19-08-2019, 05:56 PM
What happens if you try register 47h bits 3 and 4 set to 01 instead of 10? In the same register what does this really do if you set it to 000 instead of the default 111? Does the sync come out somewhere else? And what about the reserved settings. If you are trying to do something a bit special it can be worth poking around the reserved values.
YCbCr output format:
000 = 8-bit 4:2:2 YCbCr with discrete sync output
001 = Reserved
010 = Reserved
011 = Reserved
100 = Reserved
101 = Reserved
110 = Reserved
111 = 8-bit ITU-R BT.656 interface with embedded sync output (default)
Are you looking at HSYNC on pin 25? Or elsewhere? Pin 26 (AVID) might be useful. HSYNC is affected by register 03h bit 2.
YCbCr output format:
000 = 8-bit 4:2:2 YCbCr with discrete sync output
001 = Reserved
010 = Reserved
011 = Reserved
100 = Reserved
101 = Reserved
110 = Reserved
111 = 8-bit ITU-R BT.656 interface with embedded sync output (default)
Are you looking at HSYNC on pin 25? Or elsewhere? Pin 26 (AVID) might be useful. HSYNC is affected by register 03h bit 2.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
