Exemplo n.º 1
0
void rst_handler(void){
    // Copy the .data section pointers to ram from flash.
    // Look at LD manual (Optional Section Attributes).

    // source and destination pointers
    unsigned long *src;
    unsigned long *dest;

    //this should be good!
    src = &_end_text;
    dest = &_start_data;

    FPUEnable();
    FPULazyStackingEnable();

    //this too
    while(dest < &_end_data)
    {
        *dest++ = *src++;
    }

    // now set the .bss segment to 0!
    dest = &_start_bss;
    while(dest < &_end_bss){
        *dest++ = 0;
    }

    // after setting copying .data to ram and "zero-ing" .bss we are good
    // to start the main() method!
    // There you go!
    main();
}
Exemplo n.º 2
0
void Board::init() // initialize the board specifics
{
	//
	// Enable lazy stacking for interrupt handlers.  This allows floating-point
	// instructions to be used within interrupt handlers, but at the expense of
	// extra stack usage.
	//
	FPUEnable();
	FPULazyStackingEnable();
	//
	// Set the clocking to run from the PLL at 50MHz
	//
	ROM_SysCtlClockSet(
	SYSCTL_SYSDIV_1 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
	IntMasterEnable(); // Enable interrupts to the processor.
	// Set up the period for the SysTick timer for 1 mS.
	SysTickPeriodSet(SysCtlClockGet() / 1000);
	SysTickIntEnable(); // Enable the SysTick Interrupt.
	SysTickEnable(); // Enable SysTick.
	/*	//
	 // Enable lazy stacking for interrupt handlers.  This allows floating-point
	 // instructions to be used within interrupt handlers, but at the expense of
	 // extra stack usage.
	 FPUEnable();
	 FPULazyStackingEnable();
	 SysCtlClockSet(
	 SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN
	 | SYSCTL_XTAL_16MHZ); // Set the clocking to run directly from the crystal.
	 IntMasterEnable(); // Enable interrupts to the processor.*/

	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF); // Enable the GPIO port that is used for the on-board LED.
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_2); // Enable the GPIO pins for the LED (PF2).
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1);
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_3);

	/*	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0); // Enable the peripherals used by this example.
	 SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
	 IntMasterEnable(); // Enable processor interrupts.
	 // Set up the period for the SysTick timer for 1 mS.
	 SysTickPeriodSet(SysCtlClockGet() / 1000);
	 SysTickIntEnable(); // Enable the SysTick Interrupt.
	 SysTickEnable(); // Enable SysTick.

	 GPIOPinConfigure(GPIO_PA0_U0RX); // Set GPIO A0 and A1 as UART pins.
	 GPIOPinConfigure(GPIO_PA1_U0TX);
	 GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);

	 UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), 115200,
	 (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE)); // Configure the UART for 115,200, 8-N-1 operation.
	 IntEnable(INT_UART0);
	 UARTFIFODisable(UART0_BASE);
	 //	UARTFIFOLevelSet(UART0_BASE, UART_FIFO_TX1_8, UART_FIFO_RX1_8);
	 UARTFlowControlSet(UART0_BASE, UART_FLOWCONTROL_NONE);
	 UARTIntDisable(UART0_BASE, UART_INT_RT);
	 UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_TX); // Enable the UART interrupt.*/
	Board::setLedOn(Board::LED_GREEN, false);
	Board::setLedOn(Board::LED_RED, false);
	Board::setLedOn(Board::LED_BLUE, false);
	AdcInit();
}
Exemplo n.º 3
0
/**
Configures hardware for the particular hardware platform:
- Ports: sets direction, interrupts, pullup/pulldown resistors etc.
- Holds radio in reset (active-low)
*/
void halInit()
{
    //
    // Enable the floating-point unit.
    //
    FPUEnable();
    //
    // Configure the floating-point unit to perform lazy stacking of the
    // floating-point state.
    //
    FPULazyStackingEnable();

	oscInit();
	portInit();
	halUartInit();

    //Point the function pointers to doNothing() so that they don't trigger a restart
    debugConsoleIsr = &doNothing;
    buttonIsr = &doNothing;
    clearLeds();
    displayVersion();
#ifdef AF_VERBOSE
        printf("* AF_VERBOSE *\r\n");
#endif
}
void SystemInit(void)
{
   //Enable floating-point unit
   FPUEnable();

   //Run from the PLL at 120MHz
   SysCtlClockFreqSet(SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN |
      SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480, 120000000);
}
Exemplo n.º 5
0
int main(void) {
	//
	// Enable lazy stacking for interrupt handlers.  This allows floating-point
	// instructions to be used within interrupt handlers, but at the expense of
	// extra stack usage.
	//
	FPULazyStackingEnable();
	FPUEnable();

	//
	// Set the clocking to run directly from the crystal.
	// Clock to 80MHZ
	//
	SysCtlClockSet(SYSCTL_SYSDIV_2_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
					   SYSCTL_OSC_MAIN);

	IntMasterEnable();

	//set up the radio
	if( !nrf24l01p_setup(&nrf, GPIO_PORTC_BASE, GPIO_PIN_4, SSI0_BASE) ){
		//we couldn't communicate with the radio
		return 1;
	}

	nrf24l01p_set_PA_level(&nrf, RF24_PA_LOW);

	nrf24l01p_open_writing_pipe(&nrf, addresses[0]);
	nrf24l01p_open_reading_pipe(&nrf, 1,addresses[1]);

	nrf24l01p_start_listening(&nrf);

	while(1){
		if (nrf24l01p_available(&nrf)) {
			uint32_t got_time;

			// Variable for the received timestamp
			while (nrf24l01p_available(&nrf)) {                 // While there is data ready
				nrf24l01p_read(&nrf, &got_time, sizeof(uint32_t));     // Get the payload
			}

			nrf24l01p_stop_listening(&nrf);        // First, stop listening so we can talk
			nrf24l01p_write(&nrf, &got_time, sizeof(uint32_t)); // Send the final one back.
			nrf24l01p_start_listening(&nrf); // Now, resume listening so we catch the next packets.

