Exemplo n.º 1
0
static void initHardware(void)
{
    SystemCoreClockUpdate();
    SysTick_Config(SystemCoreClock/1000);
    Board_Init();
    Board_LED_Set(0, false);

    /* Timer */
    Chip_TIMER_Init(LPC_TIMER1);
    Chip_TIMER_PrescaleSet(LPC_TIMER1,
#ifdef lpc1769
                           Chip_Clock_GetPeripheralClockRate(SYSCTL_PCLK_TIMER1) / 1000000 - 1
#else
                           Chip_Clock_GetRate(CLK_MX_TIMER1) / 1000000 - 1
#endif
                          );

    /* Match 0 (period) */
    Chip_TIMER_MatchEnableInt(LPC_TIMER1, 0);
    Chip_TIMER_ResetOnMatchEnable(LPC_TIMER1, 0);
    Chip_TIMER_StopOnMatchDisable(LPC_TIMER1, 0);
    Chip_TIMER_SetMatch(LPC_TIMER1, 0, 1000);

    /* Match 1 (duty) */
    Chip_TIMER_MatchEnableInt(LPC_TIMER1, 1);
    Chip_TIMER_ResetOnMatchDisable(LPC_TIMER1, 1);
    Chip_TIMER_StopOnMatchDisable(LPC_TIMER1, 1);
    Chip_TIMER_SetMatch(LPC_TIMER1, 1, 100);

    Chip_TIMER_Reset(LPC_TIMER1);
    Chip_TIMER_Enable(LPC_TIMER1);

    NVIC_EnableIRQ(TIMER1_IRQn);
}
Exemplo n.º 2
0
/* Get divider value */
STATIC Status getClkDiv(LPC_I2S_T *pI2S, I2S_AUDIO_FORMAT_T *format, uint16_t *pxDiv, uint16_t *pyDiv, uint32_t *pN)
{
    uint32_t pClk;
    uint32_t x, y;
    uint64_t divider;
    uint16_t dif;
    uint16_t xDiv = 0, yDiv = 0;
    uint32_t N;
    uint16_t err, ErrorOptimal = 0xFFFF;

    pClk = Chip_Clock_GetRate(CLK_APB1_I2S);

    /* divider is a fixed point number with 16 fractional bits */
    divider = (((uint64_t) (format->SampleRate) * 2 * (format->WordWidth) * 2) << 16) / pClk;
    /* find N that make x/y <= 1 -> divider <= 2^16 */
    for (N = 64; N > 0; N--) {
        if ((divider * N) < (1 << 16)) {
            break;
        }
    }
    if (N == 0) {
        return ERROR;
    }
    divider *= N;
    for (y = 255; y > 0; y--) {
        x = y * divider;
        if (x & (0xFF000000)) {
            continue;
        }
        dif = x & 0xFFFF;
        if (dif > 0x8000) {
            err = 0x10000 - dif;
        }
        else {
            err = dif;
        }
        if (err == 0) {
            yDiv = y;
            break;
        }
        else if (err < ErrorOptimal) {
            ErrorOptimal = err;
            yDiv = y;
        }
    }
    xDiv = ((uint64_t) yDiv * (format->SampleRate) * 2 * (format->WordWidth) * N * 2) / pClk;
    if (xDiv >= 256) {
        xDiv = 0xFF;
    }
    if (xDiv == 0) {
        xDiv = 1;
    }

    *pxDiv = xDiv;
    *pyDiv = yDiv;
    *pN = N;
    return SUCCESS;
}
/* Determines best dividers to get a target baud rate */
Status Chip_UART_SetBaud(LPC_USART_Type *UARTx, uint32_t baudrate)
{
	uint32_t uClk;

	/* Get UART clock rate */
	uClk = Chip_Clock_GetRate(Chip_UART_DetermineClk(UARTx));

	return IP_UART_SetBaud(UARTx, baudrate, uClk);
}
/* Setup EEPROM clock */
STATIC void setClkDiv(LPC_EEPROM_T *pEEPROM)
{
	uint32_t clk;

