Off topic digital help needed

[Colin Fraser]

I plan to build a delay similar to this except it will sync to DIN Sync.
No CPU should be required - all you need to do is replace the clock
generator in your delay with the oscillator output of a phase-lock loop
IC. The phase comparator should be fed with the incoming sync pulse (or
midi clock turned into a sync pulse) and a suitably divided-down output
of the PLL oscillator for the note length of delay you want.
I haven't done a schematic for this yet - maybe one day...

C

>----------
>From: 	Matthew Porth[SMTP:mporth at videologic.com]
>Sent: 	17 July 1997 16:27pm
>To: 	synth-diy at horus.sara.nl
>Subject: 	Off topic digital help needed
>
>
>     
>     Hello again,
>     
>        Yes, it's my third posting and I need information (I am still 
>     learning!). What I am after is information on digital delays. 
>     Basically how to build one.
>     
>        I thought of using just a counter, a timer, some static ram and a 
>     DAC/ADC chip which would work but not for my purposes because I 
>     need(want) the delay to sync to midi signals (or a multiple of the 
>     current tempo anyway).
>     
>        Can someone point me in the right direction. I guess I will need to 
>     use some CPU and a UART. But can anyone tell me where to find info on 
>     building CPU based digital circuits.
>     
>        TIA,
>     
>        Matthew.
>