如何在Arduino中设置中断优先级？

Question

我正在ESP8266上工作。我使用Arduino IDE直接通过FTDI进行编程。当同时发生GPIO和UART中断或者UART发送或接收到事件时发生GPIO事件时，我遇到了堆栈问题。是否有可能在Arduino上设置中断优先级？

Answer 1

Arduino中的Interrumpt具有无法更改的预定义优先级顺序。这里是：

1 Reset 
2 External Interrupt Request 0 (pin D2)   (INT0_vect) 
3 External Interrupt Request 1 (pin D3)   (INT1_vect) 
4 Pin Change Interrupt Request 0 (pins D8 to D13) (PCINT0_vect) 
5 Pin Change Interrupt Request 1 (pins A0 to A5) (PCINT1_vect) 
6 Pin Change Interrupt Request 2 (pins D0 to D7) (PCINT2_vect) 
7 Watchdog Time-out Interrupt      (WDT_vect) 
8 Timer/Counter2 Compare Match A     (TIMER2_COMPA_vect) 
9 Timer/Counter2 Compare Match B     (TIMER2_COMPB_vect) 
10 Timer/Counter2 Overflow       (TIMER2_OVF_vect) 
11 Timer/Counter1 Capture Event     (TIMER1_CAPT_vect) 
12 Timer/Counter1 Compare Match A     (TIMER1_COMPA_vect) 
13 Timer/Counter1 Compare Match B     (TIMER1_COMPB_vect) 
14 Timer/Counter1 Overflow       (TIMER1_OVF_vect) 
15 Timer/Counter0 Compare Match A     (TIMER0_COMPA_vect) 
16 Timer/Counter0 Compare Match B     (TIMER0_COMPB_vect) 
17 Timer/Counter0 Overflow       (TIMER0_OVF_vect) 
18 SPI Serial Transfer Complete     (SPI_STC_vect) 
19 USART Rx Complete        (USART_RX_vect) 
20 USART, Data Register Empty      (USART_UDRE_vect) 
21 USART, Tx Complete        (USART_TX_vect) 
22 ADC Conversion Complete       (ADC_vect) 
23 EEPROM Ready         (EE_READY_vect) 
24 Analog Comparator        (ANALOG_COMP_vect) 
25 2-wire Serial Interface (I2C)     (TWI_vect) 
26 Store Program Memory Ready      (SPM_READY_vect) 

如需更多信息，请参阅here。