ABHT: large diff

Question

ABHT: large diff

Closed this issue 4 months ago · 10 comments

I installed the wifi chip and clock generator using Voultars tutorial, but whenever I try to change resolution in the first menu, I get "GBS board not responding!". Every other settings seems to work fine, for example when I use the picture control settings I can see it move. I do get a signal but it seems blurry and noisy with white pixels. What should I do?

Answer 1 · 2024-08-19T17:42:38.000Z

I set Cycle SDRAM to 129Mhz and now the noise is gone, but I still need help with changing resolutions

Answer 2 · 2024-08-19T20:08:16.000Z

Tested for continuity and everything seems fine, does anybody know what would it look like if the GBS8200 wasn't in debug mode? I think that might be it since I might've broken the pads for the debug mode

Answer 3 · 2024-08-19T20:41:52.000Z

Reflashed with the correct board instead of the default one but it didn't change anything

Answer 4 · 2024-08-19T22:32:01.000Z

Tried to resolder the debug pins and it looks like the ground is 100% broken, is there any other way to put it into debug mode?

Answer 5 · 2024-08-20T02:16:48.000Z

Hey,
there is no debug mode. Maybe you're thinking of the debug pin signal that has to be soldered?

Answer 6 · 2024-08-20T03:04:44.000Z

Yeah this thing at 26:19 https://youtu.be/1AVXhiTlmgo?si=wKLb6qSk_w4Qr3lJ&t=1579

Answer 7 · 2024-08-21T18:24:02.000Z

I soldered it to pin 37 seen here, and it works but now I have no signal and it says "ABHT: large diff" in the console

Answer 8 · 2024-08-21T18:28:27.000Z

The error only shows when the clock generator is enabled

Answer 9 · 2024-08-21T18:35:41.000Z

Also get "sync skipped ofr wrong: 111.16" and "Error: trying to tune external clock frequency while clock frequency uninitialized!"

Answer 10 · 2024-08-22T00:55:39.000Z

Rewired the clock generator and I think its working? Rebooted with clock gen enabled and it seems to be fine