void UARTINtHandler(void)
{
uint32_t ui32Status;
ui32Status = UARTIntStatus(UART0_BASE, true); // Thuc hien lay trang thai ngat
UARTIntClear(UART0_BASE, ui32Status); //Xoa co ngat uart
while(UARTCharsAvail(UART0_BASE)) //Thuc hien cho ki tu
{
UARTCharPutNonBlocking(UART0_BASE, UARTCharGetNonBlocking(UART0_BASE)); //nhan ki tu
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2); //chop tat led
SysCtlDelay(SysCtlClockGet()/(1000*3)); //Thuc hien delay khoang 1ms
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0); //Tat LED
}
}
void UARTIntHandler()
{
u32 temp;
int c;
temp = UARTIntStatus(uart_base[ CON_UART_ID ], true);
UARTIntClear(uart_base[ CON_UART_ID ], temp);
while( UARTCharsAvail( uart_base[ CON_UART_ID ] ) )
{
c = UARTCharGetNonBlocking( uart_base[ CON_UART_ID ] );
buf_write( BUF_ID_UART, CON_UART_ID, ( t_buf_data* )&c );
}
}
/*
* @brief Wait and get a byte from UART/USB with interrupt disabled.
* Program is indefinitely blocked until there's an available byte.
*
* @return the byte value on success;
*/
int getSerialByte() {
uint32 i;
while (1) {
if (UARTCharsAvail(UART0_BASE)) {
return UARTCharGetNonBlocking(UART0_BASE);
}
systemDelayTenMicroSecond(1);
}
// Control should not reach here
return -1;
}
void UARTIntHandler(void) {
uint32_t ui32Status;
ui32Status = UARTIntStatus(UART0_BASE, true); //get interrupt status
UARTIntClear(UART0_BASE, ui32Status); //clear the asserted interrupts
while(UARTCharsAvail(UART0_BASE)) //loop while there are chars
{
car = UARTCharGetNonBlocking(UART0_BASE);
UARTCharPut(UART0_BASE, car);
//UARTCharPutNonBlocking(UART0_BASE, UARTCharGetNonBlocking(UART0_BASE)); //echo character
//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2); //blink LED
SysCtlDelay(SysCtlClockGet() / (1000 * 3)); //delay ~1 msec
//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0); //turn off LED
}
}
/**
* @brief Guarda los datos en el buffer del software.
*
* @return -
*
* Guardado de los datos del buffer de hardware en el buffer de
* software para su posterior tratamiento por la logica del usuario.
*/
static void fromHwFIFO(int nPort)
{
int n; /*Numero de huecos en el buffer de hardware*/
unsigned int l; /*Variable temporal donde se guardan los caracteres recibidos*/
n=nHuecosIn(nPort);
while(UARTCharsAvail(gs_ul_uarts_bases[nPort])&& (n-->0))
{
l=UARTCharGetNonBlocking(gs_ul_uarts_bases[nPort]);
gs_cu_uarts[nPort].inBuf[gs_cu_uarts[nPort].inHead]=(unsigned char)l;
gs_cu_uarts[nPort].inHead++;
if(gs_cu_uarts[nPort].inHead==BUFF_SIZE) gs_cu_uarts[nPort].inHead=0;
}
}
void UARTIntHandler1(void) {
int i, k = 0;
unsigned long ulStatus;
char temp_char = 0;
char before_temp_char = 0;
ulStatus = UARTIntStatus(UART1_BASE, true);
UARTIntClear(UART1_BASE, ulStatus);
while (UARTCharsAvail(UART1_BASE)) {
temp_char = UARTCharGetNonBlocking(UART1_BASE);
if ((temp_char != 0x0A) && (before_temp_char != 0x0D)) {
myIMU[count_start] = temp_char;
count_start++;
} else if ((temp_char == 0x0A) && (before_temp_char == 0x0D)) {
for (i = 0; i < count_start; i++) {
if (myIMU[i] == ',') {
size[index_j] = k;
index_j++;
k = 0;
} else if (myIMU[i] == '*') {
index_j = 0;
k = 0;
} else {
mydata[index_j][k] = myIMU[i];
k++;
}
}
memset(mydata_char, 0, sizeof(mydata_char));
strcpy(mydata_char[0], mydata[0]); //pitch
strcpy(mydata_char[1], mydata[1]);
strcpy(mydata_char[2], mydata[2]); //yaw
/*초기화*/
count_start = 0;
memset(size, 0, sizeof(size));
memset(myIMU, 0, sizeof(myIMU));
memset(mydata, 0, sizeof(mydata));
yaw = atoi(mydata_char[2]);
pitch = atoi(mydata_char[0]);
}
before_temp_char = temp_char;
}
}
int main(void)
{
FPUEnable();
led_Init();
button_Init();
can_Init();
pcsr_Init();
//can_SetLogging(0, 0x001, 0x3FF, LogHandler);
//uint8_t new_data[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
//uint8_t new_data_mask[] = { 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF };
//can_SetFiltering(0, 0x001, 0x3FF, new_data, new_data_mask);
//uint8_t data[] = { 0xFF, 0x00, 0xFF, 0x00, '\n' };
//pcsr_WriteData("READY!\r\n", 8);
while(UARTCharsAvail(UART2_BASE))
{
led_Byte(UARTCharGetNonBlocking(UART2_BASE));
}
while(1)
{
uint8_t buf[22];
pcsr_ReadData(buf, 1);
if(buf[0] == FUNCTION_LOG)
{
pcsr_ReadData(buf + 1, 5);
uint16_t arbid = buf[2] + (buf[3] << 8);
uint16_t arbid_mask = buf[4] + (buf[5] << 8);
can_SetLogging(buf[1], arbid, arbid_mask, LogHandler);
}
else if(buf[0] == FUNCTION_FILTER)
{
pcsr_ReadData(buf + 1, 21);
uint16_t arbid = buf[2] + (buf[3] << 8);
uint16_t arbid_mask = buf[4] + (buf[5] << 8);
can_SetFiltering(buf[1], arbid, arbid_mask, buf + 6, buf + 14);
}
else if(buf[0] == FUNCTION_RESET)
{
can_ResetFunctions();
//led_Byte(buf[0]);
}
}
}
void ISR_uartBt(void) {
unsigned long status;
unsigned long commandSize;
char byte;
status = UARTIntStatus(UARTBT_BASE, true);
UARTIntClear(UARTBT_BASE, status);
// Loop while there are characters in the receive FIFO.
