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用串口1打印出年與日時分秒。親測無誤，普通IO模擬I2C
單片機源程序如下:
- #include "led.h"
- #include "delay.h"
- #include "key.h"
- #include "sys.h"
- #include "lcd.h"
- #include "usart.h"
- #include "usmart.h"
- #include "24cxx.h"
- #include "myiic.h"
- #define SIZE sizeof(TEXT_Buffer)
- int main(void)
- {
- int second,minute,hour,week,day,month,year;
- delay_init(); //延時函數(shù)初始化
- NVIC_Configuration(); //設(shè)置NVIC中斷分組2:2位搶占優(yōu)先級，2位響應(yīng)優(yōu)先級
- uart_init(9600); //串口初始化為9600
- usmart_dev.init(72); //初始化USMART
- AT24CXX_Init(); //IIC初始化
- Write1307(0x00,0x00);
- Write1307(0x01,0x00);
- Write1307(0x02,0x00);
- Write1307(0x03,0x00);
- Write1307(0x04,0x0b);
- Write1307(0x05,0x09);
- Write1307(0x06,0x12);
- while(1)//檢測不到24c02
- {
- second=Read1307(0x00);
- minute=Read1307(0x01);
- hour=Read1307(0x02);
- week=Read1307(0x03);
- day=Read1307(0x04);
- month=Read1307(0x05);
- year=Read1307(0x06);
- printf("%d.%d.%d\n",year,month,day);
- printf("%d:%d:%d",hour,minute,second);
- delay_ms(1000);
- // printf("11111\n");
- }
- }
所有資料51hei提供下載:
ds1307.rar
(323.62 KB, 下載次數(shù): 333)
2018-9-12 04:35 上傳
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