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groovereiter

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Posts posted by groovereiter

  3. [S]elling my parts (Core, AIN, DIN, Buttons, Pots & Encs) - Hamburg/Germany

    in Fleamarket

    Posted

    Anyone interested in buying parts from my unfinished project?

    1x core v3 module with PIC

    1x ain module

      (both from mike)

    2x DINx4

    1x DINx2

      (made on breadboard/Lochraster, 10mm thin, pin connectors w/ plugs, working stable)

    50x button, black, "Digitast" (Reichelt DT 6 SW)

    2x button, white, "Digitast" (Reichelt DT 6 WS)

    26x Alps pot, 10k, vertical, 6mm (Reichelt RK09K113-LIN10K) <- those are great

    2x Alps slider, 10k, 60mm travel (Reichelt RS60112-LIN10K) <- those are great too ;)

    2x Alps encoder, 24/24 - removed detention, w/o button, 6x11mm (Reichelt STEC12E07)

    1x Alps encoder, 24/24 with detention, horizontal, w/o button, 6x11mm (Reichelt STEC12E05)

    No caps for the pots & encs included (except some unique mousewheel & jogs for the encs ;))

    All controls are soldered on breadbord, you'll have to desolder them by your own but it's done quite easily.

    Every PCB has pin connectors with the fitting plugs for easy disconnecting/connecting.

    If you need photos I can take some, but it should be quite self explanatory I guess.

    Soooooo, awaiting your bids...

  9. 256 DINs?

    in MIDIbox HUIs

    Posted

    Only simple solution I see if programming and testing effort doesn't matter: connect the second DIN/DOUT chain to different GPIO pins, and implement a new SRIO handler (at application level), which scans the two chains in alternating order. This would double the latency (2 mS instead of 1 mS), but it wouldn't affect the CPU load and wouldn't lead to too much additional HW effort. Two GPIOs could be saved, by sharing the So pin between the two DOUT chains, and buffering the SCLK signal between core and the DIN/DOUT chains (4 chains -> 4 buffers). Accordingly two free GPIOs for the second Si signal, and the RCLK (latch output) are required for this method.

    Where do I have to connect the second SR chain to make this work? And wich changes do I have to do to the code? I didn' work on the box for some months so I'm completely out of it and I don't have much time for it in the next year. Since the Hardware part is already done any help is appreciated.

  10. More than 64 buttons in MB64E?

    in MIDIbox HUIs

    Posted

    Hi,

    I built a box with 32 AINs and 80 DINs and the 64e application only handles 64 of them. How can I make them usable? I tried changing the F in "incf TMP2, F" under MB64E_BUTTON_Map_Loop in mb64e_buttins.inc but it didn't work. And how can I make the first four pins of the first shift register send a midi event?

    I know the ain64_din128_dout128_v2_0 application handles all buttons but not my 3 encoders. Maybe I can add the encoder to this?

    Thanks for all hints

  15. SRs wired parallel?

    in Design Concepts

    Posted

    Thanks for your answer.

    ... why don't you just wire the buttons (Buttons-B) to the same pins as Buttons-A? - This should work.

    The reason is quite simple, I would need 16 extra wires for the buttons and leds in the cable between the two units. Together with all the power/ground, SR lines and the wires for the assignment display this would be a quite fat cable. I fear this would also heavily increase the latency because the DIN registers are read periodically. Currently I'm using an old monitor cable (18 wires).

  16. SRs wired parallel?

    in Design Concepts

    Posted

    Hi, after two years I'm close to finish my LC now.

    It consists of two units with one core. One Unit is the mixer and assignment part and the other is a small one with the right hand side of the LC with the MTC display, jogwheel, transport- and function buttons.

    My problem is, that I want some buttons to be present on both units. But since my LC is fully loaded there are not enough shift registers left to define them twice. I guess it isn't possible anyway to define two pins to the same function in the lc_io_table.inc.

    Now the question:

    is it possible to wire the serial chain line parallel to two SR's so that they both are handled as SR number 6 and if I push the play button on SR6a both play-LEDs on SR6a and SR6b light up?

    I'm REALLY hardly trying to avoid building another core for the second unit, at first I'm trying to save money (for the MFs & the upcoming MB64E built into my M-Audio Keystation 8)) and second, what is much more important, there is no space for a core in the small unit and the cases including panels are handworked out of metal. I definitively don't want to build such a case again. Never ever. No way.  :P

    Thanks in advance

  18. How to connect non-motorized faders to MB LC?

    in MIDIbox HUIs

    Posted

    Hi,

    I read in the wiki that you can use standard faders instead of motorfaders for the LC application.

    But how do I connect them? Do I still need the MF Module or is there any way to use my AIN?

    I just couldn't find this answer (unlike every other I was looking for - great documentation/forum).

    Finally I'm getting the rest of the needed parts (after 1 1/2 years) and this is the only big thing I need to know to make my box complete.

    So pleeease help me.

    Thanks in advance,

    groovereiter

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