while(UARTCharsAvail(UARTBT_BASE)) {
// Read the next character from the UART and write it back to the UART.
byte = UARTCharGetNonBlocking(UARTBT_BASE);
commandSize = CurrentCommandByte - CurrentCommandStartPointer;
if(byte == '\n' || commandSize==UARTBT_BUFFER_SIZE) { // \r is used to indicate end-of-command
if((CurrentCommandByte>CommandBuffer || CurrentCommandByte>(CommandBuffer + UARTBT_BUFFER_SIZE)) && *(CurrentCommandByte-1)=='\r') {
// Command ended with \r\n
LastCommandSize = commandSize - 1;
}
else {
// Command ended with \n\r
LastCommandSize = commandSize;
}
// Select the next buffer
if(CurrentCommandStartPointer == CommandBuffer) {
CurrentCommandByte = CommandBuffer + UARTBT_BUFFER_SIZE;
}
else {
CurrentCommandByte = CommandBuffer;
}
CurrentCommandStartPointer = CurrentCommandByte;
if(commandSize != UARTBT_BUFFER_SIZE) { // If the command is too long, ignore it
NewCommandArrived = true;
}
}
else {
*CurrentCommandByte = byte;
CurrentCommandByte++;
}
}
}
/**
Debug console interrupt service routine, called when a byte is received on UART.
@pre In startup_ccs.c, UARTIntHandler is set as the ISR for the UART0 Rx and Tx interrupt
@pre In startup_ccs.c, this function is declared, e.g:
<pre>
extern void UARTIntHandler(void);
</pre>
@pre Interrupts have been enabled, e.g:
<pre>
IntMasterEnable();
IntEnable(INT_UART0);
UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
</pre>
@pre UART has been configured
@post a byte received on the UART will result in debugConsoleIsr() function pointer called
*/
void UARTIntHandler(void)
{
unsigned long ulStatus;
// Get the interrupt status.
ulStatus = UARTIntStatus(UART0_BASE, true);
// Clear the asserted interrupts.
UARTIntClear(UART0_BASE, ulStatus);
// Loop while there are characters in the receive FIFO.
while(UARTCharsAvail(UART0_BASE))
{
// Read the next character from the UART
uint8_t c = (uint8_t) UARTCharGetNonBlocking(UART0_BASE);
debugConsoleIsr(c); // call the function pointer
}
}
void UARTIntHandler(void) {
unsigned long ulStatus;
long UART_character = 0;
// Get the interrupt status.
//
ulStatus = UARTIntStatus(UART0_BASE, true);
// Clear the asserted interrupts.
//
UARTIntClear(UART0_BASE, ulStatus);
// Loop while there are characters in the receive FIFO.
//
while(UARTCharsAvail(UART0_BASE)) {
// Read the next character from the UART and write it back to the UART.
//
//UARTCharPutNonBlocking(UART0_BASE, UARTCharGetNonBlocking(UART0_BASE));
UART_character = UARTCharGetNonBlocking(UART0_BASE);
store_char(UART_character);
}
}
//*****************************************************************************
//
// The UART interrupt handler.
//
//*****************************************************************************
void UARTIntHandler(void) {
unsigned long ulStatus;
//
// Get the interrrupt status.
//
ulStatus = UARTIntStatus(UART0_BASE, true);
//
// Clear the asserted interrupts.
//
UARTIntClear(UART0_BASE, ulStatus);
//
// Loop while there are characters in the receive FIFO.
//
while (UARTCharsAvail(UART0_BASE)) {
//
// Read the next character from the UART and write it back to the UART.
//
unsigned char b;
b = UARTCharGetNonBlocking(UART0_BASE);
UARTCharPutNonBlocking(UART0_BASE,b);
// UARTCharPutNonBlocking(UART0_BASE,'_');
//
// Blink the LED to show a character transfer is occuring.
//
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2);
//
// Delay for 1 millisecond. Each SysCtlDelay is about 3 clocks.
//
SysCtlDelay(SysCtlClockGet() / (1000 * 3));
//
// Turn off the LED
//
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0);
}
}
/*************************************************************************************************
* @fn procRx
*
* @brief Process Tx bytes.
*
* @param void
*
* @return void
*************************************************************************************************/
static void procRx(void)
{
uint16 tail = uartRecord.rx.bufferTail;
while (UARTCharsAvail(HAL_UART_PORT))
{
uartRecord.rx.pBuffer[tail++] = UARTCharGetNonBlocking(HAL_UART_PORT);
if (tail >= uartRecord.rx.maxBufSize)
{
tail = 0;
}
}
if (uartRecord.rx.bufferTail != tail)
{
uartRecord.rx.bufferTail = tail;
uartRecord.rxChRvdTime = osal_GetSystemClock();
}
}
/**
Debug console interrupt service routine, called when a byte is received on UART.
@pre In startup_ccs.c, UARTIntHandler is set as the ISR for the UART0 Rx and Tx interrupt
@pre In startup_ccs.c, this function is declared, e.g:
<pre>
extern void UARTIntHandler(void);
</pre>
@pre Interrupts have been enabled, e.g:
<pre>
IntMasterEnable();
IntEnable(INT_UART0);
UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
</pre>
@pre UART has been configured
@post a byte received on the UART will result in debugConsoleIsr() function pointer called
*/
void UARTIntHandler(void)
{
toggleLed(4);
//printf("$");
unsigned long ulStatus;
// Get the interrupt status.
ulStatus = UARTIntStatus(UART0_BASE, true);
// Clear the asserted interrupts.
