zoukankan      html  css  js  c++  java
  • Arduino 看门狗使用

    1.需要调用

    #include <avr/wdt.h>

    2.设置看门狗复位时间

    wdt_enable(WDTO_2S);

    代码时间定义的底层查看

    #define WDTO_15MS 0
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_30MS 1
    
    /** ingroup avr_watchdog See
    c WDT0_15MS */
    #define WDTO_60MS 2
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_120MS 3
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_250MS 4
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_500MS 5
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_1S 6
    
    /** ingroup avr_watchdog
    See c WDT0_15MS */
    #define WDTO_2S 7
    
     
    
    if defined(__DOXYGEN__) || defined(WDP3)
    
    /** ingroup avr_watchdog
    See c WDT0_15MS
    Note: This is only available on the 
    ATtiny2313, 
    ATtiny24, ATtiny44, ATtiny84, ATtiny84A,
    ATtiny25, ATtiny45, ATtiny85, 
    ATtiny261, ATtiny461, ATtiny861, 
    ATmega48, ATmega88, ATmega168,
    ATmega48P, ATmega88P, ATmega168P, ATmega328P,
    ATmega164P, ATmega324P, ATmega644P, ATmega644,
    ATmega640, ATmega1280, ATmega1281, ATmega2560, ATmega2561,
    ATmega8HVA, ATmega16HVA, ATmega32HVB,
    ATmega406, ATmega1284P,
    ATmega256RFR2, ATmega128RFR2, ATmega64RFR2,
    ATmega2564RFR2, ATmega1284RFR2, ATmega644RFR2,
    AT90PWM1, AT90PWM2, AT90PWM2B, AT90PWM3, AT90PWM3B, AT90PWM216, AT90PWM316,
    AT90PWM81, AT90PWM161,
    AT90USB82, AT90USB162,
    AT90USB646, AT90USB647, AT90USB1286, AT90USB1287,
    ATtiny48, ATtiny88.
    */
    #define WDTO_4S 8
    
    /** ingroup avr_watchdog
    See c WDT0_15MS
    Note: This is only available on the 
    ATtiny2313, 
    ATtiny24, ATtiny44, ATtiny84, ATtiny84A,
    ATtiny25, ATtiny45, ATtiny85, 
    ATtiny261, ATtiny461, ATtiny861, 
    ATmega48, ATmega48A, ATmega48PA, ATmega88, ATmega168,
    ATmega48P, ATmega88P, ATmega168P, ATmega328P,
    ATmega164P, ATmega324P, ATmega644P, ATmega644,
    ATmega640, ATmega1280, ATmega1281, ATmega2560, ATmega2561,
    ATmega8HVA, ATmega16HVA, ATmega32HVB,
    ATmega406, ATmega1284P,
    ATmega256RFR2, ATmega128RFR2, ATmega64RFR2,
    ATmega2564RFR2, ATmega1284RFR2, ATmega644RFR2,
    AT90PWM1, AT90PWM2, AT90PWM2B, AT90PWM3, AT90PWM3B, AT90PWM216, AT90PWM316,
    AT90PWM81, AT90PWM161,
    AT90USB82, AT90USB162,
    AT90USB646, AT90USB647, AT90USB1286, AT90USB1287,
    ATtiny48, ATtiny88,
    ATxmega16a4u, ATxmega32a4u,
    ATxmega16c4, ATxmega32c4,
    ATxmega128c3, ATxmega192c3, ATxmega256c3.
    */
    #define WDTO_8S 9

    3.喂狗操作

    wdt_reset();

    4.关闭看门狗

    wdt_disable();

     测试代码:

    #include <avr/wdt.h>
    
    int test = 0;
    void setup() {
      Serial.begin(9600);
      Serial.println("in setup");
      Serial.print("test=");
      Serial.println(test);
      delay(1000);
      wdt_enable(WDTO_2S);
    }
    
    void loop() { 
      int testLoop;
      test++;
    //  wdt_reset();
      Serial.println("in loop");
      Serial.print("test=");
      Serial.println(test);
      delay(1000);
      Serial.print("testLoop=");
      Serial.println(testLoop++);
      
    }

  • 相关阅读:
    MapReduce原理
    用redis构建分布式锁
    Python中类的特殊变量
    Python之元类
    python之WSGI与Guincorn
    一种消息和任务队列——beanstalkd
    LRU 算法
    extern、static、restrict、volatile 关键字
    bigtable原理
    Go的微服务库kite
  • 原文地址:https://www.cnblogs.com/Mysterious/p/4817054.html
Copyright © 2011-2022 走看看