writing settings can cause usb devices to malfunction

delan / usb3sun

usb input adapter for sun workstations

https://funny.computer.daz.cat/usb3sun/

ISC License

31 stars 6 forks source link

writing settings can cause usb devices to malfunction #14

Open delan opened 4 months ago

delan commented 4 months ago

affects pcb rev A3 and firmware 1.5
affects Microsoft Wheel Mouse Optical 1.1A (045E:0040)
- writing settings has a >20% chance of causing malfunction
- red led goes dim, mouse spews reports until disconnected
probably due to suspending interrupts and pausing the other core when writing to flash
- same failure if you replace Settings::write impl with just noInterrupts() + sleep_ms(5) + interrupts()

delan commented 3 months ago

workaround in firmware 2.0: settings are now saved when you close the menu, and you can hold Shift to reboot the adapter after saving (Shift+Enter).