108 lines
4.4 KiB
C
108 lines
4.4 KiB
C
/* Teensyduino Core Library
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* http://www.pjrc.com/teensy/
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* Copyright (c) 2013 PJRC.COM, LLC.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* 1. The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* 2. If the Software is incorporated into a build system that allows
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* selection among a list of target devices, then similar target
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* devices manufactured by PJRC.COM must be included in the list of
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* target devices and selectable in the same manner.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _avr_functions_h_
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#define _avr_functions_h_
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#include <inttypes.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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void eeprom_initialize(void);
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uint8_t eeprom_read_byte(const uint8_t *addr) __attribute__ ((pure));
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uint16_t eeprom_read_word(const uint16_t *addr) __attribute__ ((pure));
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uint32_t eeprom_read_dword(const uint32_t *addr) __attribute__ ((pure));
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void eeprom_read_block(void *buf, const void *addr, uint32_t len);
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void eeprom_write_byte(uint8_t *addr, uint8_t value);
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void eeprom_write_word(uint16_t *addr, uint16_t value);
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void eeprom_write_dword(uint32_t *addr, uint32_t value);
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void eeprom_write_block(const void *buf, void *addr, uint32_t len);
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int eeprom_is_ready(void);
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#define eeprom_busy_wait() do {} while (!eeprom_is_ready())
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static inline float eeprom_read_float(const float *addr) __attribute__((pure, always_inline, unused));
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static inline float eeprom_read_float(const float *addr)
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{
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union {float f; uint32_t u32;} u;
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u.u32 = eeprom_read_dword((const uint32_t *)addr);
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return u.f;
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}
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static inline void eeprom_write_float(float *addr, float value) __attribute__((always_inline, unused));
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static inline void eeprom_write_float(float *addr, float value)
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{
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union {float f; uint32_t u32;} u;
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u.f = value;
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eeprom_write_dword((uint32_t *)addr, u.u32);
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}
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static inline void eeprom_update_byte(uint8_t *addr, uint8_t value) __attribute__((always_inline, unused));
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static inline void eeprom_update_byte(uint8_t *addr, uint8_t value)
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{
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eeprom_write_byte(addr, value);
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}
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static inline void eeprom_update_word(uint16_t *addr, uint16_t value) __attribute__((always_inline, unused));
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static inline void eeprom_update_word(uint16_t *addr, uint16_t value)
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{
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eeprom_write_word(addr, value);
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}
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static inline void eeprom_update_dword(uint32_t *addr, uint32_t value) __attribute__((always_inline, unused));
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static inline void eeprom_update_dword(uint32_t *addr, uint32_t value)
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{
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eeprom_write_dword(addr, value);
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}
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static inline void eeprom_update_float(float *addr, float value) __attribute__((always_inline, unused));
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static inline void eeprom_update_float(float *addr, float value)
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{
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union {float f; uint32_t u32;} u;
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u.f = value;
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eeprom_write_dword((uint32_t *)addr, u.u32);
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}
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static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len) __attribute__((always_inline, unused));
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static inline void eeprom_update_block(const void *buf, void *addr, uint32_t len)
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{
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eeprom_write_block(buf, addr, len);
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}
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char * ultoa(unsigned long val, char *buf, int radix);
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char * ltoa(long val, char *buf, int radix);
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static inline char * utoa(unsigned int val, char *buf, int radix) __attribute__((always_inline, unused));
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static inline char * utoa(unsigned int val, char *buf, int radix) { return ultoa(val, buf, radix); }
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static inline char * itoa(int val, char *buf, int radix) __attribute__((always_inline, unused));
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static inline char * itoa(int val, char *buf, int radix) { return ltoa(val, buf, radix); }
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char * dtostrf(float val, int width, unsigned int precision, char *buf);
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#ifdef __cplusplus
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}
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#endif
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#endif
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