SynthModules

I have an AtomPro28-Lite that I will sell if anyone is interested.

Why lite?  It's missing P6 and P7.  This was my 'hot-rodded' AtomPro28 
that I debugged my CVS design with.  I blew out outputs P6 and P7, 
otherwise the part functions fine.

Why would anyone be interested?  It can be used to upgrade a PSIM.

Features:

1. I replaced the resonator with a 16 MHz oscillator for rock-solid 
timing. I'd be willing to put the resonator back on (assuming I can 
locate it) if preferred.

2. Four additional analog inputs / digital outputs.  This is a 28 pin 
DIP that will plug right into the PSIM PCB.  The PSIM has a 40 pin 
socket with the additional pins connected to square pins.  You'd just 
have to run some wires and provide input protection to expand your 
PSIM to 8 analog inputs.

3. It has a power-on reset generator on chip.  I've replaced it with 
an open-drain version so it is compatible with a hard-wired reset 
switch.  It always powers up correctly.

4. Here's the real reason.  It contains 256 bytes of non-volatile 
memory that is accessable with the read and write commands.  I've 
upgraded my PSIM with an AtomPro28 just for this feature.  It allows 
you to save variables and data in your program.  I use this for my 
sequencer application so I don't have to input all that data each time 
I power up.

5. P6 and P7 are not used in the PSIM and simply connect to J3.  

I use these pins to drive I2C devices so I'm not using it.  Thought 
someone else may want it for the additional inputs or the non-volatile 
storage for their PSIM.

Contact me off-group if interested.  I put an image in my photo album 
on this group.

Dave