		}

		//give it a little space
		SysCtlDelay((SysCtlClockGet() >> 12) * 5);
	}

	return 0;
}
Exemplo n.º 6
0
//*****************************************************************************
// Initilizes hardware
//*****************************************************************************
void InitCortexHardware(void) {
	//
	// Enable FPU
	//
	FPUEnable();
	FPULazyStackingEnable();

	// Set clocking to 50 MHz, due to REV_A1 being a total ass.
	SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);

	//
	// Configure UART0 for 115200-8n1
	// 
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
	GPIOPinConfigure(GPIO_PA0_U0RX);
	GPIOPinConfigure(GPIO_PA1_U0TX);
	GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
  	UARTClockSourceSet(UART0_BASE, UART_CLOCK_PIOSC);
  	UARTStdioConfig(0, 115200, 16000000);
	UARTFIFODisable(UART0_BASE);
	UARTIntEnable(UART0_BASE, UART_INT_RX);
	UARTprintf("\n\nSystem initializing.\n");

	//
	// Enable SysTick for periodic Interrupts
	// systick is used by command line process
	//
	SysTickEnable();
	SysTickPeriodSet(SysCtlClockGet()/(SYSTICK_TIME/10));
	SysTickIntEnable();
	UARTprintf("- Systick timer enabled.\n");

	//
	// Configure Heartbeat led
	//
	SysCtlPeripheralEnable(HEARTBEAT_CTRL_PORT);
	GPIOPinTypeGPIOOutput(HEARTBEAT_BASE_PORT, HEARTBEAT_PIN);
	GPIOPinWrite(HEARTBEAT_BASE_PORT, HEARTBEAT_PIN, 0xFF);
	UARTprintf("- GPIO enabled. \n");


    //
    // Enable UART interrupts
    //
    IntMasterEnable();
    IntEnable(INT_UART0);
    UARTprintf("- Interrupts enabled.\n");
}
Exemplo n.º 7
0
// ----------------------------------------------------------------------------------
//
// _reset_init() -- Reset entry point.  
//
//      The CPU reset vector points here.  Initialize the CPU, and jump
//      to the C runtime start, which will eventually invoke main()
//
void _reset_init(void)
{
    // Copy values to initialize data segment
    uint32_t *fr = __etext;
    uint32_t *to = __data_start__;
    unsigned int len = __data_end__ - __data_start__;
    while(len--)
        *to++ = *fr++;

    FPUEnable();
    FPUStackingDisable();


    main();
}
Exemplo n.º 8
0
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]);
    }
  }
}
Exemplo n.º 9
0
int
main(void)
{

	//En vez de usar 16MHz, uso el PLL para conseguir 40MHz

	SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
	unsigned long g=SysCtlClockGet();

	FPUEnable();
	FPUStackingEnable();
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3);

	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
	GPIOPinConfigure(GPIO_PC4_U4RX);
	GPIOPinConfigure(GPIO_PC5_U4TX);
	GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);
	UARTConfigSetExpClk(UART4_BASE, SysCtlClockGet(), 115200,
			(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
					UART_CONFIG_PAR_NONE));

	GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0);

	rc = f_mount(0, &Fatfs);					//registra un area de trabajo
	rc = f_open(&Fil, "BuffGPS.TXT", FA_WRITE | FA_OPEN_ALWAYS);	//abre o crea un archivo
	rc = f_lseek(&Fil, Fil.fsize);
	rc = f_write(&Fil, &nuevo_registro, 15, &bw);
	rc = f_sync(&Fil);
	rc = f_close(&Fil);

	//Configuracion de timer y su interrupcion
	SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
	TimerConfigure(TIMER0_BASE, TIMER_CFG_32_BIT_PER);
	valor_timer = (SysCtlClockGet()/20);
	TimerLoadSet(TIMER0_BASE, TIMER_A, valor_timer -1);
	IntEnable(INT_TIMER0A);
	TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
	TimerEnable(TIMER0_BASE, TIMER_A);

	//IntPrioritySet(FAULT_SYSTICK, 0x00);
	IntPrioritySet(INT_TIMER0A, 0x00);

	IntMasterEnable();

	while(1);
}
Exemplo n.º 10
0
void main(void) {
	FPUEnable();
	FPULazyStackingEnable();
	SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);

	while(1) {
		delta_params params;
		params.a = 70,
		params.b = 200;
		params.c = 50;
		params.d = 70;
		float alpha, beta, gamma;
		float X, Y, Z;
		X = 20;
		Y = -40;
		Z = 186;
		delta_calc(params, X, Y, Z, 0, &alpha, &beta, &gamma);
	}
}
void initClk()
{
    /*The FPU should be enabled because some compilers will use floating-
    * point registers, even for non-floating-point code.  If the FPU is not
    * enabled this will cause a fault.  This also ensures that floating-
    * point operations could be added to this application and would work
    * correctly and use the hardware floating-point unit.  Finally, lazy
    * stacking is enabled for interrupt handlers.  This allows floating-
    * point instructions to be used within interrupt handlers, but at the
    * expense of extra stack usage. */
    FPUEnable();
    FPULazyStackingEnable();

    g_SysClock = SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
						 SYSCTL_OSC_MAIN |
						 SYSCTL_USE_PLL |
						 SYSCTL_CFG_VCO_480), 120000000);
		
		
		
}
Exemplo n.º 12
0
int main(void)
{
#ifdef PART_LM4F120H5QR // ARM code
  SysCtlClockSet( SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ | SYSCTL_OSC_MAIN ); //set system clock to 80 MHz
  FPUEnable(); //enable the Floating Point Unit
//  FPULazyStackingEnable(); // Enable stacking for interrupt handlers
#endif

  // Initialize system
  serial_init(); // Setup serial baud rate and interrupts
  settings_init(); // Load grbl settings from EEPROM
  st_init(); // Setup stepper pins and interrupt timers

#ifdef PART_LM4F120H5QR // ARM code
  IntMasterEnable();
#else // AVR code
  sei(); // Enable interrupts
#endif
  
  memset(&sys, 0, sizeof(sys));  // Clear all system variables
  sys.abort = true;   // Set abort to complete initialization
  sys.state = STATE_INIT;  // Set alarm state to indicate unknown initial position
  
  for(;;) {
  
    // Execute system reset upon a system abort, where the main program will return to this loop.
    // Once here, it is safe to re-initialize the system. At startup, the system will automatically
    // reset to finish the initialization process.
    if (sys.abort) {
      // Reset system.
      serial_reset_read_buffer(); // Clear serial read buffer
      plan_init(); // Clear block buffer and planner variables
      gc_init(); // Set g-code parser to default state
      protocol_init(); // Clear incoming line data and execute startup lines
      spindle_init();
      coolant_init();
      limits_init();
      st_reset(); // Clear stepper subsystem variables.

