495 lines
14 KiB
C
495 lines
14 KiB
C
/**
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******************************************************************************
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* @file dallas_tools.c
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* @brief Äðàéâåð äëÿ ðàáîòû ñ äàò÷èêàìè òåìïåðàòóðû DS18B20
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* @author MicroTechnics (microtechnics.ru)
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******************************************************************************
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@details
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Ýòîò ôàéë ñîäåðæèò ðåàëèçàöèþ ôóíêöèé äëÿ ðàáîòû ñ äàò÷èêîì DALLAS_HandleTypeDef
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÷åðåç èíòåðôåéñ 1-Wire. Îí ïðåäîñòàâëÿåò ôóíêöèè äëÿ ÷òåíèÿ è çàïèñè
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êîíôèãóðàöèè, âûïîëíåíèÿ èçìåðåíèé è îáðàáîòêè ïîëó÷åííûõ äàííûõ.
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*****************************************************************************/
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/* Includes ----------------------------------------------------------------*/
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#include "dallas_tools.h"
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/* Declarations and definitions --------------------------------------------*/
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struct
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{
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DALLAS_HandleTypeDef outdoor;
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DALLAS_HandleTypeDef indoor;
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DALLAS_HandleTypeDef bathroom;
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DALLAS_HandleTypeDef kitchen;
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DALLAS_HandleTypeDef big_room;
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DALLAS_HandleTypeDef small_room;
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DALLAS_HandleTypeDef living_room;
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DALLAS_HandleTypeDef basement;
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}AllSens;
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/* Functions ---------------------------------------------------------------*/
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void Dallas_ReadAll(void)
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{
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HAL_StatusTypeDef result;
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result = Dallas_StartConvertTAll(&OW, DALLAS_WAIT_BUS, 0);
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result = Dallas_ReadTemperature(&AllSens.outdoor);
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result = Dallas_ReadTemperature(&AllSens.indoor);
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result = Dallas_ReadTemperature(&AllSens.bathroom);
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result = Dallas_ReadTemperature(&AllSens.kitchen);
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result = Dallas_ReadTemperature(&AllSens.big_room);
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result = Dallas_ReadTemperature(&AllSens.small_room);
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result = Dallas_ReadTemperature(&AllSens.living_room);
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result = Dallas_ReadTemperature(&AllSens.basement);
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}
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void Dallas_FirstInit(void)
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{
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OW.DataPin = DS_Pin;
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OW.DataPort = DS_GPIO_Port;
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DS.Resolution = DS18B20_RESOLUTION_9BITS;
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OneWire_Init(&OW);
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DS18B20_Search(&DS, &OW);
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Dallas_SensorInitByROM(&OW, &AllSens.outdoor, 0x28C60C61060000DC);
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Dallas_SensorInitByROM(&OW, &AllSens.indoor, 0x283E4861060000F9);
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Dallas_SensorInitByROM(&OW, &AllSens.bathroom, 0x28876D60060000CD);
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uint8_t mask = DALLAS_USER_BYTE_ALL;
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// Dallas_SensorInitByUserBytes(&OW, &AllSens.outdoor, 1, NULL);
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// Dallas_SensorInitByUserBytes(&OW, &AllSens.indoor, 2, NULL);
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// Dallas_SensorInitByUserBytes(&OW, &AllSens.bathroom, 3, NULL);
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// Dallas_SensorInitByInd(&OW, &AllSens.outdoor, 0);
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// Dallas_SensorInitByInd(&OW, &AllSens.indoor, 1);
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// Dallas_SensorInitByInd(&OW, &AllSens.bathroom, 2);
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// Dallas_SensorInitByInd(&OW, &AllSens.kitchen, 3);
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// Dallas_SensorInitByInd(&OW, &AllSens.big_room, 4);
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// Dallas_SensorInitByInd(&OW, &AllSens.small_room, 5);
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// Dallas_SensorInitByInd(&OW, &AllSens.living_room, 6);
