【华大测评】03 + 漂亮的OLED中英文混合显示（1）

/**

******************************************************************************

** \brief Initialize the I2C peripheral for master

**

** \param None

**

** \retval 

** 

** 

******************************************************************************/

void I2C_Master_Config(void)

{

stc_i2c_init_t stcI2cInit;

stc_clk_freq_t stcClkFreq;



/* Initialize I2C port*/

PORT_SetFunc(I2C2_SCL_PORT, I2C2_SCL_PIN, Func_I2c2_Scl, Disable);

PORT_SetFunc(I2C2_SDA_PORT, I2C2_SDA_PIN, Func_I2c2_Sda, Disable);



/* Enable I2C Peripheral*/

PWC_Fcg1PeriphClockCmd(PWC_FCG1_PERIPH_I2C2, Enable);



I2C_DeInit(I2C_CH);



/* Get system clock frequency */

CLK_GetClockFreq(&stcClkFreq);



MEM_ZERO_STRUCT(stcI2cInit);

stcI2cInit.enI2cMode = I2cMaster;

stcI2cInit.u32Pclk3 = stcClkFreq.pclk3Freq;

stcI2cInit.u32Baudrate = 400000ul;

stcI2cInit.u32SclTime = 0ul;

I2C_Init(I2C_CH, &stcI2cInit);



I2C_Cmd(I2C_CH, Enable);

}

/**

******************************************************************************

** \brief Send data to slave

**

** \param pTxData Pointer to the data buffer

** \param u32Size Data size

**

** \retval 

** 

** 

******************************************************************************/

void Master_WriteData(uint8_t Data, uint32_t u32Size)

{

uint32_t u32TimeOut = TIMEOUT;



while(u32Size--)

{

/* Wait tx buffer empty */

u32TimeOut = TIMEOUT;

while(Reset == I2C_GetStatus(I2C_CH, I2C_SR_TEMPTYF))

{

if(0ul == (u32TimeOut--))

{

break;

}

}



/* Send one byte data */

I2C_SendData(I2C_CH, Data);



/* Wait transfer end*/

u32TimeOut = TIMEOUT;

while(Reset == I2C_GetStatus(I2C_CH, I2C_SR_TENDF))

{

if(0ul == (u32TimeOut--))

{

break;

}

}



/* Check ACK */

u32TimeOut = TIMEOUT;

while(Set == I2C_GetStatus(I2C_CH, I2C_SR_NACKDETECTF))

{

if(0ul == (u32TimeOut--))

{

break;

}

}

}

}