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Visitor II
February 1, 2024
Question

The stm32 is not supplied with current.

  • February 1, 2024
  • 1 reply
  • 1170 views

Hi, I designed stm32f413RGT6. But when I supplied 5V as a power supply, I only get 0.00~0.01A.
When I measure with a multimeter, the chip has a voltage of 3.3V.
I think it's a problem caused by not connecting VCAP1, so I connected 4.7uF to VCAP1 with GND, but the problem is the same.
Can you help me?

    This topic has been closed for replies.

    1 reply

    Graduate II
    February 1, 2024

    Check you see 1.25V at VCAP pin

    Check part orientation 

    Check level on NRST

    Visitor II
    February 1, 2024

    On the nrst pin, when you open the switch, when you close the 3.3V switch, 0V comes out normally.
    Also, there is no problem with the direction of the parts.
    1.13V is measured in VCAP1, is there a problem with this?