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// Dallas_SensorInitByInd(&OW, &AllSens.basement, 7);
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//
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//
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// Dallas_WriteUserBytes(&AllSens.outdoor, 1, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.indoor, 2, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.bathroom, 3, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.kitchen, 4, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.big_room, 5, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.small_room, 6, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.living_room, 7, NULL, mask);
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// Dallas_WriteUserBytes(&AllSens.basement, 8, NULL, mask);
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}
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/**
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* @brief Èíèöèàëèçèðóåò ñòðóêòóðó äàò÷èêà ïî èíäåêó
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* @param onewire Óêàçàòåëü íà ñòðóêòóðó OneWire
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @param ROM Óêàçàòåëü íà ROM äëÿ îïðåäåëåíèÿ íóæíîãî äàò÷èêà
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* @retval HAL Status
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*/
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HAL_StatusTypeDef Dallas_SensorInitByROM(OneWire_t *onewire, DALLAS_HandleTypeDef *sensor, uint64_t intROM)
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{
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HAL_StatusTypeDef result;
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sensor->isInitialized = 0;
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if(onewire == NULL)
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return HAL_ERROR;
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if(sensor == NULL)
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return HAL_ERROR;
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sensor->onewire = onewire;
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uint8_t ROM[8] = {0};
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ROM[0] = (intROM >> (7*8)) & 0xFF;
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ROM[1] = (intROM >> (6*8)) & 0xFF;
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ROM[2] = (intROM >> (5*8)) & 0xFF;
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ROM[3] = (intROM >> (4*8)) & 0xFF;
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ROM[4] = (intROM >> (3*8)) & 0xFF;
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ROM[5] = (intROM >> (2*8)) & 0xFF;
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ROM[6] = (intROM >> (1*8)) & 0xFF;
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ROM[7] = (intROM) & 0xFF;
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uint8_t comparebytes = DALLAS_ROM_SIZE;
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for(int i = 0; i < DS18B20_DEVICE_AMOUNT; i++)
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{
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comparebytes = DALLAS_ROM_SIZE;
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for(int rom_byte = 0; rom_byte < DALLAS_ROM_SIZE; rom_byte++)
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{
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if(DS.DevAddr[i][rom_byte] == ROM[rom_byte])
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comparebytes--;
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}
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if(comparebytes == 0)
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{
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sensor->sensROM = &DS.DevAddr[i];
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break;
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}
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}
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/* Ïðîâåðêà ïðèñóòñòâóåò ëè âûáðàííûé äàò÷èê íà ëèíèè */
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if(comparebytes == 0)
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{
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result = Dallas_IsConnected(sensor);
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if(result != HAL_OK)
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return result;
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sensor->isInitialized = 1;
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return HAL_OK;
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}
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else
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{
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return HAL_ERROR;
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}
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}
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/**
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* @brief Èíèöèàëèçèðóåò ñòðóêòóðó äàò÷èêà ïî ïîëüçîâàòåëüñêèì áàéòàì
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* @param onewire Óêàçàòåëü íà ñòðóêòóðó OneWire
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @param UserBytes34 Ïîëüçîâàòåëüñêèå áàéòû 3 è 4, NULL äëÿ èãíîðà
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* @param UserBytes12 Ïîëüçîâàòåëüñêèå áàéòû 1 è 2, NULL äëÿ èãíîðà
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* @retval HAL Status
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* @details ñòàðøèé áàéò - UserByte4/UserByte2, ìëàäøèé - UserByte3/UserByte1.
