原理学习
自己看一下江科大的存储器的读取，原理是一样的。只是使用了IIC原理是不变的
代码
cubeMX的配置
代码
eeprom层代码的书写
#include "eeprom_display.h"
uint8_t data;
uint8_t eeprom_read(uint8_t addr){I2CStart();I2CSendByte(0xa0);I2CWaitAck();I2CSendByte(addr);I2CWaitAck();I2CStop();I2CStart();I2CSendByte(0xa1);I2CWaitAck();data=I2CReceiveByte();I2CSendNotAck();I2CStop();return data;}
void eeprom_write(uint8_t addr,uint8_t dat){I2CStart();I2CSendByte(0xa0);I2CWaitAck();I2CSendByte(addr);I2CWaitAck();I2CSendByte(dat);I2CWaitAck();I2CStop();HAL_Delay(20);}main.c
LCD_Init();I2CInit();LCD_SetBackColor(Black);LCD_SetTextColor(White);LCD_Clear(Black);char buff[20];uint8_t num_cin=1;uint8_t num_cout=0;RTC_TimeTypeDef sTime = {0};RTC_DateTypeDef sDate = {0};char date_time[100];while (1){HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);sprintf(date_time, " test ");LCD_DisplayStringLine(Line0, (uint8_t *)date_time);sprintf(date_time,"Date %d-%d-%d-%d",sDate.Year,sDate.Month,sDate.WeekDay,sDate.Date);LCD_DisplayStringLine(Line2,(uint8_t *)date_time);sprintf(date_time,"Time %2d-%2d-%2d",sTime.Hours,sTime.Minutes,sTime.Seconds);LCD_DisplayStringLine(Line3,(uint8_t *)date_time);sprintf(date_time,"Alarm %d",count_alarm);LCD_DisplayStringLine(Line4,(uint8_t *)date_time);
// eeprom_write(0,num_cin);
// sprintf(buff,"cin number %d",num_cin);
// LCD_DisplayStringLine(Line2,(uint8_t *)buff);
// num_cout=eeprom_read(0);
// sprintf(buff,"cout number %d",num_cout);
// LCD_DisplayStringLine(Line3,(uint8_t *)buff);
// num_cin++;
// HAL_Delay(1000);//HAL_PWREx_DisableUSBDeadBatteryPD();/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}
