Interrupt on both edges and measure time between them

esam_me — Tue, 08 Sep 2020 20:21:17 GMT

I need to set an interrupt on pio0_6 for falling and rising edges and then measure time between them to achieve a long an a short press from a push button.

this is my current code which works only for one edge:

#include "gpio.h" #include "LPC11xx.h" int main(){ GPIOInit(); GPIOSetDir(PORT0, 6, 0);// interrupt button- input GPIOSetInterrupt(PORT0, 6, 0, 0, 1); //Set interrupt on pio0_6 GPIOIntEnable(PORT0, 6); }

for the IRQ handler in gpio.h:

void PIOINT0_IRQHandler(void) { uint32_t regVal; regVal = GPIOIntStatus( PORT0, 6);// measure pin if ( regVal ) { timerInt = 0; //reset inactivity timeout timer modeInt = 1; GPIOIntClear( PORT0, 6); } return; }

MCu is LPC1114

Re: Interrupt on both edges and measure time between them

Alice_Yang — Wed, 09 Sep 2020 07:07:25 GMT

Hello esam_me,

Please check how do you config this register: GPIO interrupt both edges sense register

Regards,

Alice

topic Re: Interrupt on both edges and measure time between them in LPC Microcontrollers

Interrupt on both edges and measure time between them

Re: Interrupt on both edges and measure time between them