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reedomneck
Associate III
April 10, 2026
Question

Firmware update stm32u535

  • April 10, 2026
  • 1 reply
  • 109 views

Hi All,

I've this requirement, can someone suggest how do I proceed.

I'm using stm32u535 and over usart it's connected to Silicon labs chip. Silicon labs chip has Wi-Fi and I want to update firmware of STM32U535. This silicon labs chip is connected to cloud over Wi-Fi.

 

1 reply

Andrew Neil
Super User
April 10, 2026

So you'll need to use a UART bootloader - either a custom one, or the System Bootloader (in ROM).

 

The STM32 neither knows nor cares what is on the other end of the link, so see:

How can I use an ESP32 to update the firmware of an STM32 from any family

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#FirmwareUpdate #IAP

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