      // Sync cleared gcode and planner positions to current system position, which is only
      // cleared upon startup, not a reset/abort. 
      sys_sync_current_position();

      // Reset system variables.
      sys.abort = false;
      sys.execute = 0;
      if (bit_istrue(settings.flags,BITFLAG_AUTO_START)) { sys.auto_start = true; }
      
      // Check for power-up and set system alarm if homing is enabled to force homing cycle
      // by setting Grbl's alarm state. Alarm locks out all g-code commands, including the
      // startup scripts, but allows access to settings and internal commands. Only a homing
      // cycle '$H' or kill alarm locks '$X' will disable the alarm.
      // NOTE: The startup script will run after successful completion of the homing cycle, but
      // not after disabling the alarm locks. Prevents motion startup blocks from crashing into
      // things uncontrollably. Very bad.
      #ifdef HOMING_INIT_LOCK
        if (sys.state == STATE_INIT && bit_istrue(settings.flags,BITFLAG_HOMING_ENABLE)) { sys.state = STATE_ALARM; }
      #endif
      
      // Check for and report alarm state after a reset, error, or an initial power up.
      if (sys.state == STATE_ALARM) {
        report_feedback_message(MESSAGE_ALARM_LOCK); 
      } else {
        // All systems go. Set system to ready and execute startup script.
        sys.state = STATE_IDLE;
        protocol_execute_startup(); 
      }
    }
    
    protocol_execute_runtime();
    protocol_process(); // ... process the serial protocol
    
    // When the serial protocol returns, there are no more characters in the serial read buffer to
    // be processed and executed. This indicates that individual commands are being issued or 
    // streaming is finished. In either case, auto-cycle start, if enabled, any queued moves.
    if (sys.auto_start) { st_cycle_start(); }
    
  }
  // return 0;   /* never reached */
}
Exemplo n.º 13
0
void pio_init()
{
					 //  Board Initialization start
				 //
				 //
				 // The FPU should be enabled because some compilers will use floating-
				 // point registers, even for non-floating-point code.  If the FPU is not
				 // enabled this will cause a fault.  This also ensures that floating-
				 // point operations could be added to this application and would work
				 // correctly and use the hardware floating-point unit.  Finally, lazy
				 // stacking is enabled for interrupt handlers.  This allows floating-
				 // point instructions to be used within interrupt handlers, but at the
				 // expense of extra stack usage.
				 //
				 FPUEnable(); 
				 FPULazyStackingEnable();	  
				 
				 //Init the device with 16 MHz clock.
				 initClk();
	
                 /* Configure the system peripheral bus that IRQ & EN pin are map to */
					MAP_SysCtlPeripheralEnable( SYSCTL_PERIPH_IRQ_PORT);
					//
					// Disable all the interrupts before configuring the lines
					//
					MAP_GPIOPinIntDisable(SPI_GPIO_IRQ_BASE, 0xFF);
					//
					// Cofigure WLAN_IRQ pin as input
					//
					MAP_GPIOPinTypeGPIOInput(SPI_GPIO_IRQ_BASE, SPI_IRQ_PIN);

					GPIOPadConfigSet(SPI_GPIO_IRQ_BASE, SPI_IRQ_PIN, GPIO_STRENGTH_2MA,
												GPIO_PIN_TYPE_STD_WPU);     
					//
					// Setup the GPIO interrupt for this pin
					//
					MAP_GPIOIntTypeSet(SPI_GPIO_IRQ_BASE, SPI_IRQ_PIN, GPIO_FALLING_EDGE);

					//
					// Configure WLAN chip
					//
                    MAP_GPIOPinTypeGPIOOutput(SPI_GPIO_IRQ_BASE, SPI_EN_PIN);
                    MAP_GPIODirModeSet( SPI_GPIO_IRQ_BASE, SPI_EN_PIN, GPIO_DIR_MODE_OUT );
                    MAP_GPIOPadConfigSet( SPI_GPIO_IRQ_BASE, SPI_EN_PIN, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD );



					MAP_GPIOPinWrite(SPI_GPIO_IRQ_BASE, SPI_EN_PIN, PIN_LOW);	
					SysCtlDelay(600000);
					SysCtlDelay(600000);
					SysCtlDelay(600000);
					//
					// Disable WLAN CS with pull up Resistor
					//
					MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_SPI_PORT);	
					MAP_GPIOPinTypeGPIOOutput(SPI_CS_PORT, SPI_CS_PIN);
					GPIOPadConfigSet(SPI_CS_PORT, SPI_CS_PIN, GPIO_STRENGTH_2MA,
												GPIO_PIN_TYPE_STD_WPU);     
					MAP_GPIOPinWrite(SPI_CS_PORT, SPI_CS_PIN, PIN_HIGH);

					// 
					// Enable interrupt for WLAN_IRQ pin
					//
					MAP_GPIOPinIntEnable(SPI_GPIO_IRQ_BASE, SPI_IRQ_PIN);
					// 
					// Clear interrupt status
					//
					SpiCleanGPIOISR();

					MAP_IntEnable(INT_GPIO_SPI);
					
					//init LED
					initLEDs();

}
Exemplo n.º 14
0
//*****************************************************************************
//
// A simple demonstration of the features of the TivaWare Graphics Library.
//
//*****************************************************************************
int
main(void)
{
    tContext sContext;
    tRectangle sRect;

    //
    // The FPU should be enabled because some compilers will use floating-
    // point registers, even for non-floating-point code.  If the FPU is not
    // enabled this will cause a fault.  This also ensures that floating-
    // point operations could be added to this application and would work
    // correctly and use the hardware floating-point unit.  Finally, lazy
    // stacking is enabled for interrupt handlers.  This allows floating-
    // point instructions to be used within interrupt handlers, but at the
    // expense of extra stack usage.
    //
    FPUEnable();
    FPULazyStackingEnable();

    //
    // Run from the PLL at 120 MHz.
    //
    g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
                                            SYSCTL_OSC_MAIN |
                                            SYSCTL_USE_PLL |
                                            SYSCTL_CFG_VCO_480), 120000000);

    //
    // Initialize the display driver.
    //
    Kentec320x240x16_SSD2119Init(g_ui32SysClock);

    //
    // Initialize the graphics context.
    //
    GrContextInit(&sContext, &g_sKentec320x240x16_SSD2119);

    //
    // Fill the top 24 rows of the screen with blue to create the banner.
    //
    sRect.i16XMin = 0;
    sRect.i16YMin = 0;
    sRect.i16XMax = GrContextDpyWidthGet(&sContext) - 1;
    sRect.i16YMax = 23;
    GrContextForegroundSet(&sContext, ClrDarkBlue);
    GrRectFill(&sContext, &sRect);

