BQ27421-G1: 芯片的应用问题

电量计代码和日志.txt

unsigned int battery_ModifyDesignCapacity(void)
{
	uint8_t data[4]={0};
	uint8_t dataBuf[2]={0};
	uint8_t addr = 0x55;
	unsigned int volt = 0;
	uint8_t ret = 0;
	uint8_t OLD_Csum = 0;
	uint8_t OLD_DesCap_MSB = 0;
	uint8_t OLD_DesCap_LSB = 0;
	uint8_t temp = 0;
	uint8_t NEW_Csum = 0;

	DBG_STR("----------------ModifyDesignCapacity---------------");
	data[0] = 0x06;//flags
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 2, 0);
	data[0] = 0x00;
	data[1] = 0x00;
	data[2] = 0x80;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 3, 0);
	data[0] = 0x00;
	data[1] = 0x00;
	data[2] = 0x80;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 3, 0);
	data[0] = 0x00;
	data[1] = 0x13;
	data[2] = 0x00;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 3, 0);
	mdelay(2000);
	
	data[0] = 0x06;//flags
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 2, 0);
	
	data[0] = 0x61;
	data[1] = 0x00;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);
	data[0] = 0x3E;
	data[1] = 0x52;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);

	data[0] = 0x3F;
	data[1] = 0x00;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);
	data[0] = 0x60;//OLD_Csum
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 1, 0);
	//DBG_HEX("OLD_Csum(60):", dataBuf, 2);
	OLD_Csum = dataBuf[0];
	DBG_STR("OLD_Csum=%x",OLD_Csum);
	mdelay(100);

	data[0] = 0x4A;//OLD_DesCap_MSB
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 1, 0);
	OLD_DesCap_MSB = dataBuf[0];
	DBG_STR("OLD_DesCap_MSB=%x",dataBuf[0]);
	mdelay(100);
	data[0] = 0x4B;//OLD_DesCap_MSB
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 1, 0);
	OLD_DesCap_MSB = dataBuf[0];
	DBG_STR("OLD_DesCap_LSB=%x",dataBuf[0]);

	data[0] = 0x4A;
	data[1] = 0x01;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);
	//mdelay(100);
	
	
	data[0] = 0x4B;
	data[1] = 0x72;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);

	temp = (255 - OLD_Csum- OLD_DesCap_MSB- OLD_DesCap_LSB)%256;
	NEW_Csum = 255 - (temp + 0x04 + 0xB0)%256;
	DBG_STR("temp=%d,NEW_Csum=%d",temp,NEW_Csum);
	data[0] = 0x60;
	data[1] = NEW_Csum;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 2, 0);

	data[0] = 0x00;
	data[1] = 0x42;
	data[2] = 0x00;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 3, 0);
	data[0] = 0x06;//flags
	ret = GPIO_I2CWriteByte(addr, data[0], 0);
	ret = GPIO_I2CReadNByte(addr, dataBuf, 2, 0);
	DBG_HEX("Flags(06):", dataBuf, 2);
	mdelay(100);
	
	data[0] = 0x00;
	data[1] = 0x20;
	data[2] = 0x00;
	ret = GPIO_I2CWriteNByte(addr, dataBuf, 3, 0);
	DBG_STR("----------------ModifyDesignCapacity---------end------");
}





----------------ModifyDesignCapacity---------------
Flags(06):a8 7f 
1-Flags(06):a8 7f 
OLD_Csum=0
OLD_DesCap_MSB=0
OLD_DesCap_LSB=0
temp=255,NEW_Csum=76
Flags(06):a8 7f 
----------------ModifyDesignCapacity---------end------