init proj

john103C6T6/Core/Inc/onewire.h

@@ -0,0 +1,77 @@
+/**
+******************************************************************************
+* @file    onewire.h
+* @brief   This file contains all the constants parameters for the OneWire
+******************************************************************************
+*/
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef ONEWIRE_H
+#define ONEWIRE_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "ow_port.h"
+
+/* Driver Selection ----------------------------------------------------------*/
+//#define LL_Driver
+//#define CMSIS_Driver
+/* OneWire Timings -----------------------------------------------------------*/
+#define ONEWIRE_RESET_PULSE_US      480   // Длительность импульса сброса
+#define ONEWIRE_PRESENCE_WAIT_US    70    // Ожидание ответа от датчика
+#define ONEWIRE_PRESENCE_DURATION_US 410  // Длительность сигнала присутствия
+
+#define ONEWIRE_WRITE_1_US          8     // Длительность записи "1"
+#define ONEWIRE_WRITE_0_US          57    // Длительность записи "0"
+#define ONEWIRE_READ_CMD_US         2     // Время комманды чтения бита
+#define ONEWIRE_READ_DELAY_US       6    // Задержка перед считыванием бита
+#define ONEWIRE_COMMAND_SLOT_US     58    // Общее время комманды OneWire
+#define ONEWIRE_RECOVERY_TIME_US    1     // Восстановление перед следующим слотом
+/* Common Register -----------------------------------------------------------*/
+#define ONEWIRE_CMD_SEARCHROM			0xF0
+#define ONEWIRE_CMD_READROM				0x33
+#define ONEWIRE_CMD_MATCHROM			0x55
+#define ONEWIRE_CMD_SKIPROM				0xCC
+
+/* Data Structure ------------------------------------------------------------*/
+typedef enum
+{
+	Input,
+	Output
+} PinMode;
+
+typedef struct
+{
+	uint8_t 		LastDiscrepancy;
+	uint8_t 		LastFamilyDiscrepancy;
+	uint8_t 		LastDeviceFlag;
+	uint8_t			RomByte[8];
+	uint8_t 		RomCnt;
+	uint16_t		DataPin;
+	GPIO_TypeDef	*DataPort;
+} OneWire_t;
+
+/* External Function ---------------------------------------------------------*/
+void OneWire_Init(OneWire_t* OW);
+uint8_t OneWire_Search(OneWire_t* OW, uint8_t Cmd);
+void OneWire_GetDevRom(OneWire_t* OW, uint8_t *dev);
+uint8_t OneWire_Reset(OneWire_t* OW);
+uint8_t OneWire_ReadBit(OneWire_t* OW);
+uint8_t OneWire_ReadByte(OneWire_t* OW);
+void OneWire_WriteByte(OneWire_t* OW, uint8_t byte);
+void OneWire_MatchROM(OneWire_t* OW, uint8_t *Rom);
+void OneWire_Skip(OneWire_t* OW);
+uint8_t OneWire_CRC8(uint8_t *addr, uint8_t len);
+
+void OneWire_Pin_Mode(OneWire_t* OW, PinMode Mode);
+void OneWire_Pin_Level(OneWire_t* OW, uint8_t Level);
+uint8_t OneWire_Pin_Read(OneWire_t* OW);
+void OneWire_WriteBit(OneWire_t* OW, uint8_t bit);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ONEWIRE_H */