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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-01-25 00:52:45 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-01-25 00:52:45 +0000 |
| commit | b68f7f16499a96e85c7cef4afd9da1a5c69e6a08 (patch) | |
| tree | d26d7195168de8550665e36dd6a443f2f22ab704 /LUFA/Drivers/Peripheral | |
| parent | 871d9bf1af06fe208ca16cb3b19722bec1300e63 (diff) | |
| download | lufa-b68f7f16499a96e85c7cef4afd9da1a5c69e6a08.tar.gz lufa-b68f7f16499a96e85c7cef4afd9da1a5c69e6a08.tar.bz2 lufa-b68f7f16499a96e85c7cef4afd9da1a5c69e6a08.zip | |
Added explicit ADC channel masks for the standard set of ADC channels, as the single-ended channel MUX masks are not equal to the channel number on some AVR models. Changed demos to use the new channel masks when using the ADC driver.
Diffstat (limited to 'LUFA/Drivers/Peripheral')
| -rw-r--r-- | LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h | 83 |
1 files changed, 81 insertions, 2 deletions
diff --git a/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h b/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h index 472e1df47..b0a9b9e80 100644 --- a/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h +++ b/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h @@ -108,7 +108,81 @@ /** 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
+
+ /** MUX mask define for the ADC1 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL1 0x01
+
+ /** MUX mask define for the ADC2 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL2 0x02
+
+ /** MUX mask define for the ADC3 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL3 0x03
+
+ /** MUX mask define for the ADC4 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL4 0x04
+ /** MUX mask define for the ADC5 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL5 0x05
+
+ /** MUX mask define for the ADC6 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL6 0x06
+
+ /** MUX mask define for the ADC7 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_CHANNEL7 0x07
+
+ /** MUX mask define for the internal 1.1V bandgap channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading. */
+ #define ADC_1100MV_BANDGAP 0x1E
+
+ #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 Note available on all AVR models.
+ */
+ #define ADC_CHANNEL8 0x20
+
+ /** MUX mask define for the ADC9 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_CHANNEL9 0x21
+
+ /** MUX mask define for the ADC10 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_CHANNEL10 0x22
+
+ /** MUX mask define for the ADC11 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_CHANNEL11 0x23
+
+ /** MUX mask define for the ADC12 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_CHANNEL12 0x24
+
+ /** MUX mask define for the ADC13 channel of the ADC. See \ref ADC_StartReading and \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_CHANNEL13 0x25
+
+ /** MUX mask define for the internal temperature sensor channel of the ADC. See \ref ADC_StartReading and
+ * \ref ADC_GetChannelReading.
+ *
+ * \note Note available on all AVR models.
+ */
+ #define ADC_INT_TEMP_SENS 0x27
+ #endif
+ //@}
+
/* Pseudo-Function Macros: */
#if defined(__DOXYGEN__)
/** Initializes the ADC, ready for conversions. This must be called before any other ADC operations.
@@ -159,6 +233,11 @@ * associated port pin as an input and disables the digital portion of the I/O to reduce
* power consumption.
*
+ * \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 The channel number must be specified as an integer, and NOT a ADC_CHANNELx mask.
+ *
* \param[in] Channel ADC channel number to set up for conversions
*/
static inline void ADC_SetupChannel(const uint8_t Channel)
@@ -196,7 +275,7 @@ * Once executed, the conversion status can be determined via the \ref ADC_IsReadingComplete() macro and
* the result read via the \ref ADC_GetResult() macro.
*
- * \param[in] MUXMask Mask comprising of an ADC channel number, reference mask and adjustment mask
+ * \param[in] MUXMask Mask comprising of an ADC channel mask, reference mask and adjustment mask
*/
static inline void ADC_StartReading(const uint8_t MUXMask)
{
@@ -208,7 +287,7 @@ /** Performs a complete single reading from channel, including a polling spin-loop to wait for the
* conversion to complete, and the returning of the converted value.
*
- * \param[in] MUXMask Mask comprising of an ADC channel number, reference mask and adjustment mask
+ * \param[in] MUXMask Mask comprising of an ADC channel mask, reference mask and adjustment mask
*/
static inline uint16_t ADC_GetChannelReading(const uint8_t MUXMask) ATTR_WARN_UNUSED_RESULT;
static inline uint16_t ADC_GetChannelReading(const uint8_t MUXMask)
|