__interrupt void dma_IRQ (void){
INT_GLOBAL_ENABLE(INT_OFF); // Stop all other interrupts
DMAIF = 0; // Clear the main CPU interrupt flag
INT_SETFLAG(INUM_DMA, INT_CLR); // Clear the DMA IRQ flag
INT_GLOBAL_ENABLE(INT_ON); // Re-enable interrupts
}
__interrupt void dma_IRQ (void){
BYTE clearedFlags = 0x00;
INT_GLOBAL_ENABLE(INT_OFF);
// Handle each channel
if ((DMAIRQ & DMA_CHANNEL_0) && dmaTable[0].callBackFunction) { clearedFlags |= DMA_CHANNEL_0; dmaTable[0].callBackFunction(); }
if ((DMAIRQ & DMA_CHANNEL_1) && dmaTable[1].callBackFunction) { clearedFlags |= DMA_CHANNEL_1; dmaTable[1].callBackFunction(); }
if ((DMAIRQ & DMA_CHANNEL_2) && dmaTable[2].callBackFunction) { clearedFlags |= DMA_CHANNEL_2; dmaTable[2].callBackFunction(); }
if ((DMAIRQ & DMA_CHANNEL_3) && dmaTable[3].callBackFunction) { clearedFlags |= DMA_CHANNEL_3; dmaTable[3].callBackFunction(); }
if ((DMAIRQ & DMA_CHANNEL_4) && dmaTable[4].callBackFunction) { clearedFlags |= DMA_CHANNEL_4; dmaTable[4].callBackFunction(); }
// Clear the flags
INT_SETFLAG(INUM_DMA, INT_CLR);
DMAIRQ = ~clearedFlags;
INT_GLOBAL_ENABLE(INT_ON);
}
__interrupt void spp_rf_IRQ(void)
{
BYTE enabledAndActiveInterrupt;
INT_GLOBAL_ENABLE(INT_OFF);
enabledAndActiveInterrupt = RFIF;
RFIF = 0x00; // Clear all interrupt flags
INT_SETFLAG(INUM_RF, INT_CLR); // Clear MCU interrupt flag
enabledAndActiveInterrupt &= RFIM;
// Start of frame delimiter (SFD)
if(enabledAndActiveInterrupt & IRQ_SFD)
{
if(sppRxStatus == RX_WAIT)
{
sppRxStatus = RX_IN_PROGRESS;
RFIM &= ~IRQ_SFD;
}
}
// Transmission of a packet is finished. Enabling reception of ACK if required.
if(enabledAndActiveInterrupt & IRQ_DONE)
{
if(sppTxStatus == TX_IN_PROGRESS)
{
if(pAckData == NULL)
{
sppTxStatus = TX_SUCCESSFUL;
}
else
{
DMA_ARM_CHANNEL(dmaNumberRx);
}
}
// Clearing the tx done interrupt enable
RFIM &= ~IRQ_DONE;
}
INT_GLOBAL_ENABLE(INT_ON);
}
//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
void culTimer4AdmReset(BYTE entry){
BYTE status;
// Storing the interrupt enable register, and turning off interrupts
status = IEN0;
INT_GLOBAL_ENABLE(INT_OFF);
// Setting up the table.
timer4Table[entry].counter = 0;
// Restoring the interrupt enable status.
IEN0 = status;
return;
} // ends culTimer4AdmClear(...)
/******************************************************************************
* @fn initStopWatch
*
* @brief
* Initializes components for the stopwatch application example.
*
* Parameters:
*
* @param void
*
* @return void
*
******************************************************************************/
void initStopWatch(void)
{
//interrupts[INUM_T3] = stop_watch_T3_IRQ;
INIT_GLED();
SET_MAIN_CLOCK_SOURCE(CRYSTAL);
CLKCON &= ~0x38;
// Enabling overflow interrupt from timer 3
TIMER34_INIT(3);
halSetTimer34Period(3, 1000);
INT_ENABLE(INUM_T3, INT_ON);
TIMER34_ENABLE_OVERFLOW_INT(3,INT_ON);
INT_GLOBAL_ENABLE(INT_ON);
}
//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
DMA_DESC* culDmaAllocChannel(UINT8* pDmaChannelNumber, FUNCTION* callBackFunction) {
DMA_DESC* dmaDesc;
BYTE savedIntEnable = 0x00;
INT8 i;
// Checking for an unassigned DMA channel
for(i = 1; i <= DMA_ADM_NUMBER_OF_CHANNELS; i++) {
if(dmaTable[i].assigned == FALSE) {
break;
}
}
// If no channel is available, the function returns.
