buntay
Senior Member
Hello all.
I need a bit of help here cause i cant seem to grasp this. I would like to jump into playing with some digital pots and my question has 2 parts.
It seems you can only do SPI interfacing and I really don't understand whats supposed to be going on here, can somebody break the hspiout, and the shiftout(spiout) commands down in layman's terms and how to make this work with a digital pot? the manual doesn't seem to quite make sense to me.
The second question is lets say 1 pot with 256 taps isn't enough precision and I would like 2,3, or 4 pots that would give me 512,768,or 1024 taps and the same resistance range. could this be done? how?
Thanks to all in advance that help get me through yet another door in the micro-controller world.
F.
I need a bit of help here cause i cant seem to grasp this. I would like to jump into playing with some digital pots and my question has 2 parts.
It seems you can only do SPI interfacing and I really don't understand whats supposed to be going on here, can somebody break the hspiout, and the shiftout(spiout) commands down in layman's terms and how to make this work with a digital pot? the manual doesn't seem to quite make sense to me.
The second question is lets say 1 pot with 256 taps isn't enough precision and I would like 2,3, or 4 pots that would give me 512,768,or 1024 taps and the same resistance range. could this be done? how?
Thanks to all in advance that help get me through yet another door in the micro-controller world.
F.