DashyFox/IR-protocol
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DashyFox
2023-10-06 13:35:33 +03:00
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IR_config.h Normal file
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#pragma once
#include <Arduino.h>
/*//////////////////////////////////////////////////////////////////////////////////////
Адресация с 1 до 65 499
65 500 ~ 65 535 - широковещательные пакеты (всем), возможно разделить на 35 типов
Адрес 0 запрещен и зарезервирован под NULL
IR_MSG_ACCEPT с адреса 0 воспринимается всеми устройствами
/```````````````````````````````````````````````` data pack `````````````````````````````````````````````\                                  
                                                                                                         
{``````````} [````````````````````````] [````````````````````] [````````````````````````] [``````````````]
{ msg type } [ addr_self uint16_t ] [ addr_to uint16_t ] [ data bytes ] [ CRC Bytes ]
{..........} [........................] [....................] [........................] [..............]
                                                                                                          
{ aka size } [addr_self_H][addr_self_L] [addr_to_H][addr_to_L] [data_H][data_n..][data_L] [ crc1 ][ crc2 ]
|     0           1            2              3         4          5                         |       |    
\____________________________________________________________________________________________/       |    
|                                                                                                    |    
\____________________________________________________________________________________________________/    
msg type:
                                        //  __________
                                        // | 01234567 |
                                        //  ----------
                                        // | xxx..... | = тип сообщения
                                        // | ...xxxxx | = длина (максимум 32 бита)
                                        //  ---------- */
#define IR_MSG_ 0U // | 000..... | = = ??
#define IR_MSG_ACCEPT 1U // | 001..... | = */ /* = подтверждение
#define IR_MSG_REQUEST 2U // | 010..... | = */ /* = запрос
#define IR_MSG_ 3U // | 011..... | = */ /* = ??
#define IR_MSG_ 4U // | 100..... | = */ /* = ??
#define IR_MSG_ 5U // | 101..... | = */ /* = ??
#define IR_MSG_DATA_NOACCEPT 6U // | 110..... | = */ /* = данные, не требующие подтверждения
//                                      // | \\\xxxxx | = = L длина данных
#define IR_MSG_DATA_ACCEPT 7U // | 111..... | = */ /* = данные требующие подтверждения
//                                      // | \\\xxxxx | = = L длина данных
/*   // ----------
/```````````````````` подтверждение ```````````````````\      /``````````````````````````````````````` запрос ``````````````````````````````````\
                                                                                                                      
{``````````} [````````````````````````] [``````````````]      {``````````} [````````````````````````] [````````````````````````] [``````````````]
{ msg type } [ addr_self uint16_t ] [ CRC Bytes ]      { msg type } [ addr_self uint16_t ] [ addr_to uint16_t ] [ CRC Bytes ]
{..........} [........................] [..............]      {..........} [........................] [........................] [..............]
                                                                                                                                                 
{ 001..... } [addr_self_H][addr_self_L] [ crc1 ][ crc2 ]      { 010..... } [addr_self_H][addr_self_L] [addr_self_H][addr_self_L] [ crc1 ][ crc2 ]
|     0            1           2           3       4          |     0            1           2              3           4           5       6    
\__________________________________________/       |          \_____________________________________________________________________/       |    
|                                                  |          |                                                                             |    
\__________________________________________________/          \_____________________________________________________________________________/    
*/
#define IR_MASK_MSG_TYPE 0b00000111
#define IR_MASK_MSG_INFO 0b00011111
/*
/////////////////////////////////////////////////////////////////////////////////////*/
#define bytePerPack 3 // колличество байтов в пакете
#define freeFrec true
/////////////////////////////////////////////////////////////////////////////////////
#define bitPerByte 8U // Колличество бит в байте
#define addrBytes 2
#define msgBytes 1
#define crcBytes 2
typedef uint16_t crc_t;
#define poly1 0x31
#define poly2 0x8C
#define syncBits 3U // количество битов синхронизации
#define dataByteSizeMax (msgBytes + addrBytes + addrBytes + bytePerPack + crcBytes)
// размер msg в битах // размер короткой посылки в битах
#define dataBitSize ((8 + syncBits) * dataByteSizeMax) // размер посылки с данными в битах
#define bufferBitSizeMax (dataBitSize) // Размер буффера в битах
//const auto x = bufferBitSizeMax;
#define preambPulse 3U
#define preambFronts (preambPulse*2) // количество фронтов преамбулы
#define carrierFrec 38000U // частота несущей
#define carrierPeriod (1000000U/carrierFrec) // период несущей в us
// В процессе работы значения будут отклонятся в соответствии с предыдущим битом
#define bitActiveTakts 25U // длительность активной части бита в тактах
#define bitPauseTakts 5U // длительность промежутков в тактах
#define bitTakts (bitActiveTakts+bitPauseTakts*2U) // Общая длительность бита в тактах
#define bitTime (bitTakts*carrierPeriod) // Общая длительность бита
//const auto viewValue = bitTime;
#define tolerance 300U
class IR_FOX {
private:
bool isSending = false;
public:
uint8_t crc8(uint8_t* data, uint8_t start, uint8_t end, uint8_t poly) { //TODO: сделать возможность межбайтовой проверки
uint8_t crc = 0xff;
size_t i, j;
for (i = start; i < end; i++) {
crc ^= data[i];
for (j = 0; j < 8; j++) {
if ((crc & 0x80) != 0)
crc = (uint8_t)((crc << 1) ^ poly);
else
crc <<= 1;
}
}
return crc;
}
};