/*******************************************************************************
* Function Name : I2C2_EV_IRQHandler
* Description : This function handles I2C2 Event interrupt request.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void I2C2_EV_IRQHandler(void)
{
switch (I2C_GetLastEvent(I2C2))
{
/* Slave Transmitter ---------------------------------------------------*/
case I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED: /* EV1 */
/* Transmit I2C2 data */
I2C_SendData(I2C2, I2C2_Buffer_Tx[Tx2_Idx++]);
break;
case I2C_EVENT_SLAVE_BYTE_TRANSMITTED: /* EV3 */
/* Transmit I2C2 data */
I2C_SendData(I2C2, I2C2_Buffer_Tx[Tx2_Idx++]);
break;
/* Slave Receiver ------------------------------------------------------*/
case I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED: /* EV1 */
break;
case I2C_EVENT_SLAVE_BYTE_RECEIVED: /* EV2 */
/* Store I2C2 received data */
I2C2_Buffer_Rx[Rx2_Idx++] = I2C_ReceiveData(I2C2);
if(Rx2_Idx == Tx2BufferSize)
{
I2C_TransmitPEC(I2C2, ENABLE);
Direction = Receiver;
}
break;
case I2C_EVENT_SLAVE_STOP_DETECTED: /* EV4 */
/* Clear I2C2 STOPF flag: read of I2C_SR1 followed by a write on I2C_CR1 */
(void)(I2C_GetITStatus(I2C2, I2C_IT_STOPF));
I2C_Cmd(I2C2, ENABLE);
break;
default:
break;
}
}
/*******************************************************************************
* Function Name : I2C1_EV_IRQHandler
* Description : This function handles I2C1 Event interrupt request.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void I2C1_EV_IRQHandler(void)
{
switch (I2C_GetLastEvent(I2C1))
{
case I2C_EVENT_MASTER_MODE_SELECT: /* EV5 */
if(Direction == Transmitter)
{
/* Master Transmitter ----------------------------------------------*/
/* Send slave Address for write */
I2C_Send7bitAddress(I2C1, I2C2_SLAVE_ADDRESS7, I2C_Direction_Transmitter);
}
else
{
/* Master Receiver -------------------------------------------------*/
/* Send slave Address for read */
I2C_Send7bitAddress(I2C1, I2C2_SLAVE_ADDRESS7, I2C_Direction_Receiver);
}
break;
/* Master Transmitter --------------------------------------------------*/
/* Test on I2C1 EV6 and first EV8 and clear them */
case I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED:
/* Send the first data */
I2C_SendData(I2C1, I2C1_Buffer_Tx[Tx1_Idx++]);
break;
/* Test on I2C1 EV8 and clear it */
case I2C_EVENT_MASTER_BYTE_TRANSMITTING: /* Without BTF, EV8 */
if(Tx1_Idx < (Tx1BufferSize))
{
/* Transmit I2C1 data */
I2C_SendData(I2C1, I2C1_Buffer_Tx[Tx1_Idx++]);
}
else
{
I2C_TransmitPEC(I2C1, ENABLE);
I2C_ITConfig(I2C1, I2C_IT_BUF, DISABLE);
}
break;
case I2C_EVENT_MASTER_BYTE_TRANSMITTED: /* With BTF EV8-2 */
I2C_ITConfig(I2C1, I2C_IT_BUF, ENABLE);
/* I2C1 Re-START Condition */
I2C_GenerateSTART(I2C1, ENABLE);
break;
/* Master Receiver -------------------------------------------------------*/
case I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED:
if(Tx2BufferSize == 1)
{
/* Disable I2C1 acknowledgement */
I2C_AcknowledgeConfig(I2C1, DISABLE);
/* Send I2C1 STOP Condition */
I2C_GenerateSTOP(I2C1, ENABLE);
}
break;
