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How to use the PORT event

hbjin over 9 years ago

HI ,all ! I have a question about PORT event function.

as the 4 channels of GPIOTE (channel0 to channel3 ) have been used for other usage.

i need to use a general IO to detect the falling edge signal, the signal is a 50Hz square wave.

How should i do ~~

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Quax64 over 9 years ago +1

You configure the pin for sensing, e.g. with nrf_gpio_cfg_sense_input(BUTTON_0, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_SENSE_LOW); The GPIO has an internal DETECT signal, one for all pins, which is…

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0 Charles Manning over 9 years ago

There is an example for this in: /opt/nordic/nrf51822/Board/nrf6310/pin_change_int_example/main.c
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0 hbjin over 9 years ago in reply to Charles Manning

I have to use the GPIOTE->PORT EVENT
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0 hbjin over 9 years ago in reply to Charles Manning

I have to use the GPIOTE->PORT EVENT
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