UARTIntClear(UART0_BASE, ulStatus);
// Loop while there are characters in the receive FIFO.
while(UARTCharsAvail(UART0_BASE))
{
// Read the next character from the UART and write it back to the UART.
uint8_t c = (uint8_t) UARTCharGetNonBlocking(UART0_BASE);
debugConsoleIsr(c); //reading this register clears the interrupt flag
}
}
zcm_trans_t* __zcm_trans_tiva_uart_create(uint32_t uart_base,
uint32_t sysctl_uart_base,
uint32_t rx_port_base,
uint32_t sysctl_rx_port_base,
uint32_t pinmap_rx,
uint32_t pinnum_rx,
uint32_t tx_port_base,
uint32_t sysctl_tx_port_base,
uint32_t pinmap_tx,
uint32_t pinnum_tx,
uint32_t baud,
uint64_t (*timestamp_now)(void*),
void* usr)
{
SysCtlPeripheralEnable(sysctl_rx_port_base);
SysCtlPeripheralEnable(sysctl_tx_port_base);
SysCtlPeripheralEnable(sysctl_uart_base);
GPIOPinConfigure(pinmap_rx);
GPIOPinConfigure(pinmap_tx);
GPIOPinTypeUART(rx_port_base, pinnum_rx);
GPIOPinTypeUART(tx_port_base, pinnum_tx);
GPIOPadConfigSet(rx_port_base, pinnum_rx, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
UARTConfigSetExpClk(uart_base, SysCtlClockGet(), uart_validate_baud(baud),
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));
UARTFIFOEnable(uart_base);
UARTEnable(uart_base);
while (UARTCharsAvail(uart_base)) UARTCharGetNonBlocking(uart_base);
// This is sort of a gross hack to not have to allocate memory for the put and get usr pointer
assert(sizeof(void*) >= sizeof(uint32_t));
return zcm_trans_generic_serial_create(uartGet, uartPut, (void*)uart_base,
timestamp_now, usr,
ZCM_GENERIC_SERIAL_MTU,
ZCM_GENERIC_SERIAL_BUFFER_SIZE);
}
void UARTinterrupcion(void)
{
char cThisChar;
int n=0;
int m_nTxBuffIn1 = 16;
unsigned long ulStatus;
//
// Obtengo el estado de la interrupcion
//
ulStatus = UARTIntStatus(UART1_BASE, true);
//
// Limpio los flags de interrupcion
//
UARTIntClear(UART1_BASE, ulStatus);
//if(RIGHT_BUTTON){}
if(ulStatus && UART_INT_RX)
{
while(m_nTxBuffIn1>0 && UARTCharsAvail(UART1_BASE))
{
//
// Lee el proximo caracter de la FIFO de recepcion.
//
cThisChar = UARTCharGetNonBlocking(UART1_BASE);
UARTCharPut(UART0_BASE, cThisChar);
//rc = f_write(&Fil, "Hello world!\r\n", 14, &bw);
m_nTxBuffIn1--;
n=n+1;
}
}
}
int main(void)
{
unsigned long ulADC0_Value[1];
bool running;
int LED=2;
int i=0;
SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
//
// Enable GPIO port A which is used for UART0 pins.
// TODO: change this to whichever GPIO port you are using.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
//
// Configure the pin muxing for UART0 functions on port A0 and A1.
// This step is not necessary if your part does not support pin muxing.
// TODO: change this to select the port/pin you are using.
//
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
//
// Select the alternate (UART) function for these pins.
// TODO: change this to select the port/pin you are using.
//
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
GPIOPinTypeGPIOOutput(LED_PORT, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|TEST_PIN);
// Initialize the UART for console I/O.
//
UARTStdioInit(0);
running = false;
//
// Display the setup on the console.
//
// UARTprintf("ADC ->\n");
// UARTprintf(" Type: Single Ended\n");
// UARTprintf(" Samples: One\n");
// UARTprintf(" Update Rate: 250ms\n");
// UARTprintf(" Input Pin: AIN0/PE3\n\n");
// >>>>>>>>>>>>> ADC CONFIGURATION <<<<<<<<<<<<<<<<<
// Enable the clock to the ADC0 module
SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
// >>>>>>>>>>>>> GPI CONFIGURATION <<<<<<<<<<<<<<<<<
// Configure the pin as analog input
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_3);
// Configure the ADC to sample at 500KSps
SysCtlADCSpeedSet(SYSCTL_ADCSPEED_500KSPS);
// Disable sample sequences 3
ADCSequenceDisable(ADC0_BASE, 3);
// Configure sample sequence 3: timer trigger, priority = 0
ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);
// Configure sample sequence 3 steps 0
ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH0 | ADC_CTL_IE | ADC_CTL_END);
ADCSequenceEnable(ADC0_BASE, 3);
ADCIntEnable(ADC0_BASE, 0);
// Clear the interrupt status flag. This is done to make sure the
// interrupt flag is cleared before we sample.
ADCIntClear(ADC0_BASE, 3);
// Sample AIN0 forever. Display the value on the console.
while(1)
{
i++;
if (UARTCharsAvail(UART0_BASE)) {
char temp;
temp = UARTCharGetNonBlocking(UART0_BASE);
if (temp == '1') running = true;
else if (temp == '0') running = false;
}
if (running) {
if (i==100){
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, LED);
}
// Trigger the ADC conversion.
ADCProcessorTrigger(ADC0_BASE, 3);
// Wait for conversion to be completed.
while(!ADCIntStatus(ADC0_BASE, 3, false))
{
}
// Clear the ADC interrupt flag.
