Finding an external SWPMI transceiver for STM32H7

sist · ‎2024-11-27

Hello,

I'm Searching for SWPMI external transceiver, I can not found any information about the device in st.com. I hope I will get your help, give me the device marking of SWPMI external transceiver. Thanks

Peter BENSCH · ‎2024-11-27

Welcome @sist, to the community!

SWPMI does not require an external transceiver, but is a master for accessing devices that are standardised according to ETSI TS 102 613, usually Smart Cards.

As SWPMI is a pure master, it cannot be used as a slave, i.e. it cannot be used to communicate with SWPMI of another STM32.

Does it answer your question?

Regards
/Peter

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SofLit · ‎2024-11-27

Hello @sist ,

According to this presentation: https://www.st.com/content/ccc/resource/training/technical/product_training/group0/ef/77/09/bb/c3/2b/48/59/STM32H7-Peripheral-Single_Wire_Protocol_Master_Interface_SWPMI/files/STM32H7-Peripheral-Single_Wire_Protocol_Master_Interface_SWPMI.pdf/_jcr_content/translations/en.STM32H7-Peripheral-Single_Wi...

the MCU embeds already SWPMI transceiver.

See also https://community.st.com/t5/stm32-mcus-products/the-puzzled-about-swpmi-of-stm32h7/td-p/714970

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sist · ‎2024-11-28

Thank you for your reply.

This module is new for me，and I know the MCU embeds already SWPMI transceiver. But I need an external transceiver for my project,even though you will think it's unnecessary. I'm dying to know the device marking of external transceiver.Thanks!

SofLit · ‎2024-11-28

As you are looking for an external transceiver (not related to STM32 product) this thread will be moved to "Others: hardware and software"

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Peter BENSCH · ‎2024-11-28

Please explain why you think you need an external transceiver.

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