Could STM32CubeProgrammer software with J-link or ST-link simulator support JTAG Chain to program several STM32 MCU on the one Chain

[JieShen_Jason]

Hi，

There are four STM32 MCU on my board. I want to use one JTAG chain to cascade them. So, 

Could STM32CubeProgrammer software with J-link or ST-link simulator support JTAG Chain to program several STM32 MCU on the one Chain?

Thanks in advance!

Best regards!

Jason

[JieShen_Jason]

Hi,

Any response is welcome!

Thanks in advance!

Best regards!

Jason

[TDK]

I don't think any ST tools support JTAG chaining.

It looks like Segger J-Link supports this if you want to use their tools instead:

Manual setup of JTAG chain - SEGGER Knowledge Base

UM08001 J-Link / J-Trace User Guide - SEGGER Knowledge Base

[JieShen_Jason]

Hi，

Thanks！

Which software could work with Segger J-Link to  program several STM32 MCU on the one Jtag  Chain, STM32CubeProgrammer or Keil uVision5?

Thanks in advance!

Best regards!

Jason

[Chris21]

Segger supplies software for their J-Link.

[Tesla DeLorean]

Debugger pane in Keil should permit you to observe devices in the JTAG chain and select which device you want to talk too.

I've not spent a lot of time with such systems, so I'd suggest you read the materials @TDK

pointed too, and perhaps bread-board an example so you're comfortable with the implementation details before committing to a PCB. Provide yourself options to break the chain so you don't build something you can't program and debug later..