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keirf / flashfloppy-osd

On Screen Display and keyboard controller for FlashFloppy
The Unlicense
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Cant get a synced video signal on a Amiga 500 Rev 8A #39

Closed ninjafahrer closed 3 years ago

ninjafahrer commented 3 years ago

FF OSD is correctly wired and a OLED Display is connected in parallel. I am using Firmware 1.8 together with FF Geotk 3.16A. I am getting no sync with the video Signal, have a lot of green lines on the screen. The Amiga is connected via Scart to a TV with a PAL signal. Removing the OLED has no effect.

FF OSD settings are on Auto.

keirf commented 3 years ago

Do you have a picture of the effect? Do you have a ground connection to the Amiga board (via I2C ground wire via Gotek will do, so probably this is ok)? Do you have a picture of your connections to the Amiga mainboard?

ninjafahrer commented 3 years ago

[ IMG_20210224_203944 IMG_20210224_203807 IMG_20210224_203713

keirf commented 3 years ago

Where exactly do you pick up _CSYNC signal? It's hard to tell where that second wire goes, which appears to terminate directly below the ODD CIA lettering. But I'm pretty sure there's no _CSYNC in that little area.

ninjafahrer commented 3 years ago

16143223228042112436215

penfold42 commented 3 years ago

I think thats the wrong pin for CSYNC try this: image

https://www.amigapcb.org/ is a BRILLIANT site

keirf commented 3 years ago

As @penfold42 says.

ninjafahrer commented 3 years ago

Great, that solved the problem!

Thanks for your support!

penfold42 commented 3 years ago

Excellent !