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Graduate II
March 4, 2024
Question

Loading Large Quantity of STM32 Chips Simultaneously

  • March 4, 2024
  • 5 replies
  • 2959 views

I'm working on a project that requires programming a large quantity of STM32 chips with the same code base. The chip is STM32L476RETx. While researching, I came across options like the STLINK-V3MODS and ST-LINK/V2, but they seem to support programming only one controller at a time.

Could anyone suggest alternative methods or tools that would allow me to program multiple STM32 chips simultaneously? I'm looking for efficient ways to streamline the programming process for a large batch of chips. Any insights or recommendations would be greatly appreciated. Thank you!

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5 replies

Chris21
Associate II
March 4, 2024
AScha.3
Super User
March 4, 2024
"If you feel a post has answered your question, please click ""Accept as Solution""."
STTwo-32
Technical Moderator
March 4, 2024

Hello @Kittywapus 

If you are looking for an industrial programming solution for more than one MCU on the same time. I suggest you to contact our local sales office. It may suggest you a few solutions.

Best Regards.

STTwo-32 

Tesla DeLorean
Guru
March 4, 2024

Boards or chips?

It is possible to use other STM32 parts to program via the AN3155 UART Protocol, AN2606 Boot Loader

Use NRESET, BOOT0 and a UART RX/TX.

You could make fixtures that scale, with RED/GREEN LEDs to indication completion or failure, and buttons to start.

You could perhaps make gang programmers that route SWD signals to successive devices.

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Andrew Neil
Super User
March 5, 2024

@Kittywapus wrote:

Could anyone suggest alternative methods or tools that would allow me to program multiple STM32 chips simultaneously? 


The key word is "Gang" programming.

As others have noted, there are companies which offer this as a service.

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
Tesla DeLorean
Guru
March 5, 2024

Some distributors provide chip programming as a value-added solution. Although I'm not sure if PCBA are as keen holding onto pre-programmed stock as it complicates inventory.

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