/**
* \brief Writes or reads the QSPI memory (0x80000000) to transmit or
* receive data from Flash memory
* \param pQspi Pointer to an Qspi instance.
* \param ReadWrite Flag to indicate read/write QSPI memory access
*
* \return Returns 1 if At least one instruction end has been detected since
* the last read of QSPI_SR.; otherwise returns 0.
*/
QspidStatus_t QSPI_ReadWriteMem(Qspid_t *pQspid, Access_t const ReadWrite)
{
QspidStatus_t Status = QSPI_UNKNOWN_ERROR;
QspiInstFrame_t *const pFrame = pQspid->pQspiFrame;
uint32_t *pQspiMem = (uint32_t *)(QSPIMEM_ADDR | pFrame->Addr);
QspiBuffer_t pBuffer = pQspid->qspiBuffer;
assert(((ReadWrite > CmdAccess)
&& (ReadWrite <= WriteAccess)) ? true : false);
if (ReadWrite == WriteAccess)
memcpy(pQspiMem, pBuffer.pDataTx , pBuffer.TxDataSize);
else
memcpy(pBuffer.pDataRx, pQspiMem, pBuffer.RxDataSize);
memory_sync();
QSPI_EndTransfer(pQspid->pQspiHw);
// End transmission after all data has been sent
while (!(pQspid->pQspiHw->QSPI_SR & QSPI_SR_INSTRE));
// poll CR reg to know status if instruction has end
Status = QSPI_SUCCESS;
return Status;
}
/**
* \brief Send instruction over QSPI to read data
*
* \param pQspi Pointer to an Qspi instance.
* \param KeepCfg To keep Instruction from value or resets to zero
*
* \return Returns 1 if At least one instruction end has been detected
* since the last read of QSPI_SR.; otherwise returns 0.
*/
QspidStatus_t QSPI_ReadCommand(Qspid_t *pQspid, uint8_t const KeepCfg)
{
QspiInstFrame_t *const pFrame = pQspid->pQspiFrame;
QspiMemCmd_t pCommand = pQspid->qspiCommand;
QspiBuffer_t pBuffer = pQspid->qspiBuffer;
uint32_t *pQspiBuffer = (uint32_t *)QSPIMEM_ADDR;
QspidStatus_t Status = QSPI_UNKNOWN_ERROR;
assert(pBuffer.pDataRx);
QSPI_SetInst(pQspid->pQspiHw, (pCommand.Instruction & 0xFF),
(pCommand.Option & 0xFF));
QSPI_SetInstFrame(pQspid->pQspiHw, pFrame);
QSPI_GetInstFrame(pQspid->pQspiHw);
// to synchronize system bus accesses
if (!KeepCfg)
pFrame->InstFrame.val = 0;
memcpy(pBuffer.pDataRx , pQspiBuffer, pBuffer.RxDataSize);
memory_sync();
QSPI_EndTransfer(pQspid->pQspiHw);
// End transmission after all data has been sent
while (!(pQspid->pQspiHw->QSPI_SR & QSPI_SR_INSTRE));
// poll CR reg to know status if instruction has end
return Status;
}
/**
* \brief Process successfully sent packets
* \param pGmacd Pointer to GMAC Driver instance.
*/
static void GMACD_TxCompleteHandler(sGmacd *pGmacd, gmacQueList_t qId)
{
Gmac *pHw = pGmacd->pHw;
sGmacTxDescriptor *pTxTd;
fGmacdTransferCallback fTxCb;
uint32_t tsr;
/* Clear status */
tsr = GMAC_GetTxStatus(pHw);
GMAC_ClearTxStatus(pHw, tsr);
while (!GCIRC_EMPTY(
pGmacd->queueList[qId].wTxHead, pGmacd->queueList[qId].wTxTail)) {
pTxTd = &pGmacd->queueList[qId].pTxD[pGmacd->queueList[qId].wTxTail];
/* Make hw descriptor updates visible to CPU */
GMAC_CACHE_COHERENCE
/* Exit if frame has not been sent yet:
* On TX completion, the GMAC set the USED bit only into the
* very first buffer descriptor of the sent frame.
* Otherwise it updates this descriptor with status error bits.
* This is the descriptor write back.
