diff options
Diffstat (limited to 'LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h')
-rw-r--r-- | LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h | 55 |
1 files changed, 28 insertions, 27 deletions
diff --git a/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h b/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h index e927de182..0aaaa9306 100644 --- a/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h +++ b/LUFA/Drivers/Peripheral/AVRU4U6U7/ADC.h @@ -1,7 +1,7 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ @@ -9,13 +9,13 @@ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in + without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this @@ -49,16 +49,16 @@ * * @{ */ - + #ifndef __ADC_AVRU4U6U7_H__ #define __ADC_AVRU4U6U7_H__ /* Includes: */ #include "../../../Common/Common.h" - + #include <avr/io.h> #include <stdbool.h> - + /* Enable C linkage for C++ Compilers: */ #if defined(__cplusplus) extern "C" { @@ -70,7 +70,7 @@ #endif /* Public Interface - May be used in end-application: */ - /* Macros: */ + /* Macros: */ /** Reference mask, for using the voltage present at the AVR's AREF pin for the ADC reference. */ #define ADC_REFERENCE_AREF 0 @@ -79,7 +79,7 @@ /** 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 * ADC_GetResult() macro contain the 8 most significant bits of the result. */ #define ADC_LEFT_ADJUSTED (1 << ADLAR) @@ -87,7 +87,7 @@ /** Right-adjusts the 10-bit ADC result, so that the lower 8 bits of the value returned by the * 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. */ #define ADC_FREE_RUNNING (1 << ADATE) @@ -95,7 +95,7 @@ /** Sets the ADC mode to single conversion, so that only a single conversion will take place before * the ADC returns to idle. */ #define ADC_SINGLE_CONVERSION (0 << ADATE) - + /** Sets the ADC input clock to prescale by a factor of 2 the AVR's system clock. */ #define ADC_PRESCALE_2 (1 << ADPS0) @@ -116,7 +116,7 @@ /** 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) @@ -152,7 +152,7 @@ /** 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 << 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. * @@ -198,7 +198,7 @@ #define ADC_INT_TEMP_SENS ((1 << 8) | (0x07 << MUX0)) #endif //@} - + /* Inline Functions: */ /** Configures the given ADC channel, ready for ADC conversions. This function sets the * associated port pin as an input and disables the digital portion of the I/O to reduce @@ -216,7 +216,7 @@ { #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \ defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \ - defined(__AVR_ATmega32U6__)) + defined(__AVR_ATmega32U6__)) DDRF &= ~(1 << ChannelIndex); DIDR0 |= (1 << ChannelIndex); #elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) @@ -242,7 +242,7 @@ } #endif } - + /** De-configures the given ADC channel, re-enabling digital I/O mode instead of analog. This * function sets the associated port pin as an input and re-enabled the digital portion of * the I/O. @@ -259,7 +259,7 @@ { #if (defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || \ defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \ - defined(__AVR_ATmega32U6__)) + defined(__AVR_ATmega32U6__)) DDRF &= ~(1 << ChannelIndex); DIDR0 &= ~(1 << ChannelIndex); #elif (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)) @@ -299,14 +299,14 @@ static inline void ADC_StartReading(const uint16_t MUXMask) { ADMUX = MUXMask; - + #if (defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__DOXYGEN__)) if (MUXMask & (1 << 8)) ADCSRB |= (1 << MUX5); else ADCSRB &= ~(1 << MUX5); #endif - + ADCSRA |= (1 << ADSC); } @@ -320,7 +320,7 @@ { return ((ADCSRA & (1 << ADIF)) ? true : false); } - + /** Retrieves the conversion value of the last completed ADC conversion and clears the reading * completion flag. * @@ -346,9 +346,9 @@ static inline uint16_t ADC_GetChannelReading(const uint16_t MUXMask) { ADC_StartReading(MUXMask); - + while (!(ADC_IsReadingComplete())); - + return ADC_GetResult(); } @@ -372,7 +372,7 @@ { ADCSRA = 0; } - + /** Indicates if the ADC is currently enabled. * * \return Boolean true if the ADC subsystem is currently enabled, false otherwise. @@ -382,12 +382,13 @@ { return ((ADCSRA & (1 << ADEN)) ? true : false); } - + /* Disable C linkage for C++ Compilers: */ #if defined(__cplusplus) } #endif - + #endif /** @} */ + |