	/* Setup EEPROM timing to 375KHz based on PCLK rate */
	clk = Chip_Clock_GetRate(CLK_MX_EEPROM);

	/* Set EEPROM clock divide value*/
	pEEPROM->CLKDIV = clk / EEPROM_CLOCK_DIV - 1;
}
Exemplo n.º 5
0
/* Initializes the EEPROM peripheral with specified parameter */
void Chip_EEPROM_Init(LPC_EEPROM_T *pEEPROM)
{
	uint32_t cclk;

	/* Setup EEPROM timing to 1500KHz based on CCLK rate */
	cclk = Chip_Clock_GetRate(CLK_MX_EEPROM);
	IP_EEPROM_Init(pEEPROM, cclk / EEPROM_CLOCK_DIV - 1);

	/* Setup EEPROM wait states*/
	IP_EEPROM_SetReadWaitState(pEEPROM, EEPROM_READ_WAIT_STATE_VAL);
	IP_EEPROM_SetWaitState(pEEPROM, EEPROM_WAIT_STATE_VAL);
}
Exemplo n.º 6
0
/* Initialize stopwatch */
void StopWatch_Init(void)
{
	/* Use timer 1. Set prescaler to divide by 8 */
	const uint32_t prescaleDivisor = 8;
	Chip_TIMER_Init(LPC_TIMER0);
	Chip_TIMER_PrescaleSet(LPC_TIMER0, prescaleDivisor - 1);
	Chip_TIMER_Enable(LPC_TIMER0);

	/* Pre-compute tick rate. */
	ticksPerSecond = Chip_Clock_GetRate(CLK_MX_TIMER0) / prescaleDivisor;
	ticksPerMs = ticksPerSecond / 1000;
	ticksPerUs = ticksPerSecond / 1000000;
}
Exemplo n.º 7
0
 /**
 * @brief	Main entry point
 * @return	Nothing
 */
int main(void)
{
	SPIFIobj *obj = &spifi_obj;
	uint32_t spifi_clk_mhz;
	SPIFIopers opers;
	int ret;
	spifi_rom_init(spifi);
	
	/* Initialize the board & LEDs for error indication */
	Board_Init();
	
	/* Since this code runs from SPIFI no special initialization required here */
	prepare_write_data(data_buffer, sizeof(data_buffer));

	spifi_clk_mhz = Chip_Clock_GetRate(CLK_MX_SPIFI) / 1000000;
	
	/* Typical time tCS is 20 ns min, we give 200 ns to be on safer side */
	if (spifi_init(obj, spifi_clk_mhz / 5, S_RCVCLK | S_FULLCLK, spifi_clk_mhz)) {
		DEBUGSTR("Error initializing SPIFI interface!\r\n");
		Board_LED_Set(1, 1);
		goto end_prog;
	}
	
	/* Prepare the operations structure */
	memset(&opers, 0, sizeof(SPIFIopers));
	opers.dest = (char *) SPIFI_WRITE_SECTOR_OFFSET;
	opers.length = sizeof(data_buffer);
	/* opers.options = S_VERIFY_PROG; */
	
	/* NOTE: All interrupts must be disabled before calling program as
	 * any triggered interrupts might attempt to run a code from SPIFI area
	 */
	ret = spifi_program(obj, (char *) data_buffer, &opers);
	if (ret) {
		DEBUGOUT("Error 0x%x: Programming of data buffer to SPIFI Failed!\r\n", ret);
		Board_LED_Set(1, 1);
		goto end_prog;
	}
	DEBUGSTR("SPIFI Programming successful!\r\n");

	if (verify_spifi_data((uint8_t *) SPIFI_WRITE_SECTOR_ADDRESS, sizeof(data_buffer))) {
		DEBUGSTR("Error verifying the SPIFI data\r\n");
		Board_LED_Set(1, 1);
		goto end_prog;
	}
	Board_LED_Set(0, 1);
	DEBUGSTR("SPIFI Data verified!\r\n");

end_prog:
	while(1) {__WFI();}
}
Exemplo n.º 8
0
/* Set timer interval value */
void Chip_RIT_SetTimerInterval_(LPC_RITIMER_T *pRITimer, uint32_t time_interval)
{
	uint32_t cmp_value;

