DRV_USART_TRANSFER_STATUS DRV_USART_TransferStatus(const DRV_HANDLE handle)
{
DRV_USART_CLIENT_OBJ * client;
DRV_USART_OBJ * hDriver;
DRV_USART_TRANSFER_STATUS result = 0;
client = _DRV_USART_DriverHandleValidate(handle);
/* Validate the handle */
if(client == NULL)
{
SYS_DEBUG(0, "Invalid Driver handle");
return 0;
}
hDriver = client->hDriver;
/* If the Rx interrupt flag is set then there is data available
else there isn't */
result |= (SYS_INT_SourceStatusGet(hDriver->rxInterruptSource)) ?
DRV_USART_TRANSFER_STATUS_RECEIVER_DATA_PRESENT : DRV_USART_TRANSFER_STATUS_RECEIVER_EMPTY;
/* If the TX interrupt flag is set, then the Tx Buffer is empty */
result |= (SYS_INT_SourceStatusGet(hDriver->txInterruptSource)) ? DRV_USART_TRANSFER_STATUS_TRANSMIT_EMPTY : 0;
/* Check if the TX buffer is full */
result |= (PLIB_USART_TransmitterBufferIsFull(hDriver->moduleId)) ? DRV_USART_TRANSFER_STATUS_TRANSMIT_FULL : 0;
return(result);
}
/*******************************************************************************
Function:
void SYS_DMA_TasksErrorISR(SYS_MODULE_OBJ object, DMA_CHANNEL activeChannel)
Summary:
Maintains the system service's state machine and implements its ISR
Description:
This routine is used to maintain the DMA system service's internal error state machine
and implement its ISR for DMA interrupt trigger implementations(interrupt mode).
This function is specifically designed for DMA interrupt trigger
implementations (interrupt mode).
In interrupt mode, this function should be called in the interrupt
service routine of the DMA channel that is associated with this transfer.
Remarks:
It is called by appropriate raw ISR.
This routine may execute in an ISR context and will never block or access any
resources that may cause it to block.
*/
void SYS_DMA_TasksErrorISR(SYS_MODULE_OBJ object, DMA_CHANNEL activeChannel)
{
SYS_DMA_CHANNEL_OBJECT *chanObj;
DMA_CHANNEL_INT_SOURCE chanIntSrc;
/* Find out the interrupt source number for the last active DMA channel */
chanIntSrc = PLIB_DMA_ChannelXTriggerSourceNumberGet(DMA_ID_0, activeChannel);
/* Check whether the active DMA channel interrupt has occured */
if(true == SYS_INT_SourceStatusGet(chanIntSrc))
{
if(true == PLIB_DMA_ChannelXINTSourceFlagGet(DMA_ID_0,activeChannel,
DMA_INT_ADDRESS_ERROR))
{
/* Channel is by default disabled on completion of a block transfer */
/* Clear the Block transfer complete flag */
PLIB_DMA_ChannelXINTSourceFlagClear(DMA_ID_0,activeChannel,
DMA_INT_ADDRESS_ERROR);
SYS_INT_SourceStatusClear(chanIntSrc);
/* Find out the channel object and give a callback */
chanObj = (SYS_DMA_CHANNEL_OBJECT *) &gSysDMAChannelObj[activeChannel];
chanObj->errorInfo = SYS_DMA_ERROR_ADDRESS_ERROR;
if(NULL != chanObj->pEventCallBack)
{
chanObj->pEventCallBack(SYS_DMA_TRANSFER_EVENT_ERROR,
(SYS_DMA_CHANNEL_HANDLE)chanObj,chanObj->hClientArg);
}
}
}
return;
}
void DRV_USART_TasksTransmit(SYS_MODULE_OBJ object)
{
/* This is the USART Driver Transmit tasks routine.
In this function, the driver checks if a transmit
interrupt is active and if there are any buffers in
queue. If so the buffer is serviced. A buffer that
is serviced completely is removed from the queue.
