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protofuse

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Posts posted by protofuse

  1. Protodeck 2 project

    in Design Concepts

    Posted

    hi there,

    this made a long time I didn't come here.

    I'm the guy who made the protodeck controller a long time ago:

    http://julienbayle.net/works/creation/protodeck-midi-controller-for-ableton-live

     

    I have to say I finally didn't use it a lot all along my live sets travel and experiences.

    And I played a lot, but I'd finally use very much simple stuff.

     

    Now, I'd really like to make a pots only device.

     

    Requirements would be:

    - 60 pots with a couple of buttons (no more than 5)

    - pots would be illuminated to easily make "block of pots" with colors

    - pots would be screwable on the faceplate

    - only USB for data + power would be a dream.

     

     

    I have a couple of questions:

    - should I follow the LPC17 way ?

    - for my box, is there a new service on the web for making the whole stuff easily using template for instance ?

    - for about to 60 pots (illuminated by led) would the usb power supply enough ? (I guess no. but are there pots to try to find out in order to reduce consumption?)

    - any ideas about nice illuminated pots ?

     

     

    I would design this not because I want to make a proof of concept but because I need it on stage.

    drehbank stuff was nice, I just cannot find one and I need USB stuff instead of DIN, anyway.

    I mean, if I know the technology behind this, I need to build it in next month without loosing too much time (this is why I would be happy to use template for the box design)

     

    ANY ideas or advices would be appreciated :)

  4. MBHP_CORE_LPC17 & little hello

    in Parts Questions

    Posted

    Hi friends, it has been a while I didn't come here.

    I hope you are all fine.

    A friend of mine asked me to help him to build a machine.

    We are targetting the MIDIO128 with the new MBHP_CORE_LPC17 (can't wait to test it !!!)

    128 inputs + 128 outputs is huge, but he needs a lot of buttons/leds (kind of super monome clone)

    the LPCXpresso kit is required for that ?

    kiss,

    julien

  5. MIOS32 toolchain w/ gcc or sourcery stuff ?

    in MIDIbox Tools & MIOS Studio

    Posted

    If you are using Windows, you are best to download the CodeSourcery toolchain. This includes the gnu gcc cross-compiler and newlib which are required for building MIOS32 apps.

    You are welcome to download the source for binutils/gcc/newlib etc yourself but building a cross-compiler is not a straight-forward task (especially on Windows).

    TK and I have been working on providing a "MIDIbox" toolchain using the same versions of all tools for Windows/Linux/Mac OS X but this may take some time as the latest version of gcc or newlib compiles larger code than older versions (we aren't really sure which yet).

    If you just want to compile MIOS32 apps on Windows then the CodeSourcery toolchain is the way to go at the moment but beware, if you are compiling SEQv4 then don't use the latest CodeSourcery release (2010q1) as "nuke" found You are best to download 2008q3 at the moment.

    Cheers

    Phil

    ok Phil !

    thanks a lot for your feedback.

    I'm okay here, I can compile etc.

    yeah!

    it wasn't harder than with the mios8.

    all the best, I'll post some other questions on irc right now :)

  6. MIOS32 toolchain w/ gcc or sourcery stuff ?

    in MIDIbox Tools & MIOS Studio

    Posted · Edited by protofuse

    hello friends & gurus,

    I hope you're all fine.

    I was a bit busy these months so I didn't participate enough here :ermm:

    I'm beginning to experiment core32 / toolchain etc.

    I had a question about the toolchain: http://www.midibox.o..._toolchain_core

    today, is the stm32 Cortex M3 supported by the gnu gcc ?

    or do I have to use the sourcery stuff yet?

    all the best

  11. short faders, 10k, linear ...?

    in Parts Questions

    Posted

    hello friends,

    I'm looking for faders 10k linear and ... quite short (around 50mm would be great!)

    I found a lot of short ones but logarithmic.

    So I asked myself if I could use them and use a kind of conversion in the app (in the mios?)

    all ideas/helps would be welcome :)

    all the best,

  15. CORE32, a new start

    in Design Concepts

    Posted

    Right, the "uploader" is part of every successfully compiled MIOS32 project, be it an official one or your own. It can receive uploads via USB or via MIDI. As long as nothing goes terribly wrong you won't ever need a JTAG, but still you could do all your uploads only via JTAG if you want to. As anything you'd upload is in one single package and not split into three parts anymore (like bootoader, MIOS8 and application), every new upload is a fresh start so it doesn't matter which upload method you choose.

    The big benefit of having a JTAG at hand when you program your own stuff is that you can also use the JTAG to debug/trace what your program does using OpenOCD and either Insight or e.g. CodeBlocks.

    S

    thanks a lot for your answer!

    I got it!

  16. CORE32, a new start

    in Design Concepts

    Posted

    That's correct one big upload will both update MIOS and the application. "Big" sounds slow, but in fact it's a lot faster than your average MIOS8 app upload - thanks to USB.

    On a blank chip you'll need to install "the uploader" via JTAG, that's correct.

    thanks nILS.

    I'm feeling more comfortable than when I began with core8 here more than 1 year ago :)

    On the blank chip, the uploader is only in case I want to upload things via USB ?! right?!

    I mean, I could use only JTAG everytime if I wanted to

    no?

    It is only to understand the stuff.

  17. CORE32, a new start

    in Design Concepts

    Posted · Edited by protofuse

    hello friends !

    I hope you're all fine.

    I didn't come here for a while, busy with music, design, ableton live courses & protodeck's demo & use and last little live (check around 7'30 to see the leds..)

    Now, it is the upgrade time !

    I have a couple of questions.

    I read this important thing:

    In distance to MIOS8, MIOS32 doesn't require a separate installation since it is integrated in the application binary.

    It means: I code my app. I compile the whole stuff and upload this *big binary? right ?

    So it means I can modify the os part + adding my app part and compile the whole etc ?

    About uploading.

    in order to understand well.

    On a preprog STM32 (I mean: where uploader already flashed inside), I can upload through USB. OK

    On a virgin device (or on a preprog I would like to reflash on my own in order to test, tweak, understand well) I have to use JTAG or my LTC+COM PORT to wrap the JTAG on CORE32 ... right? (I read http://www.ucapps.de...ap_experts.html )

    all the best,

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