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E2PRAM

article 2025/3/15 17:14:54

iic.c中添加的代码

void EEPROM_Write(unsigned char* EEPROM_String, unsigned char addr,unsigned char num)
{
	I2CStart();
	I2CSendByte(0xa0);
	I2CWaitAck();
	
	I2CSendByte(addr);
	I2CWaitAck();
	
	while(num--)
	{
		I2CSendByte(*EEPROM_String++);
		I2CWaitAck();
		I2C_Delay(200);
	}
	I2CStop();
}

void EEPROM_Read(unsigned char* EEPROM_String, unsigned char addr,unsigned char num)
{
	I2CStart();
	I2CSendByte(0xa0);
	I2CWaitAck();
	
	I2CSendByte(addr);
	I2CWaitAck();
	
	I2CStart();
	I2CSendByte(0xa1);
	I2CWaitAck();
	
	while(num--)
	{
		*EEPROM_String++ = I2CReceiveByte();
		if(num) I2CSendAck(0);
		else I2CSendAck(1);
		
	}
	I2CStop();
	
}

main函数添加的内容

unsigned char dat[2] = {30,60};
unsigned char a = 200;
EEPROM_Write(dat,0,2);
EEPROM_Write(&a,0,1);

/* Main */
void main()
{
	EEPROM_Read(&a,0,1);
	System_Init();
	Timer0Init();
	while (1)
	{
		Key_Proc();
		Seg_Proc();
		Led_Proc();
	}
}

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