*/
DRV_USART_OBJ * hDriver = &gDrvUSARTObj[object];
if((!hDriver->inUse) || (hDriver->status != SYS_STATUS_READY))
{
/* This intance of the driver is not initialized. Don't
* do anything */
return;
}
if(SYS_INT_SourceStatusGet(hDriver->txInterruptSource))
{
/* The USART driver is configured to generate an
interrupt when the FIFO is empty. Additionally
the queue is not empty. Which means there is
work to done in this routine. */
_DRV_USART_TRANSMIT_BUFFER_QUEUE_TASKS(hDriver);
/* Clear up the interrupt flag */
SYS_INT_SourceStatusClear(hDriver->txInterruptSource);
}
}
void DRV_USART_TasksReceive(SYS_MODULE_OBJ object)
{
/* This is the USART Driver Receive tasks routine. If the receive
interrupt flag is set, the tasks routines are executed.
*/
DRV_USART_OBJ * hDriver = &gDrvUSARTObj[object];
if((!hDriver->inUse) || (hDriver->status != SYS_STATUS_READY))
{
/* This intance of the driver is not initialized. Dont
do anything */
return;
}
if(SYS_INT_SourceStatusGet(hDriver->rxInterruptSource))
{
_DRV_USART_RECEIVE_BUFFER_QUEUE_TASKS(hDriver);
/* Clear up the interrupt flag */
SYS_INT_SourceStatusClear(hDriver->rxInterruptSource);
}
}
int32_t DRV_SPI_ISRMasterEBM8BitTasks ( struct DRV_SPI_DRIVER_OBJECT * pDrvInstance )
{
bool continueLoop;
/* Disable the interrupts */
SYS_INT_SourceDisable(pDrvInstance->rxInterruptSource);
SYS_INT_SourceDisable(pDrvInstance->txInterruptSource);
SYS_INT_SourceDisable(pDrvInstance->errInterruptSource);
do {
DRV_SPI_JOB_OBJECT * currentJob = pDrvInstance->currentJob;
SPI_MODULE_ID spiId = pDrvInstance->spiId;
/* Check for a new task */
if (pDrvInstance->currentJob == NULL)
{
if (DRV_SPI_SYS_QUEUE_Dequeue(pDrvInstance->queue, (void *)&(pDrvInstance->currentJob)) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Error in dequeing.");
return 0;
}
if (pDrvInstance->currentJob == NULL)
{
pDrvInstance->txEnabled = false;
return 0;
}
currentJob = pDrvInstance->currentJob;
pDrvInstance->symbolsInProgress = 0;
/* Call the operation starting function pointer. This can be used to modify the slave select lines */
DRV_SPI_CLIENT_OBJECT * pClient = (DRV_SPI_CLIENT_OBJECT*)currentJob->pClient;
if (pClient->operationStarting != NULL)
{
(*pClient->operationStarting)(DRV_SPI_BUFFER_EVENT_PROCESSING, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* Check the baud rate. If its different set the new baud rate*/
if (pClient->baudRate != pDrvInstance->currentBaudRate)
{
PLIB_SPI_BaudRateSet( spiId , SYS_CLK_PeripheralFrequencyGet(pDrvInstance->spiClk), pClient->baudRate );
pDrvInstance->currentBaudRate = pClient->baudRate;
}
/* List the new job as processing*/
currentJob->status = DRV_SPI_BUFFER_EVENT_PROCESSING;
if (currentJob->dataLeftToTx +currentJob->dummyLeftToTx > PLIB_SPI_RX_8BIT_FIFO_SIZE(spiId))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_TRANSMIT_BUFFER_IS_1HALF_EMPTY_OR_MORE);
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_RECEIVE_BUFFER_IS_1HALF_FULL_OR_MORE);
}
/* Flush out the Receive buffer */
PLIB_SPI_BufferClear(spiId);
}
/* Set up DMA Receive job. This is done here to ensure that the RX job is ready to receive when TXing starts*/
if ((pDrvInstance->rxDmaThreshold != 0) && (currentJob->dataLeftToRx > pDrvInstance->rxDmaThreshold))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_RECEIVE_BUFFER_IS_NOT_EMPTY);
