adc.h File Reference

Header for A/D converter. More...

Go to the source code of this file.

Defines
#define	NUM_ADC_USERS   3
	Be sure to update NUM_ADC_USERS if additional users are added to the ADCUser list.
Typedefs
typedef int8u	ADCChannelType
	A type for the channel enumeration (such as ADC_SOURCE_ADC0_GND).
Enumerations
enum	{ ADC_USER_LQI = 0, ADC_USER_APP = 1, ADC_USER_APP2 = 2 }
enum	{ ADC_REF_AREF = 0x00, ADC_REF_AVCC = 0x40, ADC_REF_INT = 0xC0 }
enum	{   ADC_CONVERSION_TIME_US_32 = 0x0, ADC_CONVERSION_TIME_US_64 = 0x1, ADC_CONVERSION_TIME_US_128 = 0x2, ADC_CONVERSION_TIME_US_256 = 0x3,   ADC_CONVERSION_TIME_US_512 = 0x4, ADC_CONVERSION_TIME_US_1024 = 0x5, ADC_CONVERSION_TIME_US_2048 = 0x6, ADC_CONVERSION_TIME_US_4096 = 0x7 }
Functions
void	halInternalInitAdc (void)
	Initializes and powers-up the ADC.
StStatus	halStartAdcConversion (ADCUser id, ADCReferenceType reference, ADCChannelType channel, ADCRateType rate)
	Starts an ADC conversion for the user specified by id.
StStatus	halRequestAdcData (ADCUser id, int16u *value)
	Returns the status of a pending conversion previously started by halStartAdcConversion().
StStatus	halReadAdcBlocking (ADCUser id, int16u *value)
	Waits for the user's request to complete and then, if a conversion was done, writes the raw register value of the conversion (the unaltered value taken directly from the ADC's data register) into value and returns ADC_CONVERSION_DONE, or immediately returns ADC_NO_CONVERSION_PENDING.
StStatus	halAdcCalibrate (ADCUser id)
	Calibrates or recalibrates the ADC system.
int16s	halConvertValueToVolts (int16u value)
	Convert the raw register value (the unaltered value taken directly from the ADC's data register) into a signed fixed point value with units 10^-4 Volts.
void	stCalibrateVref (void)
	Calibrates Vref to be 1.2V +/-10mV.

---

Detailed Description

Header for A/D converter.

Definition in file adc.h.