forked from IanF/OneWireArduinoSlaveATTINY85
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64 lines
1.6 KiB
64 lines
1.6 KiB
#ifndef iButton_h |
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#define iButton_h |
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#if defined(ARDUINO) && ARDUINO >= 100 |
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#include "Arduino.h" |
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#else |
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#include "WProgram.h" |
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#endif |
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#include <inttypes.h> |
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// You can exclude CRC checks altogether by defining this to 0 |
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#ifndef OWSlave_CRC |
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#define OWSlave_CRC 1 |
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#endif |
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// Select the table-lookup method of computing the 8-bit CRC |
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// by setting this to 1. The lookup table no longer consumes |
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// limited RAM, but enlarges total code size by about 250 bytes |
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#ifndef OWSlave_CRC8_TABLE |
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#define OWSlave_CRC8_TABLE 0 |
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#endif |
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#define FALSE 0 |
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#define TRUE 1 |
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#define ONEWIRE_NO_ERROR 0 |
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#define ONEWIRE_READ_TIMESLOT_TIMEOUT 1 |
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#define ONEWIRE_WRITE_TIMESLOT_TIMEOUT 2 |
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#define ONEWIRE_WAIT_RESET_TIMEOUT 3 |
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#define ONEWIRE_VERY_LONG_RESET 4 |
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#define ONEWIRE_VERY_SHORT_RESET 5 |
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#define ONEWIRE_PRESENCE_LOW_ON_LINE 6 |
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class OWSlave { |
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private: |
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bool waitTimeSlot(); |
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uint8_t pin_bitmask; |
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volatile uint8_t *baseReg; |
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char rom[8]; |
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public: |
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bool recvAndProcessCmd(); |
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OWSlave(uint8_t pin); |
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void setRom(unsigned char rom[8]); |
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void setRomnc(unsigned char rom[8]); |
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bool waitForRequest(bool ignore_errors); |
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bool waitReset(uint16_t timeout_ms); |
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bool waitReset(); |
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bool presence(uint8_t delta); |
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bool presence(); |
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bool search(); |
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uint8_t sendData(char buf[], uint8_t data_len); |
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uint8_t recvData(char buf[], uint8_t data_len); |
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void send(uint8_t v); |
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uint8_t recv(void); |
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void sendBit(uint8_t v); |
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uint8_t recvBit(void); |
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#if OWSlave_CRC |
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static uint8_t crc8(char addr[], uint8_t len); |
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#endif |
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uint8_t errno; |
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}; |
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#endif
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