Antichambre

Programmer
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About Antichambre

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    MIDIbox Guru
  • Birthday July 25

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  1. dipCoreF4 and dipBoardF4, a compact Core.

    ;) Step 1: Bootloader -> PASSED  
  2. dipCoreF4 and dipBoardF4, a compact Core.

    Osh-Park but it's the first time, their first mistake and we are far from first order... communication is good, they answered me in the hour. Dan already refund me some as a gift just for the time spent on soldering and wasted components. Now they are looking for the reason of the error, they are checking their production line. They need to understand before fab it again. This is fine for me, I've got one working I can check everything and maybe leave beta version on next fab directly. I suppose it can happen to the best too. Nobody's perfect.  
  3. dipCoreF4 and dipBoardF4, a compact Core.

    Sorry guys!!! There will be some delay :( Fab made an error, I've found a workaround for this one as I can check everything but the other boards are just good for trash. They connected VBUS to Ground internally, via and pad are connected to the wrong internal plane I think. Fortunately VBUS and 5V are separated by a fuse, there's no more protection but I can switch it On   And check everything before they fab it again.  
  4. dipCoreF4 and dipBoardF4, a compact Core.

    They are here :)
  5. dipCoreF4.002.jpg

    Sorry @Hawkeye I uploaded 3 times the same 2 pictures. :/ But Album upload has always this strange behaviour of saying I don't want for finally doing it.
  6. dipCoreF4.002.jpg

    From the album dipCoreF4

  7. dipCoreF4.001.jpg

    From the album dipCoreF4

  8. Midi I/o board

    MIDI8 is compatible with any 32 bits core. MIDI8 = 2x MIDI-IO.
  9. Unified midiphy SEQ v4+ case backside

    Always! As far as I remember. That's exactly the shade of blue in which I painted my first moped hihi :) There's some red pigment in this blue, name is "bleu nuit" in french ;)
  10. Unified midiphy SEQ v4+ case backside

    Yes Fantastic work!!!  
  11. dipCoreF4 and dipBoardF4, a compact Core.

    Thank you.
  12. dipCoreF4 and dipBoardF4, a compact Core.

    Hot Air station is recommended for this one. It will be corrected in next version. Don't change load capacitor, it's fine. https://blog.adafruit.com/2012/01/24/choosing-the-right-crystal-and-caps-for-your-design/ Best Bruno  
  13. dipCoreF4 and dipBoardF4, a compact Core.

    It depends which one, better to keep 250mW for low value resistors (<100?). This can be optimized later.
  14. dipCoreF4 and dipBoardF4, a compact Core.

    First advantage, One core send a MIDI message all others receive it at the same time, there's no master, no slave ;) It's like a network. All cores in the same box, you don't need transceiver and the 'one wire' bus for 4 cores will not exceed 40cm. Extrnally, between 2 MIDIbox you will need transceivers(RJ11 MCAN Module). I tried 3 machines over 5m only, @2MBit/s with good ADSL cables it works without error. But speed can be reduced to win length and stability.
  15. dipCoreF4 and dipBoardF4, a compact Core.

    Have a look on J18 here: http://www.ucapps.de/mbhp/mbhp_core_stm32f4.pdf Interconnection is like this for MBNet: http://www.ucapps.de/midibox_sid/mbsid_v2_communication.pdf Last diagram is for PIC but it's the same. J18 is present on all Cores, Disco, wCore, you can already try it if use STM32F4 for your project, just 'one wire' ;) ... 2 wires(signal + ground).