uint8_t * ptr = &(currentJob->rxBuffer[currentJob->dataRxed]);
uint32_t len = MIN(MIN(PLIB_DMA_MAX_TRF_SIZE, DRV_SPI_DMA_TXFER_SIZE), currentJob->dataLeftToRx);
void * spiPtr = PLIB_SPI_BufferAddressGet(spiId);
currentJob->rxDMAProgressStage = DRV_SPI_DMA_DATA_INPROGRESS;
currentJob->dataLeftToRx -= len;
currentJob->dataRxed += len;
pDrvInstance->rxEnabled = false;
SYS_DMA_ChannelTransferAdd(pDrvInstance->rxDmaChannelHandle, spiPtr, 1, ptr, len, 1);
}
else if ((currentJob->rxDMAProgressStage == DRV_SPI_DMA_NONE) && (currentJob->dataLeftToRx == 0) && (pDrvInstance->rxDmaThreshold != 0) && (currentJob->dummyLeftToRx > pDrvInstance->rxDmaThreshold))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_RECEIVE_BUFFER_IS_NOT_EMPTY);
uint8_t * ptr = sDrvSpiRxDummy;
uint32_t len = MIN(MIN(MIN(PLIB_DMA_MAX_TRF_SIZE, DRV_SPI_DMA_DUMMY_BUFFER_SIZE), DRV_SPI_DMA_TXFER_SIZE), currentJob->dummyLeftToRx);
void * spiPtr = PLIB_SPI_BufferAddressGet(spiId);
currentJob->rxDMAProgressStage = DRV_SPI_DMA_DUMMY_INPROGRESS;
currentJob->dummyLeftToRx -= len;
pDrvInstance->rxEnabled = false;
SYS_DMA_ChannelTransferAdd(pDrvInstance->rxDmaChannelHandle, spiPtr, 1, ptr, len, 1);
}
/* Set up the DMA Transmit job here. This is done after the RX job to help prevent buffer overruns.*/
if ((pDrvInstance->txDmaThreshold != 0) && (currentJob->dataLeftToTx > pDrvInstance->txDmaThreshold))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_TRANSMIT_BUFFER_IS_1HALF_EMPTY_OR_MORE);
uint8_t * ptr = &(currentJob->txBuffer[currentJob->dataTxed]);
uint32_t len = MIN(MIN(PLIB_DMA_MAX_TRF_SIZE, DRV_SPI_DMA_TXFER_SIZE), currentJob->dataLeftToTx);
void * spiPtr = PLIB_SPI_BufferAddressGet(pDrvInstance->spiId);
currentJob->txDMAProgressStage = DRV_SPI_DMA_DATA_INPROGRESS;
currentJob->dataLeftToTx -= len;
currentJob->dataTxed += len;
pDrvInstance->txEnabled = false;
SYS_DMA_ChannelTransferAdd(pDrvInstance->txDmaChannelHandle, ptr, len, spiPtr, 1, 1);
}
else if ((currentJob->txDMAProgressStage == DRV_SPI_DMA_NONE) && (currentJob->dataLeftToTx == 0) && (pDrvInstance->txDmaThreshold != 0) && (currentJob->dummyLeftToTx > pDrvInstance->txDmaThreshold))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_TRANSMIT_BUFFER_IS_1HALF_EMPTY_OR_MORE);
uint8_t * ptr = sDrvSpiTxDummy;
uint32_t len = MIN(MIN(MIN(PLIB_DMA_MAX_TRF_SIZE, DRV_SPI_DMA_DUMMY_BUFFER_SIZE), DRV_SPI_DMA_TXFER_SIZE), currentJob->dummyLeftToTx);
void * spiPtr = PLIB_SPI_BufferAddressGet(pDrvInstance->spiId);
currentJob->txDMAProgressStage = DRV_SPI_DMA_DUMMY_INPROGRESS;
currentJob->dummyLeftToTx -= len;
pDrvInstance->txEnabled = false;
SYS_DMA_ChannelTransferAdd(pDrvInstance->txDmaChannelHandle, ptr, len, spiPtr, 1, 1);
}
bool rxDMAInProgress = (currentJob->rxDMAProgressStage == DRV_SPI_DMA_DATA_INPROGRESS) || (currentJob->rxDMAProgressStage == DRV_SPI_DMA_DUMMY_INPROGRESS);
bool txDMAInProgress = (currentJob->txDMAProgressStage == DRV_SPI_DMA_DATA_INPROGRESS) || (currentJob->txDMAProgressStage == DRV_SPI_DMA_DUMMY_INPROGRESS);
continueLoop = false;
/* Execute the sub tasks */
DRV_SPI_ISRErrorTasks(pDrvInstance);
/* Figure out how many bytes are left to be received */
size_t bytesLeft = currentJob->dataLeftToRx + currentJob->dummyLeftToRx;
// Check to see if we have any data left to receive and update the bytes left.
