[sdiy] My new dotcom module.. M114 Dual CV-GATE delay

[Mattias Rickardsson]

Interesting... So, can you "scratch" back and forth on the delay time knob
in order to go back and forth in recorded time? :-)

/mr

Den tors 20 maj 2021 23:52Jean-Pierre Desrochers <jpdesroc at oricom.ca> skrev:

> Hi all,
>
>
>
> After some 6 months of hard work and with the precious help
> of *Roman Sowa* (member of this DIY forum) I finally went through
> the final tests and am very happy to introduce my new born M114
> which is a Dual 2msec to 10sec CV-GATE delay.
> Whatever CV/GATE comes in will be stored and sent back
> with a specific dialled delay.
> All this design’s traffic is made around talking SPI devices which are:
>
>
> *- 1 x 64k x 8 SPI SRAM- 2 x 16 bits SPI ADC*
>
> *- 2 x 16 bits SPI DAC*
>
>
>
> Storing the incoming GATE pulses and restoring them delayed was easy task,
> but the most tedious part was to actually store the 2 incoming
> CV voltages in 16bits chunks without losing any precision.
>
> Well *Roman Sowa* came with a nice design of 2 SIP modules
> that did the ADC and DAC conversion within +/1 LSB precision.
> You can see some pictures below..
> And.. as usual this is an open source project so all the needed files are
> available *HERE
> <http://www.arcenson.com/projects/Modular/M114_CV-GATE_DELAY/>*.
>
>
>
> Enjoy !
>
> Jean-Pierre
>
>
>
>
>
>
>
>
>
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