if(i > DMA_ADM_NUMBER_OF_CHANNELS) {
*pDmaChannelNumber = 0x00;
dmaDesc = NULL;
}
// An available table entry was found
else {
// Deactivating the channel and erasing old interrupt flag
DMA_ABORT_CHANNEL(i);
DMAIRQ &= ~(1 << i);
// Storing interrupt enable register and turning off interrupts.
savedIntEnable = IEN0;
INT_GLOBAL_ENABLE(INT_OFF);
// Reserving the DMA channel.
dmaTable[i].assigned = TRUE;
dmaTable[i].callBackFunction = callBackFunction;
*pDmaChannelNumber = i;
// Restoring old interrupt enable register.
IEN0 = savedIntEnable;
dmaDesc = &dmaChannel1to4[i-1];
}
// Returning pointer to the DMA descriptor
return dmaDesc;
} // ends culDmaAlloc()
//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
BYTE culTimer4AdmSet(DWORD timeout, FUNCTION* callBackFunction){
BYTE status = 0x00;
BYTE i = 0x00;
// Checking the arguments...
if((timeout == 0) || (callBackFunction == NULL)){
return 0xFF;
}
status = IEN0;
INT_GLOBAL_ENABLE(INT_OFF);
// Searching for an available entry in the table.
for(i = 0; i < TIMER_ADM_TABLE_LENGTH; i++){
if(timer4Table[i].timeout == 0){
// Storing the interrupt enable register, and turning off interrupts
// Setting up the table.
timer4Table[i].timeout = timeout;
timer4Table[i].counter = 0;
timer4Table[i].callBackFunction = callBackFunction;
break;
}
}
// Restoring the interrupt enable status.
IEN0 = status;
if(i < TIMER_ADM_TABLE_LENGTH )
{
return i;
}
else
{
// No available entry in the table, returning error value
return 0xFF;
}
} // ends culTimer4AdmSet(...)
////////////////////////////////////////////////////////////////////////////////
/// @brief Application main function.
////////////////////////////////////////////////////////////////////////////////
void main(void) {
// Initializations
SET_MAIN_CLOCK_SOURCE(CRYSTAL);
SET_MAIN_CLOCK_SPEED(MHZ_26);
CLKCON = (CLKCON & 0xC7);
init_peripherals();
P0 &= ~0x40; // Pulse the Codec Reset line (high to low, low to high)
P0 |= 0x40;
init_codec(); // Initilize the Codec
INT_SETFLAG(INUM_DMA, INT_CLR); // clear the DMA interrupt flag
I2SCFG0 |= 0x01; // Enable the I2S interface
DMA_SET_ADDR_DESC0(&DmaDesc0); // Set up DMA configuration table for channel 0
DMA_SET_ADDR_DESC1234(&DmaDesc1_4[0]); // Set up DMA configuration table for channels 1 - 4
dmaMemtoMem(AF_BUF_SIZE); // Set up DMA Channel 0 for memmory to memory data transfers
initRf(); // Set radio base frequency and reserve DMA channels 1 and 2 for RX/TX buffers
dmaAudio(); // Set up DMA channels 3 and 4 for the Audio In/Out buffers
DMAIRQ = 0;
DMA_ARM_CHANNEL(4); // Arm DMA channel 4
macTimer3Init();
INT_ENABLE(INUM_T1, INT_ON); // Enable Timer 1 interrupts
INT_ENABLE(INUM_DMA, INT_ON); // Enable DMA interrupts
INT_GLOBAL_ENABLE(INT_ON); // Enable Global interrupts
MAStxData.macPayloadLen = TX_PAYLOAD_LEN;
MAStxData.macField = MAC_ADDR;
while (1) { // main program loop
setChannel(channel[band][ActiveChIdx]); // SetChannel will set the MARCSTATE to IDLE
ActiveChIdx = (ActiveChIdx + 1) & 0x03;
SCAL(); // Start PLL calibration at new channel
if ((P1 & 0x08) != aux_option_status) { // if the 'SEL AUX IN' option bit has changed state
if ((P1 & 0x08) == 0) { // SEL AUX IN has changed state to true
