// =========================================================
// I2C Master Tx Wake Up Callback Function
// =========================================================
void I2C_MasterTxWakeup(uint32_t u32Status)
{
if(u32Status == 0x08) /* START has been transmitted */
{
I2C_SetData(I2C_MS_PORT, (I2CMstAddr << 1)); /* Write SLA+W to Register I2CDAT */
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_SI);
}
else if(u32Status == 0x18) /* SLA+W has been transmitted and ACK has been received */
{
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_STO_SI);
I2CMstWakeupEndFlag = 1;
//I2C_DisableTimeout(I2C_MS_PORT);
}
else if(u32Status == 0x20) /* SLA+W has been transmitted and NOT ACK has been received */
{
//------TimeOut Recover Master state-----------
if(I2CMstEndFlag==0 && (getTickCount() - I2CMstTimeOutCounter) > 1) //3ms
{
I2CMstWakeupEnStartFlag=1;
I2CMstTRxEnStartFlag=1;
I2CMstSleepEnStartFlag=1;
I2CMstEndFlag=1;
I2CMstTimeOutFlag=1;
}
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_STA_STO_SI);
}
else
{
/* TO DO */
printf("Status 0x%x is NOT processed\n", u32Status);
}
}
/*---------------------------------------------------------------------------------------------------------*/
void I2C_MasterTx(uint32_t u32Status)
{
if(u32Status == 0x08) /* START has been transmitted */
{
I2CMstState=0;
I2C_SetData(I2C_MS_PORT, I2CMstAddr << 1); /* Write SLA+W to Register I2CDAT */
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_SI);
}
else if(u32Status == 0x18) /* SLA+W has been transmitted and ACK has been received */
{
I2C_SetData(I2C_MS_PORT, I2CMstCmd);
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_SI);
I2CMstStage=0;
}
else if(u32Status == 0x20) /* SLA+W has been transmitted and NACK has been received */
{
//------TimeOut Recover Master state-----------
if(I2CMstEndFlag==0 && (getTickCount() - I2CMstTimeOutCounter) > 1)
{
I2CMstWakeupEnStartFlag=1;
I2CMstTRxEnStartFlag=1;
I2CMstSleepEnStartFlag=1;
I2CMstEndFlag=1;
I2CMstTimeOutFlag=1;
}
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_STA_STO_SI);
}
else if(u32Status == 0x28) /* DATA has been transmitted and ACK has been received */
{
if(I2CMstStage==0)
{
I2C_SetData(I2C_MS_PORT, I2CMstCmd>>8);
I2CMstStage=1;
I2C_SET_CONTROL_REG(I2C_MS_PORT, I2C_CTL_SI);
}
else if(I2CCurrentLen < I2CDataEndBit)
//*********************************************************
void I2C_Main()
{
char i;
#if Slave_Mode == 1
if(I2C->SlaveGO)
{
I2C->SlaveGO=0;
I2C_Slave_Mode();
SSPIE=1;
if(I2C->SlaveTxGO)
{
I2C->SlaveTxGO=0;
SS1=0;
I2C->SS=0;
}
if(I2C->SlaveRxGO)
{
I2C->SlaveRxGO=0;
I2C_SetData(0);
}
LED2=~LED2;
}
#endif
#if Master_Mode == 1
if(I2C->MasterRxGO)
{
I2C->MasterRxGO=0;
I2C_Master_Reception();
TMain->Test=1;
LED2=~LED2;
#if UART_use == 1
for(i=0;i<32;i++)
{
UART->TxData[i]=I2C->BufferReader[i];
}
UART->TxGO=1;
#endif
}
else
{
if(SS1)
{
if(!I2C->SS)
{
I2C->SS=1;
I2C->MasterRxGO=1;
}
}
else
{
if(I2C->SS)
{
I2C->SS=0;
}
if(I2C->MasterTxGO)
{
I2C->MasterTxGO=0;
I2C_Master_Transmission();
}
}
}
#endif
}