*/
if ((pTxTd->status.val & GMAC_TX_USED_BIT) == 0)
break;
/* Process all buffers of the current transmitted frame */
while ((pTxTd->status.val & GMAC_TX_LAST_BUFFER_BIT) == 0) {
GCIRC_INC(pGmacd->queueList[qId].wTxTail,
pGmacd->queueList[qId].wTxListSize);
pTxTd = &pGmacd->queueList[qId].pTxD[pGmacd->queueList[qId].wTxTail];
memory_sync();
}
/* Notify upper layer that a frame has been sent */
fTxCb = pGmacd->queueList[qId].fTxCbList[pGmacd->queueList[qId].wTxTail];
if (fTxCb)
fTxCb(tsr);
/* Go to next frame */
GCIRC_INC(pGmacd->queueList[qId].wTxTail, pGmacd->queueList[qId].wTxListSize);
}
/* If a wakeup has been scheduled, notify upper layer that it can
send other packets, send will be successful. */
if (pGmacd->queueList[qId].fWakupCb &&
GCIRC_SPACE(pGmacd->queueList[qId].wTxHead,
pGmacd->queueList[qId].wTxTail,
pGmacd->queueList[qId].wTxListSize) >=
pGmacd->queueList[qId].bWakeupThreshold)
pGmacd->queueList[qId].fWakupCb();
}
/**
* \brief SPI xDMA Rx callback
* Invoked on SPi DMA reception done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to Spid instance.
*/
static void QSPID_Spi_Cb(uint32_t channel, QspiDma_t *pArg)
{
Qspi *pQspiHw = pArg->Qspid.pQspiHw;
if (channel != pArg->RxChNum)
return;
/* Release the semaphore */
ReleaseMutex(pArg->progress);
QSPI_EndTransfer(pQspiHw);
SCB_InvalidateDCache_by_Addr((uint32_t *)pArg->Qspid.qspiBuffer.pDataRx,
pArg->Qspid.qspiBuffer.RxDataSize);
memory_sync();
}
/**
* \brief QSPI xDMA Tx callback
* Invoked on QSPi DMA Write done.
* \param channel DMA channel.
* \param pArg Pointer to callback argument - Pointer to Spid instance.
*/
static void QSPID_qspiTx_Cb(uint32_t channel, QspiDma_t *pArg)
{
Qspi *pQspiHw = pArg->Qspid.pQspiHw;
if (channel != pArg->TxChNum)
return;
/* Release the semaphore */
ReleaseMutex(pArg->progress);
QSPI_EndTransfer(pQspiHw);
while (!QSPI_GetStatus(pArg->Qspid.pQspiHw, IsEofInst));
memory_sync();
}
/**
* \brief Start DMA sending/waiting data.
*/
static void _SscDma(volatile uint32_t *pReg, uint32_t dmaChannel,
void *pBuffer, uint16_t wSize)
{
sXdmad *pDmad = &dmad;
sXdmadCfg xdmadCfg;
xdmadCfg.mbr_ubc = wSize;
xdmadCfg.mbr_sa = (uint32_t) pBuffer;
xdmadCfg.mbr_da = (uint32_t) pReg;
xdmadCfg.mbr_cfg = XDMAC_CC_TYPE_PER_TRAN
| XDMAC_CC_MBSIZE_SINGLE
| XDMAC_CC_DSYNC_MEM2PER
| XDMAC_CC_CSIZE_CHK_1
| XDMAC_CC_DWIDTH_HALFWORD
| XDMAC_CC_SIF_AHB_IF1
| XDMAC_CC_DIF_AHB_IF1
| XDMAC_CC_SAM_INCREMENTED_AM
| XDMAC_CC_DAM_FIXED_AM
| XDMAC_CC_PERID(XDMAIF_Get_ChannelNumber(
ID_SSC, XDMAD_TRANSFER_TX));
xdmadCfg.mbr_bc = 0;
xdmadCfg.mbr_ds = 0;
xdmadCfg.mbr_sus = 0;
xdmadCfg.mbr_dus = 0;
memory_sync();
XDMAD_ConfigureTransfer(pDmad, dmaChannel, &xdmadCfg, 0, 0, (
XDMAC_CIE_BIE |
XDMAC_CIE_DIE |
XDMAC_CIE_FIE |
XDMAC_CIE_RBIE |
XDMAC_CIE_WBIE |
XDMAC_CIE_ROIE));
SCB_CleanDCache_by_Addr((uint32_t *)pBuffer, wSize);
XDMAD_StartTransfer(pDmad, dmaChannel);
SSC_EnableTransmitter(SSC);
}
/**
* \brief Send an instruction over QSPI (oly a flash command no data)
*
* \param pQspi Pointer to an Qspi instance.
