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fzh_ai_sidekick
Visitor II
June 24, 2020
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STLINK-V3SET, No voltage on VCC pin?

  • June 24, 2020
  • 1 reply
  • 1645 views

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?

    This topic has been closed for replies.
    Best answer by Andreas Bolsch

    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.

    1 reply

    A
    Andreas BolschAnswer
    Explorer II
    June 24, 2020

    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.

    A
    Anonymous
    June 24, 2020

    Oh!~

    Thank you Andreas,

    I have see the description.

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