Templates/DS18B20_Library
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- сделана привязка датчиков по индексу или по юзер байтам
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Razvalyaev
2025-02-06 13:06:18 +03:00
parent e188fc4074
commit 586907b339
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DS18B20/ds18b20.h Normal file
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/**
******************************************************************************
* @file ds18b20.h
* @brief This file contains all the constants parameters for the DS18B20
* 1-Wire Digital Thermometer
******************************************************************************
* @attention
* Usage:
* Uncomment LL Driver for HAL driver
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef DS18B20_H
#define DS18B20_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "onewire.h"
/* I/O Port ------------------------------------------------------------------*/
#define DS_Pin GPIO_PIN_9
#define DS_GPIO_Port GPIOA
/* Data Structure ------------------------------------------------------------*/
#define DS18B20_DEVICE_AMOUNT 8
/* Register ------------------------------------------------------------------*/
#define DS18B20_CMD_CONVERT 0x44
#define DS18B20_CMD_ALARM_SEARCH 0xEC
#define DS18B20_CMD_READSCRATCHPAD 0xBE
#define DS18B20_CMD_WRITESCRATCHPAD 0x4E
#define DS18B20_CMD_COPYSCRATCHPAD 0x48
/* Data Structure ------------------------------------------------------------*/
#define DS18B20_FAMILY_CODE 0x28
#define DS18B20_SERIAL_NUMBER_LEN_BYTES 6
#define DS18B20_SERIAL_NUMBER_OFFSET_BYTES 1
#define DS18B20_SCRATCHPAD_T_LSB_BYTE_IDX 0
#define DS18B20_SCRATCHPAD_T_MSB_BYTE_IDX 1
#define DS18B20_SCRATCHPAD_T_LIMIT_H_BYTE_IDX 2
#define DS18B20_SCRATCHPAD_T_LIMIT_L_BYTE_IDX 3
#define DS18B20_SCRATCHPAD_CONFIG_BYTE_IDX 4
#define DS18B20_SCRATCHPAD_USER_BYTE_3_IDX 6
#define DS18B20_SCRATCHPAD_USER_BYTE_4_IDX 7
#define DS18B20_SCRATCHPAD_CRC_IDX 8
/* Bits locations for resolution */
#define DS18B20_RESOLUTION_R1 6
#define DS18B20_RESOLUTION_R0 5
#define DS18B20_DECIMAL_STEPS_12BIT 0.0625
#define DS18B20_DECIMAL_STEPS_11BIT 0.125
#define DS18B20_DECIMAL_STEPS_10BIT 0.25
#define DS18B20_DECIMAL_STEPS_9BIT 0.5
#define DS18B20_DELAY_MS_9_BITS 94
#define DS18B20_DELAY_MS_10_BITS 188
#define DS18B20_DELAY_MS_11_BITS 375
#define DS18B20_DELAY_MS_12_BITS 750
#define DS18B20_DELAY_MS_MAX DS18B20_DELAY_MS_12_BITS
#define DS18B20_9_BITS_DATA_MASK 0x7F8
#define DS18B20_10_BITS_DATA_MASK 0x7FC
#define DS18B20_11_BITS_DATA_MASK 0x7FE
#define DS18B20_12_BITS_DATA_MASK 0x7FF
/* DS18B20 Resolutions */
typedef enum {
DS18B20_RESOLUTION_9BITS = 0x1F,
DS18B20_RESOLUTION_10BITS = 0x3F,
DS18B20_RESOLUTION_11BITS = 0x5F,
DS18B20_RESOLUTION_12BITS = 0x7F
} DS18B20_Res_t;
typedef struct
{
uint8_t DevAddr[DS18B20_DEVICE_AMOUNT][8];
uint8_t AlmAddr[DS18B20_DEVICE_AMOUNT][8];
float Temperature[DS18B20_DEVICE_AMOUNT];
DS18B20_Res_t Resolution;
} DS18B20_Drv_t;
extern DS18B20_Drv_t DS;
extern OneWire_t OW;
/* External Function ---------------------------------------------------------*/
HAL_StatusTypeDef DS18B20_Search(DS18B20_Drv_t *DS, OneWire_t *OW);
HAL_StatusTypeDef DS18B20_StartConvT(OneWire_t* OW, uint8_t *ROM);
HAL_StatusTypeDef DS18B20_StartConvTAll(OneWire_t* OW);
HAL_StatusTypeDef DS18B20_CalcTemperature(OneWire_t* OW, uint8_t *ROM, uint8_t *Scratchpad, float *destination);
HAL_StatusTypeDef DS18B20_ReadScratchpad(OneWire_t* OW, uint8_t *ROM, uint8_t *Scratchpad);
HAL_StatusTypeDef DS18B20_WaitForEndConvertion(OneWire_t* OW);
HAL_StatusTypeDef DS18B20_SetTempAlarm(OneWire_t* OW, uint8_t *ROM, int8_t Low,
int8_t High);
HAL_StatusTypeDef DS18B20_WriteUserBytes(OneWire_t* OW, uint8_t *ROM, int16_t UserBytes12,
int16_t UserBytes34, uint8_t UserBytesMask);
uint8_t DS18B20_AlarmSearch(DS18B20_Drv_t *DS, OneWire_t* OW);
#ifdef __cplusplus
}
#endif
#endif /* DS18B20_H */