* \param KeepCfg To keep Instruction fram value or restes to zero
*
* \return Returns 1 if At least one instruction end has been detected since
* the last read of QSPI_SR.; otherwise
* returns 0.
*/
QspidStatus_t QSPI_SendCommand(Qspid_t *pQspid, uint8_t const KeepCfg)
{
QspiInstFrame_t *const pFrame = pQspid->pQspiFrame;
QspiMemCmd_t pCommand = pQspid->qspiCommand;
QspidStatus_t Status = QSPI_UNKNOWN_ERROR;
if (pFrame->InstFrame.bm.bAddrEn)
QSPI_SetInstAddr(pQspid->pQspiHw, pFrame->Addr);
QSPI_SetInst(pQspid->pQspiHw, (pCommand.Instruction & 0xFF),
((pCommand.Option >> QSPI_ICR_OPT_Pos) & 0xFF));
QSPI_SetInstFrame(pQspid->pQspiHw, pFrame);
memory_sync();
while (!(pQspid->pQspiHw->QSPI_SR & QSPI_SR_INSTRE));
// poll CR reg to know status if instruction has end
if (!KeepCfg)
pFrame->InstFrame.val = 0;
return Status;
}
/**
* \brief usart-hw-handshaking Application entry point..
*
* Configures USART in hardware handshaking mode and
* Timer Counter 0 to generate an interrupt every second. Then, start the first
* transfer on the USART and wait in an endless loop.
*
* \return Unused (ANSI-C compatibility).
*/
int main( void )
{
char pbaud_time[8];
uint32_t BytesRead, BytesToRead, baudrate, timeout, TxBytesLeft;
uint8_t AppBufferRollOver = 0;
uint8_t *pTxBuff;
/* Disable watchdog*/
WDT_Disable(WDT);
printf("-- USART Hardware Handshaking Example %s --\n\r", SOFTPACK_VERSION);
printf("-- %s\n\r", BOARD_NAME);
printf("-- Compiled: %s %s With %s--\n\r", __DATE__, __TIME__, COMPILER_NAME);
/* Enable I and D cache */
SCB_EnableICache();
SCB_EnableDCache();
/* Configure USART pins*/
PIO_Configure(pins, PIO_LISTSIZE(pins));
/* Configure systick for 1 ms. */
TimeTick_Configure();
NVIC_SetPriority(XDMAC_IRQn , XDMA_NVIC_PRIO);
printf("\n\rEnter required baudrate:");
gets(pbaud_time);
baudrate = (atoi(pbaud_time)) ? (atoi(pbaud_time)): 921600;
printf("\n\rEnter required timeout (in microsec):");
gets(pbaud_time);
timeout = atoi(pbaud_time);
if (timeout > 1000) {
timeout /= 1000;
timeout = ((timeout * baudrate) / 1000);
} else {
timeout = (timeout * baudrate) / 1000000;
}
timeout = (timeout) ? ((timeout > MAX_RX_TIMEOUT) ? MAX_RX_TIMEOUT : timeout) \
: MAX_RX_TIMEOUT;
printf("\n\r");
/* Configure USART */
_ConfigureUsart(baudrate, timeout);
printf("\n\r");
/*Enable Rx channel of USART */
USARTD_EnableRxChannels(&Usartd, &UsartRx);
#ifdef FULL_DUPLEX
/*Enable Tx channel of USART */
USARTD_EnableTxChannels(&Usartd, &UsartTx);
#endif
/* Start receiving data and start timer*/
USARTD_RcvData(&Usartd);
/*Initialize Ring buffer */
pUsartBuffer = (RignBuffer_t *)malloc(sizeof(RignBuffer_t));
_initCircularBuffer(pUsartBuffer);
pTxBuff = &FirstAppBuff[0];
TxBytesLeft = 0;
#ifdef USE_MD5_CHECK
