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gex-core/units/1wire/_ow_low_level.h

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//
// Created by MightyPork on 2018/02/01.
//
#ifndef GEX_F072_OW_LOW_LEVEL_H
#define GEX_F072_OW_LOW_LEVEL_H
#ifndef OW_INTERNAL
#error bad include!
#endif
#include "platform.h"
#include "unit_base.h"
#include "_ow_low_level.h"
7 years ago
/**
* Compute a 1-wire type checksum.
* If the buffer includes the checksum, the result should be 0.
*
* (this function may be used externally, or you can delete the implementation
* from the c file if another implementation is already available)
*
* @param[in] buf - buffer of bytes to verify
* @param[in] len - buffer length
* @return checksum
*/
uint8_t ow_checksum(const uint8_t *buf, uint32_t len);
/**
* Reset the 1-wire bus
*/
bool ow_reset(Unit *unit);
/**
* Write a bit to the 1-wire bus
*/
void ow_write_bit(Unit *unit, bool bit);
/**
* Read a bit from the 1-wire bus
*/
bool ow_read_bit(Unit *unit);
/**
* Write a byte to the 1-wire bus
*/
void ow_write_u8(Unit *unit, uint8_t byte);
/**
* Write a halfword to the 1-wire bus
*/
void ow_write_u16(Unit *unit, uint16_t halfword);
/**
* Write a word to the 1-wire bus
*/
void ow_write_u32(Unit *unit, uint32_t word);
/**
* Write a doubleword to the 1-wire bus
*/
void ow_write_u64(Unit *unit, uint64_t dword);
/**
* Read a byte form the 1-wire bus
*/
uint8_t ow_read_u8(Unit *unit);
/**
* Read a halfword form the 1-wire bus
*/
uint16_t ow_read_u16(Unit *unit);
/**
* Read a word form the 1-wire bus
*/
uint32_t ow_read_u32(Unit *unit);
/**
* Read a doubleword form the 1-wire bus
*/
uint64_t ow_read_u64(Unit *unit);
#endif //GEX_F072_OW_LOW_LEVEL_H