Razvalyaev
59606978b2
- onewire: модуль для отправик комманд в DS18B20 - ds18b20_driver: модуль для отправик комманд в DS18B20 - dallas_tools: модуль для общения с DS18B20
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
/**
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******************************************************************************
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* @file onewire.h
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* @brief This file contains all the constants parameters for the OneWire
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef ONEWIRE_H
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#define ONEWIRE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "ow_port.h"
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/* Driver Selection ----------------------------------------------------------*/
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//#define LL_Driver
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#define CMSIS_Driver
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/* OneWire Timings -----------------------------------------------------------*/
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#define ONEWIRE_RESET_PULSE_US 480 // Äëèòåëüíîñòü èìïóëüñà ñáðîñà
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#define ONEWIRE_PRESENCE_WAIT_US 70 // Îæèäàíèå îòâåòà îò äàò÷èêà
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#define ONEWIRE_PRESENCE_DURATION_US 410 // Äëèòåëüíîñòü ñèãíàëà ïðèñóòñòâèÿ
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#define ONEWIRE_WRITE_1_US 6 // Äëèòåëüíîñòü çàïèñè "1"
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#define ONEWIRE_WRITE_0_US 60 // Äëèòåëüíîñòü çàïèñè "0"
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#define ONEWIRE_READ_CMD_US 5 // Âðåìÿ êîììàíäû ÷òåíèÿ áèòà
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#define ONEWIRE_READ_DELAY_US 10 // Çàäåðæêà ïåðåä ñ÷èòûâàíèåì áèòà
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#define ONEWIRE_RECOVERY_TIME_US 1 // Âîññòàíîâëåíèå ïåðåä ñëåäóþùèì ñëîòîì
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#define ONEWIRE_COMMAND_SLOT_US 70 // Îáùåå âðåìÿ êîììàíäû OneWire
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/* Common Register -----------------------------------------------------------*/
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#define ONEWIRE_CMD_SEARCHROM 0xF0
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#define ONEWIRE_CMD_READROM 0x33
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#define ONEWIRE_CMD_MATCHROM 0x55
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#define ONEWIRE_CMD_SKIPROM 0xCC
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/* Data Structure ------------------------------------------------------------*/
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typedef enum
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{
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Input,
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Output
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} PinMode;
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typedef struct
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{
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uint8_t LastDiscrepancy;
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uint8_t LastFamilyDiscrepancy;
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uint8_t LastDeviceFlag;
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uint8_t RomByte[8];
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uint8_t RomCnt;
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uint16_t DataPin;
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GPIO_TypeDef *DataPort;
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} OneWire_t;
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/* External Function ---------------------------------------------------------*/
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void OneWire_Init(OneWire_t* OW);
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uint8_t OneWire_Search(OneWire_t* OW, uint8_t Cmd);
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void OneWire_GetDevRom(OneWire_t* OW, uint8_t *dev);
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uint8_t OneWire_Reset(OneWire_t* OW);
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uint8_t OneWire_ReadBit(OneWire_t* OW);
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uint8_t OneWire_ReadByte(OneWire_t* OW);
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void OneWire_WriteByte(OneWire_t* OW, uint8_t byte);
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void OneWire_MatchROM(OneWire_t* OW, uint8_t *Rom);
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void OneWire_Skip(OneWire_t* OW);
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uint8_t OneWire_CRC8(uint8_t *addr, uint8_t len);
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void OneWire_Pin_Mode(OneWire_t* OW, PinMode Mode);
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void OneWire_Pin_Level(OneWire_t* OW, uint8_t Level);
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uint8_t OneWire_Pin_Read(OneWire_t* OW);
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void OneWire_WriteBit(OneWire_t* OW, uint8_t bit);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ONEWIRE_H */
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