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software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
* On-chip Analogue-to-Digital converter (ADC) driver for supported U4, U6 and U7 model AVRs that contain an ADC
* peripheral internally.
*
* \note This file should not be included directly. It is automatically included as needed by the ADC driver
* dispatch header located in LUFA/Drivers/Peripheral/ADC.h.
*
* On-chip Analogue-to-Digital converter (ADC) driver for supported U4, U6 and U7 model AVRs that contain an ADC
* peripheral internally.
*
* \note This file should not be included directly. It is automatically included as needed by the ADC driver
* dispatch header located in LUFA/Drivers/Peripheral/ADC.h.
*
#if !(defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
#if !(defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
/* Public Interface - May be used in end-application: */
/* Macros: */
/** \name ADC Reference Configuration Masks */
/* Public Interface - May be used in end-application: */
/* Macros: */
/** \name ADC Reference Configuration Masks */
/** Reference mask, for using the voltage present at the AVR's AREF pin for the ADC reference. */
#define ADC_REFERENCE_AREF 0
/** Reference mask, for using the voltage present at the AVR's AREF pin for the ADC reference. */
#define ADC_REFERENCE_AREF 0
/** Reference mask, for using the internally generated 2.56V reference voltage as the ADC reference. */
#define ADC_REFERENCE_INT2560MV ((1 << REFS1) | (1 << REFS0))
/** Reference mask, for using the internally generated 2.56V reference voltage as the ADC reference. */
#define ADC_REFERENCE_INT2560MV ((1 << REFS1) | (1 << REFS0))
/** Left-adjusts the 10-bit ADC result, so that the upper 8 bits of the value returned by the
* \ref ADC_GetResult() macro contain the 8 most significant bits of the result.
*/
/** Left-adjusts the 10-bit ADC result, so that the upper 8 bits of the value returned by the
* \ref ADC_GetResult() macro contain the 8 most significant bits of the result.
*/
* \ref ADC_GetResult() macro contain the 8 least significant bits of the result.
*/
#define ADC_RIGHT_ADJUSTED (0 << ADLAR)
* \ref ADC_GetResult() macro contain the 8 least significant bits of the result.
*/
#define ADC_RIGHT_ADJUSTED (0 << ADLAR)
/** Sets the ADC mode to free running, so that conversions take place continuously as fast as the ADC
* is capable of at the given input clock speed.
*/
/** Sets the ADC mode to free running, so that conversions take place continuously as fast as the ADC
* is capable of at the given input clock speed.
*/
/** Sets the ADC input clock to prescale by a factor of 2 the AVR's system clock. */
#define ADC_PRESCALE_2 (1 << ADPS0)
/** Sets the ADC input clock to prescale by a factor of 2 the AVR's system clock. */
#define ADC_PRESCALE_2 (1 << ADPS0)
/** Sets the ADC input clock to prescale by a factor of 128 the AVR's system clock. */
#define ADC_PRESCALE_128 ((1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0))
/** Sets the ADC input clock to prescale by a factor of 128 the AVR's system clock. */
#define ADC_PRESCALE_128 ((1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0))
/** MUX mask define for the ADC0 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
#define ADC_CHANNEL0 (0x00 << MUX0)
/** MUX mask define for the ADC1 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
#define ADC_CHANNEL1 (0x01 << MUX0)
/** MUX mask define for the ADC0 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
#define ADC_CHANNEL0 (0x00 << MUX0)
/** MUX mask define for the ADC1 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading(). */
#define ADC_CHANNEL1 (0x01 << MUX0)
/** MUX mask define for the ADC2 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
*
* \note Not available on all AVR models.
/** MUX mask define for the ADC2 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
*
* \note Not available on all AVR models.
/** MUX mask define for the ADC7 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
#define ADC_CHANNEL7 (0x07 << MUX0)
/** MUX mask define for the ADC7 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
#define ADC_CHANNEL7 (0x07 << MUX0)
#if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__DOXYGEN__))
/** MUX mask define for the ADC8 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
*
#if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__DOXYGEN__))
/** MUX mask define for the ADC8 channel of the ADC. See \ref ADC_StartReading() and \ref ADC_GetChannelReading().
*
- * \note This macro will only work correctly on channel numbers that are compile-time
- * constants defined by the preprocessor.
+ * \attention This macro will only work correctly on channel numbers that are compile-time
+ * constants defined by the preprocessor.
*
* \note This must only be called for ADC channels with are connected to a physical port
* pin of the AVR, denoted by its special alternative function ADCx.
*
* \note This must only be called for ADC channels with are connected to a physical port
* pin of the AVR, denoted by its special alternative function ADCx.
*
* \param[in] ChannelIndex ADC channel number to set up for conversions.
*/
static inline void ADC_SetupChannel(const uint8_t ChannelIndex)
{
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
*
* \param[in] ChannelIndex ADC channel number to set up for conversions.
*/
static inline void ADC_SetupChannel(const uint8_t ChannelIndex)
{
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
DDRF &= ~(1 << ChannelIndex);
DIDR0 |= (1 << ChannelIndex);
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
DDRF &= ~(1 << ChannelIndex);
DIDR0 |= (1 << ChannelIndex);
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
*
* \note This must only be called for ADC channels with are connected to a physical port
* pin of the AVR, denoted by its special alternative function ADCx.
*
* \note This must only be called for ADC channels with are connected to a physical port
* pin of the AVR, denoted by its special alternative function ADCx.
*
* \param[in] ChannelIndex ADC channel number to set up for conversions.
*/
static inline void ADC_DisableChannel(const uint8_t ChannelIndex)
{
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
*
* \param[in] ChannelIndex ADC channel number to set up for conversions.
*/
static inline void ADC_DisableChannel(const uint8_t ChannelIndex)
{
#if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \
DDRF &= ~(1 << ChannelIndex);
DIDR0 &= ~(1 << ChannelIndex);
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
DDRF &= ~(1 << ChannelIndex);
DIDR0 &= ~(1 << ChannelIndex);
#elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
* complete and ready to be read out with \ref ADC_GetResult().
*/
static inline bool ADC_IsReadingComplete(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
* complete and ready to be read out with \ref ADC_GetResult().
*/
static inline bool ADC_IsReadingComplete(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
* the results read directly from the \ref ADC_GetResult() instead to reduce overhead.
*
* \param[in] MUXMask Mask comprising of an ADC channel mask, reference mask and adjustment mask.
* the results read directly from the \ref ADC_GetResult() instead to reduce overhead.
*
* \param[in] MUXMask Mask comprising of an ADC channel mask, reference mask and adjustment mask.
*/
static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask) ATTR_WARN_UNUSED_RESULT;
static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask)
*/
static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask) ATTR_WARN_UNUSED_RESULT;
static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask)
- static inline void ADC_Init(uint8_t Mode) ATTR_ALWAYS_INLINE;
- static inline void ADC_Init(uint8_t Mode)
+ static inline void ADC_Init(const uint8_t Mode) ATTR_ALWAYS_INLINE;
+ static inline void ADC_Init(const uint8_t Mode)