	/* Determine aapproximate compare value based on clock rate and passed interval */
	cmp_value = ((Chip_Clock_GetRate(CLK_MX_RITIMER) / 1000) * time_interval )/ 1000;

	/* Set timer compare value */
	Chip_RIT_SetCOMPVAL(pRITimer, cmp_value);

	/* Set timer enable clear bit to clear timer to 0 whenever
	   counter value equals the contents of RICOMPVAL */
	Chip_RIT_EnableCTRL(pRITimer, RIT_CTRL_ENCLR);
}
Exemplo n.º 9
0
/**
 * @brief	Main entry point
 * @return	Nothing
 */
int main(void)
{
	uint32_t SCT_FRQ;

	Board_Init();

	/* Initialize SCT */
	Chip_SCT_Init(LPC_SCT);

	LPC_SCU->SFSCLK[3] = SCU_MODE_MODE_REPEATER | SCU_MODE_FUNC1;	/* function 1; CGU clk out, pull up */

	/* Attach IRC clock to divider B with a divider of 16 */
	Chip_Clock_SetDivider(CLK_IDIV_B, CLKIN_IRC, 16);

	/* Route divider B output to Clock output base clock and enable base out clock */
	Chip_Clock_SetBaseClock(CLK_BASE_OUT, CLKIN_IDIVB, true, false);

	/* Configure SCT pins */
	SCT_PinsConfigure();

	SCT_FRQ = Chip_Clock_GetRate(CLK_MX_SCT);
	DEBUGOUT("SCT_FRQ: %d\r\n", SCT_FRQ);

	Chip_SCT_ControlSetClr(LPC_SCT, SCT_CTRL_CLRCTR_L | SCT_CTRL_HALT_L | SCT_CTRL_PRE_L(256 - 1)
						   | SCT_CTRL_HALT_H | SCT_CTRL_CLRCTR_H | SCT_CTRL_PRE_H(256 - 1),
						   ENABLE);

	/* Now use the FSM code to configure the state machine */
	sct_fsm_init();

	/* initialize random seed: */
	srand(0x5EED);

	/*  12000000 / 256 / 16 = 2929 Hz
	 * 65535 / 2929 =~ 22 */
	/* generate a random delay from 1 to 22 seconds */
	delay = (rand() % 22 + 1) * 2929;

	NVIC_ClearPendingIRQ(SCT_IRQn);
	NVIC_EnableIRQ(SCT_IRQn);

	/* Start the SCT */
	Chip_SCT_ControlSetClr(LPC_SCT, SCT_CTRL_STOP_L | SCT_CTRL_HALT_L | SCT_CTRL_STOP_H | SCT_CTRL_HALT_H, DISABLE);

	while (1) {
		__WFI();
	}
}
Exemplo n.º 10
0
void vConfigureTimerForRunTimeStats( void )
{
	uint32_t timerFreq;

	/* Enable timer 1 clock and reset it */
	Chip_TIMER_Init(LPC_TIMER1);
	Chip_RGU_TriggerReset(RGU_TIMER1_RST);
	while (Chip_RGU_InReset(RGU_TIMER1_RST)) {}

	/* Get timer 1 peripheral clock rate */
	timerFreq = Chip_Clock_GetRate(CLK_MX_TIMER1);

