/*内部库调用*/
int IIC_Write(uint8_t addr, uint8_t reg, uint8_t len, uint8_t* data)
{
if(I2C_BurstWrite(HW_I2C0,addr,reg,1,data,len))
return FALSE;
else
return TRUE;
}
int eep_write_page(uint32_t addr, uint8_t *buf, uint32_t len)
{
int ret;
uint8_t chip_addr;
chip_addr = (addr/256) + eep_dev.addr;
ret = I2C_BurstWrite(eep_dev.bus_instance, chip_addr, addr%256, 1, buf, len);
while(I2C_Probe(eep_dev.bus_instance, eep_dev.addr));
return ret;
}
/**
* @brief write single register value
* \param[in] instance instance of i2c module
* \param[in] chipAddr i2c slave addr
* \param[in] addr i2c slave register offset
* \param[in] data data to write
* @note usually used on i2c sensor devices
* \retval 0 success
* \retval 1 failure
*/
int I2C_WriteSingleRegister(uint32_t instance, uint8_t chipAddr, uint8_t addr, uint8_t data)
{
return I2C_BurstWrite(instance, chipAddr, addr, 1, &data, 1);
}
/**
* @brief 写一个从机寄存器(寄存器地址在从机中必须为8位地址 如MMA845x等传感器设备)
* @code
* //使用i2c的1模块将data中的1字节数据写入地址为0x55的从机中地址为0x01的设备
* I2C_WriteSingleRegister(HW_I2C1, 0x55, 0x01, data);
* @endcode
* @param instance :I2C模块号
* @arg HW_I2C0 :I2C0模块
* @arg HW_I2C1 :I2C1模块
* @arg HW_I2C2 :I2C2模块
* @param deviceAddress :从机设备地址0~127
* @param registerAddress: 寄存器在从机中的地址
* @param Data: 需要写入的数据
* @retval 0:成功 1:地址发送失败 2:数据发送失败
*/
uint8_t I2C_WriteSingleRegister(uint32_t instance, uint8_t deviceAddress, uint8_t registerAddress, uint8_t data)
{
return I2C_BurstWrite(instance ,deviceAddress, registerAddress, 1, &data, 1);
}
int MB85RC64_WriteByte(uint16_t pos, uint8_t data)
{
pos = BSWAP_16(pos);
return I2C_BurstWrite(gInstance, MB85RC64_ADDR, pos, 2, &data, 1);
}
