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Can't Supply MCU power usingSTLinkV2 Isol

Question asked by Bryan M on Jan 12, 2018
Latest reply on Jan 15, 2018 by Bryan M

I'm using an STM isolated programmer/debugger.

I'm using it in a serial wire debugger mode (SWD) and connected VDD, GND, SWDIO and SWCLK on my board but can't supply voltage from the programmer itself. The device must be turned on first. Does anyone know if I can supply my board with 3.3v?

I'm using:

Pin1 - VDD

Pin7 - SWDIO

Pin9 - SWCLK

Pin12- GND

Pin15 -nRST


I CAN program but only with external power supplied to board itself.

On the non-isolated programmer, I could jump pin 19 to 1 and get 3.3 v and program just fine through the programmer alone but using the isolated, I can't get 3.3V. I've even probed using a volt meter but can't find how to do it.