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Nguyen Bao
Nguyen Bao
Associate II
January 16, 2020
Solved

Flashing software via ST-LInk

  • January 16, 2020
  • 2 replies
  • 994 views

Dear all ,

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I know that this is the ridiculous questions with engineers here, but i still have to ask because i really don't know. Pease forgive for me if this type of questions were already answered in another topic.

I'm using STM32F100 to design the PCB, almost boards that i refer i saw Boot pins are connected to the jumper to select the boot mode. But i don't intend to flash the software via USART , USB..., i want to use ST-Link , because i'm able to debug the SW. Therefore, my question is that do i have pull up / down the Boot pins, or just keep it open as not using.

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Thank you in advance​!

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This topic has been closed for replies.
Best answer by Tesla DeLorean

You should pull BOOT0 down to ensure it runs your software from FLASH every time it starts, leaving it floating can be problematic if your supply has a slow rise time.

With BOOT0=LOW, BOOT1 is DON'T CARE

2 replies

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
January 16, 2020

You should pull BOOT0 down to ensure it runs your software from FLASH every time it starts, leaving it floating can be problematic if your supply has a slow rise time.

With BOOT0=LOW, BOOT1 is DON'T CARE

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Nguyen Bao
Nguyen BaoAuthor
Associate II
January 16, 2020

Wow, thank you very much.

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