Example #1
0
/**
 * Main function
 *
 * This is the traditional C main().
 */
int main(void)
{

#if USE_PROGRAM_STARTUP
	program_startup();
#else
	char s[64];		/* sprintf string */
	unsigned long why;	/* Why did we get reset? Why? */

	prvSetupHardware();
	init_logger();

#if PART == LM3S8962
	RIT128x96x4Init(1000000);
#endif

	/*
	 * \todo maybe this needs to be earlier or later in the code.
	 * Enable fault handlers in addition to FaultIsr()
	 */
	NVIC_SYS_HND_CTRL_R |= NVIC_SYS_HND_CTRL_USAGE
			              |NVIC_SYS_HND_CTRL_BUS
			              |NVIC_SYS_HND_CTRL_MEM;

#if (PART != LM3S2110)
	/*
	 * Allow the following to erase the permanent configuration flash page:
	 *
	 * make PROTECT_PERMCFG="-D PROTECT_PERMCFG=0" \
	 * ERASE_PERMCFG="-D ERASE_PERMCFG=1"
	 *
	 * The program will continue to erase the permanent configuration structure
	 * at every powerup, so the program must be recompiled without the
	 * ERASE_PERMCFG=1 part and reloaded to allow a permanent configuration
	 * record to persist through power cycles.
	 */
#if ERASE_PERMCFG
#if !PROTECT_PERMCFG

	if (permcfg_erase()) {
#if (PART == LM3S8962)
		RIT128x96x4StringDraw("permcfg Blank",
							0, RITLINE(10), 15);
#endif
	}
	else {
#if (PART == LM3S8962)
		RIT128x96x4StringDraw("permcfg Not Blank",
							0, RITLINE(10), 15);
#endif
	}
#endif
#endif

	config_init();
#endif
	/**
	 * \req \req_id The \program \shall identify:
	 * - The program version.
	 * - A copyright string.
	 * - The board identification.
	 * - The assembly identification.
	 * - Network configuration information.
	 *
	 * \todo Issue #1175 Add software build time, git hash, software
	 *    version to build.
	 */
	lstr("\r\nCRI Quickstart\r\n");
#if (PART == LM3S2110)
	lstr("LM3S2110 Eval Board\r\n");
#elif (PART == LM3S8962)
	lstr("LM3S8962 Eval Board\r\n");
#elif (PART == LM3S9B96)
	lstr("LM3S9B96 Eval Board\r\n");
#endif
	lstr("Copyright (C) 2011 Consolidated Resource Imaging\r\n");

	lprintf("   Software Build Date: %s\n", buildDate);
#if (PART != LM3S2110)
	lprintf("  Assembly Part Number: %s\n", usercfg.assy_pn);
	lprintf("Assembly Serial Number: %s\n", usercfg.assy_sn);
	lprintf("     Board Part Number: %s\n", permcfg.bd_pn);
	lprintf("   Board Serial Number: %s\n", permcfg.bd_sn);
	lprintf("Notes:\r\n %s\r\n", usercfg.notes);
#endif
#if (PART == LM3S8962)
	/*
	 * Display our configuration on the OLED display.
	 */
	RIT128x96x4StringDraw("CRI Quickstart", 0, RITLINE(0), 15);
	RIT128x96x4StringDraw("LM3S8962", 0, RITLINE(1), 15);
	/*
	 * Split date
	 * 0123456789012345678901234567890
	 * Sun, 08 May 2011 19:05:42 -0400
	 *
	 * into:
	 * 0123456789012345678901234567890
	 * Sun, 08 May 2011
	 *
	 * and
	 *
	 * 0123456789012345678901234567890
	 *                  19:05:42 -0400
	 */
	strcpy(s,buildDate);
	s[16]=0;
	RIT128x96x4StringDraw(s, 0, RITLINE(2), 15);
	RIT128x96x4StringDraw(&s[17], 0, RITLINE(3), 15);
#endif

	/**
	 * \req \req_id The \program \shall identify:
	 * - The reason for the reset.
	 */
	why = SysCtlResetCauseGet();
	if (why != 0) {
		SysCtlResetCauseClear(why);

		lprintf("Reset reason: ");
		if (why & SYSCTL_CAUSE_LDO)
			lprintf("LDO ");
		if (why & SYSCTL_CAUSE_SW)
			lprintf("SW ");
		if (why & SYSCTL_CAUSE_WDOG)
			lprintf("WDOG ");
		if (why & SYSCTL_CAUSE_BOR)
			lprintf("Brown-out ");
		if (why & SYSCTL_CAUSE_POR)
			lprintf("Power-on ");
		if (why & SYSCTL_CAUSE_EXT)
			lprintf("External ");
		lprintf("\r\n");
	}

	io_init();

#endif

	util_init();

	/**
	 * \req \req_tcpip The \program \shall support TCP/IP communications.
	 *
	 * Create the LWIP task if running on a processor that includes a MAC
	 * and PHY.
	 */

#if QUICK_ETHERNET

	if( SysCtlPeripheralPresent( SYSCTL_PERIPH_ETH ) ) {
		xTaskCreate(ethernetThread,
			    (signed char *)"eth-init",
			    DEFAULT_STACK_SIZE,
			    NULL,
			    ETH_INIT_PRIORITY,
			    NULL);
	}
#endif

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

	vSetupHighFrequencyTimer();
	vTaskStartScheduler();
	DPRINTF(0,"Idle Task Create Failed.");

