Yes, I am waiting for the NXP LPC900 FAE to reply.

In the mean time I have tested the assumption that:

"The SFRs can be programmed so that DAC1 out internally connects to the +in:Comparator1".

..... Yes. It works.

Using these setting DAC1 can be "compared" to the internal Vref=1.23v.... Hence some internal self calibration can be done.


I would be nice for NXP to confirm and document this feature.

Joe