Skip to main content
Kmax18
Senior II
Oct 17, 2020 9:59 PM UTC
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

..

This topic has been closed for replies.
TDK
TDKBest answer
Oct 17, 2020 10:27 PM UTC

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.

"If you feel a post has answered your question, please click ""Accept as Solution""."

4 replies

TDK
TDKBest answer
Oct 17, 2020 10:27 PM UTC

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.

"If you feel a post has answered your question, please click ""Accept as Solution""."
Kmax18
Kmax18Author
Senior II
Oct 18, 2020 3:01 AM UTC

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
Oct 18, 2020 3:04 PM UTC

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
Oct 18, 2020 9:29 PM UTC

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