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sgordon777
Associate III
January 7, 2025
Solved

STM32G070CB bootloader/DFU?

  • January 7, 2025
  • 2 replies
  • 1670 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

 

 

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-32
STTwo-32Best answer
ST 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

 

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sgordon777Author
Associate III
January 7, 2025

Thanks for the quick reply

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