Interrupt Function Processing Procedures; Example Of The Interrupt Function Processing Procedures - Espressif ESP8266 Technical Reference

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ETS_GPIO_INTR_ENABLE();

2.3.4. Interrupt Function Processing Procedures

1. Clear the interrupt.
Uint16 gpio_status=0;
gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, gpio_status);
For instructions on GPIO_STATUS and GPIO_STATUS_W1TC, refer to Section 2.2
Instruction on GPIO Registers.
2. check which IO triggered the interrupt (when multiple IOs are configured to be in
interrupt mode)
If(gpio_status==GPIO_Pin_12)
3. If it is double-edge triggered interrupt, check whether this interrupt is triggered by
rising or falling edge.
if(!GPIO_INPUT_GET(GPIO_ID_PIN(12))) //if this MTDI interrupt is
triggered by falling edge.

2.3.5. Example of The Interrupt Function Processing Procedures

Espressif 12 86 ! /!
2. GPIO
2016.05