[sdiy] Digital pots on OB-Mx [Re: Multi-voice architecture]

[Aaron Lanterman]

On Apr 5, 2010, at 4:02 AM, dragons wrote:

> didn't the OBMX use digital potentiometers for the calibration of each voice ?
> and Paul's question about how many cycles you can use them for is a good point. would the same apply to using eeprom to store settings that are frequently changed ?

See http://users.ece.gatech.edu/~lanterma/obmx

As far as I can tell, to change the values in the digital pots, you need a special calibration ROM and to go through a special calibration procedure; I don't think the main OB-Mx OS software goes in and changes the digital pot values.

- Aaron