The original schematics I provided for the Arduino + AY-3-8910 was a bit crude for the audio output, it works, but it’s easy to get the audio saturate. I will propose you an update on this, taken from an actual schematic, the one used on the Oric 1/Atmos Continue reading Update on AY-3-8910 schematic
Yes, nearly 1 year after the release of the Issue 6.1, I finally made the Issue 7 that would fix the VSYNC problem the previous release had!
What’s new in the Issue 7:
- There is now a 2 pin header to plug a reset button
- The hardware VSYNC should now work correctly
- One of the two ROM socket has been removed to reduce the schematic complexity, but it is now possible to use the original ROM, or any EPROM without the need to change anything on the PCB, because the /ROMDIS signal has been changed!
- Better, it is now possible, and easily to use a 32K EPROM with the addition of a switch (there are pin on the PCB for this) to select the memory bank.