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*/
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HAL_StatusTypeDef Dallas_SensorInitByUserBytes(OneWire_t *onewire, DALLAS_HandleTypeDef *sensor, uint16_t UserBytes12, uint16_t UserBytes34)
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{
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HAL_StatusTypeDef result;
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sensor->isInitialized = 0;
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if(onewire == NULL)
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return HAL_ERROR;
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if(sensor == NULL)
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return HAL_ERROR;
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sensor->onewire = onewire;
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uint8_t UserByte1 = UserBytes12 & 0xFF;
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uint8_t UserByte2 = UserBytes12 >> 8;
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uint8_t UserByte3 = UserBytes34 & 0xFF;
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uint8_t UserByte4 = UserBytes34 >> 8;
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uint8_t UserByte12Cmp = 0;
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uint8_t UserByte34Cmp = 0;
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for(int i = 0; i < DS18B20_DEVICE_AMOUNT; i++)
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{
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UserByte12Cmp = 0; UserByte34Cmp = 0;
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sensor->sensROM = &DS.DevAddr[i];
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/* Ïðîâåðêà ïðèñóòñòâóåò ëè âûáðàííûé äàò÷èê íà ëèíèè */
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result = Dallas_IsConnected(sensor);
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if (result != HAL_OK)
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return result;
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/* Ñðàâíåíèå UserByte1 è UserByte2, åñëè âûáðàíî */
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if(UserBytes12 != NULL)
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{
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if( (sensor->scratchpad.tHighRegister == UserByte1) &&
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(sensor->scratchpad.tLowRegister == UserByte2))
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{
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UserByte12Cmp = 1;
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}
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}/* Åñëè ðàâíåíèå UserByte1 è UserByte2 íå âûáðàíî, òî ñ÷èòàåì ÷òî îíè îäèíàêîâûå */
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else
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{
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UserByte12Cmp = 1;
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}
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/* Ñðàâíåíèå UserByte3 è UserByte4, åñëè âûáðàíî */
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if(UserBytes34 != NULL)
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{
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if( (sensor->scratchpad.UserByte3 == UserByte3) &&
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(sensor->scratchpad.UserByte4 == UserByte4))
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{
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UserByte34Cmp = 1;
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}
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}/* Åñëè ðàâíåíèå UserByte3 è UserByte4 íå âûáðàíî, òî ñ÷èòàåì ÷òî îíè îäèíàêîâûå */
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else
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{
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UserByte34Cmp = 1;
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}
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/* Åñëè íàøëè íóæíûé äàò÷èê - çàâåðøàåì ïîèñê */
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if(UserByte12Cmp && UserByte34Cmp)
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{
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sensor->isInitialized = 1;
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return HAL_OK;
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}
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}
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/* Âîçâðàùàåì îøèáêó åñëè íå íàøëè */
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return HAL_ERROR;
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}
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/**
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* @brief Èíèöèàëèçèðóåò ñòðóêòóðó äàò÷èêà ïî èíäåêó
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* @param onewire Óêàçàòåëü íà ñòðóêòóðó OneWire
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @param sens_ind Ïîðÿäêîâûé íîìåð äàò÷èêà â ñòðóêòóðå
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* @retval HAL Status
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* @details Èíäåêñ - ýòî ïîðÿäêîâûé íîìåð äàò÷èêà â ñïèñêå íàéäåííûõ.
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* Ò.å. êàêèì ïî ñ÷åòó ýòîò äàò÷èê áûë íàéäåí
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*/
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HAL_StatusTypeDef Dallas_SensorInitByInd(OneWire_t *onewire, DALLAS_HandleTypeDef *sensor, uint8_t sens_ind)
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{
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HAL_StatusTypeDef result;
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sensor->isInitialized = 0;
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if(onewire == NULL)
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return HAL_ERROR;
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if(sensor == NULL)
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return HAL_ERROR;
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sensor->onewire = onewire;
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sensor->sensROM = &DS.DevAddr[sens_ind];
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/* Ïðîâåðêà ïðèñóòñòâóåò ëè âûáðàííûé äàò÷èê íà ëèíèè */
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result = Dallas_IsConnected(sensor);
