/**
* @brief Transmits the address byte to select the slave device.
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
* @param Address: specifies the slave address which will be transmitted
* @param I2C_Direction: specifies whether the I2C device will be a
* Transmitter or a Receiver. This parameter can be one of the following values
* @arg I2C_Direction_Transmitter: Transmitter mode
* @arg I2C_Direction_Receiver: Receiver mode
* @retval None.
*/
void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, uint8_t Address, uint8_t I2C_Direction)
{
/* Check the parameters */
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
assert_param(IS_I2C_DIRECTION(I2C_Direction));
/* Test on the direction to set/reset the read/write bit */
if (I2C_Direction != I2C_Direction_Transmitter)
{
/* Set the address bit0 for read */
Address |= OAR1_ADD0_Set;
}
else
{
// [ILG]
#if defined ( __GNUC__ )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
/* Reset the address bit0 for write */
Address &= OAR1_ADD0_Reset;
// [ILG]
#if defined ( __GNUC__ )
#pragma GCC diagnostic pop
#endif
}
/* Send the address */
I2Cx->DR = Address;
}
/**
* @brief Transmits the address byte to select the Slave device.
* @param Address: specifies the Slave address which will be transmitted.
* The Address[0] bit value is ignored. So only Address[7..1] bits
* are the seven-bit Slave address.
* @param Direction: specifies whether the I2C device will be a
* Transmitter or a Receiver. This parameter can be one of the
* following values:
* @arg I2C_Direction_Transmitter: Transmitter mode;
* @arg I2C_Direction_Receiver: Receiver mode.
* @retval None.
*/
void I2C_Send7bitAddress(uint8_t Address, uint32_t Direction)
{
MDR_I2C_TypeDef *I2Cx;
assert_param(IS_I2C_DIRECTION(Direction));
I2Cx = MDR_I2C;
I2Cx->TXD = (Address & ~I2C_Direction_Msk) | Direction;
I2Cx->CMD = I2C_CMD_START | I2C_CMD_WR;
}
/**
* @brief Transmits the address byte to select the slave device.
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
* @param Address: specifies the slave address which will be transmitted
* @param I2C_Direction: specifies whether the I2C device will be a
* Transmitter or a Receiver. This parameter can be one of the following values
* @arg I2C_Direction_Transmitter: Transmitter mode
* @arg I2C_Direction_Receiver: Receiver mode
* @retval None.
*/
void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, uint8_t Address, uint8_t I2C_Direction) {
/* Check the parameters */
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
assert_param(IS_I2C_DIRECTION(I2C_Direction));
/* Test on the direction to set/reset the read/write bit */
if(I2C_Direction != I2C_Direction_Transmitter) {
/* Set the address bit0 for read */
Address |= OAR1_ADD0_Set;
} else {
/* Reset the address bit0 for write */
Address &= OAR1_ADD0_Reset;
}
/* Send the address */
I2Cx->DR = Address;
}
