How does it regulates Vout voltage and current limie, though the MCU and the PWREN signal? If so, what is the sample rate of that loop?
Also, anything special about the selected MCU (PIC16F1783) or can it be done with AVRs such as the ATMEGA328P?
(I am thinking of using this as the starting point for a similar power supply that is Arduino IDE compatible, no fixed 3.3 and 5V output, an SPI 1.3" OLED display, and a rotary encoder).
Edit: I see it now, the voltage regulation loop goes through digital pot. What about the current limit loop?