SmartPDCode/truing_control/STS_FreeRTOS/HARDWARE/At24xx/At24xx.c

/*********************************************************************************************************
* Module   : At24xx.c
* Abstract : 
* Version  : 1.0.0
* Author   : Leopul(COPYRIGHT 2025 - 2027 Leopul. All rights reserved.)
* Complete : 2025-02-28
* Content  : None
* Note     : None
*********************************************************************************************************/

#include "At24xx.h"
#include "SysTick.h"
#include "I2c.h"
#include "gd32f30x_libopt.h"
#include "stdint.h"
#include "main.h"



#define CHECK_ADDR   8000

#define AT24C01    127           
#define AT24C02    255
#define AT24C04    511
#define AT24C08    1023
#define AT24C16    2047
#define AT24C32    4095
#define AT24C64    8191
#define AT24C128   16383
#define AT24C256   32767 
#define USER_DEFINE_EEPROM_TYPE    AT24C64

 
static void read_iic_data(void);
void at24xx_init(void)
{
	InitI2C(); 
	sts_data_t *data = get_sts();
//data->read_eeprom = read_iic_data;
//	data->write_at24 = at24xx_write;
//	data->read_at24 = at24xx_read;
}
uint8_t at24xx_check(void)
{
	uint8_t temp = 0;
	temp = at24xx_read_one_byte(CHECK_ADDR);
	if(temp == 0x55)
	{
		return 0;
	}else
	{
		at24xx_write_one_byte(CHECK_ADDR,0x55);
		temp = at24xx_read_one_byte(CHECK_ADDR);
		if(temp == 0x55)
		{
			return 0;
		}
	}
	return 1;
}
void at24xx_read(unsigned short read_addr, unsigned char *buff,unsigned short read_num)
{
	while(read_num)
	{
		*buff = at24xx_read_one_byte(read_addr);
		read_addr++;
		buff++;
		read_num --;
	}
}

void at24xx_write(unsigned short write_addr, unsigned char *buff,unsigned short write_num)
{
	while(write_num)
	{
		at24xx_write_one_byte(write_addr,*buff);
		write_addr++;
		buff++;
		write_num --;
	}
}

unsigned char at24xx_read_one_byte(unsigned short read_addr)
{
	uint8_t temp = 0;
	GenI2CStartSig();
	if(USER_DEFINE_EEPROM_TYPE > AT24C16)
	{
		I2CSendByte(0XA0);
		I2CWaitAck();
		I2CSendByte(read_addr >> 8);
	}else
	{
		I2CSendByte(0XA0 + ((read_addr / 256) << 1)); 
	}
	I2CWaitAck();
	I2CSendByte(read_addr % 256); 
	I2CWaitAck(); 
	
	GenI2CStartSig(); 
	I2CSendByte(0XA1);
	I2CWaitAck();
	
	temp = I2CReadByte(0);
	
	GenI2CStopSig();
	
	return temp;
}

void at24xx_write_one_byte(unsigned short write_addr,unsigned char data)
{                                                      
  GenI2CStartSig();                             

  if(USER_DEFINE_EEPROM_TYPE > AT24C16)
  {
    I2CSendByte(0XA0);                         
    I2CWaitAck();
    I2CSendByte(write_addr >> 8);               
  }
  else
  {  
    I2CSendByte(0XA0 + ((write_addr / 256) << 1)); 
  }
  
  I2CWaitAck();                                 
              
  I2CSendByte(write_addr % 256);                 
  I2CWaitAck();                                 
                                              
  I2CSendByte(data);                                   
  I2CWaitAck();                                 
                            
  GenI2CStopSig();     
	
  DelayNms(10);                                                                              
}