(11-27-2021, 10:40 AM)admin Wrote: For any cartridges that use the $E000 address you need to make sure that the reset type is set to not use Exrom. This was not the default for the first few dozen boards that I shipped out. You can check and change this through the OLED screen and menu. The real dead test cartridge uses $E000.
Some more updates...
I bought the correct type of I2C OLED and started messing with the board config.
As you pointed out, once I disabled the EXROM under "Reset Method", my Dead Test cart started working reliably, with every reboot.
Now, I'm getting a single flash, which is difficult to diagnose because all of my DRAM chips are testing properly...
So, some progress made, but more work ahead...