    //
    // Put a white box around the banner.
    //
    GrContextForegroundSet(&sContext, ClrWhite);
    GrRectDraw(&sContext, &sRect);

    //
    // Put the application name in the middle of the banner.
    //
    GrContextFontSet(&sContext, &g_sFontCm20);
    GrStringDrawCentered(&sContext, "grlib demo", -1,
                         GrContextDpyWidthGet(&sContext) / 2, 8, 0);

    //
    // Configure and enable uDMA
    //
    SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA);
    SysCtlDelay(10);
    uDMAControlBaseSet(&psDMAControlTable[0]);
    uDMAEnable();

    //
    // Initialize the touch screen driver and have it route its messages to the
    // widget tree.
    //
    TouchScreenInit(g_ui32SysClock);
    TouchScreenCallbackSet(WidgetPointerMessage);

    //
    // Add the title block and the previous and next buttons to the widget
    // tree.
    //
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sPrevious);
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sTitle);
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sNext);

    //
    // Add the first panel to the widget tree.
    //
    g_ui32Panel = 0;
    WidgetAdd(WIDGET_ROOT, (tWidget *)g_psPanels);
    CanvasTextSet(&g_sTitle, g_pcPanei32Names[0]);

    //
    // Issue the initial paint request to the widgets.
    //
    WidgetPaint(WIDGET_ROOT);

    //
    // Loop forever handling widget messages.
    //
    while(1) {
        //
        // Process any messages in the widget message queue.
        //
        WidgetMessageQueueProcess();
    }
}
int
main(void)
{
    tContext sContext;
    tRectangle sRect;

    //
    // The FPU should be enabled because some compilers will use floating-
    // point registers, even for non-floating-point code.  If the FPU is not
    // enabled this will cause a fault.  This also ensures that floating-
    // point operations could be added to this application and would work
    // correctly and use the hardware floating-point unit.  Finally, lazy
    // stacking is enabled for interrupt handlers.  This allows floating-
    // point instructions to be used within interrupt handlers, but at the
    // expense of extra stack usage.
    //
    FPUEnable();
    FPULazyStackingEnable();

    //
    // Set the clock to 40Mhz derived from the PLL and the external oscillator
    //
    ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
                       SYSCTL_OSC_MAIN);

    //
    // Initialize the display driver.
    //
    Adafruit320x240x16_ILI9325Init();

    //
    // Initialize the graphics context.
    //
    GrContextInit(&sContext, &g_sAdafruit320x240x16_ILI9325);

    //
    // Configure and enable uDMA
    //
    SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA);
    SysCtlDelay(10);
    uDMAControlBaseSet(&sDMAControlTable[0]);
    uDMAEnable();

    //
    // Initialize the touch screen driver and have it route its messages to the
    // widget tree.
    //
    TouchScreenInit();

    //
    // Paint touch calibration targets and collect calibration data
    //
    GrContextForegroundSet(&sContext, ClrWhite);
    GrContextBackgroundSet(&sContext, ClrBlack);
    GrContextFontSet(&sContext, &g_sFontCm20);
    GrStringDraw(&sContext, "Touch center of circles to calibrate", -1, 0, 0, 1);
    GrCircleDraw(&sContext, 32, 24, 10);
    GrFlush(&sContext);
    TouchScreenCalibrationPoint(32, 24, 0);

    GrCircleDraw(&sContext, 280, 200, 10);
    GrFlush(&sContext);
    TouchScreenCalibrationPoint(280, 200, 1);

    GrCircleDraw(&sContext, 200, 40, 10);
    GrFlush(&sContext);
    TouchScreenCalibrationPoint(200, 40, 2);

    //
    // Calculate and set calibration matrix
    //
    long* plCalibrationMatrix = TouchScreenCalibrate();
    
    //
    // Write out calibration data if successful
    //
    if(plCalibrationMatrix)
    {
    	char pcStringBuf[20];
    	usprintf(pcStringBuf, "A %d", plCalibrationMatrix[0]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 20, 1);
    	usprintf(pcStringBuf, "B %d", plCalibrationMatrix[1]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 40, 1);
    	usprintf(pcStringBuf, "C %d", plCalibrationMatrix[2]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 60, 1);
    	usprintf(pcStringBuf, "D %d", plCalibrationMatrix[3]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 80, 1);
    	usprintf(pcStringBuf, "E %d", plCalibrationMatrix[4]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 100, 1);
    	usprintf(pcStringBuf, "F %d", plCalibrationMatrix[5]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 120, 1);
    	usprintf(pcStringBuf, "Div %d", plCalibrationMatrix[6]);
    	GrStringDraw(&sContext, pcStringBuf, -1, 0, 140, 1);
    	TouchScreenCalibrationPoint(0,0,0);	// wait for dummy touch
    }

    //
    // Enable touch screen event handler for grlib widgets
    //
    TouchScreenCallbackSet(WidgetPointerMessage);

    //
    // Fill the top 24 rows of the screen with blue to create the banner.
    //
    sRect.sXMin = 0;
    sRect.sYMin = 0;
    sRect.sXMax = GrContextDpyWidthGet(&sContext) - 1;
    sRect.sYMax = 23;
    GrContextForegroundSet(&sContext, ClrDarkBlue);
    GrRectFill(&sContext, &sRect);

    //
    // Put a white box around the banner.
    //
    GrContextForegroundSet(&sContext, ClrWhite);
    GrRectDraw(&sContext, &sRect);

    //
    // Put the application name in the middle of the banner.
    //
    GrContextFontSet(&sContext, &g_sFontCm20);
    GrStringDrawCentered(&sContext, "grlib demo", -1,
                         GrContextDpyWidthGet(&sContext) / 2, 8, 0);

    //
    // Add the title block and the previous and next buttons to the widget
    // tree.
    //
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sPrevious);
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sTitle);
    WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sNext);

    //
    // Add the first panel to the widget tree.
    //
    g_ulPanel = 0;
    WidgetAdd(WIDGET_ROOT, (tWidget *)g_psPanels);
    CanvasTextSet(&g_sTitle, g_pcPanelNames[0]);

    //
    // Issue the initial paint request to the widgets.
    //
    WidgetPaint(WIDGET_ROOT);

