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SKira.1
Associate
February 22, 2020
Solved

Stm32f042f6 tssop package , when i am powering ,microcontroller is not starting ,even if i use hard reset . its only starting when i connect ST link( SW Debug)

  • February 22, 2020
  • 2 replies
  • 1736 views

YStm32f042f6 tssop package , when i am powering, microcontroller is not starting ,even if i use hard reset . its only starting when i connect ST link( SW Debug)  mode.I am using external clock 8 mhz.

I have attached Circuit diagram !! i tried with couple of MC but still same problem..

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Best answer by KnarfB

PB8 is also the BOOT0 pin. You either want to add a pull-down here to ensure flash boot mode or override that feature by programming the USER option bytes in flash.

2 replies

KnarfB
KnarfBBest answer
Super User
February 23, 2020

PB8 is also the BOOT0 pin. You either want to add a pull-down here to ensure flash boot mode or override that feature by programming the USER option bytes in flash.

SKira.1
SKira.1Author
Associate
February 25, 2020

Thank you !! Now its working!!​