generating EXTI0 in STM32F207VC

pranathi1091 · ‎2012-09-27

Posted on September 27, 2012 at 16:20

Hello All,

I am using STM32F207VC for my college project.

I have my external probe temperature sensor connected to one of the internal channel of ADC.

All i want to do is generate an EXTI0 interrupt when external temperature sensor is connected to controller and it should start measuring from external temperature sensor.

Any help in this regard is appreciated.

Thanks

#stm32f207vc-exti0

Tesla DeLorean · ‎2012-09-27

Posted on September 27, 2012 at 17:18

Add some hardware to pulse or toggle the Px.0 pin in question when the probe is attached.

The connector could pull up/down one of the pins, or ground it.

1 VCC

2 DETECT

3 TEMP

4 GND

Use a pull-up on pin 2, and on the connector tie it to ground. You plug in connector Px.0 transitions from HIGH to GND.

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