STM32F103

slcklnx · 07-21-2021, 04:42 PM

Hi my friends ) I have a stm32f103 microcontroller. I need to make a remap PA7 to use TIM1_CH1 instead of TIM3_CH2. what should I turn on and what should I turn off for this ? can you write how to do this?

rtmistler · 07-21-2021, 05:52 PM

Quote:

Originally Posted by slcklnx

I need to make a remap PA7 to use TIM1_CH1 instead of TIM3_CH2. what should I turn on and what should I turn off for this ? can you write how to do this?

It depends which dev environment you've chosen to work with. PIN mapping options are fairly easy, or easy enough to get help on from the various dev environments available.

slcklnx · 07-21-2021, 06:44 PM

Quote:

Originally Posted by rtmistler

It depends which dev environment you've chosen to work with. PIN mapping options are fairly easy, or easy enough to get help on from the various dev environments available.

I want to do it "by hand" without IDE

which register bits AFIO_MAPR
to be used?
Help me to understand

rtmistler · 07-21-2021, 07:35 PM

Quote:

Originally Posted by slcklnx

I want to do it "by hand" without IDE

which register bits AFIO_MAPR
to be used?
Help me to understand

Yes that's the correct register. Bit settings are defined in the reference manual. See also section 9.3.7 in the reference manual, it describes exactly what bits and values to use to remap, but I do not believe the exact remapping you want is available. Recommend reading the reference manual to ensure my interpretation is not flawed.