My system is a BQ25570 powering a MSP430 at 2.6V. The MSP430 is on the regulated VOUT net of the BQ25570 (on the buck step-down). Storage is a supercap on VBAT, charged to max of Vbat_ov of 5.4V.
I want to program (burn) the MSP430 using a debugger probe at 3.3V. Can I connect the debugger probe to the VOUT net and back power the buck converter, without harm?
I suppose I can choose a VOUT regulation voltage of 3.3V instead, would that work?
I suppose I can use a jumper to isolate the MSP430 while programming it.