1.在sdk_config.h中加入宏 // GPIOTE_ENABLED - nrf_drv_gpiote - GPIOTE peripheral driver //========================================================== #ifndef GPIOTE_ENABLED #define GPIOTE_ENABLED 1 #endif // GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS - Number of lower power input pins #ifndef GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS #define GPIOTE_CONFIG_NUM_OF_LOW_POWER_EVENTS 4 #endif
// GPIOTE_CONFIG_IRQ_PRIORITY - Interrupt priority
// Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice // 0 (highest) // 1 // 2 // 3 // 4 // 5 // 6 // 7
#ifndef GPIOTE_CONFIG_IRQ_PRIORITY #define GPIOTE_CONFIG_IRQ_PRIORITY 7 #endif
2.导入nrfx_gpiote.c到工程中
3.GPIOTE INPUT事件函数
void pin_event_handler(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action){ printf("timer_dummy_handler\n"); } 4.初时化GPIOTE
nrf_drv_gpiote_in_config_t config = GPIOTE_CONFIG_IN_SENSE_HITOLO(true); // HIGH TO LOW config.pull = GPIO_PIN_CNF_PULL_Pullup; //pull up err_code = nrf_drv_gpiote_in_init(16, &config, pin_event_handler); nrf_drv_gpiote_in_event_enable(16, true); //true则使能执行pin_event_handler函数