	/* Timer setup for match and interrupt at TICKRATE_HZ */
	Chip_TIMER_Reset(LPC_TIMER1);
	Chip_TIMER_SetMatch(LPC_TIMER1, 1, (timerFreq / TICKRATE_HZ));
	Chip_TIMER_ResetOnMatchEnable(LPC_TIMER1, 1);
	Chip_TIMER_Enable(LPC_TIMER1);
}
/* Set the clock frequency for SSP interface */
void Chip_SSP_SetBitRate(LPC_SSP_T *pSSP, uint32_t bitRate)
{
	uint32_t ssp_clk, cr0_div, cmp_clk, prescale;

	ssp_clk = Chip_Clock_GetRate(Chip_SSP_GetClockIndex(pSSP));

	cr0_div = 0;
	cmp_clk = 0xFFFFFFFF;
	prescale = 2;

	while (cmp_clk > bitRate) {
		cmp_clk = ssp_clk / ((cr0_div + 1) * prescale);
		if (cmp_clk > bitRate) {
			cr0_div++;
			if (cr0_div > 0xFF) {
				cr0_div = 0;
				prescale += 2;
			}
		}
	}

	Chip_SSP_SetClockRate(pSSP, cr0_div, prescale);
}
Exemplo n.º 12
0
/** \brief Set timer interval value in microseconds */
void Chip_RIT_SetTimerIntervaluS(LPC_RITIMER_T *pRITimer, uint32_t time_interval_us)
{
	/** \details
	 * This method is a copy of Chip_RIT_SetTimerInterval provided by vendor, in which
	 * I made a minimal change to obtain a function that uses as parameter a number
	 * in microseconds to interrupt with the RIT timer
	 *
	 * \param LPC_RITIMER_T *pRITimer: pointer to the RIT timer.
	 * \param uint32_t time_interval_us: time interval in microseconds.
	 *
	 * \return nothing
	 * */
	uint32_t cmp_value;

	/* Determine approximate compare value based on clock rate and passed interval */
	cmp_value = (Chip_Clock_GetRate(CLK_MX_RITIMER)/1000000) * time_interval_us;

	/* Set timer compare value */
	Chip_RIT_SetCOMPVAL(pRITimer, cmp_value);

	/* Set timer enable clear bit to clear timer to 0 whenever
	   counter value equals the contents of RICOMPVAL */
	Chip_RIT_EnableCTRL(pRITimer, RIT_CTRL_ENCLR);
}
Exemplo n.º 13
0
/* Get divider value */
STATIC uint8_t getClkDiv(LPC_ADC_T *pADC, bool burstMode, uint32_t adcRate, uint8_t clks)
{
	uint32_t adcBlockFreq;
	uint32_t fullAdcRate;
	uint8_t div;

	/* The APB clock (PCLK_ADC0) is divided by (CLKDIV+1) to produce the clock for
	   A/D converter, which should be less than or equal to 4.5MHz.
	   A fully conversion requires (bits_accuracy+1) of these clocks.
	   ADC Clock = PCLK_ADC0 / (CLKDIV + 1);
	   ADC rate = ADC clock / (the number of clocks required for each conversion);
	 */
	adcBlockFreq = Chip_Clock_GetRate(Chip_ADC_GetClockIndex(pADC));
	if (burstMode) {
		fullAdcRate = adcRate * clks;
	}
	else {
		fullAdcRate = adcRate * getFullConvClk();
	}

	/* Get the round value by fomular: (2*A + B)/(2*B) */
	div = ((adcBlockFreq * 2 + fullAdcRate) / (fullAdcRate * 2)) - 1;
	return div;
}
Exemplo n.º 14
0
/**
 * @brief	Main entry point
 * @return	Nothing
 */
int main(void)
{
	bool bool_status;
	uint32_t mainpll_freq, clkin_frq, dive_value, baseclk_frq, perclk_frq;
	CHIP_CGU_CLKIN_T clk_in, base_input;
	bool autoblocken;
	bool powerdn;
	int i;
	volatile int k = 1;

	SystemCoreClockUpdate();
	Board_Init();

	/* Print the Demo Information */
	DEBUGOUT(menu);

	/* Main PLL should be locked, Check if Main PLL is locked */
	DEBUGOUT("=========================================== \r\n");
	DEBUGOUT("PLL functions \r\n");
	DEBUGOUT("Main PLL : ");
	bool_status  = Chip_Clock_MainPLLLocked();
	if (bool_status == true) {
		DEBUGOUT("Locked\r\n");
	}
	else {
		DEBUGOUT("Not Locked\r\n");
		return 1;
	}

