STLINK-V3SET, No voltage on VCC pin?

yang2 · ‎2020-06-24

Hello all, I just bought a ST-LINK-V3 set.

Also, I have checked the signal on vcc pin, but there are no voltage on vcc.

Is it correct?

Andreas Bolsch · ‎2020-06-24

These are denoted by T_VCC, not VCC (on CN4 apparently a misprint), these pins are used to *detect* the target voltage and set the thresholds for the buffers inside the ST-Link. See footnotes below the respective table for the connector in question in UM2448.

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Andreas Bolsch · ‎2020-06-24

These are denoted by T_VCC, not VCC (on CN4 apparently a misprint), these pins are used to *detect* the target voltage and set the thresholds for the buffers inside the ST-Link. See footnotes below the respective table for the connector in question in UM2448.

yang2 · ‎2020-06-24

Oh!~

Thank you Andreas,

I have see the description.