ADCIntClear(ADC0_BASE, 3);
// Read ADC Value.
ADCSequenceDataGet(ADC0_BASE, 3, ulADC0_Value);
// Display the AIN0 (PE7) digital value on the console.
unsigned short val = ulADC0_Value[0];
UARTCharPut(UART0_BASE,(char)(val&0x00FF));
UARTCharPut(UART0_BASE,(char)((val>>8)&0x00FF));
if (i==200){
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, 0);
i=0;
}
}
// This function provides a means of generating a constant length
// delay. The function delay (in cycles) = 3 * parameter. Delay
// 250ms arbitrarily.
SysCtlDelay(SysCtlClockGet() / 250);
}
}
//*****************************************************************************
//
// Private function to manage UART received bytes.
//
// This function maintains the current state of the UART packet reception. It
// tracks start of frame, length expected, length recieved and the frame check
// sequence. Each new byte is captured and stored into the buffer. Status is
// updated and when a message is fully received and in the buffer the callback
// is called if present.
//
// \return None.
//
//*****************************************************************************
static void
RemoTIUARTRxHandler(void)
{
static uint_fast8_t ui8SOFFlag;
static uint_fast16_t ui16Length;
static uint_fast16_t ui16Counter;
static uint8_t ui8FrameCheck;
static uint8_t ui8Command0;
uint8_t ui8RxByte;
//
//Get the character from the hardware uart
//
ui8RxByte = UARTCharGetNonBlocking(g_ui32UARTBase);
//
// Check if this is a start of frame character
//
if(ui8RxByte == RPC_UART_SOF)
{
//
// check for error condition that all of prev msg was not captured.
// send callback if present
//
if(ui16Length != ui16Counter)
{
if(g_pfnErrCallback)
{
g_pfnErrCallback(REMOTI_UART_UNEXPECTED_SOF_ERR);
}
}
else
{
//
// this is a start of frame so set the flag and clear all the other
// state indicators.
//
ui8SOFFlag = 1;
ui16Length = 0;
ui16Counter = 0;
ui8FrameCheck = 0;
ui8Command0 = 0;
}
}
else
{
//
// This is not a SOF char. if it is the char immediate after a SOF
// then it is a length char and needs special handling.
//
if(ui8SOFFlag == 1)
{
//
// record the length in terms of total bytes in the UART frame.
// RemoTI just sends number of bytes in the data payload
// we want Number of general bytes + SOF byte + Length byte +
// two command bytes + frame check byte.
//
ui16Length = ui8RxByte + 5;
//
// Clear the SOF flag
//
ui8SOFFlag = 0;
}
}
//
// load the new byte in to the ring buffer for later use. unless we are
// receiving past the end of an expected message's length.
//
if(ui16Counter <= ui16Length)
{
RingBufWriteOne(&g_rbRemoTIRxRingBuf, ui8RxByte);
//
// increment the counter to track how many bytes are in this msg.
//
ui16Counter++;
if(ui16Counter == 3)
{
ui8Command0 = ui8RxByte;
}
}
else if(g_pfnErrCallback)
{
//
// Alert to the user code that RX Msg Lenght was greater than expected
//
g_pfnErrCallback(REMOTI_UART_RX_LENGTH_ERR);
}
//
// Check if this is the end of the message and manage callbacks
//
if(ui16Length == ui16Counter)
{
//
// compare the current Frame Check to the recieved frame check
// if not equal then call error callback if present.
//
if(ui8FrameCheck != ui8RxByte)
{
//
// Advance read index which effectively dumps the erroneous msg.
//
RingBufAdvanceRead(&g_rbRemoTIRxRingBuf, ui16Counter);
//
// If a callback is registered, call it.
//
if(g_pfnErrCallback)
{
//
// Alert the user that the Frame check sequence failed.
//
g_pfnErrCallback(REMOTI_UART_RX_FCS_ERR);
}
}
else
{
//
// Message was successfully recieved and copied to local buffers.
// Frame check was valid. Increment the message counter and call
// the receive callback.
//
g_ui16RxMsgCount += 1;
if(g_pfnRxCallback)
{
g_pfnRxCallback(ui8Command0);
}
}
}
else if(!ui8SOFFlag)
{
//
// calculate the frame check as we go.
//
ui8FrameCheck ^= ui8RxByte;
}
}
uint8_t Uart::readByte(void)
{
int32_t byte;
byte = UARTCharGetNonBlocking(config_.base);
return (uint8_t)(byte & 0xFF);
}
int main(void) {
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Enable the GPIO port that is used for the on-board LED.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
//
// Enable the GPIO pins for the LED (PF2).
