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fm_it
fm_it
Associate
Dec 14, 2018 6:45 AM UTC
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Is it possible to use CAN and USB simultaneously on STM32F105?

The FAQ states that its not possible for STM32F1 but for newer STM32 families its possible. Please clarify.

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fm_it
fm_itBest answer
Associate
Dec 14, 2018 10:08 AM UTC

0690X000006CpbBQAS.png0690X000006CpbLQAS.png

As you can see, the Reference manual doesn't mention connectivity line MCUs but the FAQ says STM32F1 devices. STM32F105/107 are connectivity line MCUs. This creates a confusion.

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3 replies

Uwe Bonnes
Uwe Bonnes
Chief
Dec 14, 2018 10:03 AM UTC

Have a look in the datasheet and the reference manual. There is a single block of dedicated memory that only one can use.

fm_it
fm_itAuthorBest answer
Associate
Dec 14, 2018 10:08 AM UTC

0690X000006CpbBQAS.png0690X000006CpbLQAS.png

As you can see, the Reference manual doesn't mention connectivity line MCUs but the FAQ says STM32F1 devices. STM32F105/107 are connectivity line MCUs. This creates a confusion.

Amel NASRI
Amel NASRI
ST Technical Moderator
Dec 14, 2018 10:59 AM UTC

https://community.st.com/s/article/FAQ-Concurrent-use-of-USB-and-CAN-with-STM32F103

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