I2Cwrite(MIC1LP_LEFTADC, 0xFC); // Disconnect MIC1LP/M from the Left ADC, Leave Left DAC enabled
I2Cwrite(MIC2L_MIC2R_LEFTADC, 0x2F); // Connect AUX In (MIC2L) to Left ADC
I2Cwrite(LEFT_ADC_PGA_GAIN, 0x00); // Set PGA gain to 0 dB
aux_option_status &= ~0x08;
}
else { // SEL AUX IN has changed state to false
I2Cwrite(MIC2L_MIC2R_LEFTADC, 0xFF); // Disconnect AUX In (MIC2L) from Left ADC
I2Cwrite(MIC1LP_LEFTADC, 0x84); // Connect the internal microphone to the Left ADC using differential inputs (gain = 0 dB); Power Up the Left ADC
I2Cwrite(LEFT_ADC_PGA_GAIN, 0x3C); // Enable PGA and set gain to 30 dB
aux_option_status |= 0x08;
}
}
if ((P1 & 0x04) != agc_option_status) { // if the 'ENA AGC' option bit has changed state
if ((P1 & 0x04) == 0) { // ENA AGC has changed state to true
I2Cwrite(LEFT_AGC_CNTRL_A, 0x90); // Left AGC Control Register A - Enable, set target level to -8 dB
I2Cwrite(LEFT_AGC_CNTRL_B, 0xC8); // Left AGC Control Register B - Set maximum gain to to 50 dB
I2Cwrite(LEFT_AGC_CNTRL_C, 0x00); // Left AGC Control Register C - Disable Silence Detection
agc_option_status &= ~0x04;
}
else { // SEL AUX IN has changed state to false
I2Cwrite(LEFT_AGC_CNTRL_A, 0x10); // Left AGC Control Register A - Disable
agc_option_status |= 0x04;
}
}
// Check the band selection bits
band = 2; // if the switch is not in position 1 or 2, in must be in position 3
if ((P1 & 0x10) == 0) // check if switch is in position 1
band = 0;
else if ((P0 & 0x04) == 0) // check if switch is in position 2
band = 1;
// Now wait for the "audio frame ready" signal
while (audioFrameReady == FALSE); // Wait until an audioframe is ready to be transmitted
audioFrameReady = FALSE; // Reset the flag
// Move data from the CODEC (audioOut) buffer to the TX buffer using DMA Channel 0
SET_WORD(DmaDesc0.SRCADDRH, DmaDesc0.SRCADDRL, audioOut[activeOut]);
SET_WORD(DmaDesc0.DESTADDRH, DmaDesc0.DESTADDRL, MAStxData.payload);
DmaDesc0.SRCINC = SRCINC_1; // Increment Source address
DMAARM |= DMA_CHANNEL_0;
DMAREQ |= DMA_CHANNEL_0; // Enable memory-to-memory transfer using DMA channel 0
while ((DMAARM & DMA_CHANNEL_0) > 0); // Wait for transfer to complete
while (MARCSTATE != 0x01); // Wait for calibration to complete
P2 |= 0x08; // Debug - Set P2_3 (TP2)
rfSendPacket(MASTER_TX_TIMEOUT_WO_CALIB);
P2 &= ~0x08; // Debug - Reset P2_3 (TP2)
} // end of 'while (1)' loop
}
//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
BYTE sppSend(SPP_STRUCT* pPacketPointer){
BYTE res = TRUE;
// Checking that length is not too long
if (pPacketPointer->payloadLength > SPP_MAX_PAYLOAD_LENGTH)
{
res = TOO_LONG;
sppTxStatus = TX_IDLE;
}
// Flipping the sequence bit, writing total packet length and address if the transfer is not a retransmission.
// If it is a retransmission, the fields are correct
if(!(pPacketPointer->flags & RETRANSMISSION))
{
pPacketPointer->flags ^= SEQUENCE_BIT;
pPacketPointer->payloadLength += SPP_HEADER_AND_FOOTER_LENGTH;
pPacketPointer->srcAddress = myAddress;
}
// Setting up the DMA
DMA_ABORT_CHANNEL(dmaNumberTx);
SET_DMA_SOURCE(dmaTx,pPacketPointer);
// Proceed if the packet length is OK.
if (res == TRUE)
{
// Clearing RF interrupt flags and enabling RF interrupts.