//
GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_2);
ConfigureUART();
GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE, GPIO_PIN_2);
//COnfigure gps fro NMEA GPRMC protocol
GPSConfigMsg(NMEA_GPRMCmsgConfig, 16 );
//CONFIGURE GPS TO OUTPUT IN NMEA FORMAT NOT UBX
GPSConfigMsg(NMEAoutConfig, 28);
while(1)
{
if(GPSrxFlag)
{
//GRab data from Uart3 while it is available
while(UARTCharsAvail(UART3_BASE))
{
//UARTCharPutNonBlocking(UART0_BASE,UARTCharGetNonBlocking(UART3_BASE));
GPS_Data_String[gCharcnt] = UARTCharGetNonBlocking(UART3_BASE);
gCharcnt++;
GPSrxFlag = false;
}
}
//Check for end of the String
if(GPS_Data_String[gCharcnt-1] == '\n')
{
int i = 0;
// Print String to console
for (i = 0; i < BUF_SIZE; i ++)
{
UARTprintf("%c", GPS_Data_String[i]);
}
UARTprintf("%d\n", gCharcnt);
//Reset GPS DATA STring
for (i = 0; i < BUF_SIZE; i ++)
{
GPS_Data_String[i] = 0;
}
gCharcnt = 0;
}
}
}
void UARTIntHandler(void)
{
uint32_t ui32Status;
ui32Status = UARTIntStatus(UART0_BASE, true); //get interrupt status
UARTIntClear(UART0_BASE, ui32Status); //clear the asserted interrupts
while(UARTCharsAvail(UART0_BASE)) //loop while there are chars
{
unsigned char s_detector = UARTCharGetNonBlocking(UART0_BASE);
if(mode==0){
if(s_detector == 'S' || s_detector == 's'){
mode = 1;
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, 0);
UARTCharPut(UART0_BASE, 'E');
UARTCharPut(UART0_BASE, 'n');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'r');
UARTCharPut(UART0_BASE, ':');
UARTCharPut(UART0_BASE, ' ');
}
}
else{
//UARTCharPut(UART0_BASE, 'a');
int ss = s_detector;
if(ss == 13){
//UARTCharPut(UART0_BASE, 'b');
set_temp = curr_temp;
curr_temp = 0;
UARTCharPut(UART0_BASE, '\r');
UARTCharPut(UART0_BASE, '\n');
UARTCharPut(UART0_BASE, 'S');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'm');
UARTCharPut(UART0_BASE, 'p');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 'u');
UARTCharPut(UART0_BASE, 'p');
UARTCharPut(UART0_BASE, 'd');
UARTCharPut(UART0_BASE, 'a');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'd');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'o');
UARTCharPut(UART0_BASE, ':');
UARTCharPut(UART0_BASE, ' ');
uint32_t yo = set_temp;
int div = 1;
while(yo!=0){
yo = yo/10;
div = div*10;
}
yo = set_temp;
div = div/10;
while(div!=0){
uint32_t remain = yo/div;
unsigned char xyz = remain+'0';
UARTCharPut(UART0_BASE, xyz);
yo = yo - remain*div;
div = div/10;
}
UARTCharPut(UART0_BASE, ' ');
unsigned char xyz = 167;
UARTCharPut(UART0_BASE, xyz);
UARTCharPut(UART0_BASE, 'C');
UARTCharPut(UART0_BASE, '\r');
UARTCharPut(UART0_BASE, '\n');
//Set Temp updated to XX ºC
mode = 0;
}
else{
//UARTCharPut(UART0_BASE, 'c');
UARTCharPut(UART0_BASE, s_detector);
if(ss == 127) curr_temp = curr_temp/10;
else curr_temp = curr_temp*10 + (s_detector - '0');
}
}
//UARTCharPut(UART0_BASE, UARTCharGetNonBlocking(UART0_BASE)); //echo character
//UARTCharPut(UART0_BASE, 'r');
//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2); //blink LED
//SysCtlDelay(SysCtlClockGet() / (1000 * 3)); //delay ~1 msec
//GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0); //turn off LED
}
}
/**
* UART 3 - for wifi
*/
void uart3InturruptHandle(void) {
unsigned long ulStatus;
unsigned char ble[15];
ble[14] = '\0';
unsigned long val;
bool msg = false;
//
// Get the interrrupt status.
//
ulStatus = ROM_UARTIntStatus(UART3_BASE, true);
//
// Clear the asserted interrupts.
//
ROM_UARTIntClear(UART3_BASE, ulStatus);
//
// Loop while there are characters in the receive FIFO.
//
while (UARTCharsAvail(UART3_BASE)) {
//
// Read the next character from the UART and write it back to the UART.
//
val = UARTCharGetNonBlocking(UART3_BASE);
ble[i] = val;
if (val == '\n' || val == '\r' || i == 13) {
i = -1;
msg = true;
}
// UARTCharPutNonBlocking(UART3_BASE, val);
i++;
}
if (msg) {
if (strncmp((char*) ble, "gps", 3) == 0) {// && (strncmp((char*) ble, "accl", 4) == 0)
// UARTCharPutNonBlocking(UART3_BASE, 'p');
sendGPSData();
msg = false;
//
} else if (strncmp((char*) ble, "accl", 4) == 0) {
sendAcclData();
msg = false;
} else if (strncmp((char*) ble, "mag", 3) == 0) {
//sendMagnetoData();
sendHeading();
msg = false;
} else if (strncmp((char*) ble, "ser", 3) == 0) {
if (ble[3] == '+') {
servoSet(servo, 1800);
} else if (ble[3] == '-') {
servoSet(servo, 1388);
} else {
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2);
//Delay for 1 millisecond. Each SysCtlDelay is about 3 clocks.