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if (result != HAL_OK)
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return result;
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sensor->isInitialized = 1;
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return HAL_OK;
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}
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/**
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* @brief Çàïóñêàåò èçìåðåíèå òåìïåðàòóðû íà âñåõ äàò÷èêàõ
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* @param waitCondition Óñëîâèå îæèäàíèÿ çàâåðøåíèÿ ïðåîáðàçîâàíèÿ
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* @retval HAL Status
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*/
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HAL_StatusTypeDef Dallas_StartConvertTAll(OneWire_t *onewire, DALLAS_WaitCondition waitCondition, uint8_t dallas_delay_ms)
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{
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HAL_StatusTypeDef result;
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uint8_t rxDummyData;
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// Îòïðàâêà êîìàíäû íà÷àëà ïðåîáðàçîâàíèÿ òåìïåðàòóðû
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result = DS18B20_StartConvTAll(onewire);
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if(result != HAL_OK)
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{
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return result;
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}
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// Îæèäàíèå çàâåðøåíèÿ ïðåîáðàçîâàíèÿ, ïóòåì ïðîâåðêè øèíû
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if (waitCondition == DALLAS_WAIT_BUS)
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{
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result = DS18B20_WaitForEndConvertion(onewire);
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return result;
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}
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// Îæèäàíèå çàâåðøåíèÿ ïðåîáðàçîâàíèÿ, ïóòåì çàäåðæêè
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if (waitCondition == DALLAS_WAIT_DELAY)
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{
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uint32_t delayValueMs = 0;
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switch (dallas_delay_ms)
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{
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case DALLAS_CONFIG_9_BITS:
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delayValueMs = DALLAS_DELAY_MS_9_BITS;
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break;
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case DALLAS_CONFIG_10_BITS:
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delayValueMs = DALLAS_DELAY_MS_10_BITS;
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break;
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case DALLAS_CONFIG_11_BITS:
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delayValueMs = DALLAS_DELAY_MS_11_BITS;
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break;
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case DALLAS_CONFIG_12_BITS:
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delayValueMs = DALLAS_DELAY_MS_12_BITS;
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break;
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default:
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break;
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}
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HAL_Delay(delayValueMs);
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}
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return result;
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}
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/**
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* @brief Èçìåðÿåò òåìïåðàòóðó íà äàò÷èêå
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @param waitCondition Óñëîâèå îæèäàíèÿ çàâåðøåíèÿ ïðåîáðàçîâàíèÿ
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* @retval HAL Status
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*/
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HAL_StatusTypeDef Dallas_ConvertT(DALLAS_HandleTypeDef *sensor, DALLAS_WaitCondition waitCondition)
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{
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HAL_StatusTypeDef result;
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uint8_t rxDummyData;
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/* Ïðîâåðêà ïðèñóòñòâóåò ëè âûáðàííûé äàò÷èê íà ëèíèè */
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result = Dallas_IsConnected(sensor);
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if (result != HAL_OK)
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return result;
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// Îòïðàâêà êîìàíäû íà÷àëà ïðåîáðàçîâàíèÿ òåìïåðàòóðû
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result = DS18B20_StartConvT(sensor->onewire, (uint8_t *)sensor->sensROM);
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if(result != HAL_OK)
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{
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return result;
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}
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// Îæèäàíèå çàâåðøåíèÿ ïðåîáðàçîâàíèÿ, ïóòåì ïðîâåðêè øèíû
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if (waitCondition == DALLAS_WAIT_BUS)
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{
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result = DS18B20_WaitForEndConvertion(sensor->onewire);
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if(result == HAL_TIMEOUT)
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{
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sensor->f.timeout_convertion_cnt++;
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}
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return result;
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}
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// Îæèäàíèå çàâåðøåíèÿ ïðåîáðàçîâàíèÿ, ïóòåì çàäåðæêè
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if (waitCondition == DALLAS_WAIT_DELAY)
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{
