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External MCU programming STM32

Question asked by Bruno Sena on Dec 21, 2017
Latest reply on Dec 22, 2017 by Bruno Sena

I've an Nucleo-f091rc, and i need using this board to programming an external STM32F070, using SWDIO, I've connected SWDIO, SWDCLK, NRST and GND. My external MCU have external 3.3V. When I try to connect I receive the mesage No target connected.