[Shanghai Hangxin ACM32F070 development board + touch function evaluation board evaluation] + RTC electronic clock

jinglixixi

[Shanghai Hangxin ACM32F070 development board + touch function evaluation board evaluation] + RTC electronic clock [Copy link]

 

ACM32F070 is equipped with an RTC timer. If a segment LCD screen is used to display the time, the time content will be incomplete. Therefore, the OLED screen introduced above can be used to complete the display work. The display effect is shown in Figure 1 and Figure 2.

Figure 1 Display effect

Figure 2 Display effect

The function to set and display the RTC time is:

void RTC_Test(void)
{
 uint32_t fu32_Seconds;
 RTC_ConfigTypeDef RTC_Handle;
 RTC_TimeTypeDef gstr_Time_Set;
 RTC_TimeTypeDef gstr_Time_Get;
 RTC_TimeTypeDef gstr_Time_Get_Again;
 RTC_DateTypeDef gstr_Date_Set;
 RTC_DateTypeDef gstr_Date_Get;
 RTC_Handle.u32_ClockSource = RTC_CLOCK_XTL;
 RTC_Handle.u32_Compensation = COMPENSATION_INCREASE;
 RTC_Handle.u32_CompensationValue = 0x05;
 HAL_RTC_Config(&RTC_Handle);
 gstr_Time_Set.u8_Hours = 0x12;
 gstr_Time_Set.u8_Minutes = 0x30;
 gstr_Time_Set.u8_Seconds = 0x00;
 HAL_RTC_SetTime(&gstr_Time_Set);
 gstr_Date_Set.u8_Year = 0x22;
 gstr_Date_Set.u8_Month = RTC_MONTH_ OCTOBER;
 gstr_Date_Set.u8_Date = 0x10;
 gstr_Date_Set.u8_WeekDay = RTC_WEEKDAY_ MONDAY;
 HAL_RTC_SetDate(&gstr_Date_Set);
 while (1)
 {
 HAL_RTC_GetTime(&gstr_Time_Get);
 HAL_RTC_GetDate(&gstr_Date_Get);
 HAL_RTC_GetTime(&gstr_Time_Get_Again);
 if (gstr_Time_Get.u8_Seconds != gstr_Time_Get_Again.u8_Seconds)
 {
 continue;
 }
 if (fu32_Seconds != gstr_Time_Get.u8_Seconds)
 {
 fu32_Seconds = gstr_Time_Get.u8_Seconds;
          OLED_ShowNum(0,5,gstr_Time_Get.u8_Hours,2,16);                 
                    OLED_ShowNum(24,5,gstr_Time_Get.u8_Minutes,2,16);
          OLED_ShowNum(48,5,gstr_Time_Get.u8_Seconds,2,16);
 }
 }
}

Since the read RTC time value is output in hexadecimal, a corresponding value implementation function needs to be configured, the content of which is as follows:

void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size2)
{
 uint8_t t,temp;
 uint8_t enshow=0;
 for(t=0;t<len;t++)
 {
 temp=(num/oled_pow(16,len-t-1))%16;
 if(enshow==0&&t<(len-1))
 {
 if(temp==0)
 {
 OLED_ShowChar(x+(size2/2)*t,y,' ',size2);
 continue;
 }
 else enshow=1;
 }
 OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);
 }
}

On this basis, the main program to achieve the graphic effect is:

int main(void)
{
 System_Init();
 GPIO_Test();
app_OLED_Init();
 OLED_Init();
 OLED_Clear();
 OLED_ShowString(0,0,"ACM32F070",16);
 OLED_ShowString(0,2,"OLED & RTC",16);
OLED_ShowString(0,5," : :",16);
RTC_Test();
 while (1);
}

freebsder

Thanks for sharing! Looking forward to the follow-up!

jinglixixi

freebsder posted on 2022-10-19 15:13 Thank you for sharing! Looking forward to the follow-up!

Thanks for your support!!!

lugl4313820

Every post of the teacher is a must-read, neat and typical teaching post!

jinglixixi

lugl4313820 posted on 2022-10-20 07:08 Every post of the teacher must be read, neat, typical teaching post!

Thanks for your support!!!

lugl4313820

jinglixixi posted on 2022-10-20 09:10 Thank you for your support! ! !

A must!