md5_init(&pms);
#endif //USE_MD5_CHECK
#ifdef FULL_DUPLEX
printf( "\n\r-I- USART is in Full Duplex mode \n\r");
#else
printf( "\n\r-I- USART is in Half Duplex mode \n\r");
#endif
printf( "\n\r-I- Please send a file to serial port (USART0) \n\r");
BytesToRead = MIN_FREE_BYTES; // Bytes to read from ring-buffer
while (1) {
#ifdef USE_MD5_CHECK
if (DBG_IsRxReady()) {
ch = DBG_GetChar();
if (ch == 'm') {
uint8_t i;
md5_finish(&pms, md5);
printf("\r\nmd5:");
for (i = 0; i < sizeof(md5);i++)
printf("%.2x",md5[i]);
printf("\r\n");
md5_init(&pms);
TotalbytesReceived = 0;
}
}
#endif
/* Check Application buffer (100 KB)overflow */
if (((PingPongBufferFlag == 0) &&
(pTxBuff+BytesToRead) >= &FirstAppBuff[APP_BUFFER]) ||
(( PingPongBufferFlag == 1) && (pTxBuff+BytesToRead) >=
&SecondAppBuff[APP_BUFFER])) {
AppBufferRollOver = 1;
// Roll over and start copying to the beginning of Application buffer to avoid errors
if (PingPongBufferFlag)
BytesToRead = (&SecondAppBuff[APP_BUFFER] - pTxBuff);
else
BytesToRead = (&FirstAppBuff[APP_BUFFER] - pTxBuff);
memory_barrier();
}
/* Read ring buffer */
BytesRead = RingBufferRead(pUsartBuffer, pTxBuff, BytesToRead);
memory_sync();
TxBytesLeft += BytesRead; // number of bytes to send via USART Tx
#ifdef USE_MD5_CHECK
if (BytesRead > 0)
md5_append(&pms,pTxBuff,BytesRead);
#endif
/* check if one of the application buffer is full and ready to send */
if (AppBufferRollOver && (TxBytesLeft == APP_BUFFER)) {
AppBufferRollOver = 0;
TxBytesLeft = 0;
BytesRead = 0;
BytesToRead = MIN_FREE_BYTES; // Bytes to read from ring-buffer
while (!UsartTx.dmaProgress);
if (PingPongBufferFlag) {
PingPongBufferFlag = 0;
pTxBuff = &FirstAppBuff[0];
} else {
PingPongBufferFlag = 1;
pTxBuff = &SecondAppBuff[0];
}
memory_sync();
#ifdef FULL_DUPLEX
USARTD_SendData(&Usartd);
#endif
}
/* otherwise keep storing in same application buffer from Rx DMA's ring
buffer */
else {
BytesToRead = MIN_FREE_BYTES; // Bytes to read from ring-buffer
pTxBuff += BytesRead;
#ifdef FULL_DUPLEX
/* Check for Tx timeout, if there is timeout then send the bytes left
(less than 100 KB) in application buffer */
if ((GetDelayInTicks(TimeOutTimer, GetTicks()) == USART_TX_TIMEOUT)
&& TxBytesLeft) {
// wait for any eventual USART Tx in progress
while (!UsartTx.dmaProgress);
FlushTxBuffer(TxBytesLeft);
TimeOutTimer = GetTicks();
PingPongBufferFlag = 0;
TxBytesLeft = 0;
BytesRead = 0;
BytesToRead = MIN_FREE_BYTES; // Bytes to read from ring-buffer
pTxBuff = &FirstAppBuff[0];
_UpdateTxConfig((uint32_t)&FirstAppBuff[0], APP_BUFFER);
TRACE_INFO_WP(" TX Tiemout \n\r");
}
#endif
}
}
}
/**
* \brief Ring buffer management
* This function copies data from ring buffer to application buffer with a given length.