SysCtlDelay(SysCtlClockGet() / (1000 * 3));
//Turn off the LED
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0);
servoSet(servo, 1500);
}
}
msg = false;
}
}
void UARTIsr()
{
//static unsigned int length = sizeof(txArray);
//static unsigned int count = 0;
char rxData = 0;
unsigned int int_id = 0;
static char *inBufferPtr = inBuffer;
static char traceBuf[2] = {'\0', '\0'};
do {
/* This determines the cause of UART2 interrupt.*/
int_id = UARTIntStatus(SOC_UART_2_REGS);
#ifdef _TMS320C6X
// Clear UART2 system interrupt in DSPINTC
IntEventClear(SYS_INT_UART2_INT);
#else
/* Clears the system interupt status of UART2 in AINTC. */
IntSystemStatusClear(SYS_INT_UARTINT2);
#endif
#if 0
/* Checked if the cause is transmitter empty condition.*/
if(UART_INTID_TX_EMPTY == int_id)
{
if(0 < length)
{
/* Write a byte into the THR if THR is free. */
UARTCharPutNonBlocking(SOC_UART_2_REGS, txArray[count]);
length--;
count++;
}
if(0 == length)
{
/* Disable the Transmitter interrupt in UART.*/
UARTIntDisable(SOC_UART_2_REGS, UART_INT_TX_EMPTY);
}
}
#endif
/* Check if the cause is receiver data condition.*/
if(UART_INTID_RX_DATA == int_id)
{
rxData = UARTCharGetNonBlocking(SOC_UART_2_REGS);
if (uartNewString == 0) {
if (rxData == '\r') {
*inBufferPtr = '\0';
uartNewString = 1;
inBufferPtr = inBuffer;
/* Disable the Receiver interrupt in UART.*/
//UARTIntDisable(SOC_UART_2_REGS, UART_INT_RXDATA_CTI);
} else {
*inBufferPtr = rxData;
inBufferPtr++;
if (inBufferPtr >= (inBuffer + inBufferSize))
inBufferPtr--;
else {
*traceBuf = rxData;
trace(traceBuf);
}
}
}
//UARTCharPutNonBlocking(SOC_UART_2_REGS, rxData);
}
/* Check if the cause is receiver line error condition.*/
if(UART_INTID_RX_LINE_STAT == int_id)
{
while(UARTRxErrorGet(SOC_UART_2_REGS))
{
/* Read a byte from the RBR if RBR has data.*/
UARTCharGetNonBlocking(SOC_UART_2_REGS);
}
}
} while (int_id);
return;
}
void BluetoothIntHandler(void)
{
uint32_t ulStatus;
static uint8_t count = 0;
ulStatus = UARTIntStatus(UART_Bluetooth.PortName, true);
ROM_UARTIntClear(UART_Bluetooth.PortName, ulStatus);
while(UARTCharsAvail(UART_Bluetooth.PortName))
{
#ifdef SET_PID
ControlFlag = 1;
*p_UARTBuf++ = (uint8_t)(UARTCharGetNonBlocking(UART_Bluetooth.PortName));
if (p_UARTBuf[-1] == '\n')
{
p_UARTBuf = &UARTBuf[0];
set = 0;
count = 0;
}
else if (p_UARTBuf[-1] == '\r')
{
switch (count)
{
#ifdef PID_SPEED
case 0:
avrSpeed = set / 10000;
PIDVerLeft.SetPoint = avrSpeed;
// PIDPosLeft.SetPoint = set / 10000;
break;
case 1:
PIDVerLeft.Kp = (float)set / 10000;
break;
case 2:
PIDVerLeft.Ki = (float)set / 10000;
break;
case 3:
PIDVerLeft.Kd = (float)set / 10000;
break;
#endif
#ifdef PID_POSITION
case 0:
PIDPosLeft.SetPoint = set / 10000;
break;
case 1:
PIDPosLeft.Kp = (float)set / 10000;
PIDPosRight.Kp = (float)set / 10000;
break;
case 2:
PIDPosLeft.Ki = (float)set / 10000;
PIDPosRight.Ki = (float)set / 10000;
break;
case 3:
PIDPosLeft.Kd = (float)set / 10000;
PIDPosRight.Kd = (float)set / 10000;
break;
#endif
#ifdef PID_WALL
// case 1:
// DeltaEnc = (float)set / 10000;
// break;
case 1:
PIDWallRight.Kp = (float)set / 10000;
break;
case 2:
PIDWallRight.Ki = (float)set / 10000;
break;
case 3:
PIDWallRight.Kd = (float)set / 10000;
break;
#endif
}
set = 0;
count++;
}
else
{
set = set * 10 + (p_UARTBuf[-1] - 48);
}
#else
return;
#endif
}
}
/*
* Function Name: UARTIntHandler
* Input: none
* Output: none
* Description: Interrupt handler for UART Int
* Example Call: UARTIntHandler();
*/
void UARTIntHandler(void) {
uint32_t ui32Status;
ui32Status = UARTIntStatus(UART0_BASE, true); //get interrupt status
UARTIntClear(UART0_BASE, ui32Status); //clear the asserted interrupts
while (UARTCharsAvail(UART0_BASE)) //loop while there are chars
{
unsigned char a = UARTCharGetNonBlocking(UART0_BASE);
if (a == 'S') {
mode = 1;
clearscreen();
UARTCharPut(UART0_BASE, '\r');
UARTCharPut(UART0_BASE, 'E');
UARTCharPut(UART0_BASE, 'n');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'r');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'h');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'm');
UARTCharPut(UART0_BASE, 'p');
UARTCharPut(UART0_BASE, ':');
UARTCharPut(UART0_BASE, ' ');
unsigned char x = UARTCharGet(UART0_BASE);
UARTCharPut(UART0_BASE, x);
unsigned char y = UARTCharGet(UART0_BASE);
UARTCharPut(UART0_BASE, y);
ui32SetTempValueC = (x - '0') * 10 + (y - '0');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 'T');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'm');
UARTCharPut(UART0_BASE, 'p');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'r');
UARTCharPut(UART0_BASE, 'a');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'u');
UARTCharPut(UART0_BASE, 'r');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 'u');
UARTCharPut(UART0_BASE, 'p');
UARTCharPut(UART0_BASE, 'd');
UARTCharPut(UART0_BASE, 'a');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'd');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'o');
UARTCharPut(UART0_BASE, ':');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, x);
UARTCharPut(UART0_BASE, y);
UARTCharPut(UART0_BASE, '\r');
SysCtlDelay(SysCtlClockGet()); //delay 1 sec
mode = 0;
} else {
UARTCharPutNonBlocking(UART0_BASE, a); //echo character
}
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, GPIO_PIN_2); //blink LED
SysCtlDelay(SysCtlClockGet() / (1000 * 3)); //delay ~1 msec
GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0); //turn off LED
}
}
char UartGetChar()
{
return UARTCharGetNonBlocking(UART1_BASE);
}
//*****************************************************************************
//
// This function is called when a receive interrupt is generated by the UART.
//
//*****************************************************************************
void
UARTIntHandler(void)
{
//
// Clear the interrupt cause.
