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Visitor II
January 7, 2025
Solved

STM32G070CB bootloader/DFU?

  • January 7, 2025
  • 2 replies
  • 699 views

I am trying to figure out how to DFU a STM32G070CB, but finding the available documentation utterly useless..

 

According to this document : AN2606 "STM32 microcontroller system memory boot mode", my chip STM32G070 uses "Pattern 11":

#1. I know what the boot0 pin is (it's a pin on the chip). BUT what is "nboot0", What is "nboot1", What is "BOOT_LOCK", ??????????? These are described NOWHERE in in my 93 page STM32G datasheet, nowhere in the , or any other document I can find

#2: What are the four rows supposed to represent???

sgordon777_1-1736287354294.png

 

 

    This topic has been closed for replies.
    Best answer by STTwo-32

    Hello @sgordon777 

    nboot0", "nboot1",.. are option bits that are used for boot configuration.  "BOOT_LOCK" is not available for your MCU. as mentionned on the AN2606. The pattern 11 represent the bootloader activation patterns.

    more démetails about that are available on the RM0454 specialy the chapter 2.5.

    Best Regards.

    STTwo-32

     

    2 replies

    STTwo-32Answer
    Technical Moderator
    January 7, 2025

    Hello @sgordon777 

    nboot0", "nboot1",.. are option bits that are used for boot configuration.  "BOOT_LOCK" is not available for your MCU. as mentionned on the AN2606. The pattern 11 represent the bootloader activation patterns.

    more démetails about that are available on the RM0454 specialy the chapter 2.5.

    Best Regards.

    STTwo-32

     

    Visitor II
    January 7, 2025

    Thanks for the quick reply