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Kmax18
Senior II
October 17, 2020
Solved

I work on a timer application for a STM32F103 MCU. The goal is to time pulse signals. My question: what timer input channels are connected to what GPIO pins (PA.02, etc.)? I assume there is a table in some ST doc. Can you please point me to one? Than

  • October 17, 2020
  • 4 replies
  • 794 views

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Best answer by TDK

The datasheet has this info:

https://www.st.com/resource/en/datasheet/stm32f103c8.pdf

You can also bring up the chip in STM32CubeMX and look at the functions for each pin. Sometimes this is more convenient.

4 replies

TDK
TDKBest answer
October 17, 2020

The datasheet has this info:

https://www.st.com/resource/en/datasheet/stm32f103c8.pdf

You can also bring up the chip in STM32CubeMX and look at the functions for each pin. Sometimes this is more convenient.

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Kmax18
Kmax18Author
Senior II
October 18, 2020

Thank you, @TDK​ ! I found it and am using the table. RPK created a nice graphical representation of all pin functions (reblag.dk/stm32). Enjoy.

waclawek.jan
Super User
October 18, 2020

Nice, and also incorrect in details, e.g. there are no TIM2_CHxN channels, some functions on the left hand side noted as alternative even if they are native, and MHz is written incorrectly.

JW

Kmax18
Kmax18Author
Senior II
October 18, 2020

Hi @Community member​, noted. Thank you for the letting the community know.