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About fabgar

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    MIDIbox Newbie

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  • Gender Male
  • Location Belgium
  • Interests Electronics, music, synths, good food & drink, film
  1. MIDIbox as base for touch GUI music project

    I have yes, and I found some really cool projects. It's really crazy the stuff people come up with and build! Now, I haven't found any examples with an LCD touch screen interface, so I took a good look at the MIDIbox NG board and yeah, I guess that is going to be difficult. Parallel/RGB won't be possible just because of the lack of pins available. It probably would work via SPI/I2C but that seriously limits the choice in displays. Any ideas on how to do that are always welcome. And thank you for your link! Took quit a bit of reading through the MIOS code to get my head around it and find out how I would write my own code for it. But the link you provided already made things a lot clearer. Anyway, overall I think MIDIbox is really great. Already ordered the STM32F4 board while I'm checking out all the modules ;)
  2. Hi, for the past few weeks I have been looking at development boards as a base for developing audio/music projects. I almost decided on an STM32F7 discovery board until I found out about the MIDIbox NG. This board with its STM32F4 module looks ideal for what I want to do but I have two major questions before I can decide. I'm currently trying to learn as much as I can about MIOS and trying to find related threads on this forum but in the mean time all the help would be greatly appreciated, thanks!   1) Can I use a capacitive touch screen with the MIDIbox NG ? The projects I want to develop will make use of capacitive touch displays from 4.3” up to 7”. Either directly driven from the board or by using an intelligent display like those based on FTDI's EVE or Nextion. But I can't find any example of this, which makes me wonder if it is possible at all ? Would this mean I should write my own driver for MIOS for the screen, or could I use existing drivers and STM32 libraries for this, or even integrate GUI frameworks like µGFX, touchGFX or embedded wizard, etc .. with MIOS ? And how difficult would that be ? Or is MIOS not really designed for this and should I better look into MPU/Linux based solutions?     2) From what I understand so far, MIOS is mainly a MIDI control/processing OS, but how suited is it as a base to develop your own synth for instance? Are there any limitations or can you basically do anything you could do on a barebone STM32 board and thus use all its code examples, libraries, dev tools, toolchain ,etc ? I guess what I'm asking is, how well does MIOS and it's amazing features integrate with your own code or can you only use API functions? How transparent is it and does it impose limitations ?   Are there currently projects like these (synths, Eurorack modules, etc ..) that are based on MIDIbox that I could check out to get an idea what is possible? (I've been looking at the MIDIbox gallery and there are some truly extraordinary devices, but most seem to be controllers and I haven't yet found anything with a touch GUI)   Thanks!