	/*
	 * Will only get here if there was insufficient memory to create the
	 * idle task.
	 */

	for( ;; );
	return 0;
}
Example #2
0
//*****************************************************************************
//
// Main function performs init and manages system.
//
// Called automatically after the system and compiler pre-init sequences.
// Performs system init calls, restores state from hibernate if needed and
// then manages the application context duties of the system.
//
//*****************************************************************************
int
main(void)
{
    uint32_t ui32Status;
    uint32_t ui32ResetCause;
    int32_t i32CommandStatus;

    //
    // Enable stacking for interrupt handlers.  This allows floating-point
    // instructions to be used within interrupt handlers, but at the expense of
    // extra stack usage.
    //
    ROM_FPUEnable();
    ROM_FPUStackingEnable();

    //
    // Set the system clock to run at 40Mhz off PLL with external crystal as
    // reference.
    //
    ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
                       SYSCTL_OSC_MAIN);

    //
    // Enable the hibernate module
    //
    SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);

    //
    // Enable and Initialize the UART.
    //
    ConfigureUART();

    UARTprintf("Welcome to the Tiva C Series TM4C123G LaunchPad!\n");
    UARTprintf("Type 'help' for a list of commands\n");
    UARTprintf("> ");

    //
    // Determine why system reset occurred and respond accordingly.
    //
    ui32ResetCause = SysCtlResetCauseGet();
    SysCtlResetCauseClear(ui32ResetCause);
    if(ui32ResetCause == SYSCTL_CAUSE_POR)
    {
        if(HibernateIsActive())
        {
            //
            // Read the status bits to see what caused the wake.
            //
            ui32Status = HibernateIntStatus(0);
            HibernateIntClear(ui32Status);

            //
            // Wake was due to the push button.
            //
            if(ui32Status & HIBERNATE_INT_PIN_WAKE)
            {
                UARTprintf("Hibernate Wake Pin Wake Event\n");
                UARTprintf("> ");

                //
                // Recover the application state variables from battery backed
                // hibernate memory.  Set ui32Mode to normal.
                //
                HibernateDataGet((uint32_t*) &g_sAppState,
                                 sizeof(tAppState) / 4 + 1);
                g_sAppState.ui32Mode = APP_MODE_NORMAL;
            }

            //
            // Wake was due to RTC match
            //
            else if(ui32Status & HIBERNATE_INT_RTC_MATCH_0)
            {
                UARTprintf("Hibernate RTC Wake Event\n");
                UARTprintf("> ");
                //
                // Recover the application state variables from battery backed
                // hibernate memory. Set ui32Mode to briefly flash the RGB.
                //
                HibernateDataGet((uint32_t*) &g_sAppState,
                                sizeof(tAppState) / 4 + 1);
                g_sAppState.ui32Mode = APP_MODE_HIB_FLASH;
            }
        }

        else
        {
            //
            // Reset was do to a cold first time power up.
            //
            UARTprintf("Power on reset. Hibernate not active.\n");
            UARTprintf("> ");

            g_sAppState.ui32Mode = APP_MODE_NORMAL;
            g_sAppState.fColorWheelPos = 0;
            g_sAppState.fIntensity = APP_INTENSITY_DEFAULT;
            g_sAppState.ui32Buttons = 0;
        }
    }
    else
    {
        //
        // External Pin reset or other reset event occured.
        //
        UARTprintf("External or other reset\n");
        UARTprintf("> ");

        //
        // Treat this as a cold power up reset without restore from hibernate.
        //
        g_sAppState.ui32Mode = APP_MODE_NORMAL;
        g_sAppState.fColorWheelPos = APP_PI;
        g_sAppState.fIntensity = APP_INTENSITY_DEFAULT;
        g_sAppState.ui32Buttons = 0;

    //
        // colors get a default initialization later when we call AppRainbow.
        //
    }

    //
    // Initialize clocking for the Hibernate module
    //
    HibernateEnableExpClk(SysCtlClockGet());

    //
    // Initialize the RGB LED. AppRainbow typically only called from interrupt
    // context. Safe to call here to force initial color update because
    // interrupts are not yet enabled.
    //
    RGBInit(0);
    RGBIntensitySet(g_sAppState.fIntensity);
    AppRainbow(1);
    RGBEnable();

    //
    // Initialize the buttons
    //
    ButtonsInit();

    //
    // Initialize the SysTick interrupt to process colors and buttons.
    //
    SysTickPeriodSet(SysCtlClockGet() / APP_SYSTICKS_PER_SEC);
    SysTickEnable();
    SysTickIntEnable();
    IntMasterEnable();

    //
    // spin forever and wait for carriage returns or state changes.
    //
    while(1)
    {

        UARTprintf("\n>");


        //
        // Peek to see if a full command is ready for processing
        //
        while(UARTPeek('\r') == -1)
        {
            //
            // millisecond delay.  A SysCtlSleep() here would also be OK.
            //
            SysCtlDelay(SysCtlClockGet() / (1000 / 3));

            //
            // Check for change of mode and enter hibernate if requested.
            // all other mode changes handled in interrupt context.
            //
            if(g_sAppState.ui32Mode == APP_MODE_HIB)
            {
                AppHibernateEnter();
            }
        }

        //
        // a '\r' was detected get the line of text from the user.
        //
        UARTgets(g_cInput,sizeof(g_cInput));

        //
        // Pass the line from the user to the command processor.
        // It will be parsed and valid commands executed.
        //
        i32CommandStatus = CmdLineProcess(g_cInput);

        //
        // Handle the case of bad command.
        //
        if(i32CommandStatus == CMDLINE_BAD_CMD)
        {
            UARTprintf("Bad command!\n");
        }

        //
        // Handle the case of too many arguments.
        //
        else if(i32CommandStatus == CMDLINE_TOO_MANY_ARGS)
        {
            UARTprintf("Too many arguments for command processor!\n");
        }
    }
}
Example #3
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);
}