ds3231_stc8h3k.c File Reference

#include "fw_hal.h"
#include "ds3231.h"

Go to the source code of this file.

Functions
void	I2C_Init (void)
void	GPIO_Init (void)
int	main (void)

Variables
__XDATA uint8_t	time [9]

Function Documentation

GPIO_Init()

void GPIO_Init

(

void

)

Definition at line 44 of file ds3231_stc8h3k.c.

{
    // SDA
    GPIO_P3_SetMode(GPIO_Pin_3, GPIO_Mode_InOut_QBD);
    // SCL
    GPIO_P3_SetMode(GPIO_Pin_2, GPIO_Mode_Output_PP);
}

I2C_Init()

void I2C_Init

(

void

)

I2C clock = FOSC / 2 / (prescaler * 2 + 4)

Definition at line 30 of file ds3231_stc8h3k.c.

{
    // Master mode
    I2C_SetWorkMode(I2C_WorkMode_Master);
    I2C_SetClockPrescaler(0x3F);
    // Switch alternative port
    I2C_SetPort(I2C_AlterPort_P32_P33);
    // Start I2C
    I2C_SetEnabled(HAL_State_ON);
}

main()

int main

(

void

)

Definition at line 52 of file ds3231_stc8h3k.c.

{
    SYS_SetClock();
    // UART1 configuration: baud 115200 with Timer2, 1T mode, no interrupt
    UART1_Config8bitUart(UART1_BaudSource_Timer2, HAL_State_ON, 115200);
 
    GPIO_Init();
    I2C_Init();
    time[0] = DS3231_GetStatus();
    UART1_TxString("Status:");
    UART1_TxHex(time[0]);
    UART1_TxString("\r\n");
    // Set time
    time[7] = DS3231_FORMAT_24H;
    time[0] = 2022 - 1990; // year
    time[1] = 7; // month
    time[2] = 7; // week day
    time[3] = 10; // date
    time[4] = 14; // hour
    time[5] = 21; // minute
    time[6] = 10; // second
    DS3231_SetTime(time);
 
    while(1)
    {
        DS3231_GetTime(time);
        UART1_TxHex(time[0]);
        UART1_TxChar('-');
        UART1_TxHex(time[1]);
        UART1_TxChar('-');
        UART1_TxHex(time[3]);
        UART1_TxChar(' ');
        UART1_TxHex(time[4]);
        UART1_TxChar(':');
        UART1_TxHex(time[5]);
        UART1_TxChar(':');
        UART1_TxHex(time[6]);
        UART1_TxChar(' ');
        UART1_TxHex(time[7]);
        UART1_TxChar(' ');
        UART1_TxHex(time[8]);
        UART1_TxString("\r\n");
        SYS_Delay(1000);
    }
}

Variable Documentation

time

__XDATA uint8_t time[9]

Definition at line 28 of file ds3231_stc8h3k.c.