Arduino 上手教程
2. 设备开发 & 案例程序
3. M5Unified
5. 拓展模块 & 案例
Atom DTU
Hat
Core2 RTC 实时时钟
类名: Rtc
begin()
功能说明:
初始化RTC时钟
函数原型:
void begin(void)
注意:
1.如果您不想使用M5.begin() 初始化RTC时钟,请在使用RTC之前调用此功能
1.如果您不想使用M5.begin() 初始化RTC时钟,请在使用RTC之前调用此功能
案例程序:
cpp
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#include <M5Core2.h> void setup() { M5.Rtc.begin(); //初始化 RTC时钟} void loop() {}SetTime()
功能说明:
设置实时时钟时间
函数原型:
void SetTime(RTC_TimeTypeDef* RTC_TimeStruct)
案例程序:
cpp
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#include <M5Core2.h> RTC_TimeTypeDef TimeStruct;void setup() { M5.begin(); TimeStruct.Hours = 18; //设置实时时钟结构体的具体时刻 TimeStruct.Minutes = 56; TimeStruct.Seconds = 10; M5.Rtc.SetTime(&TimeStruct); //将设置的时间写入实时时钟}void loop(){}GetTime()
功能说明:
获取实时时钟时间
函数原型:
void GetTime(RTC_TimeTypeDef* RTC_TimeStruct)
案例程序:
cpp
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#include <M5Core2.h> RTC_TimeTypeDef TimeStruct;void setup() { M5.begin(); M5.Lcd.println("RTC Time TEST"); TimeStruct.Hours = 18; TimeStruct.Minutes = 56; TimeStruct.Seconds = 10; M5.Rtc.SetTime(&TimeStruct);} void loop() { M5.Rtc.GetTime(&TimeStruct); M5.Lcd.setCursor(0, 15); M5.Lcd.printf("Time: %02d : %02d : %02d/n",TimeStruct.Hours, TimeStruct.Minutes, TimeStruct.Seconds); delay(500);}SetData()
功能说明:
设置实时时钟日期
函数原型:
void SetData(RTC_TimeTypeDef* RTC_DateStruct)
案例程序:
cpp
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#include <M5Core2.h> RTC_DateTypeDef DateStruct;void setup() { M5.begin(); DateStruct.WeekDay = 3; DateStruct.Month = 3; DateStruct.Date = 22; DateStruct.Year = 2019; M5.Rtc.SetData(&DateStruct);}void loop(){}GetData()
功能说明:
获取实时时钟日期
函数原型:
void GetData(RTC_TimeTypeDef* RTC_DateStruct)
案例程序:
cpp
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#include <M5Core2.h> RTC_DateTypeDef DateStruct;void setup() { M5.begin(); M5.Lcd.println("RTC Date TEST"); DateStruct.WeekDay = 5; DateStruct.Month = 7; DateStruct.Date = 23; DateStruct.Year = 2021; M5.Rtc.SetDate(&DateStruct);} void loop() { M5.Rtc.GetDate(&DateStruct); //获取实时时钟的日期 M5.Lcd.setCursor(0, 15); M5.Lcd.printf("Data: %04d-%02d-%02d/n",DateStruct.Year, DateStruct.Month,DateStruct.Date); //将此刻实时时钟的日期在屏幕输出 M5.Lcd.printf("Week: %d/n",DateStruct.WeekDay); delay(500);}clearIRQ()
功能说明:
清除中断请求
函数原型:
void clearIRQ()
disableIRQ()
功能说明:
关闭中断请求
函数原型:
void disableIRQ()
SetAlarmIRQ()
功能说明:
设置中断时钟
函数原型:
int SetAlarmIRQ(int afterSeconds)
int SetAlarmIRQ( const RTC_TimeTypeDef &RTC_TimeStruct)
int SetAlarmIRQ( const RTC_DateTypeDef &RTC_DateStruct, const RTC_TimeTypeDef &RTC_TimeStruct)
案例程序:
cpp
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#include <M5Core2.h> RTC_TimeTypeDef TimeStruct;void setup() { M5.begin(); M5.Lcd.println("RTC SetAlarmIQR"); TimeStruct.Hours = 18; TimeStruct.Minutes = 56; TimeStruct.Seconds = 10; M5.Rtc.SetTime(&TimeStruct);} void loop() { M5.update(); M5.Rtc.GetTime(&TimeStruct); M5.Lcd.setCursor(0, 15); M5.Lcd.printf("Time: %02d : %02d : %02d/n",TimeStruct.Hours, TimeStruct.Minutes, TimeStruct.Seconds); if(M5.BtnA.wasPressed()){ M5.Lcd.println("M5Core2 Will Close, Restore After 5 seconds "); delay(2000); M5.Rtc.clearIRQ(); M5.Rtc.SetAlarmIRQ(5); delay(10); M5.Axp.PowerOff(); }}