ESK32-360开发板的RTC计时器

ID:776997 · 发表于 2020-8-3 09:40

本帖最后由 jinglixixi 于 2020-8-3 09:44 编辑

1. RTC基本使用

在例程中，提供了RTC的实验示例，在串口的配合下可以设置RTC的初始数值，并通过串口来输出RTC计时值，其运行效果如图1所示。

图1 串口设置和显示RTC计时值

2. RTC计时器

为了能直观地来显示RTC计时值，可通过TFT显示屏来实现，所用到的主要为数值显示函数。

改造后的计时显示函数为：

复制代码

主程序的内容为:

int main(void)
{
CKCU_PeripClockConfig_TypeDef CKCUClock = {{0}};
CKCUClock.Bit.BKP = 1;
CKCU_PeripClockConfig(CKCUClock, ENABLE);
if(PWRCU_CheckReadyAccessed() != PWRCU_OK)
{
while (1);
}
HT32F_DVB_LEDInit(HT_LED1);
RETARGET_Configuration();
NVIC_EnableIRQ(RTC_IRQn);
if(PWRCU_GetFlagStatus() == PWRCU_FLAG_BAKPOR)
{
LCD_StringLineDisplay(Line5," Power On Reset occurred!");
}
LCD_Init();
LCD_Config();
LCD_BackColorSet(Black);
LCD_TextColorSet(Red);
LCD_StringLineDisplay(Line3," LCD_RTC TEST");
LCD_TextColorSet(Yellow);
if(PWRCU_ReadBackupRegister((PWRCU_BAKREG_Enum) PWRCU_BAKREG_0_RTC_KEY) !=0xAA55A5A5)
{
LCD_StringLineDisplay(Line5, "RTC not yet configured!");
LCD_StringLineDisplay(Line6, " - - ");
LCD_StringLineDisplay(Line7," : : ");
RTC_Configuration();
#if 1
AP_Time_Init(&DateTime);
#else
DateTime.year = 2020;
DateTime.month = 7;
DateTime.day = 25;
DateTime.hour = 22;
DateTime.minute = 5;
DateTime.second = 0;
#endif
if (!AP_Time_Adjust(&DateTime))
{
LCD_StringLineDisplay(Line5, "Adjusttime error!");
while(1);
}
RTC_Cmd(ENABLE);
PWRCU_WriteBackupRegister((PWRCU_BAKREG_Enum)PWRCU_BAKREG_0_RTC_KEY, 0xAA55A5A5);
}
else
{
LCD_StringLineDisplay(Line5,"No need to configure RTC!");
}
LCD_TextColorSet(Yellow);
LCD_StringLineDisplay(Line5," ");
while(1)
{
if (CK_SECOND_Flag)
{
CK_SECOND_Flag = 0;
AP_Time_Show();
}
}
}