deskthority

Hi to all

I have a functional [1] DIY terminal-to-usb converter for a model M122. I's made with a promicro board. I can flash TMK or Soarer firmware, which both work fine. I'm trying to flash QMK firmware with no success. QMK firmware is compiled and flashed with no problems, bus keyboard does nothing at all. As in QMK converter/ibm_terminal page says, uses D2 and D5 pins, instead D0 and D1, as TMK/Soarer's does. I've modified keyboards/converter/ibm_terminal/config.h file as follows: I don't now if the problem origin is use a promicro instead a teensy, or a bad pinout assignment (or missing config). I would like use TMK pin assignment, as I can change/check between firmwares.

lsusb (and syslog) recognises correctly the new device as a keyboard.

Thanks in advance.

[1] I've some minor issues with the converter, but generally works

The implementation of of the clock signal seems to be different on the QMK version. It relies on hardware features only available on PD5 (XCK1).

Without re-implementing the code I think you're stuck using PD5.

jsheradin wrote: 21 Feb 2022, 15:43 The implementation of of the clock signal seems to be different on the QMK version. It relies on hardware features only available on PD5 (XCK1).

Without re-implementing the code I think you're stuck using PD5.

Finally, I find a solution.

QMK, (and TMK also) uses D2/D5 pins when using USART protocol, but that's not the only way to work. I've changed my rules.mk this way: And works like a charm. It seems like TMK uses (at least for converters) the same pinout as Soarer's does, but QMK uses USART by default.

Thanks for your help