	/* Read Main PLL frequency in Hz */
	mainpll_freq  = Chip_Clock_GetMainPLLHz();
	if (mainpll_freq == 0) {
		DEBUGOUT("Error in reading Main PLL frequency \r\n");
		return 2;
	}
	DEBUGOUT("Main PLL Frequency in Hz : %d \r\n", mainpll_freq);
	DEBUGOUT("=========================================== \r\n");

	DEBUGOUT("=========================================== \r\n");
	DEBUGOUT("Clock Divider functions \r\n");
	/*
	 * Divider E divider is used for SPIFI, source is set to
	 * Main PLL in SysInit code.
	 * Read Divider E source & verify it
	 */
	clk_in = Chip_Clock_GetDividerSource(CLK_IDIV_E);
	if (clk_in != CLKIN_MAINPLL) {
		DEBUGOUT("Divider E source wrong %d \r\n", clk_in);
		return 3;
	}
	DEBUGOUT("Divider E source set to Main PLL \r\n");

	/*
	 * Divider E divider is used for SPIFI, divider value should be
	 * between 3 and 5 set in SysInit code.
	 * Read Divider E divider value & verify it
	 */
	dive_value = Chip_Clock_GetDividerDivisor(CLK_IDIV_E);
	if ( (dive_value < 3) && (dive_value > 5)) {
		DEBUGOUT("Divider E divider wrong %d \r\n", dive_value);
		return 4;
	}

	DEBUGOUT("Divider E divider value: %d \r\n", dive_value);
	DEBUGOUT("=========================================== \r\n");

	/*
	 * Read the frequencies of the input clock sources,
	 * print it on UART prompt
	 */
	DEBUGOUT("=========================================== \r\n");
	DEBUGOUT("Input clock frequencies \r\n");
	DEBUGOUT("=========================================== \r\n");
	for ( i = 0; i < (sizeof(clkin_info) / sizeof(CLKIN_NAME_T)); i++) {
		clkin_frq = Chip_Clock_GetClockInputHz(clkin_info[i].clk_in);
		DEBUGOUT(" %s Frequency : %d Hz \r\n", clkin_info[i].clkin_name, clkin_frq);
	}
	DEBUGOUT("=========================================== \r\n");

	/*
	 * Read the base clock settings & print on UART
	 */
	DEBUGOUT("=========================================== \r\n");
	DEBUGOUT("Base Clock Setting Information \r\n");
	DEBUGOUT("=========================================== \r\n");
	for ( i = 0; i < (sizeof(baseclk_info) / sizeof(BASECLK_INFO_T)); i++) {
		/* Read Base clock info, only if base clock is enabled */
		bool_status = Chip_Clock_IsBaseClockEnabled(baseclk_info[i].clock);
		if ( bool_status == true) {
			Chip_Clock_GetBaseClockOpts(baseclk_info[i].clock, &base_input,
										&autoblocken, &powerdn);
			/* Read Frequency of the base clock */
			baseclk_frq = Chip_Clock_GetBaseClocktHz(baseclk_info[i].clock);

			/* Print details on UART */
			DEBUGOUT("%s Input Clk: %d Base Clk Frq : %d Hz Auto block: %d Power down: %d \r\n",
					 baseclk_info[i].clock_name, base_input, baseclk_frq, autoblocken, powerdn);
		}
	}
	DEBUGOUT("=========================================== \r\n");