    //
    // Loop forever handling widget messages.
    //
    while(1)
    {
        //
        // Process any messages in the widget message queue.
        //
        WidgetMessageQueueProcess();
    }
}
Exemplo n.º 16
0
/**
 * Initializes the FPU with lazy stacking enabled
 **/
void twe_initFPUlazy(void) {
	// Lazy Stacking increases interrupt latency and stack usage
	//  (only need if doing floating pt. in interrupts)
	FPULazyStackingEnable();
	FPUEnable();
}
Exemplo n.º 17
0
/**
 * Initializes the FPU
 **/
void twe_initFPU(void) {
	FPUEnable();
}
Exemplo n.º 18
0
/*
 * initialize tm4c
 */
void init_satellite()
{
	FPUEnable();
	FPULazyStackingEnable();

	/*
	 * init clock
	 */
	MAP_SysCtlClockSet(SYSCTL_SYSDIV_3 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ | SYSCTL_OSC_MAIN);	//66.6..MHz

	MAP_IntMasterEnable();

	/*
	 * Enable peripherals
	 */
	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);	//for LED indication

	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);	//for UART
	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);

	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);	//for IRQ and SW_EN
	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);	//for SPI


	/*
	 * configure
	 */
	MAP_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3);
	MAP_GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, SIGNAL_LOW);	//off

	MAP_GPIOPinConfigure(GPIO_PA0_U0RX);
	MAP_GPIOPinConfigure(GPIO_PA1_U0TX);
	MAP_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
	UARTStdioConfig(UART_PORT, UART_BAUDRATE, SysCtlClockGet());


	MAP_GPIOIntDisable(GPIO_PORTB_BASE, SIGNAL_HIGH);	//interrupt disable

	MAP_GPIOPinTypeGPIOInput(GPIO_PORTB_BASE, GPIO_PIN_2);	//IRQ as input
	MAP_GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_2, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
	MAP_GPIOIntTypeSet(GPIO_PORTB_BASE, GPIO_PIN_2, GPIO_FALLING_EDGE);		//enable interrupt

	MAP_GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_5);	//sw enable
	MAP_GPIODirModeSet(GPIO_PORTB_BASE, GPIO_PIN_5, GPIO_DIR_MODE_OUT);
	MAP_GPIOPadConfigSet(GPIO_PORTB_BASE, GPIO_PIN_5, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);

	MAP_GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_5, SIGNAL_LOW);

	MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
	MAP_GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, GPIO_PIN_0);

	MAP_GPIOPadConfigSet(GPIO_PORTE_BASE, GPIO_PIN_0, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
	MAP_GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_0, SIGNAL_HIGH);	//chip select

	MAP_GPIOIntEnable(GPIO_PORTB_BASE, GPIO_PIN_2);	//enable interrupt for WLAN_IRQ pin

	SpiCleanGPIOISR();	//clear interrupt status

	MAP_IntEnable(INT_GPIOB);	//spi


	init_worker();

	setState(READY);
}
Exemplo n.º 19
0
int
main(void)
{
	char cThisChar;
			/* Result code */

	unsigned long ulResetCause;

	//SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
	SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
				SYSCTL_XTAL_16MHZ);
	unsigned long g=SysCtlClockGet();

	FPUEnable();
	FPUStackingEnable();
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
	GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3);
	ulResetCause = SysCtlResetCauseGet();
	SysCtlResetCauseClear(ulResetCause);
	HibernateEnableExpClk(SysCtlClockGet());
	ButtonsInit();
	SysTickPeriodSet(SysCtlClockGet() / APP_SYSTICKS_PER_SEC);
	SysTickEnable();
	SysTickIntEnable();
	IntMasterEnable();

	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
	GPIOPinConfigure(GPIO_PC4_U4RX);
	GPIOPinConfigure(GPIO_PC5_U4TX);
	GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);
	UARTConfigSetExpClk(UART4_BASE, SysCtlClockGet(), 115200,
			(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
					UART_CONFIG_PAR_NONE));

	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
	GPIOPinConfigure(GPIO_PB0_U1RX);
	GPIOPinConfigure(GPIO_PB1_U1TX);

	GPIOPinTypeUART(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);

	UARTConfigSetExpClk(UART1_BASE, SysCtlClockGet(), 9600, (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
						UART_CONFIG_PAR_NONE));

	//Orden al PGS de que me devuelva solo un mensaje..
	for(i=0; i<sizeof(buferA); i++){
			UARTCharPut(UART1_BASE, buferA[i]);}

	GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2, 0);

	rc = f_mount(0, &Fatfs);					//registra un area de trabajo
	rc = f_open(&Fil, "BuffGPS.TXT", FA_WRITE | FA_CREATE_ALWAYS);	//abre o crea un archivo


	do {


    int contador1=0;
    cThisChar='0';

    	do{

    	cThisChar=UARTCharGet(UART1_BASE);
		BuffGPS[contador1]=cThisChar;
		contador1=contador1+1;

    	} while((cThisChar != '\n'));

    	cThisChar='0';

		for(i=0; i<sizeof(cuaternion); i++){
			UARTCharPut(UART4_BASE, cuaternion[i]);}

				do{

		    	cThisChar=UARTCharGet(UART4_BASE);
		    	BuffGPS[contador1]=cThisChar;
				contador1=contador1+1;

					} while((cThisChar != '\n'));

		rc = f_write(&Fil, &BuffGPS, contador1, &bwGPS);
		rc = f_sync(&Fil);
		contador1=0;

		//while(UARTCharsAvail(UART1_BASE)==false){;}
	}

	while(1);
}
Exemplo n.º 20
0
 int main(void)
{
  unsigned long last_telemtry;
  char pbuff[100];
  long lTemp;

  //
  // The FPU should be enabled because some compilers will use floating-
  // point registers, even for non-floating-point code.  If the FPU is not
  // enabled this will cause a fault.  This also ensures that floating-
  // point operations could be added to this application and would work
  // correctly and use the hardware floating-point unit.  Finally, lazy
  // stacking is enabled for interrupt handlers.  This allows floating-
  // point instructions to be used within interrupt handlers, but at the
  // expense of extra stack usage.
  //
  FPUEnable();
  FPULazyStackingEnable();

  HardwareInit();
  SoftwareInit();
  //last_telemtry = g_ulTickCount;

  while(1)
  {

		
    	// Execute main loop to interpretation protocol command	    
    	MainModeLoop();	
		
		EncoderTick(QEI0_BASE); // PITCH Encoder	  
		EncoderTick(QEI1_BASE); // ROLL Encoder