//
UARTIntClear(UART0_BASE, UARTIntStatus(UART0_BASE, true));
//
// Loop while there are characters available in the UART receive FIFO.
//
while(UARTCharsAvail(UART0_BASE))
{
//
// Determine the current UART handler state.
//
switch(g_ulUARTState)
{
//
// The UART handler is waiting for the start of a packet.
//
case UART_STATE_IDLE:
{
//
// The next character is the packet size.
//
g_ulUpdateSize = UARTCharGetNonBlocking(UART0_BASE) - 2;
//
// If the packet size is not zero, then go to the wait for
// checksum state.
//
if(g_ulUpdateSize != 0)
{
g_ulUARTState = UART_STATE_HAVE_SIZE;
}
//
// This character has been read.
//
break;
}
//
// The UART handler is waiting for the packet checksum.
//
case UART_STATE_HAVE_SIZE:
{
//
// The next charcter is the packet checksum.
//
g_ulUpdateCheckSum = UARTCharGetNonBlocking(UART0_BASE);
//
// Set the index into the packet buffer to zero.
//
g_ulUpdateIdx = 3;
//
// Go to the wait for data state.
//
g_ulUARTState = UART_STATE_HAVE_CKSUM;
//
// This character has been read.
//
break;
}
//
// The UART handler is waiting for the packet data.
//
case UART_STATE_HAVE_CKSUM:
{
//
// The next character is part of the packet data.
//
g_pucUpdateData[g_ulUpdateIdx++] =
UARTCharGetNonBlocking(UART0_BASE);
//
// See if this was the last byte of the packet data.
//
if(g_ulUpdateIdx == (g_ulUpdateSize + 3))
{
//
// Process this packet.
//
ProcessPacket();
//
// If the handler state hasn't changed (for example, as a
// result of packet being output), then go to the wait for
// packet state.
//
if(g_ulUARTState == UART_STATE_HAVE_CKSUM)
{
g_ulUARTState = UART_STATE_IDLE;
}
}
//
// This character has been read.
//
break;
}
//
// The UART handler is waiting for an ACK or NAK packet.
//
case UART_STATE_ACK_NAK:
{
//
// Read the next byte.
//
g_ulUpdateIdx = UARTCharGetNonBlocking(UART0_BASE);
//
// Go to the wait for packet state if this is an ACK or NAK.
//
if((g_ulUpdateIdx == COMMAND_ACK) ||
(g_ulUpdateIdx == COMMAND_NAK))
{
g_ulUARTState = UART_STATE_IDLE;
}
//
// This character has been read.
//
break;
}
}
}
}
// A regular command returns OK when good, ERROR when failed
bool processRegularCommand(char* atCommand, char* waitForString, unsigned retryLimit, char* response, unsigned maxLen)
{
const unsigned rxBufLen = 200;
char rxBuf[200] = {0};
int counter = 0;
int index = 0;
unsigned retryCounter = 0;
// Take control of the stdio UART
// The wifi chip is connected to UART1
UARTStdioConfig(1, 115200, 16000000);
// Can we even talk to the device?
while(1<2)
{
// First time, and every time counter is reset, we try again
if( counter == 0)
{
// Send command
if( !(atCommand[0] == '\0') )
{
UARTprintf("%s\r\n", atCommand);
}
// If they didn't set a limit, we try forever
if( retryLimit && (retryCounter >= retryLimit) )
{
UARTStdioConfig(0, 115200, 16000000);
return false;
}
// Clean out the buffer
memset(rxBuf, 0x00, rxBufLen);
index = 0; //resending the command, so reset the index
retryCounter++;
// THis is for debug
counter++;
}
// Check if data exists on uart1 (non usb uart)
if( UARTCharsAvail(UART1_BASE) )
{
rxBuf[index] = (char)UARTCharGetNonBlocking(UART1_BASE);
index++;
if( strstr(rxBuf, waitForString) )
{
UARTStdioConfig(0, 115200, 16000000);
// Copy data back to user if they passed in a valid buffer and length
if( (response!=0) && (maxLen != 0) )
{
memcpy(response, rxBuf, maxLen);
}
return true;
}
else if( strstr(rxBuf, "ERROR") )
{
UARTStdioConfig(0, 115200, 16000000);
return false;
}
else if( strstr(rxBuf, "no change") )
{
UARTStdioConfig(0, 115200, 16000000);
return true;
}
else if( strstr(rxBuf, "\r\n") )
{
// So the data we received so far was useless.
// Go back to zero
memset(rxBuf, 0x00, rxBufLen);
index = 0;
}
/*
UARTStdioConfig(0, 115200, 16000000);
for(i=0;i<strlen(response);i++)
{
UARTprintf("response[%d]: %c = %d\n", i, response[i], response[i]);
}
//UARTprintf("wifi chip gave us: %s\n", rxBuf);
UARTStdioConfig(1, 115200, 16000000);
*/
}
/*
else
{
//SysCtlDelay(SysCtlClockGet() / 3);
counter++;
// Reset counter
if(counter>15)
{
//counter = 0;
}
}
counter++;
*/
}
}
static void UARTIsr(void)
{
unsigned int rxErrorType = 0;
unsigned char rxByte = 0;
unsigned int intId = 0;
unsigned int idx = 0;
/* Checking ths source of UART interrupt. */
intId = UARTIntIdentityGet(SOC_UART_0_REGS);
switch(intId)
{
case UART_INTID_TX_THRES_REACH:
/*
** Checking if the entire transmisssion is complete. If this
** condition fails, then the entire transmission has been completed.
*/
if(currNumTxBytes < (sizeof(txArray) - 1))
{
txEmptyFlag = TRUE;
}
/*
** Disable the THR interrupt. This has to be done even if the
** transmission is not complete so as to prevent the Transmit
** empty interrupt to be continuously generated.
*/
UARTIntDisable(SOC_UART_0_REGS, UART_INT_THR);
break;
case UART_INTID_RX_THRES_REACH:
rxByte = UARTCharGetNonBlocking(SOC_UART_0_REGS);
UARTCharPutNonBlocking(SOC_UART_0_REGS, rxByte);
break;
case UART_INTID_RX_LINE_STAT_ERROR:
rxErrorType = UARTRxErrorGet(SOC_UART_0_REGS);
/* Check if Overrun Error has occured. */
if(rxErrorType & UART_LSR_RX_OE)
{
ConsoleUtilsPrintf("\r\nUART Overrun Error occured."
