Function:
Initialize the RTC clock.
Pay Attention:
1.If you do not want to initialize the RTC clock with M5.begin (), call this Function before using RTC.
Example:
#include <M5Core2.h>
void setup() {
M5.Rtc.begin(); //Initialize the RTC clock.
}
void loop() {
}
Function:
Set real-time clock time.
Syntax:
void SetTime(RTC_TimeTypeDef* RTC_TimeStruct)
Example:
#include <M5Core2.h>
RTC_TimeTypeDef TimeStruct;
void setup() {
M5.begin();
TimeStruct.Hours = 18; //Set the specific time of the real-time clock structure.
TimeStruct.Minutes = 56;
TimeStruct.Seconds = 10;
M5.Rtc.SetTime(&TimeStruct); //Writes the set time to the real-time clock.
}
void loop(){}
Function:
Get real-time clock time.
Syntax:
void GetTime(RTC_TimeTypeDef* RTC_TimeStruct)
Example:
#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);
}
Function:
Set real-time clock date.
Syntax:
void SetData(RTC_TimeTypeDef* RTC_DateStruct)
Example:
#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(){}
Function:
Get real-time clock date.
Syntax:
void GetData(RTC_TimeTypeDef* RTC_DateStruct)
Example:
#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); //Get the date of the real-time clock.
M5.Lcd.setCursor(0, 15);
M5.Lcd.printf("Data: %04d-%02d-%02d/n",DateStruct.Year, DateStruct.Month,DateStruct.Date); //Output the date of the current real-time clock on the screen.
M5.Lcd.printf("Week: %d/n",DateStruct.WeekDay);
delay(500);
}
Function:
Setting the interrupt clock
Syntax:
int SetAlarmIRQ(int afterSeconds)
int SetAlarmIRQ( const RTC_TimeTypeDef &RTC_TimeStruct)
int SetAlarmIRQ( const RTC_DateTypeDef &RTC_DateStruct, const RTC_TimeTypeDef &RTC_TimeStruct)
Example:
#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();
}
}
Function:
Clear interrupt request
Syntax:
void clearIRQ()
Function:
Turn off interrupt request
Syntax:
void disableIRQ()