* \param pBuff Usart Rx DMA ring buffer
* \param pDestination Usart application buffer
* \param Len Num of dat to copy from ring buffer
* \return function returns number of bytes read from ringbuffer
*
*/
static uint32_t RingBufferRead(RignBuffer_t *pBuff, uint8_t *pDestination, uint32_t Len)
{
uint32_t EndAddrs = ((uint32_t)pBuff->pBuffer + pBuff->BuffSize);
uint32_t UnreadCount = 0;
uint32_t EnableRTS = 0;
uint32_t TotalLen = 0;
uint32_t TailAddrs, BytesLeft;
/* If timeout has occurred then re calculate the unread number of bytes */
if (dmaflush) {
mutexTimeout = 0x7FF;
BASE_USART->US_CR = US_CR_RTSEN; // disable transmission
__disable_irq();
while (LockMutex(semaphore, mutexTimeout)); // lock mutex
_UpdateCount();
/* If Circular buffer has still free space to fill */
if (pBuff->Count < MAX_FREE_BYTES)
EnableRTS = US_CR_RTSDIS;
dmaflush = 0;
memory_sync();
ReleaseMutex(semaphore);
BASE_USART->US_CR = EnableRTS;
__enable_irq();
}
/* If there are unread bytes in ringbuffer then copy them to application
buffer */
if (pBuff->Count) {
UnreadCount = __LDREXW(&pBuff->Count); // unread bytes count
memory_barrier();
TotalLen = (Len > UnreadCount) ? UnreadCount : Len;
// if read length surpasses the ring buffer boundary, then loop over
if ((pBuff->pTail + TotalLen) >= EndAddrs) {
BytesLeft = (EndAddrs - pBuff->pTail);
memcpy( pDestination , (uint32_t *)pBuff->pTail, BytesLeft );
memcpy( (pDestination +(EndAddrs - pBuff->pTail)),
(uint32_t *)(pBuff->pBuffer), TotalLen - BytesLeft);
TailAddrs = ( (uint32_t)pBuff->pBuffer + (TotalLen - BytesLeft));
} else {
memcpy( pDestination , (uint32_t *)pBuff->pTail, TotalLen);
TailAddrs = pBuff->pTail + TotalLen;
}
/* In this part function enable the RTS signal to stop all reception
disable irq to enter in critical part gets a lock on semaphore
updates Tail pointer and count of ring buffer
check if RTS need to be disable to accept the data from host
frees the semaphore and enable irq*/
BASE_USART->US_CR = US_CR_RTSEN; // disable transmission
__disable_irq();
mutexTimeout = 0x7FF;
while (LockMutex(semaphore, mutexTimeout)); // lock mutex
pBuff->pTail = TailAddrs;
pBuff->Count -=TotalLen; // update count of ring buffer
TotalbytesReceived +=TotalLen;
memory_sync();
#ifdef FULL_DUPLEX
TimeOutTimer = GetTicks();
#endif
/* If Circular buffer is read completely */
if (pUsartBuffer->Count < MAX_FREE_BYTES)
EnableRTS = US_CR_RTSDIS;
ReleaseMutex(semaphore);
BASE_USART->US_CR = EnableRTS;
__enable_irq();
printf("\r Total bytes received 0x%x (%u)", \
(unsigned)TotalbytesReceived, (unsigned)TotalbytesReceived);
return TotalLen; // return the number of bytes
} else
return 0;
}
/**
* \brief Set up a memory region.
*/
void _SetupMemoryRegion( void )
{
uint32_t dwRegionBaseAddr;
uint32_t dwRegionAttr;
memory_barrier();
/***************************************************
ITCM memory region --- Normal
START_Addr:- 0x00000000UL
END_Addr:- 0x00400000UL
****************************************************/
dwRegionBaseAddr =
ITCM_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_ITCM_REGION; // 1
dwRegionAttr =
MPU_AP_PRIVILEGED_READ_WRITE |
MPU_CalMPURegionSize(ITCM_END_ADDRESS - ITCM_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
Internal flash memory region --- Normal read-only
(update to Strongly ordered in write accesses)
START_Addr:- 0x00400000UL
END_Addr:- 0x00600000UL
******************************************************/
dwRegionBaseAddr =
IFLASH_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_IFLASH_REGION; //2
dwRegionAttr =
MPU_AP_READONLY |
INNER_NORMAL_WB_NWA_TYPE( NON_SHAREABLE ) |
MPU_CalMPURegionSize(IFLASH_END_ADDRESS - IFLASH_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
DTCM memory region --- Normal
START_Addr:- 0x20000000L
END_Addr:- 0x20400000UL
******************************************************/
/* DTCM memory region */
