>>8967
About your email. The guy behind the USB-GDROM is incredibly dodgy, plus its more like the GDEMU as my plan is to use an SD card.

FPGAs are a bad choice for a calculator, I want to use an stm32L4 series microcontroller as it has hardware FPU and is low power.

Sometimes, There are some things like trackballs and potentiometers which I obvioulsy won't support, but I want to try to get at least a joystick & 6 buttons mapped to a console.