/* Test on I2C1 EV7 and clear it */
case I2C_EVENT_MASTER_BYTE_RECEIVED:
/* Store I2C1 received data */
I2C1_Buffer_Rx[Rx1_Idx++] = I2C_ReceiveData (I2C1);
/* Disable ACK and send I2C1 STOP condition before receiving the last data */
if(Rx1_Idx == (Tx2BufferSize - 1))
{
/* Disable I2C1 acknowledgement */
I2C_AcknowledgeConfig(I2C1, DISABLE);
/* Send I2C1 STOP Condition */
I2C_GenerateSTOP(I2C1, ENABLE);
}
break;
default:
break;
}
}
/*************************************************************
* I2C initialization code template
**************************************************************/
void I2C1_Init()
{
#if (STRCMP($interruptEn$, 0) == 0)
NVIC_InitTypeDef NVIC_InitStructure;
#endif
I2C_InitTypeDef I2C_InitStructure;
//PUT_A_NEW_LINE_HERE
//
// Enable I2C clock
//
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
#if (STRCMP($SCL1$, DISABLE) == 0 || STRCMP($SDA1$, DISABLE) == 0)
//PUT_A_NEW_LINE_HERE
//
// Enable AFIO and I2C clock
//
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
//PUT_A_NEW_LINE_HERE
//
// I2C SCL pin remap to PB8, I2C SDA pin remap to PB8
//
GPIO_PinRemapConfig(GPIO_Remap_I2C1,ENABLE);
#endif
//PUT_A_NEW_LINE_HERE
//
// I2C config
//
I2C_InitStructure.I2C_Mode = $mode$;
I2C_InitStructure.I2C_DutyCycle = $dutyCycle$;
I2C_InitStructure.I2C_OwnAddress1 = $ownAddress$;
I2C_InitStructure.I2C_Ack = $ack$;
I2C_InitStructure.I2C_AcknowledgedAddress = $ackAddress$;
I2C_InitStructure.I2C_ClockSpeed = $speed$;
I2C_Init($I2C$, &I2C_InitStructure);
//PUT_A_NEW_LINE_HERE
//
// Enable I2C
//
I2C_Cmd($I2C$, ENABLE);
I2C_Init($I2C$, &I2C_InitStructure);
#if (STRCMP($interruptEn$, 0) == 0)
//PUT_A_NEW_LINE_HERE
//
// Enable I2C DualAddress
//
I2C_OwnAddress2Config($I2C$, $ownAddress2$);
I2C_DualAddressCmd($I2C$, ENABLE);
#endif
#if($modeSelect$)
//PUT_A_NEW_LINE_HERE
//
// Transmits the address byte to select the slave device
//
I2C_Send7bitAddress($I2C$, $slaveAddress$, $transferDirection$);
#endif
#if(STRCMP($GenCallEn$, DISABLE) == 0)
//PUT_A_NEW_LINE_HERE
//
// Enables I2C1 general call feature
//
I2C_GeneralCallCmd($I2C$, ENABLE);
#endif
#if(STRCMP($StrchClkEn$, DISABLE) == 0)
//PUT_A_NEW_LINE_HERE
//
// Enables I2C1 Clock stretching
//
I2C_StretchClockCmd($I2C$, ENABLE);
#endif
#if (STRCMP($interruptEn$, 0) == 0)
//PUT_A_NEW_LINE_HERE
//
// Interrupt config
//
I2C_ITConfig($I2C$, $interruptEn$, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = I2C1_EV_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#endif
#if($pecTransmitEn$)
//PUT_A_NEW_LINE_HERE
//
// PEC Transmit Enable
//
#if($pecTransmitEn$)
I2C_TransmitPEC($I2C$, ENABLE);
#endif
#if($pecCalculateEn$)
I2C_CalculatePEC($I2C$, ENABLE);
#endif
#if(STRCMP($pecPosition$, I2C_PECPosition_Next))
I2C_PECPositionConfig($I2C$, $pecPosition$);
#endif
#if(STRCMP($pecPosition$, I2C_PECPosition_Current))
I2C_PECPositionConfig($I2C$, $pecPosition$);
#endif
#endif
#if(!STRCMP($mode$, I2C_Mode_I2C))
//PUT_A_NEW_LINE_HERE
//
// PEC Transmit Enable
//
I2C_SMBusAlertConfig($I2C$, $SMBusAlertCfg$);
I2C_ARPCmd($I2C$, $ARPEn$);
#endif
}