if ((bytesLeft != 0) && !rxDMAInProgress)
{
DRV_SPI_MasterEBMReceive8BitISR(pDrvInstance);
bytesLeft = currentJob->dataLeftToRx + currentJob->dummyLeftToRx;
}
if
(!txDMAInProgress &&
(currentJob->dataLeftToTx +currentJob->dummyLeftToTx != 0)
)
{
DRV_SPI_MasterEBMSend8BitISR(pDrvInstance);
}
if ((bytesLeft == 0) && !rxDMAInProgress && !txDMAInProgress)
{
// Disable the interrupt, or more correctly don't re-enable it later*/
pDrvInstance->rxEnabled = false;
/* Job is complete*/
currentJob->status = DRV_SPI_BUFFER_EVENT_COMPLETE;
/* Call the job complete call back*/
if (currentJob->completeCB != NULL)
{
(*currentJob->completeCB)(DRV_SPI_BUFFER_EVENT_COMPLETE, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* Call the operation complete call back. This is different than the
job complete callback. This can be used to modify the Slave Select line.
The job complete callback can be used to free a client that is blocked
waiting for complete*/
DRV_SPI_CLIENT_OBJECT * pClient = (DRV_SPI_CLIENT_OBJECT*)currentJob->pClient;
if (pClient->operationEnded != NULL)
{
(*pClient->operationEnded)(DRV_SPI_BUFFER_EVENT_COMPLETE, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* Return the job back to the free queue*/
if (DRV_SPI_SYS_QUEUE_FreeElement(pDrvInstance->queue, currentJob) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Queue free element error.");
return 0;
}
/* Clean up */
pDrvInstance->currentJob = NULL;
if (!DRV_SPI_SYS_QUEUE_IsEmpty(pDrvInstance->queue))
{
continueLoop = true;
continue;
}
else
{
break;
}
}
else if (rxDMAInProgress)
{
// DMA is in progress
// Wipe out the symbols in Progress
pDrvInstance->rxEnabled = false;
pDrvInstance->symbolsInProgress = 0;
}
/* Check to see if the interrupts would fire again if so just go back into
the loop instead of suffering the interrupt latency of exiting and re-entering*/
if (pDrvInstance->currentJob != NULL)
{
/* Clear the Interrupts */
SYS_INT_SourceStatusClear(pDrvInstance->rxInterruptSource);
SYS_INT_SourceStatusClear(pDrvInstance->txInterruptSource);
SYS_INT_SourceStatusClear(pDrvInstance->errInterruptSource);
/* Interrupts should immediately become active again if they're in a fired condition */
if (((pDrvInstance->rxEnabled) && SYS_INT_SourceStatusGet(pDrvInstance->rxInterruptSource)) ||
((pDrvInstance->txEnabled) && SYS_INT_SourceStatusGet(pDrvInstance->txInterruptSource)) ||
(SYS_INT_SourceStatusGet(pDrvInstance->errInterruptSource)))
{
/* Interrupt would fire again anyway so we should just go back to the start*/
continueLoop = true;
continue;
}
/* If we're here then we know that the interrupt should not be firing again so we can exit cleanly*/
/* Clear the interrupts now that we're done*/
/* Re-enable the interrupts*/
if (pDrvInstance->rxEnabled)
{
SYS_INT_SourceEnable(pDrvInstance->rxInterruptSource);
}
if (pDrvInstance->txEnabled)
{
SYS_INT_SourceEnable(pDrvInstance->txInterruptSource);
}
return 0;
}
} while(continueLoop);
/* if we're here it means that we have no more jobs in the queue, tx and rx interrupts will be re-enabled by the BufferAdd* functions*/
SYS_INT_SourceStatusClear(pDrvInstance->rxInterruptSource);
