Nucleo-32 board with 3.3 V and External St-Link

Can I operate Nucleo-32 board with 3.3 V input voltage and disconnect on-board ST-link and connect external St-link?

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Best answer by Tesla DeLorean

I'd suggest you review the schematic. Watch for SWDIO, SWCLK, NRST, SWO, MCO/HSE_IN

Graduate II

I'd expect so, the external ST-LINK would need VTarget powered to drive it's buffers

Visitor II

Thanks for prompt reply.

UM1956 clearly mentions to use 3.3 V SB14 and SB9 should be open. But How do i disconnect on-board St-link?

Graduate II

I'd suggest you review the schematic. Watch for SWDIO, SWCLK, NRST, SWO, MCO/HSE_IN

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