External Line IRQ

[User15194]

I use
.edge_detection = XMC_ERU_ETL_EDGE_DETECTION_BOTH.
for exertnal IRQ


This trigger my IRQ function

void ERU0_0_IRQHandler(void) {

if "falling edge" {

}
else {

}

}

Now i have to find out the direction in the IRQ Function, is this possible ?


Thanks,
Embedded

[jferreira]

Hi,

You will need to check the status of the pin XMC_GPIO_GetInput(). Of course this is assuming the pin remains stable after the edge until the ISR is processed.

Regards,
Jesus

[User15194]

Hi Jesus,

thank you for this tip, working fine


Regards,
Embedded