SYS_INT_SourceStatusClear(pDrvInstance->txInterruptSource);
return 0;
}
int32_t DRV_SPI_ISRSlaveEBM8BitTasks ( struct DRV_SPI_DRIVER_OBJECT * pDrvInstance )
{
volatile bool continueLoop;
SYS_INT_SourceDisable(pDrvInstance->rxInterruptSource);
SYS_INT_SourceDisable(pDrvInstance->txInterruptSource);
SYS_INT_SourceDisable(pDrvInstance->errInterruptSource);
do {
continueLoop = false;
DRV_SPI_JOB_OBJECT * currentJob = pDrvInstance->currentJob;
SPI_MODULE_ID spiId = pDrvInstance->spiId;
if (pDrvInstance->currentJob == NULL)
{
if (DRV_SPI_SYS_QUEUE_Dequeue(pDrvInstance->queue, (void *)&(pDrvInstance->currentJob)) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Error in dequeing.");
return 0;
}
if (pDrvInstance->currentJob == NULL)
{
pDrvInstance->txEnabled = false;
return 0;
}
currentJob = pDrvInstance->currentJob;
pDrvInstance->symbolsInProgress = 0;
/* Call the operation starting function pointer. This can be used to modify the slave select lines */
DRV_SPI_CLIENT_OBJECT * pClient = (DRV_SPI_CLIENT_OBJECT*)currentJob->pClient;
if (pClient->operationStarting != NULL)
{
(*pClient->operationStarting)(DRV_SPI_BUFFER_EVENT_PROCESSING, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* List the new job as processing*/
currentJob->status = DRV_SPI_BUFFER_EVENT_PROCESSING;
if (currentJob->dataLeftToTx > PLIB_SPI_RX_8BIT_FIFO_SIZE(spiId))
{
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_TRANSMIT_BUFFER_IS_1HALF_EMPTY_OR_MORE);
PLIB_SPI_FIFOInterruptModeSelect(spiId, SPI_FIFO_INTERRUPT_WHEN_RECEIVE_BUFFER_IS_1HALF_FULL_OR_MORE);
}
/* Flush out the Receive buffer */
PLIB_SPI_BufferClear(spiId);
}
if (currentJob->dataLeftToRx + currentJob->dummyLeftToRx != 0)
{
DRV_SPI_SlaveEBMReceive8BitISR(pDrvInstance);
}
if (currentJob->dataLeftToTx != 0)
{
DRV_SPI_SlaveEBMSend8BitISR(pDrvInstance);
}
else
{
pDrvInstance->txEnabled = false;
pDrvInstance->rxEnabled = true;
}
DRV_SPI_ISRErrorTasks(pDrvInstance);
/* Check to see if the job is done */
if (currentJob->dataLeftToRx + currentJob->dummyLeftToRx == 0)
{
// Disable the interrupt, or more correctly don't re-enable it later*/
pDrvInstance->rxEnabled = false;
/* Job is complete*/
currentJob->status = DRV_SPI_BUFFER_EVENT_COMPLETE;
/* Call the job complete call back*/
if (currentJob->completeCB != NULL)
{
(*currentJob->completeCB)(DRV_SPI_BUFFER_EVENT_COMPLETE, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* Call the operation complete call back. This is different than the
job complete callback. This can be used to modify the Slave Select line.
The job complete callback can be used to free a client that is blocked
waiting for complete*/
DRV_SPI_CLIENT_OBJECT * pClient = (DRV_SPI_CLIENT_OBJECT*)currentJob->pClient;
if (pClient->operationEnded != NULL)
{
(*pClient->operationEnded)(DRV_SPI_BUFFER_EVENT_COMPLETE, (DRV_SPI_BUFFER_HANDLE)currentJob, currentJob->context);
}
/* Return the job back to the free queue*/
if (DRV_SPI_SYS_QUEUE_FreeElement(pDrvInstance->queue, currentJob) != DRV_SPI_SYS_QUEUE_SUCCESS)
{
SYS_ASSERT(false, "\r\nSPI Driver: Queue free element error.");
return 0;
}
/* Clean up */
pDrvInstance->currentJob = NULL;
