Tool/software:
MSP430 datasheet said, Connect recommended resistor between ROSC and AVSS for DCO operation in external resistor mode. Connect ROSC to AVSS while operating DCO in internal resistor mode.
Now I am using internal resistor mode, so I connect ROSC to AVSS via 0R resistor to be in line with this recommendation.
But I found another word in the datasheet, Do not apply external DC loading or voltage at ROSC.
Because in my design, AVSS is connceted to -2.5V to allow the measurement range from -2.5v to 2.5v. in this case, ROSC is applied a -2.5V on itself.
is it wrong?
on my board, I found the -2.5V power current is higher than my expecatation. is it because of this connection?
