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# 1   2011-08-01 12:56:52 STM32F100RB GPIO pin sharing w/ alternate fuctions (SPI2 & TIM15)

cowboy_film_fan
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Registered: 2011-08-01
Posts: 1

STM32F100RB GPIO pin sharing w/ alternate fuctions (SPI2 & TIM15)

I can map TIM15_CH1N on pin PB15 as an output ,that works,but as soon as I start using SPI2 this pin seems like the pin is suddenly assigned to the SPI.
Now I will use the SPI2 as a slave ,so the MOSI function is an input (wich I will discard),so I see no reason why I cannot use this pin as an output for TIM15_CH1N.

I want to use SPI2 as slave ,transmit only and I want PB15 to be assigned to TIM15_CH1N
is there any way to do this?

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