	/*
	 * Read the peripheral clock rate & print on UART
	 */
	DEBUGOUT("=========================================== \r\n");
	DEBUGOUT("Peripheral Clock Rates \r\n");
	DEBUGOUT("=========================================== \r\n");
	for ( i = 0; i < (sizeof(ccu_clk_info) / sizeof(CCUCLK_INFO_T)); i++) {
		/* Read Frequency of the peripheral clock */
		perclk_frq = Chip_Clock_GetRate(ccu_clk_info[i].per_clk);
		/* Print the per clock only if it is enabled */
		if (perclk_frq) {
			/* Print details on UART */
			DEBUGOUT("%s Per Frq : %d Hz \r\n", ccu_clk_info[i].clock_name,
					 perclk_frq);
		}
	}
	DEBUGOUT("=========================================== \r\n");

	while (k) ;

	return 0;
}
Exemplo n.º 15
0
/* Update system core clock rate, should be called if the system has
   a clock rate change */
void SystemCoreClockUpdate(void)
{
	/* CPU core speed */
	SystemCoreClock = Chip_Clock_GetRate(CLK_MX_MXCORE);
}
/* Configure I2S for Audio Format input */
Status Chip_I2S_Config(LPC_I2S_Type *I2Sx, uint8_t TRMode, Chip_I2S_Audio_Format_Type *audio_format)
{
	uint32_t pClk;
	uint32_t x, y;
	uint64_t divider;
	uint16_t dif;
	uint16_t x_divide = 0, y_divide = 0;
	uint32_t N;
	uint16_t err, ErrorOptimal = 0xFFFF;

	pClk = (uint64_t)Chip_Clock_GetRate(CLK_APB1_I2S);

	/* divider is a fixed point number with 16 fractional bits */
	divider = (((uint64_t)(audio_format->SampleRate) * 2 * (audio_format->WordWidth) * 2) << 16) / pClk;
	/* find N that make x/y <= 1 -> divider <= 2^16 */
	for (N = 64; N > 0; N--) {
		if ((divider * N) < (1 << 16)) {
			break;
		}
	}
	if (N == 0) {
		return ERROR;
	}
	divider *= N;
	for (y = 255; y > 0; y--) {
		x = y * divider;
		if (x & (0xFF000000)) {
			continue;
		}
		dif = x & 0xFFFF;
		if (dif > 0x8000) {
			err = 0x10000 - dif;
		}
		else {
			err = dif;
		}
		if (err == 0) {
			y_divide = y;
			break;
		}
		else if (err < ErrorOptimal) {
			ErrorOptimal = err;
			y_divide = y;
		}
	}
	x_divide = ((uint64_t)y_divide * (audio_format->SampleRate) * 2 * (audio_format->WordWidth) * N * 2) / pClk;
	if (x_divide >= 256) {
		x_divide = 0xFF;
	}
	if (x_divide == 0) {
		x_divide = 1;
	}
	if (audio_format->WordWidth <= 8) {
		IP_I2S_SetWordWidth(I2Sx, TRMode, I2S_WORDWIDTH_8);
	}
	else if (audio_format->WordWidth <= 16) {
		IP_I2S_SetWordWidth(I2Sx, TRMode, I2S_WORDWIDTH_16);
	}
	else {
		IP_I2S_SetWordWidth(I2Sx, TRMode, I2S_WORDWIDTH_32);
	}
	IP_I2S_SetMono(I2Sx, TRMode, (audio_format->ChannelNumber) == 1 ? I2S_MONO : I2S_STEREO);
	IP_I2S_SetMasterSlaveMode(I2Sx, TRMode, I2S_MASTER_MODE);
	IP_I2S_SetWS_Halfperiod(I2Sx, TRMode, audio_format->WordWidth - 1);
	IP_I2S_ModeConfig(I2Sx, TRMode, I2S_TXMODE_CLKSEL(0), !I2S_TXMODE_4PIN_ENABLE, !I2S_TXMODE_MCENA);
	IP_I2S_SetBitRate(I2Sx, TRMode, N - 1);
	IP_I2S_SetXYDivider(I2Sx, TRMode, x_divide, y_divide);
	return SUCCESS;
}
Exemplo n.º 17
0
void adc_g_v_Init(void) {