dwRegionBaseAddr =
DTCM_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_DTCM_REGION; //3
dwRegionAttr =
MPU_AP_PRIVILEGED_READ_WRITE |
MPU_CalMPURegionSize(DTCM_END_ADDRESS - DTCM_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
SRAM Cacheable memory region --- Normal
START_Addr:- 0x20400000UL
END_Addr:- 0x2043FFFFUL
******************************************************/
/* SRAM memory region */
dwRegionBaseAddr =
SRAM_FIRST_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_SRAM_REGION_1; //4
dwRegionAttr =
MPU_AP_FULL_ACCESS |
INNER_NORMAL_WB_NWA_TYPE( NON_SHAREABLE ) |
MPU_CalMPURegionSize(SRAM_FIRST_END_ADDRESS - SRAM_FIRST_START_ADDRESS)
| MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
Internal SRAM second partition memory region --- Normal
START_Addr:- 0x20440000UL
END_Addr:- 0x2045FFFFUL
******************************************************/
/* SRAM memory region */
dwRegionBaseAddr =
SRAM_SECOND_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_SRAM_REGION_2; //5
dwRegionAttr =
MPU_AP_FULL_ACCESS |
INNER_NORMAL_WB_NWA_TYPE( NON_SHAREABLE ) |
MPU_CalMPURegionSize(SRAM_SECOND_END_ADDRESS - SRAM_SECOND_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
Peripheral memory region --- DEVICE Shareable
START_Addr:- 0x40000000UL
END_Addr:- 0x5FFFFFFFUL
******************************************************/
dwRegionBaseAddr =
PERIPHERALS_START_ADDRESS |
MPU_REGION_VALID |
MPU_PERIPHERALS_REGION; //6
dwRegionAttr = MPU_AP_FULL_ACCESS |
MPU_REGION_EXECUTE_NEVER |
SHAREABLE_DEVICE_TYPE |
MPU_CalMPURegionSize(PERIPHERALS_END_ADDRESS - PERIPHERALS_START_ADDRESS)
|MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
External EBI memory memory region --- Strongly Ordered
START_Addr:- 0x60000000UL
END_Addr:- 0x6FFFFFFFUL
******************************************************/
dwRegionBaseAddr =
EXT_EBI_START_ADDRESS |
MPU_REGION_VALID |
MPU_EXT_EBI_REGION;
dwRegionAttr =
MPU_AP_FULL_ACCESS |
/* External memory Must be defined with 'Device' or 'Strongly Ordered'
attribute for write accesses (AXI) */
STRONGLY_ORDERED_SHAREABLE_TYPE |
MPU_CalMPURegionSize(EXT_EBI_END_ADDRESS - EXT_EBI_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
SDRAM Cacheable memory region --- Normal
START_Addr:- 0x70000000UL
END_Addr:- 0x7FFFFFFFUL
******************************************************/
dwRegionBaseAddr =
SDRAM_START_ADDRESS |
MPU_REGION_VALID |
MPU_DEFAULT_SDRAM_REGION; //7
dwRegionAttr =
MPU_AP_FULL_ACCESS |
INNER_NORMAL_WB_RWA_TYPE( SHAREABLE ) |
MPU_CalMPURegionSize(SDRAM_END_ADDRESS - SDRAM_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
QSPI memory region --- Strongly ordered
START_Addr:- 0x80000000UL
END_Addr:- 0x9FFFFFFFUL
******************************************************/
dwRegionBaseAddr =
QSPI_START_ADDRESS |
MPU_REGION_VALID |
MPU_QSPIMEM_REGION; //8
dwRegionAttr =
MPU_AP_FULL_ACCESS |
STRONGLY_ORDERED_SHAREABLE_TYPE |
MPU_CalMPURegionSize(QSPI_END_ADDRESS - QSPI_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/****************************************************
USB RAM Memory region --- Device
START_Addr:- 0xA0100000UL
END_Addr:- 0xA01FFFFFUL
******************************************************/
dwRegionBaseAddr =
USBHSRAM_START_ADDRESS |
MPU_REGION_VALID |
MPU_USBHSRAM_REGION; //9
dwRegionAttr =
MPU_AP_FULL_ACCESS |
MPU_REGION_EXECUTE_NEVER |
SHAREABLE_DEVICE_TYPE |
MPU_CalMPURegionSize(USBHSRAM_END_ADDRESS - USBHSRAM_START_ADDRESS) |
MPU_REGION_ENABLE;
MPU_SetRegion( dwRegionBaseAddr, dwRegionAttr);
/* Enable the memory management fault , Bus Fault, Usage Fault exception */
SCB->SHCSR |= (SCB_SHCSR_MEMFAULTENA_Msk | SCB_SHCSR_BUSFAULTENA_Msk
| SCB_SHCSR_USGFAULTENA_Msk);
/* Enable the MPU region */
MPU_Enable( MPU_ENABLE | MPU_PRIVDEFENA);
memory_sync();
}