Closed DepreTux closed 10 months ago
TheKikGen
commented
2 years ago Thanks for your comment. Help us to make the project to be better known !
The midi interface looks like exactly the one I hacked. Midiplus and Miditech are the same company. So I'm almost sure that the hack will work on it.
jnovek
commented
2 years ago I'm working on the silver MIDIPLUS box right now and it would be nice if someone could sanity check this before I set it up. I'm pretty new to STM32 as a platform in general.
From the Miditech instructions (https://github.com/TheKikGen/USBMidiKliK4x4/wiki/The-Miditech-Midiplus-4x4-hack-and-STM32Duino) it seems like you need to:
Anything I'm missing? I've marked all the spots on the attached photo of the silver MIDIPLUS board.
Questions: 1) You mentioned on this page that you had to remove "multiple" resistors, but the only one I see is R28. Am I missing something? 2) Is there a better place to get at boot0 than R27? I suspect not -- it looks like it comes right off of pin 80 -- but that's going to be some dicey soldering for me. I think I'll have to expose some of the trace to properly get at it. I could also replace R27, it appears to be 10k to GND.
TheKikGen
commented
1 year ago Sorry for that very late answer ! I think you could just solder a connector at CN1 and use an ST-LINK V2 Dongle clone to flash directly the firmware. When I hacked this board, I haven't any ST-LINK dongle available, so I used the internal serial bootloader.
TheKikGen
commented
1 year ago Check my other project "Kikpad" here for the Midiplus Smartpad : https://github.com/TheKikGen/kikpad
CN1 Pinout is : 1.GND 2.SWDIO 3.SWDCLK 4.RESET
Do you know if it will work with this version:
https://articulo.mercadolibre.com.ar/MLA-671515228-interfaz-midi-usb-midiplus-midilink-midi-4x4-para-teclado-_JM
It's the only one I could find here
Amazing project, anyway. I'm surprised this is not better known within the electronic music community (at least I just found it).
Thanks for the firmware and the help!