	clock_g_vInit();
//	clock_g_vSetupAdchsClock(HSADC_CLOCK_RATE);
	uint32_t fg_ui32FreqHSADC =0;
	fg_ui32FreqHSADC = Chip_Clock_GetRate(CLK_MX_TIMER1);
	//clock_g_vSetupAdchsClock(HSADC_CLOCK_RATE);
	//Chip_USB0_Init(); /* Initialize the USB0 PLL to 480 MHz */
//	Chip_Clock_SetDivider(CLK_IDIV_A, CLKIN_USBPLL, 2); /* Source DIV_A from USB0PLL, and set divider to 2 (Max div value supported is 4)  [IN 480 MHz; OUT 240 MHz */
//	Chip_Clock_SetDivider(CLK_IDIV_B, CLKIN_IDIVA, 3); /* Source DIV_B from DIV_A, [IN 240 MHz; OUT 80 MHz */
//	Chip_Clock_SetBaseClock(CLK_BASE_ADCHS, CLKIN_IDIVB, true, false); /* Source ADHCS base clock from DIV_B */

	//	Chip_Clock_SetDivider(CLK_IDIV_A, CLKIN_MAINPLL, 3); /* Setup divider A for main PLL rate divided by 3 */
//	Chip_Clock_SetBaseClock(CLK_BASE_ADCHS, CLKIN_IDIVA, true, false); /* HSADC base clock = divider A input */


//	Chip_Clock_EnableOpts(CLK_ADCHS, true, true, 1); /* Enable the clock */


	/* Initialize HSADC */
	Chip_HSADC_Init(LPC_ADCHS);

	/* Setup FIFO trip points for interrupt/DMA to 16 samples, no packing */
	Chip_HSADC_SetupFIFO(LPC_ADCHS, 8, false);


	fg_ui32FreqHSADC = Chip_HSADC_GetBaseClockRate(LPC_ADCHS);

	/* Software trigger only, 0x90 recovery clocks, add channel IF to FIFO entry */
	Chip_HSADC_ConfigureTrigger(LPC_ADCHS, HSADC_CONFIG_TRIGGER_SW,
			HSADC_CONFIG_TRIGGER_RISEEXT, HSADC_CONFIG_TRIGGER_NOEXTSYNC,
			HSADC_CHANNEL_ID_EN_NONE, 0x90);

	/* Select both positive and negative DC biasing for input 3 */
	//Chip_HSADC_SetACDCBias(LPC_ADCHS, 3, HSADC_CHANNEL_DCBIAS, HSADC_CHANNEL_DCBIAS);
	Chip_HSADC_SetACDCBias(LPC_ADCHS, 0, HSADC_CHANNEL_DCBIAS,
			HSADC_CHANNEL_DCBIAS);
	Chip_HSADC_SetACDCBias(LPC_ADCHS, 1, HSADC_CHANNEL_DCBIAS,
				HSADC_CHANNEL_DCBIAS);

	/* Setup data format for 2's complement and update clock settings. This function
	 should be called whenever a clock change is made to the HSADC */
	Chip_HSADC_SetPowerSpeed(LPC_ADCHS, false);

	/* Enable HSADC power */
	Chip_HSADC_EnablePower(LPC_ADCHS);

	/* Update Descriptor Table for use with channel 0 and 1 in loop*/
	Chip_HSADC_SetupDescEntry(LPC_ADCHS, 0, 0, (HSADC_DESC_CH(0) |
													HSADC_DESC_BRANCH_FIRST| /*HSADC_DESC_MATCH(1)*/ HSADC_DESC_MATCH(ADC_DEF_CLK_DIV)  | HSADC_DESC_THRESH_NONE |
													HSADC_DESC_RESET_TIMER));
	Chip_HSADC_SetupDescEntry(LPC_ADCHS, 0, 1, (HSADC_DESC_CH(5) |
												HSADC_DESC_BRANCH_FIRST| HSADC_DESC_HALT | HSADC_DESC_MATCH(1) | HSADC_DESC_THRESH_NONE|
												HSADC_DESC_RESET_TIMER));


	/* Update descriptor tables - needed after updating any descriptors */
	Chip_HSADC_UpdateDescTable(LPC_ADCHS, 0);
	Chip_HSADC_UpdateDescTable(LPC_ADCHS, 1);


}