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IthoCC1101.cpp
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IthoCC1101.cpp
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/*
* Author: Klusjesman, modified bij supersjimmie for Arduino/ESP8266
*/
#include "IthoCC1101.h"
#include <string.h>
#include <Arduino.h>
#include <SPI.h>
// default constructor
IthoCC1101::IthoCC1101(uint8_t counter, uint8_t sendTries) : CC1101()
{
this->outIthoPacket.counter = counter;
this->outIthoPacket.previous = low;
this->sendTries = sendTries;
this->receiveState = ExpectMessageStart;
//fixed device id
this->outIthoPacket.deviceId[0] = 101;
this->outIthoPacket.deviceId[1] = 89;
this->outIthoPacket.deviceId[2] = 154;
this->outIthoPacket.deviceId[3] = 153;
this->outIthoPacket.deviceId[4] = 170;
this->outIthoPacket.deviceId[5] = 105;
this->outIthoPacket.deviceId[6] = 154;
this->outIthoPacket.deviceId[7] = 86;
} //IthoCC1101
// default destructor
IthoCC1101::~IthoCC1101()
{
} //~IthoCC1101
void IthoCC1101::initSendMessage1()
{
/*
Configuration reverse engineered from remote print. The commands below are used by IthoDaalderop.
Base frequency 868.299866MHz
Channel 0
Channel spacing 199.951172kHz
Carrier frequency 868.299866MHz
Xtal frequency 26.000000MHz
Data rate 8.00896kBaud
Manchester disabled
Modulation 2-FSK
Deviation 25.390625kHz
TX power ?
PA ramping enabled
Whitening disabled
*/
writeCommand(CC1101_SRES);
delayMicroseconds(1);
writeRegister(CC1101_IOCFG0 ,0x2E); //High impedance (3-state)
writeRegister(CC1101_FREQ2 ,0x21); //00100001 878MHz-927.8MHz
writeRegister(CC1101_FREQ1 ,0x65); //01100101
writeRegister(CC1101_FREQ0 ,0x6A); //01101010
writeRegister(CC1101_MDMCFG4 ,0x07); //00000111
writeRegister(CC1101_MDMCFG3 ,0x43); //01000011
writeRegister(CC1101_MDMCFG2 ,0x00); //00000000 2-FSK, no manchester encoding/decoding, no preamble/sync
writeRegister(CC1101_MDMCFG1 ,0x22); //00100010
writeRegister(CC1101_MDMCFG0 ,0xF8); //11111000
writeRegister(CC1101_CHANNR ,0x00); //00000000
writeRegister(CC1101_DEVIATN ,0x40); //01000000
writeRegister(CC1101_FREND0 ,0x17); //00010111 use index 7 in PA table
writeRegister(CC1101_MCSM0 ,0x18); //00011000 PO timeout Approx. 146µs - 171µs, Auto calibrate When going from IDLE to RX or TX (or FSTXON)
writeRegister(CC1101_FSCAL3 ,0xA9); //10101001
writeRegister(CC1101_FSCAL2 ,0x2A); //00101010
writeRegister(CC1101_FSCAL1 ,0x00); //00000000
writeRegister(CC1101_FSCAL0 ,0x11); //00010001
writeRegister(CC1101_FSTEST ,0x59); //01011001 For test only. Do not write to this register.
writeRegister(CC1101_TEST2 ,0x81); //10000001 For test only. Do not write to this register.
writeRegister(CC1101_TEST1 ,0x35); //00110101 For test only. Do not write to this register.
writeRegister(CC1101_TEST0 ,0x0B); //00001011 For test only. Do not write to this register.
writeRegister(CC1101_PKTCTRL0 ,0x12); //00010010 Enable infinite length packets, CRC disabled, Turn data whitening off, Serial Synchronous mode
writeRegister(CC1101_ADDR ,0x00); //00000000
writeRegister(CC1101_PKTLEN ,0xFF); //11111111 //Not used, no hardware packet handling
//0x6F,0x26,0x2E,0x8C,0x87,0xCD,0xC7,0xC0
writeBurstRegister(CC1101_PATABLE | CC1101_WRITE_BURST, (uint8_t*)ithoPaTableSend, 8);
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SIDLE);
writeRegister(CC1101_MDMCFG4 ,0x08); //00001000
writeRegister(CC1101_MDMCFG3 ,0x43); //01000011
writeRegister(CC1101_DEVIATN ,0x40); //01000000
writeRegister(CC1101_IOCFG0 ,0x2D); //GDO0_Z_EN_N. When this output is 0, GDO0 is configured as input (for serial TX data).
writeRegister(CC1101_IOCFG1 ,0x0B); //Serial Clock. Synchronous to the data in synchronous serial mode.
writeCommand(CC1101_STX);
writeCommand(CC1101_SIDLE);
delayMicroseconds(1);
writeCommand(CC1101_SIDLE);
writeRegister(CC1101_MDMCFG4 ,0x08); //00001000
writeRegister(CC1101_MDMCFG3 ,0x43); //01000011
writeRegister(CC1101_DEVIATN ,0x40); //01000000
//writeRegister(CC1101_IOCFG0 ,0x2D); //GDO0_Z_EN_N. When this output is 0, GDO0 is configured as input (for serial TX data).
