latigid on

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About latigid on

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    MIDIbox Guru

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  1. midiphy gates/clocks module

    Thanks for the feedback! Re: AOUT_NG: in the MIDIbox paradigm, CV/gate is split into AnalogueOUT and DigitalOUT modules. The assembly above is the DOUT side, which was previously available as a PCB build using a DOUTX4 module, but you needed to provide your own 3.5mm jacks. There have been various solutions over the years, like using Ken Stone breakout PCBs, also Altitude did a combination that had eight each of CVs/gates/clocks/triggers. The AOUT side will be a different design to AOUT_NG. I had a previous incarnation in through hole, but this version is more compact and simplified. (The other one had CV range switches and fine-tune control, but was only four channels in I think 10HP.)   Here's a teaser of transmute8 fresh from OSHPark (thanks for the image Peter!), not tested and won't be for a little while. Hope you like 1206 resistors (or 0805 if you wish!)! Best, Andy  
  2. DINX1 on MIOS8 no load signal on RC-line?

    Yep, should be the other way around. SER is an input, and the data flows out QH back to the Core.
  3. DINX1 on MIOS8 no load signal on RC-line?

    If you have an F4 32-bit Core, you can use MIDIbox_NG to debug DINs. The RC "pulse" at pin 1 should be every 1ms I think. Check the wiring/stripboard layout? Check the correct signals are sent from the PIC J9 (I think).
  4. DINX1 on MIOS8 no load signal on RC-line?

    CLI inhibits clocking in of data. If it floats, probably nothing will be read. SH should be high "most of the time" as this sends a constant data stream, even if the tail is empty. When RC pulses low, the inputs are read and shifted out. The number of SRs shouldn't matter. Did you try "set debug on" in MIOS? Not sure if that's enabled for PIC uCapps. Maybe there's another app you can test?
  5. DINX1 on MIOS8 no load signal on RC-line?

    What is pin 15 connected to? Should be 0V (ground). Please draw a nice diagram of what you have stripboarded, or compare carefully with the DINX1 schematic. Normally, pullup resistors are used. What are your switches switching to?
  6. MIDIbox CV V2 Concept

    I attempted to come up with a "standard" controller and TK. worked on the hardware a bit. I even have some of the control surface PCBs left if you would like to try, however I don't think the idea as it stood will be pursued any more. The fact is that an iPad or other tablet running Lemur gets you 90% of the way there and might be nicer than a 20x2 LCD? You can use SVN checkout software such as Tortoise to get the source and compile, no worries.
  7. midiphy gates/clocks module

      Prototype of an 8x "DOUT" module. It is a simple build of two stacked PCBs called "binaire" and "octal". I reckon it can be done in an hour or less. In the SEQ v4+ context it can be configured as  8 gates, in combination with 8 CVs (in the works) 8 configurable clocks, or 7 clocks plus one start signal 8 triggers. Up to 64 triggers can be generated with the SEQ! Each output has an LED that illuminates with a positive gate. The modules are designed to be easily chainable, so decide how many are needed in your system. 4HP width. It would also work with other SEQ versions. More info to come!
  8. Troubleshooting midiphy SEQ v4+

    At least on Windows you should power cycle the Core between updates. (EDIT: I mean close and restart MIOS, the MCU is automatically reset after updating.) If you really can't get it to boot/be detected any more, JPA0 is there to help on the wCore PCB. If you stuff this jumper, the bootloader will hold during startup. Normally you can then flash in another .hex again.
  9. binaire+octal

    From the album midiphy_euro

    midiphy gate/clocks/triggers module, 4HP
  10. Troubleshooting midiphy SEQ v4+

    Schade/dommage!  You might be able to remove the Matias switches (if really necessary) with your soldering iron heating both pins at once and pulling it out with the other hand/use a vice. A simple vacuum pump can also work wonders. If the LEDs still work, then the sink side of the matrix is okay. Not sure what could be fried just from pushing together.
  11. Troubleshooting midiphy SEQ v4+

    Hi, On lemec_L, left side and both versions, right side, the encoder can touch the header pins. Best is to trim both sides (encoder pins are easier) first and also put a piece of kapton tape or similar between. From the sounds of it, you followed the testing procedure and had all DINs working before soldering in the Matias? Please try to isolate/insulate first and see if that fixes the issue. You can also check if there are longer through-hole components (especially diodes) that short out in beween. If not, please upload a good photo of the rear of the assembly and I will try to help.
  12. midiphy SEQ v4+

    Cases should be ready any day now. They were undergoing final painting this past week. The supply will also be limited, but the next run will be larger. Please consider that we don't have a proper warehouse, so it's impractical to store dozens at a time. We also made a slight revision to the plates to make OLED cabling easier.  We understand that the cases are proving to be the bottleneck and we're working on the supply. Thanks for your patience! 
  13. Using AOUT with Buchla 1.2v/octave

    Maybe TL07x op amps have a limited voltage swing. Check that the output can reach 13.81 V with (I assume) +/-15V power supply (from the data sheet it looks like it should). +/-18V might have more headroom but is pushing the maximum specs. 
  14. Troubleshooting midiphy SEQ v4+

    Looks like R16 is not soldered correctly?
  15. Using AOUT with Buchla 1.2v/octave

    It's a good fix and totally okay from an electrical perspective. You're essentially multiplying by a different number as the DAC doesn't give the correct range by itself.