		#if 0
		// restrict telemtry to about 10Hz, 
		if ((g_ulTickCount - last_telemtry) > 10)
		//if(magready)
		{	 
			last_telemtry = g_ulTickCount;
			eCompassCalculate();

			
			sprintf(pbuff,"%.2f,%.2f, ACC: %hd,%hd,%hd MAG: %hd,%hd,%hd\r\n",fRho6DOF,fFitErrorpc,iGpx,iGpy,iGpz,iBpx,iBpy,iBpz);
			UART0Send(pbuff, strlen(pbuff));

			//sprintf(pbuff,"%.2f,%.2f,%.2f,%.2f, ACC: %hd,%hd,%hd MAG: %hd,%hd,%hd\r\n",fRho6DOF,fPhi6DOF,fThe6DOF,fPsi6DOF,iGpx,iGpy,iGpz,iBpx,iBpy,iBpz);
			//UART0Send(pbuff, strlen(pbuff));

			//sprintf(pbuff,"%.2f,%.2f,%.2f,%.2f,ACC: %hd,%hd,%hd MAG: %hd,%hd,%hd\r\n",fRho6DOF,fPhi6DOF,fThe6DOF,fPsi6DOF,iGpx,iGpy,iGpz,iBpx,iBpy,iBpz);
			//UART0Send(pbuff, strlen(pbuff));

			//sprintf(pbuff,"ROLL %.2f,PITCH %.2f,YAW %.2f\r\n",fPhi6DOF,fThe6DOF,fPsi6DOF);
			//UART0Send(pbuff, strlen(pbuff));
			
			//sprintf(pbuff,"Phi %.2f The %.2f Psi %.2f Rho %.2f delta %.2f\n", fPhi6DOF, fThe6DOF, fPsi6DOF, fRho6DOF, fdelta6DOF);
			//sprintf(pbuff,"%lu,%.2f\r\n",g_ulTickCount,fRho6DOF);	
			//UART0Send(pbuff, strlen(pbuff)); 


		}
		#endif	
		
		if(itgready == true)
		{
		    //DEBUG_TP6(0);
						
			/*------------------------------------------------------------*/
			/* ITG3200getXYZ() time is 30~ microsecond						   */
			/*------------------------------------------------------------*/	
			ITG3200getXYZ();
						
			#ifdef USE_BMA180_INTERRUPT
			/*------------------------------------------------------------*/
			/* BMA180GetXYZ() time is 30~ microsecond						   */
			/*------------------------------------------------------------*/				
			//BMA180GetXYZ(); 		

			/*------------------------------------------------------------*/
			/* ITG3200getXYZ() time is 30~ microsecond						   */
			/*------------------------------------------------------------*/	
			//MAG3110getXYZ();
			eCompassCalculate();
			/*------------------------------------------------------------*/
			/* AHRS() time is 25~ microsecond		   						    */
			/*------------------------------------------------------------*/					
			AHRS();
			
			#endif
			
			if(g_tbstabilizer == true)
			{
				/*------------------------------------------------------------*/
				/* Stabilize() time is 4~ microsecond								  */
				/*------------------------------------------------------------*/						
				//Stabilize(ROLL_MOTOR);
				/*------------------------------------------------------------*/
				/* Stabilize() time is 4~ microsecond								  */
					
				/*------------------------------------------------------------*/									
				//Stabilize(PITCH_MOTOR);
				/*------------------------------------------------------------*/
				/* Total time is 115~ microsecond test by EranS 						*/
				/* Gyro and Encoder dose not test yet. Need testing with new board			*/
				/*------------------------------------------------------------*/		
			}		


	}	
	//DEBUG_TP6(0);



	#if 0
	if(1)//new_adc == true)
	{
	    new_adc=false;
	    //PitchAmp = (float)PitchRollAmp[PITCH_MOTOR];
		//PitchAmp = (PitchAmp /FULL_SCALE_BIT)*3; // 2Exp12 * 3V
		//PitchAmp = PitchAmp / 5;
		//PitchAmp*=1000;
		//sprintf(pbuff,"%.2fmA\r\n",PitchAmp);
		//sprintf(pbuff,"%lu,%u,%u\r\n",g_ulTickCount,PitchRollAmp[PITCH_MOTOR],PitchRollAmp[ROLL_MOTOR]);	
		sprintf(pbuff,"%.2f\r\n",y_rate_roll);
		//sprintf(pbuff,"%lu,%lu\r\n",g_ulTickCount,g_ulAverage);
		
		UART0Send(pbuff, strlen(pbuff)); 
	
	}
	#endif
	
	

  }
}
Exemplo n.º 21
0
/******************************************************************
 * 			Main-function
 */
int main(void) {

	/**************************************
	 * 	Set the clock to run at 80 MHz
	 */
	SysCtlClockSet(SYSCTL_SYSDIV_2_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);

	/**************************************
	 * 	Enable the floating-point-unit
	 */
	FPUEnable();
	// We also want Lazystacking, so enable that too
	FPULazyStackingEnable();
	// We also want to put numbers close to zero to zero
	FPUFlushToZeroModeSet(FPU_FLUSH_TO_ZERO_EN);

	/**************************************
	 * 	Init variables
	 */
	uint16_t mapData[MAP_DATA_SIZE];
	uint8_t stepDir = 0;

	/**************************************
	 * 	Init peripherals used
	 */
	bluetooth_init();
	init_stepper();							// Init the GPIOs used for the stepper and loading LED
	InitI2C1();								// Init the communication with the lidar-unit through I2C
	InitPWM();
	setupTimers();

	/**************************************
	 * 	State 2
	 */
	// Disable the timers that are used
	disableTimer(TIMER1_BASE);
	disableTimer(TIMER2_BASE);

	// Enable all interrupts
	IntMasterEnable();
	/**************************************
	 * 	State 3
	 */
	// Indicate we should start with a scan regardless of what other things we have already got
	// from UART-interrupt
	// This means setting the appropriate bit in the status vector
	stat_vec |= TAKE_MEAS;

	/**************************************
	 * 	State 4
	 */
	// Contains main-loop where decisions should be made
	for ( ; ; ) {
		/**********************************
		 * 	Decision tree
		 */
		// Highest priority case first


		// Check both interrupts at each iteration in the loop
		if ( int_vec & UART_INT ) {
			// Reset the indication
			int_vec &= ~UART_INT;

			// Remove drive-stop flag to enable movement
			stat_vec &= ~DRIVE_STOP;

			// Init data array
			uint8_t dataArr[MAX_UART_MSG_SIZE];

