STM32G071RB download pin?

[CByou.1]

I am using STM32G071RB. It is fine to connect only swdio, swclk, and gnd for program download. Is it necessary to connect the reset line?

[waclawek.jan]

NRST in programming comes handy if you by any mistake - or deliberately, to use those pins as GPIO - in your program overwrite the GPIO_MODER and GPIO_AFR values for the debug pins (SWDIO and SWCLK).

You still can pull down NRST manually, too, in those cases.

JW