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Diffstat (limited to 'LUFA/Drivers/Board/Temperature.h')
| -rw-r--r-- | LUFA/Drivers/Board/Temperature.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/LUFA/Drivers/Board/Temperature.h b/LUFA/Drivers/Board/Temperature.h new file mode 100644 index 0000000..e34a141 --- /dev/null +++ b/LUFA/Drivers/Board/Temperature.h @@ -0,0 +1,125 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ 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
+ 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
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ 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
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ * \brief Master include file for the board temperature sensor driver.
+ *
+ * Master include file for the board temperature sensor driver, for the USB boards which contain a temperature sensor.
+ */
+
+/** \ingroup Group_BoardDrivers
+ * @defgroup Group_Temperature Temperature Sensor Driver - LUFA/Drivers/Board/Temperature.h
+ *
+ * \section Sec_Dependencies Module Source Dependencies
+ * The following files must be built with any user project that uses this module:
+ * - LUFA/Drivers/Board/Temperature.c <i>(Makefile source module name: LUFA_SRC_TEMPERATURE)</i>
+ *
+ * \section Module Description
+ * Temperature sensor driver. This provides an easy to use interface for the hardware temperature sensor located
+ * on many boards. It provides an interface to configure the sensor and appropriate ADC channel, plus read out the
+ * current temperature in degrees C. It is designed for and will only work with the temperature sensor located on the
+ * official Atmel USB AVR boards, as each sensor has different characteristics.
+ *
+ * @{
+ */
+
+#ifndef __TEMPERATURE_H__
+#define __TEMPERATURE_H__
+
+ /* Includes: */
+ #include <avr/pgmspace.h>
+
+ #include "../../Common/Common.h"
+ #include "../Peripheral/ADC.h"
+
+ #if (BOARD == BOARD_NONE)
+ #error The Board Temperature Sensor driver cannot be used if the makefile BOARD option is not set.
+ #elif ((BOARD != BOARD_USBKEY) && (BOARD != BOARD_STK525) && \
+ (BOARD != BOARD_STK526) && (BOARD != BOARD_USER) && \
+ (BOARD != BOARD_EVK527))
+ #error The selected board does not contain a temperature sensor.
+ #endif
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Macros: */
+ /** ADC channel number for the temperature sensor. */
+ #define TEMP_ADC_CHANNEL 0
+
+ /** ADC channel MUX mask for the temperature sensor. */
+ #define TEMP_ADC_CHANNEL_MASK ADC_CHANNEL0
+
+ /** Minimum returnable temperature from the \ref Temperature_GetTemperature() function. */
+ #define TEMP_MIN_TEMP TEMP_TABLE_OFFSET
+
+ /** Maximum returnable temperature from the \ref Temperature_GetTemperature() function. */
+ #define TEMP_MAX_TEMP ((TEMP_TABLE_SIZE - 1) + TEMP_TABLE_OFFSET)
+
+ /* Inline Functions: */
+ /** Initialises the temperature sensor driver, including setting up the appropriate ADC channel.
+ * This must be called before any other temperature sensor routines.
+ *
+ * \pre The ADC itself (not the ADC channel) must be configured separately before calling the
+ * temperature sensor functions.
+ */
+ static inline void Temperature_Init(void) ATTR_ALWAYS_INLINE;
+ static inline void Temperature_Init(void)
+ {
+ ADC_SetupChannel(TEMP_ADC_CHANNEL);
+ }
+
+ /* Function Prototypes: */
+ /** Performs a complete ADC on the temperature sensor channel, and converts the result into a
+ * valid temperature between \ref TEMP_MIN_TEMP and \ref TEMP_MAX_TEMP in degrees Celsius.
+ *
+ * \return Signed temperature value in degrees Celsius.
+ */
+ int8_t Temperature_GetTemperature(void) ATTR_WARN_UNUSED_RESULT;
+
+ /* Private Interface - For use in library only: */
+ #if !defined(__DOXYGEN__)
+ /* Macros: */
+ #define TEMP_TABLE_SIZE (sizeof(Temperature_Lookup) / sizeof(Temperature_Lookup[0]))
+ #define TEMP_TABLE_OFFSET -21
+ #endif
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
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