producing the two HDMI clocks. The pixel clock f
 |1280x720|4|59.94Hz|74.176MHz|
 |1920x1080|16|60Hz|148.5MHz|
 |1920x1080|16|59.94Hz|148.352MHz|
+|1920x1080|34|30Hz|74.25MHz|
+|1920x1080|34|29.97Hz|74.176MHz|
 |720x576|17, 18|50Hz|27MHz|
 |1280x720|19|50Hz|74.25MHz|
 |3840x2160|97, 107|60Hz|594MHz|

diff --git a/src/hdmi.sv b/src/hdmi.sv
@@ -104,7 +104,7 @@ generate
             assign hsync = cx >= 110 && cx < 110 + 40;
             assign vsync = cy >= 5 && cy < 5 + 5;
         end
-        16:
+        16, 34:
         begin
             assign frame_width = 2200;
             assign frame_height = 1125;
@@ -212,8 +212,9 @@ generate
             : VIDEO_ID_CODE == 16 ? 148.5E6
             : VIDEO_ID_CODE == 17 || VIDEO_ID_CODE == 18 ? 27E6
             : VIDEO_ID_CODE == 19 ? 74.25E6
+            : VIDEO_ID_CODE == 34 ? 74.25E6
             : VIDEO_ID_CODE == 97 || VIDEO_ID_CODE == 107 ? 594E6
-            : 0) * (VIDEO_REFRESH_RATE == 59.94 ? 1000.0/1001.0 : 1); // https://groups.google.com/forum/#!topic/sci.engr.advanced-tv/DQcGk5R_zsM
+            : 0) * (VIDEO_REFRESH_RATE == 59.94 || VIDEO_REFRESH_RATE == 29.97 ? 1000.0/1001.0 : 1); // https://groups.google.com/forum/#!topic/sci.engr.advanced-tv/DQcGk5R_zsM
         packet_picker #(
             .VIDEO_ID_CODE(VIDEO_ID_CODE),
             .VIDEO_RATE(VIDEO_RATE),