Using User Button on stm32f3 discovery

[mehdi23]

Posted on July 08, 2013 at 17:21

Hello

I'm new to stm32 and I'm now working on the stm32f3 discovery board with a 7-segment display.

I want to use the User Button to make the digit on the display increment whenever the button is pressed. But I couldn't figure out how to configure it. 

So I would appreciate if someone could help me with that.

thank you 

#display #external-interrupts-button #stm32f3 #gpio

[Tesla DeLorean]

Posted on July 08, 2013 at 17:53

It's connected to GPIO PA0, configure that as an input or use the FW library, check STM_EVAL_PBInit() and STM_EVAL_PBGetState()

STM32F3-Discovery_FW_V1.1.0\Project\Peripheral_Examples\PWR_CurrentConsumption\main.c

Check also STM32F3-Discovery_FW_V1.1.0\Project\Peripheral_Examples\EXTI_Example which uses the button to generate an interrupt.

[mehdi23]

Posted on July 09, 2013 at 16:28

Thank you for the response

I tried to follow the example on the Demonstration project on the stm32f3 but I couldn't figure out how even when using the STM_EVAL_PBInit but I missed something for sure.

I'll check out the examples and try to make it work. 

Have a nice day