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uint32_t delayValueMs = 0;
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switch (sensor->scratchpad.ConfigRegister)
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{
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case DALLAS_CONFIG_9_BITS:
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delayValueMs = DALLAS_DELAY_MS_9_BITS;
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break;
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case DALLAS_CONFIG_10_BITS:
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delayValueMs = DALLAS_DELAY_MS_10_BITS;
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break;
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case DALLAS_CONFIG_11_BITS:
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delayValueMs = DALLAS_DELAY_MS_11_BITS;
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break;
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case DALLAS_CONFIG_12_BITS:
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delayValueMs = DALLAS_DELAY_MS_12_BITS;
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break;
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default:
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break;
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}
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HAL_Delay(delayValueMs);
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}
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/* Íå ñ÷èòûâàåì òåìïåðàòóðó, åñëè íå âûáðàíî îæèäàíèå îêîí÷àíèÿ ïðåîáðàçîâàíèÿ */
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if(waitCondition != DALLAS_WAIT_NONE)
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{
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result = Dallas_ReadTemperature(sensor);
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}
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return result;
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}
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/**
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* @brief ×èòàåò ñîäåðæèìîå ïàìÿòè (scratchpad) äàò÷èêà DALLAS_HandleTypeDef
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @retval HAL Status
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*/
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HAL_StatusTypeDef Dallas_ReadTemperature(DALLAS_HandleTypeDef *sensor)
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{
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HAL_StatusTypeDef result;
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/* Ïðîâåðêà ïðèñóòñòâóåò ëè âûáðàííûé äàò÷èê íà ëèíèè */
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result = Dallas_IsConnected(sensor);
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if (result != HAL_OK)
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return result;
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result = DS18B20_CalcTemperature(sensor->onewire, (uint8_t *)sensor->sensROM, (uint8_t *)&sensor->scratchpad, &sensor->temperature);
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if (result != HAL_OK)
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{
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sensor->f.read_temperature_err_cnt++;
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return result;
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}
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return HAL_OK;
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}
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/**
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* @brief Âûïîëíÿåò êîìàíäó èíèöèàëèçàöèè DALLAS_HandleTypeDef
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* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
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* @retval HAL Status
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*/
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HAL_StatusTypeDef Dallas_IsConnected(DALLAS_HandleTypeDef *sensor)
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{
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HAL_StatusTypeDef result;
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result = DS18B20_ReadScratchpad(sensor->onewire, (uint8_t *)sensor->sensROM, (uint8_t *)&sensor->scratchpad);
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if (result == HAL_OK)
|
|
{
|
|
sensor->isConnected = 1;
|
|
return HAL_OK;
|
|
}
|
|
else
|
|
{
|
|
if(sensor->isConnected == 1)
|
|
{
|
|
sensor->f.disconnect_cnt++;
|
|
}
|
|
sensor->isConnected = 0;
|
|
return HAL_BUSY; // èñïîëüçóþ busy, ÷òîáû îòëè÷àòü ñèòóàöèþ îò HAL_ERROR
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Çàïèñûâàåò ïîëüçîâàòåëüñêèå áàéòû
|
|
* @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
|
|
* @param UserBytes12 Ïîëüçîâàòåëüñêèå áàéòû 1 è 2
|
|
* @param UserBytes34 Ïîëüçîâàòåëüñêèå áàéòû 3 è 4
|
|
* @param UserBytesMask Ìàñêà, êàêèå áàéòû çàïèñûâàòü, à êàêèå íåò
|
|
* @retval HAL Status
|
|
* @details ñòàðøèé áàéò - UserByte4/UserByte2, ìëàäøèé - UserByte3/UserByte1.
|
|
*/
|
|
HAL_StatusTypeDef Dallas_WriteUserBytes(DALLAS_HandleTypeDef *sensor, uint16_t UserBytes12, uint16_t UserBytes34, uint8_t UserBytesMask)
|
|
{
|
|
HAL_StatusTypeDef result = DS18B20_WriteUserBytes(sensor->onewire, (uint8_t *)sensor->sensROM, UserBytes12, UserBytes34, UserBytesMask);
|
|
if (result != HAL_OK)
|
|
{
|
|
sensor->f.read_temperature_err_cnt++;
|
|
return result;
|
|
}
|
|
result = DS18B20_ReadScratchpad(sensor->onewire, (uint8_t *)sensor->sensROM, (uint8_t *)&sensor->scratchpad);
|
|
if (result != HAL_OK)
|
|
{
|
|
sensor->f.read_temperature_err_cnt++;
|
|
return result;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
///**
|
|
// * @brief ×èòàåò óíèêàëüíûé ROM-êîä äàò÷èêà DALLAS_HandleTypeDef
|
|
// * @param sensor Óêàçàòåëü íà ñòðóêòóðó äàò÷èêà
|
|
// * @retval HAL Status
|
|
// */
|
|
//HAL_StatusTypeDef Dallas_ReadRom(DALLAS_HandleTypeDef *sensor)
|
|
//{
|
|
// HAL_StatusTypeDef result = HAL_OK;
|
|
// uint8_t rxData[DALLAS_READ_ROM_RX_BYTES_NUM];
|
|
//
|
|
// DS18B20_ReadScratchpad(sensor->onewire, sensor->sensROM, (uint8_t *)&sensor->scratchpad);
|
|
//
|
|
//
|
|
// if (result == HAL_OK)
|
|
// {
|
|
// for (uint8_t i = 0; i < DALLAS_SERIAL_NUMBER_LEN_BYTES; i++)
|
|
// {
|
|
// sensor->sensROM[i] = rxData[DALLAS_SERIAL_NUMBER_OFFSET_BYTES + i];
|
|
// }
|
|
// }
|
|
|
|
// return result;
|
|
//}
|