RFIF &= ~IRQ_DONE;
RFIM &= ~IRQ_SFD;
INT_SETFLAG(INUM_RF, INT_CLR);
#ifdef CCA_ENABLE
if(!CCA)
{
SRX();
// Turning on Rx and waiting to make the RSSI value become valid.
halWait(1);
}
if(CCA)
#endif
{ // Setting up radio
DMA_ABORT_CHANNEL(dmaNumberRx);
SIDLE();
RFTXRXIF = 0;
INT_GLOBAL_ENABLE(FALSE);
DMA_ARM_CHANNEL(dmaNumberTx);
STX();
INT_GLOBAL_ENABLE(TRUE);
sppTxStatus = TX_IN_PROGRESS;
if(pPacketPointer->flags & DO_ACK)
{
pAckData = pPacketPointer;
waitForAck();
}
else
{
pAckData = NULL;
}
RFIM |= IRQ_DONE;
}
#ifdef CCA_ENABLE
// The "air" is busy
else
{
res = CHANNEL_BUSY;
RFIM &= ~IRQ_DONE;
// De-flipping the sequence bit.
if(!(pPacketPointer->flags & RETRANSMISSION))
{
pPacketPointer->flags ^= SEQUENCE_BIT;
}
}
#endif
}
return res;
} // ends sppSend
void stop_watch_main(void){
#else
void main(void){
#endif
STATE state = START_STATE;
initStopWatch();
TIMER3_RUN(FALSE);
ClearScreen();
Print(0,5,"--STOP WATCH--",1);
Rectangle(2 , 4 , 108 , 7);
while(!stopApplication()){
switch (state)
{
case START_STATE:
{
t.h = t.m = t.s = 0;
overflow = 0;
printTime();
if(LanguageSel == 1)
{
Print6(2,10," OK for START ",1);
}
else
{
Print(2,8,"按OK键开始:",1);
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
TIMER3_RUN(TRUE);
state = RUN_STATE;
if(LanguageSel == 1)
{
Print6(2,10," OK for STOP ",1);
}
else
{
Print(2,8,"按OK键停止:",1);
}
}
}break;
case RUN_STATE:
{
INT_GLOBAL_ENABLE(INT_OFF);
if(overflow > 0 && overflow < 0x09)
{
GLED = LED_ON;
}
else if(overflow > (UINT16)1000)
{
//overflow = 0;
overflow -= 1000;
incrementTime();
printTime();
}
else
{
GLED = LED_OFF;
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
TIMER3_RUN(FALSE);
state = STOP_STATE;
GLED = LED_OFF;
}
INT_GLOBAL_ENABLE(INT_ON);
}break;
case STOP_STATE:
{
printTime();
if(LanguageSel == 1)
{
Print6(2,10," Total time is:",1);
}
else
{
Print(2,8,"总计时间为:",1);
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
state = START_STATE;
}
}break;
default:
break;
}
}
while(ScanKey() != 0xff);
halWait(5);
INT_GLOBAL_ENABLE(INT_OFF);
return;
}
void flash_main(void){
#else
void main(void){
#endif
BYTE buffer[30];
char inputBuffer[STRING_LENGTH];
INT8 pointer = 0;
BOOL stop = FALSE;
BOOL write = FALSE;
char c;
char *menuText[] = {(char*)" CPU write?", (char*)" DMA write?"};
BYTE command;
BOOL unUsed;
initFlash();
// Clearing buffers
memset(buffer,0,sizeof(buffer));
memset(inputBuffer,0,sizeof(inputBuffer));
// Setting up UART
UART_SETUP(0,57600,HIGH_STOP);
UTX0IF = 1; // Set UART 0 TX interrupt flag
while(getJoystickDirection() != CENTRED);
//Displaying the stored flash message.
lcdUpdateLine(LINE1,(char*)"Last written:");
if((unUsed = flashUnused((BYTE*)testData, STRING_LENGTH)))
{
lcdUpdateLine(LINE2,(char*)"Unused");
}
else
{
scrollText((char*) testData, STRING_LENGTH);
}
while(getJoystickDirection() != CENTRED);
while(getJoystickDirection() == CENTRED);
while(getJoystickDirection() != CENTRED);
// User decides whether to use CPU or DMA to write flash or to abort.
command = lcdMenu(menuText,2);
if(command == ABORT_MENU)
{
return;
}
// Uart communication
lcdUpdate((char*)"Enter UART", (char*)"data");
printf((char*)"\n\nFlash Programming\n");
printf((char*)"Press a key\n\n");
uartGetkey (); // wait for a key to be pressed or the application to be ended
if (stopApplication() ) return;
else
{
inputBuffer[0] = U0DBUF;
halWait(5);
USART0_FLUSH();
inputBuffer[1] = U0DBUF;
}
// Printing the previously written data
printf((char*)"\nLast written:\n");
if(unUsed)
{
printf((char*)"Unused\n");
}
else
{
printf((char*)"%s\n",&testData);
}
//Aquiring new data:
printf((char*)"\n\nType data to be written.\nWill be printed to the LCD next time.");
printf((char*)"\n(ENTER: store in flash, ESC: abort)\n\n");
memset(inputBuffer,0,STRING_LENGTH);
while(!stop)
{
c = getkey();
U0DBUF = c;
switch (c){
case ENTER:
inputBuffer[pointer] = 0;
printf((char*)"\n\nTo write: %s\nENTER if OK.\n",inputBuffer);
if(getkey() == ENTER)
{
// Write data to flash;
stop = TRUE;
write = TRUE;
}
else
{
// Reaquire data.