if (!DRV_SPI_SYS_QUEUE_IsEmpty(pDrvInstance->queue))
{
continueLoop = true;
continue;
}
}
/* Check to see if the interrupts would fire again if so just go back into
the loop instead of suffering the interrupt latency of exiting and re-entering*/
if (pDrvInstance->currentJob != NULL)
{
/* Clear the Interrupts */
SYS_INT_SourceStatusClear(pDrvInstance->rxInterruptSource);
SYS_INT_SourceStatusClear(pDrvInstance->txInterruptSource);
SYS_INT_SourceStatusClear(pDrvInstance->errInterruptSource);
/* Interrupts should immediately become active again if they're in a fired condition */
if ((SYS_INT_SourceStatusGet(pDrvInstance->rxInterruptSource)) ||
(SYS_INT_SourceStatusGet(pDrvInstance->errInterruptSource)))
{
/* Interrupt would fire again anyway so we should just go back to the start*/
continueLoop = true;
continue;
}
/* If we're here then we know that the interrupt should not be firing immediately so enable it and exit */
SYS_INT_SourceEnable(pDrvInstance->rxInterruptSource);
return 0;
}
} while(continueLoop);
return 0;
}
void __attribute__((interrupt, no_auto_psv)) _MI2C2Interrupt(void)
#endif
#endif
{
ACCEL_BOOL polling;
ACCEL_CMD_DATA *pCmdData;
uint32_t *pIndex;
// uint8_t **pRxBuffer;
uint8_t *pRxBuffer;
// if(I2CPriority == ACCEL_PRIORIY)
// {
// pCmdData = accelData;
// pIndex = &accelIdx;
//// pRxBuffer = &AccelRxBuffer;
// pRxBuffer = AccelRxBuffer;
// }
// else
// {
//// pCmdData = (ACCEL_CMD_DATA *)EepromI2CData;
//// pIndex = &EepromI2CIdx;
//// pRxBuffer = &EepromRxBuffer;
// }
pCmdData = accelData;
pIndex = &accelIdx;
pRxBuffer = AccelRxBuffer;
// AccelRxBuffer += 4;
if(SYS_INT_SourceStatusGet(ACCEL_BMA250_I2C_SOURCE))
{
polling = ACCEL_FALSE;
switch(pCmdData[*pIndex].cmd)
{
case ACCEL_CMD_START:
PLIB_I2C_MasterStart(ACCEL_BMA250_I2C_MODULE);
break;
case ACCEL_CMD_RESTART:
PLIB_I2C_MasterStartRepeat(ACCEL_BMA250_I2C_MODULE);
break;
case ACCEL_CMD_STOP:
PLIB_I2C_MasterStop(ACCEL_BMA250_I2C_MODULE);
break;
case ACCEL_CMD_TX_BYTE:
PLIB_I2C_TransmitterByteSend(ACCEL_BMA250_I2C_MODULE, pCmdData[*pIndex].data);
break;
case ACCEL_CMD_EN_RX:
PLIB_I2C_MasterReceiverClock1Byte(ACCEL_BMA250_I2C_MODULE);
break;
case ACCEL_CMD_RX_BYTE:
// **pRxBuffer = PLIB_I2C_ReceivedByteGet(ACCEL_BMA250_I2C_MODULE);
// (*pRxBuffer)++;
*pRxBuffer = PLIB_I2C_ReceivedByteGet(ACCEL_BMA250_I2C_MODULE);
pRxBuffer++;
break;
case ACCEL_CMD_ACK:
PLIB_I2C_ReceivedByteAcknowledge(ACCEL_BMA250_I2C_MODULE, pCmdData[*pIndex].data);
break;
case ACCEL_CMD_ACK_POLL:
polling = ACCEL_TRUE;
if(!PLIB_I2C_TransmitterByteWasAcknowledged(ACCEL_BMA250_I2C_MODULE))
{
(*pIndex) -= 4;
}
break;
default:
accelData[*pIndex].cmd = ACCEL_DONE;
case ACCEL_DONE:
#ifndef ACCEL_USE_EXTERNAL_INTERUPT_HANDLER
SYS_INT_SourceDisable(ACCEL_BMA250_I2C_SOURCE);
accelData[0].cmd = ACCEL_DONE;
break;
#else
*pIndex = ACCEL_INVALID_IDX;
return;
#endif
}
SYS_INT_SourceStatusClear(ACCEL_BMA250_I2C_SOURCE);
if(pCmdData[*pIndex].cmd != ACCEL_DONE)
{
if((pCmdData[*pIndex].cmd == ACCEL_CMD_RX_BYTE) || (polling))
{
SYS_INT_SourceStatusSet(ACCEL_BMA250_I2C_SOURCE);
}
(*pIndex)++;
}else
{
*pIndex = ACCEL_INVALID_IDX;
I2CPriority = FREE_PRIORITY;
}
}
}