" Reading and Echoing all data in RX FIFO.\r\n");
/* Read the entire RX FIFO and the data in RX Shift register. */
for(idx = 0; idx < (RX_FIFO_SIZE + 1); idx++)
{
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
UARTFIFOCharPut(SOC_UART_0_REGS, rxByte);
}
break;
}
/* Check if Break Condition has occured. */
else if(rxErrorType & UART_LSR_RX_BI)
{
ConsoleUtilsPrintf("\r\nUART Break Condition occured.");
}
/* Check if Framing Error has occured. */
else if(rxErrorType & UART_LSR_RX_FE)
{
ConsoleUtilsPrintf("\r\nUART Framing Error occured.");
}
/* Check if Parity Error has occured. */
else if(rxErrorType & UART_LSR_RX_PE)
{
ConsoleUtilsPrintf("\r\nUART Parity Error occured.");
}
ConsoleUtilsPrintf(" Data at the top of RX FIFO is: ");
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
UARTFIFOCharPut(SOC_UART_0_REGS, rxByte);
break;
case UART_INTID_CHAR_TIMEOUT:
ConsoleUtilsPrintf("\r\nUART Character Timeout Interrupt occured."
" Reading and Echoing all data in RX FIFO.\r\n");
/* Read all the data in RX FIFO. */
while(TRUE == UARTCharsAvail(SOC_UART_0_REGS))
{
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
UARTFIFOCharPut(SOC_UART_0_REGS, rxByte);
}
break;
default:
break;
}
}
//*****************************************************************************
//
// Read as many characters from the UART FIFO as we can and move them into
// the CDC transmit buffer.
//
// \return Returns UART error flags read during data reception.
//
//*****************************************************************************
static uint32_t
ReadUARTData(void)
{
int32_t i32Char;
int8_t ui8Char;
uint32_t ui32Space, ui32Errors;
//
// Clear our error indicator.
//
ui32Errors = 0;
//
// How much space do we have in the buffer?
//
ui32Space = USBBufferSpaceAvailable((tUSBBuffer *)&g_sTxBuffer);
//
// Read data from the UART FIFO until there is none left or we run
// out of space in our receive buffer.
//
while(ui32Space && UARTCharsAvail(UART0_BASE))
{
//
// Read a character from the UART FIFO into the ring buffer if no
// errors are reported.
//
i32Char = UARTCharGetNonBlocking(UART0_BASE);
//
// If the character did not contain any error notifications,
// copy it to the output buffer.
//
if(!(i32Char & ~0xFF))
{
ui8Char = (unsigned char)(i32Char & 0xFF);
USBBufferWrite((tUSBBuffer *)&g_sTxBuffer,
(unsigned char *)&ui8Char, 1);
//
// Decrement the number of bytes we know the buffer can accept.
//
ui32Space--;
}
else
{
#ifdef DEBUG
//
// Increment our receive error counter.
//
g_ui32UARTRxErrors++;
#endif
//
// Update our error accumulator.
//
ui32Errors |= i32Char;
}
//
// Update our count of bytes received via the UART.
//
g_ui32UARTRxCount++;
}
//
// Pass back the accumulated error indicators.
//
return(ui32Errors);
}
void UART_0_ISR(void)
{
unsigned int rxErrorType = 0;
unsigned char rxByte = 0;
unsigned int intId = 0;
unsigned int idx = 0;
/* Checking ths source of UART interrupt. */
intId = UARTIntIdentityGet(SOC_UART_0_REGS);
switch(intId)
{
case UART_INTID_RX_THRES_REACH:
rxByte = UARTCharGetNonBlocking(SOC_UART_0_REGS);
UART_AddToRXBuffer(rxByte);
break;
case UART_INTID_RX_LINE_STAT_ERROR:
rxErrorType = UARTRxErrorGet(SOC_UART_0_REGS);
/* Check if Overrun Error has occured. */
if(rxErrorType & UART_LSR_RX_OE)
{
/* Read the entire RX FIFO and the data in RX Shift register. */
for(idx = 0; idx < (RX_FIFO_SIZE + 1); idx++)
{
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
UART_AddToRXBuffer(rxByte);
}
break;
}
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
break;
case UART_INTID_CHAR_TIMEOUT:
/* Read all the data in RX FIFO. */
while(TRUE == UARTCharsAvail(SOC_UART_0_REGS))
{
rxByte = UARTFIFOCharGet(SOC_UART_0_REGS);
UART_AddToRXBuffer(rxByte);
}
break;
case (UART_INTID_TX_THRES_REACH):
/* UART transfer register and FIFO is empty */
if(UART_TX_remove != UART_TX_add)
{
while(UARTTxFIFOFullStatusGet(SOC_UART_0_REGS) == UART_TX_FIFO_NOT_FULL)
{
if(UART_TX_remove == UART_TX_add)
{
break;
}
UARTFIFOCharPut(SOC_UART_0_REGS, UART_TX_buffer[UART_TX_remove]);
UART_TX_remove = (UART_TX_remove + 1UL) % UART_TX_SIZE;
}
}
else
{
/* Disabling required TX Interrupts. */
UARTIntDisable(SOC_UART_0_REGS, UART_INT_THR);
}
break;
default:
break;
}
}