			// Collect the message
			if ( readUARTMessage(dataArr, MAX_UART_MSG_SIZE) < SUCCESS ) {
				// If we have recieved more data than fits in the vector we should simply
				// go in here again and grab data
				int_vec |= UART_INT;
			}
			// We have gathered a message
			// and now need to determine what the message is
			parseMsg(dataArr, MAX_UART_MSG_SIZE);
		}
		// Checking drive (movement) interrupt
		if ( int_vec & TIMER2_INT ) {
			int_vec &= ~TIMER2_INT;
			// Disable TIMER2
			disableTimer(TIMER2_BASE);
			// Set drive-stop in status vector
			stat_vec |= DRIVE_STOP;
		}
		// Checking measure interrupt
		if ( int_vec & TIMER1_INT ) {
			int_vec &= ~TIMER1_INT;
			// Disable TIMER1
			disableTimer(TIMER1_BASE);

			// Take reading from LIDAR
			mapData[stepCount++] = readLidar();
			SysCtlDelay(2000);

			// Take step
			// Note: We need to take double meas at randvillkor (100) !!!!!
			if ( stepCount > 0 && stepCount < 100 ) {
				stepDir = 1;
			}
			else if ( stepCount >= 100 && stepCount < 200) {
				stepDir = 0;
			}
			else {
				stepDir = 1;
				stepCount = 0;

				// Reset busy-flag
				stat_vec &= ~TAKE_MEAS;
			}
			step = takeStep(step, stepDir);

			// Request reading from LIDAR
			reqLidarMeas();

			if ( stat_vec & TAKE_MEAS ) {
				// Restart TIMER1
				enableTimer(TIMER1_BASE, (SYSCLOCK / MEASUREMENT_DELAY));
			}
			else {
				sendUARTDataVector(mapData, MAP_DATA_SIZE);
				stat_vec &= ~BUSY;
			}
		}

		// Check the drive_stop flag, which always should be set unless we should move
		if ( stat_vec & DRIVE_STOP ) {
			// Stop all movement
			SetPWMLevel(0,0);
			halt();

			// MAKE SURE all drive-flags are not set
			stat_vec &= ~(DRIVE_F | DRIVE_L | DRIVE_R | DRIVE_LL | BUSY);
		}
		// Should we drive?
		else if ( stat_vec & DRIVE ) {
			// Remove drive flag
			stat_vec &= ~DRIVE;
			// Increase PWM
			increase_PWM(0,MAX_FORWARD_SPEED,0,MAX_FORWARD_SPEED);
			if ( stat_vec & DRIVE_F ) {
				enableTimer(TIMER2_BASE, DRIVE_FORWARD_TIME);
			}
			else if ( stat_vec & DRIVE_LL ) {
				enableTimer(TIMER2_BASE, DRIVE_TURN_180_TIME);
			}
			else {
				enableTimer(TIMER2_BASE, DRIVE_TURN_TIME);
			}
		}
		if ( !(stat_vec & BUSY) ) {
			// Tasks
			switch ( stat_vec ) {
				case ((uint8_t)DRIVE_F) :
					// Call drive function
					go_forward();
					// Set the drive flag & BUSY
					stat_vec |= DRIVE | BUSY;
					break;
				case ((uint8_t)DRIVE_L) :
					// Call drive-left function
					go_left();
					// Set the drive flag
					stat_vec |= DRIVE | BUSY;
					break;
				case ((uint8_t)DRIVE_R) :
					// Call drive-right function
					go_right();
					// Set the drive flag
					stat_vec |= DRIVE | BUSY;
					break;
				case ((uint8_t)DRIVE_LL) :
					// Call turn 180-degrees function
					go_back();
					// Set the drive flag
					stat_vec |= DRIVE | BUSY;
					break;
				case ((uint8_t)TAKE_MEAS) :
					// Request reading from LIDAR
					reqLidarMeas();
					// Start TIMER1
					enableTimer(TIMER1_BASE, (SYSCLOCK / MEASUREMENT_DELAY)); // if sysclock = 1 s, 1/120 = 8.3 ms
					// We are busy
					stat_vec |= BUSY;
					break;

				default:
					break;
			}
		}
	}
}
Exemplo n.º 22
0
int main(void) {
    // Status of Hibernation module
    uint32_t ui32Status = 0;
    // Length of time to hibernate
    uint32_t hibernationTime = 600;

    g_ui32SysClock = SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
            SYSCTL_OSC_MAIN | SYSCTL_USE_PLL |
            SYSCTL_CFG_VCO_480), 120000000);


    //*************************************************************************
    //! I/O config and setup
    //*************************************************************************

    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);	// UART
    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART7);	// UART
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);	// UART0
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);	// UART7
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);	// SSI
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);	// GPIO
    SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI2);		// SSI
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);	// GPIO
    SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);// Hibernation

    // UART0 and UART7
    GPIOPinConfigure(GPIO_PA0_U0RX);
    GPIOPinConfigure(GPIO_PC4_U7RX);
    GPIOPinConfigure(GPIO_PA1_U0TX);
    GPIOPinConfigure(GPIO_PC5_U7TX);

    GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
    GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);

    // LED indicators
    GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE, GPIO_PIN_0 | GPIO_PIN_1);

    //
    // SD Card Detect (PK3) and GPS Pulse Per Second (PK2)
    //
    GPIOPinTypeGPIOInput(GPIO_PORTK_BASE, GPIO_PIN_2|GPIO_PIN_3);
    // Pulse Per Second input pin config as weak pull-down
    GPIOPadConfigSet(GPIO_PORTK_BASE,GPIO_PIN_2,GPIO_STRENGTH_2MA,GPIO_PIN_TYPE_STD_WPD);
    // Pulse Per Second input pin config as rising edge triggered interrupt
    GPIOIntTypeSet(GPIO_PORTK_BASE,GPIO_PIN_2,GPIO_RISING_EDGE);
    // Register Port K as interrupt
    GPIOIntRegister(GPIO_PORTK_BASE, PortKIntHandler);
    // Enable Port K pin 2 interrupt
    GPIOIntEnable(GPIO_PORTK_BASE, GPIO_INT_PIN_2);
    //
    // Disable PPS pin interrupt by default
    //
    if(IntIsEnabled(INT_GPIOK)) {
            IntDisable(INT_GPIOK);
    }

    GPIOPinConfigure(GPIO_PD0_SSI2XDAT1);
    GPIOPinConfigure(GPIO_PD1_SSI2XDAT0);
    GPIOPinConfigure(GPIO_PD2_SSI2FSS);
    GPIOPinConfigure(GPIO_PD3_SSI2CLK);

