DAC Drive Strength | Cypress Semiconductor
DAC Drive Strength
I'm developing the product program in parallel with the hardware designer. His programs are demo code that test basic functionality. We are using a VDAC8 to drive an LED. The voltage range is 0 - 4V. The demo program can drive a low with a load of 20K pull-up to +4.84V. With my product program, the lowest the output can go is +2V. Looking at the device configuration, they are identical. I've used PSoC Creator 2.0 and the latest 2.2, SP1, components all updated. His is 2.1.
My code does change states every 250mS but I have just tried setting the DAC to zero at start up to see if it made a difference.
That my code and his code have different device behaviors is a little unsettling in that we could be cruising along with everything working fine, then we go into production and get a batch of devices that work with his code but not mine. Other than setting our 2 computers side by side and checking every configuration and pin assignment, I'm not sure what to do.