Closed DepreTux closed 8 months 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.
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.
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.
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!