    // SD Card Detect (CD) - weak pull-up input
    GPIOPadConfigSet(GPIO_PORTK_BASE, GPIO_PIN_3, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);

    // Debug UART output config
    UARTConfigSetExpClk(UART0_BASE, g_ui32SysClock, 115200,
            (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));

    // GPS UART input config
    UARTConfigSetExpClk(UART7_BASE, g_ui32SysClock, 9600,
            (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));

    //
    // Configure SysTick for a 100Hz interrupt.
    //
    SysTickPeriodSet(g_ui32SysClock / 100);
    SysTickIntEnable();
    SysTickEnable();

    //
    // Floating point enable
    //
    FPUEnable();
    FPULazyStackingEnable();

    //
    // Clear user LEDs
    //
    GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_0 | GPIO_PIN_1, 0x00);

    //*************************************************************************
    //! Hibernation mode checks and setup
    //*************************************************************************

    //
    // Check to see if Hibernation module is already active, which could mean
    // that the processor is waking from a hibernation.
    //
    if(HibernateIsActive()) {
        //
        // Read the status bits to see what caused the wake.  Clear the wake
        // source so that the device can be put into hibernation again.
        //
        ui32Status = HibernateIntStatus(0);
        HibernateIntClear(ui32Status);

        //
        // Wake was due to RTC match.
        //
        if(ui32Status & HIBERNATE_INT_RTC_MATCH_0) {
            //
            // TODO: add IMU check
            //
        }
        //
        // Wake was due to the External Wake pin.
        //
        else if(ui32Status & HIBERNATE_INT_PIN_WAKE) {
            //
            // Switch off low power mode
            //
            lowPowerOn = 0;
        }
    }

    //
    // Configure Hibernate module clock.
    //
    HibernateEnableExpClk(g_ui32SysClock);

    //
    // If the wake was not due to the above sources, then it was a system
    // reset.
    //
    if(!(ui32Status & (HIBERNATE_INT_PIN_WAKE | HIBERNATE_INT_RTC_MATCH_0))) {
        //
        // Configure the module clock source.
        //
        HibernateClockConfig(HIBERNATE_OSC_LOWDRIVE);
    }

    //
    // Enable PPS for a single data log. Interrupt on next PPS logic high.
    //
    ppsDataLog();

    //
    // Enable RTC mode.
    //
    HibernateRTCEnable();

    //
    // Loop forever
    //
    while(1) {
        //
        // If low power mode is set (default), hibernate again
        // If not, spin in nested while(1) for faster updates from PPS pin ints.
        //
        if(lowPowerOn) {
            lowPowerMode(hibernationTime);
        }
        else {
            if(!IntIsEnabled(INT_GPIOK)) {
                    IntEnable(INT_GPIOK);
            }
            while(1) {
            }
        }
    }
} // End function main
Exemplo n.º 23
0
Arquivo: main.c Projeto: Teider/QuIES
//*****************************************************************************
//
// This example application demonstrates the use of the timers to generate
// periodic interrupts.
//
//*****************************************************************************
int
main(void)
{
    //
    // Enable lazy stacking for interrupt handlers.  This allows floating-point
    // instructions to be used within interrupt handlers, but at the expense of
    // extra stack usage.
    //
		FPUEnable();
		FPULazyStackingEnable();

    //
    // Set the clocking to run directly from the crystal.
    //
    SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
                       SYSCTL_XTAL_16MHZ);
	
		//
    // Enable processor interrupts.
    //
    IntMasterEnable();

    //
    // Initialize the UART and write status.
    //
    ConfigureUART();
		ConfigureXBeeUART();
		ConfigureUARTSensores();
		ButtonsInit();
		inicializa_motores();

    //
    // Enable the peripherals used by this example.
    //
    SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);

    //
    // Configure the two 32-bit periodic timers.
    //
    TimerConfigure(TIMER1_BASE, TIMER_CFG_PERIODIC);
    TimerLoadSet(TIMER1_BASE, TIMER_A, SysCtlClockGet()/200000);
		
		
    //
    // Setup the interrupts for the timer timeouts.
    //
    IntEnable(INT_TIMER1A);
   
    TimerIntEnable(TIMER1_BASE, TIMER_TIMA_TIMEOUT);

    //
    // Enable the timers.
    //
		
    TimerEnable(TIMER1_BASE, TIMER_A);


		// Configure a wide timer for timing purposes
		
		SysCtlPeripheralEnable(SYSCTL_PERIPH_WTIMER0);
		TimerConfigure(WTIMER0_BASE, TIMER_CFG_PERIODIC_UP);
		TimerLoadSet64(WTIMER0_BASE, (((long long)1) << 60));
		TimerEnable(WTIMER0_BASE, TIMER_A);
	
	int counter_verify_no_ar = 0;
	
	while(1) {
		SysCtlDelay(SysCtlClockGet() / 1000);
		checkButtons();
		
		readPackage();
		
		counter_verify_no_ar++;
		
		if (counter_verify_no_ar == 1000) {
			counter_verify_no_ar = 0;
			if (no_ar) {
				enviaNoAr();
				no_ar = false;
			}
			if (no_chao) {
				enviaNoChao();
				no_chao = false;
			}
		}
	}
}
Exemplo n.º 24
0
//*****************************************************************************
//
// This example demonstrates how to send a string of data to the UART.
//
//*****************************************************************************
int main(void) {
	//
	// Enable lazy stacking for interrupt handlers.  This allows floating-point
	// instructions to be used within interrupt handlers, but at the expense of
	// extra stack usage.
	//
	FPUEnable();
	FPULazyStackingEnable();

	//
	// Set the clocking to run directly from the crystal.
	//
	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);

	//
	// Enable the peripherals used by this example.
	//
	SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
	SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);

	//
	// Enable processor interrupts.
	//
	IntMasterEnable();

	//
	// Set GPIO A0 and A1 as UART pins.
	//
	GPIOPinConfigure(GPIO_PA0_U0RX);
	GPIOPinConfigure(GPIO_PA1_U0TX);
	GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);

	//
	// Configure the UART for 115,200, 8-N-1 operation.
	//
	UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), 115200,
			(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));

	//
	// Enable the UART interrupt.
	//
	IntEnable(INT_UART0);
	UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);

	//
	// Prompt for text to be entered.
	//
	UARTSend((unsigned char *) "Enter text: ", 14);

	//
	// Loop forever echoing data through the UART.
	//
	while (1) {
	}
}