printf((char*)"\nEnter text:\n");
pointer = 0;
}
break;
case BACK_SPACE:
// Erasing the last typed data.
if (pointer > 0)
{
pointer--;
inputBuffer[pointer] = ' ';
}
break;
case ESC:
// Abort Flash write.
stop = TRUE;
write = FALSE;
break;
default:
// Add typed data to buffer.
if (pointer < STRING_LENGTH-1)
{
inputBuffer[pointer] = c;
pointer++;
}
break;
}
}
INT_GLOBAL_ENABLE(INT_OFF);
// Updating the flash if asked to.
if(write == TRUE)
{
if(command == 0)
{
halFlashWritePage((BYTE*) &inputBuffer, buffer, PAGE_NUMBER);
}
else
{
writeFlashUsingDMA((BYTE*) &inputBuffer, STRING_LENGTH, PAGE_ADDRESS, TRUE);
}
printf((char*)"\nUpdated:");
printf((char*)" %s\n",(char __code*) (PAGE_NUMBER << 10));
lcdUpdateLine(LINE1,(char*)"Updated");
}
else
{
printf((char*)"\nNot updated\n");
lcdUpdateLine(LINE1,(char*)"Not updated");
}
lcdUpdateLine(LINE2,(char*)"LEFT to continue");
// Done
haltApplicationWithLED();
return;
}
/******************************************************************************
* @fn writeFlashUsingDMA
*
* @brief
* Writes data to flash using DMA. Erases the page in advance if told to.
*
* Parameters:
*
* @param BYTE* pSrcAddr
* The start of the data to be written to flash.
*
* INT16 length
* The number of bytes to be written to flash.
*
* WORD flashAddress
* The address in flash the data is to be written to.
*
* BOOL erase
* Indicating whether the flash is to be erased or not.
*
* @return void
*
******************************************************************************/
void writeFlashUsingDMA(BYTE* pSrcAddr, INT16 length, WORD flashAddress, BOOL erase)
{
BYTE buffer[10];
INT_GLOBAL_ENABLE(INT_OFF);
// Setting up the flash address,
// erasing the page if required.
SET_WORD(FADDRH, FADDRL, (int)(flashAddress >> 1));
if(erase == TRUE)
{
halFlashErasePage(buffer, PAGE_NUMBER);
}
halWait(0xFF);
// Making sure a multiplum of 4 bytes is transferred.
while(length & 0x0003){
length++;
}
SET_WORD(dmaChannel.SRCADDRH, dmaChannel.SRCADDRL, pSrcAddr); // The start address of the segment
SET_WORD(dmaChannel.DESTADDRH, dmaChannel.DESTADDRL, &X_FWDATA); // Input of the AES module
SET_WORD(dmaChannel.LENH, dmaChannel.LENL, length); // Setting the length of the transfer (bytes)
dmaChannel.VLEN = VLEN_USE_LEN; // Using the length field
dmaChannel.PRIORITY = PRI_LOW; // High priority
dmaChannel.M8 = M8_USE_8_BITS; // Transferring all 8 bits in each byte.
dmaChannel.IRQMASK = FALSE; // The DMA complete interrupt flag is set at completion.
dmaChannel.DESTINC = DESTINC_0; // The destination address is constant
dmaChannel.SRCINC = SRCINC_1; // The address for data fetch is inremented by 1 byte
dmaChannel.TRIG = DMATRIG_FLASH; // Setting the FLASH module to generate the DMA trigger
dmaChannel.TMODE = TMODE_SINGLE; // A single byte is transferred each time.
dmaChannel.WORDSIZE = WORDSIZE_BYTE; // Set to count bytes.
// Setting up the DMA.
// Clearing all DMA complete flags and arming the channel.
DMA_SET_ADDR_DESC0(&dmaChannel);
DMA_ABORT_CHANNEL(0);
DMAIRQ &= ~DMA_CHANNEL_0;
DMA_ARM_CHANNEL(0);
asm("NOP");
// Starting to write
FLASH_CONFIG(WRITE);
// Waiting for the DMA to finish.
while(!(DMAIRQ & DMA_CHANNEL_0));
DMAIRQ &= ~DMA_CHANNEL_0;
return;
}