//writeRegister(CC1101_IOCFG1 ,0x0B); //Serial Clock. Synchronous to the data in synchronous serial mode.
//Itho is using serial mode for transmit. We want to use the TX FIFO with fixed packet length for simplicity.
writeRegister(CC1101_IOCFG0 ,0x2E);
writeRegister(CC1101_IOCFG1 ,0x2E);
writeRegister(CC1101_PKTLEN , 19);
writeRegister(CC1101_PKTCTRL0 ,0x00);
writeRegister(CC1101_PKTCTRL1 ,0x00);
}
void IthoCC1101::initSendMessage2(IthoCommand command)
{
//finishTransfer();
writeCommand(CC1101_SIDLE);
delayMicroseconds(1);
writeRegister(CC1101_IOCFG0 ,0x2E);
delayMicroseconds(1);
writeRegister(CC1101_IOCFG1 ,0x2E);
delayMicroseconds(1);
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SPWD);
delayMicroseconds(1);
/*
Configuration reverse engineered from remote print. The commands below are used by IthoDaalderop.
Base frequency 868.299866MHz
Channel 0
Channel spacing 199.951172kHz
Carrier frequency 868.299866MHz
Xtal frequency 26.000000MHz
Data rate 38.3835kBaud
Manchester disabled
Modulation 2-FSK
Deviation 50.781250kHz
TX power ?
PA ramping enabled
Whitening disabled
*/
writeCommand(CC1101_SRES);
delayMicroseconds(1);
writeRegister(CC1101_IOCFG0 ,0x2E); //High impedance (3-state)
writeRegister(CC1101_FREQ2 ,0x21); //00100001 878MHz-927.8MHz
writeRegister(CC1101_FREQ1 ,0x65); //01100101
writeRegister(CC1101_FREQ0 ,0x6A); //01101010
writeRegister(CC1101_MDMCFG4 ,0x5A); //difference compared to message1
writeRegister(CC1101_MDMCFG3 ,0x83); //difference compared to message1
writeRegister(CC1101_MDMCFG2 ,0x00); //00000000 2-FSK, no manchester encoding/decoding, no preamble/sync
writeRegister(CC1101_MDMCFG1 ,0x22); //00100010
writeRegister(CC1101_MDMCFG0 ,0xF8); //11111000
writeRegister(CC1101_CHANNR ,0x00); //00000000
writeRegister(CC1101_DEVIATN ,0x50); //difference compared to message1
writeRegister(CC1101_FREND0 ,0x17); //00010111 use index 7 in PA table
writeRegister(CC1101_MCSM0 ,0x18); //00011000 PO timeout Approx. 146µs - 171µs, Auto calibrate When going from IDLE to RX or TX (or FSTXON)
writeRegister(CC1101_FSCAL3 ,0xA9); //10101001
writeRegister(CC1101_FSCAL2 ,0x2A); //00101010
writeRegister(CC1101_FSCAL1 ,0x00); //00000000
writeRegister(CC1101_FSCAL0 ,0x11); //00010001
writeRegister(CC1101_FSTEST ,0x59); //01011001 For test only. Do not write to this register.
writeRegister(CC1101_TEST2 ,0x81); //10000001 For test only. Do not write to this register.
writeRegister(CC1101_TEST1 ,0x35); //00110101 For test only. Do not write to this register.
writeRegister(CC1101_TEST0 ,0x0B); //00001011 For test only. Do not write to this register.
writeRegister(CC1101_PKTCTRL0 ,0x12); //00010010 Enable infinite length packets, CRC disabled, Turn data whitening off, Serial Synchronous mode
writeRegister(CC1101_ADDR ,0x00); //00000000
writeRegister(CC1101_PKTLEN ,0xFF); //11111111 //Not used, no hardware packet handling
//0x6F,0x26,0x2E,0x8C,0x87,0xCD,0xC7,0xC0
writeBurstRegister(CC1101_PATABLE | CC1101_WRITE_BURST, (uint8_t*)ithoPaTableSend, 8);
//difference, message1 sends a STX here
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SIDLE);
writeRegister(CC1101_MDMCFG4 ,0x5A); //difference compared to message1
writeRegister(CC1101_MDMCFG3 ,0x83); //difference compared to message1
writeRegister(CC1101_DEVIATN ,0x50); //difference compared to message1
writeRegister(CC1101_IOCFG0 ,0x2D); //GDO0_Z_EN_N. When this output is 0, GDO0 is configured as input (for serial TX data).
writeRegister(CC1101_IOCFG1 ,0x0B); //Serial Clock. Synchronous to the data in synchronous serial mode.
writeCommand(CC1101_STX);
writeCommand(CC1101_SIDLE);
writeRegister(CC1101_MDMCFG4 ,0x5A); //difference compared to message1
writeRegister(CC1101_MDMCFG3 ,0x83); //difference compared to message1
writeRegister(CC1101_DEVIATN ,0x50); //difference compared to message1
//writeRegister(CC1101_IOCFG0 ,0x2D); //GDO0_Z_EN_N. When this output is 0, GDO0 is configured as input (for serial TX data).
//writeRegister(CC1101_IOCFG1 ,0x0B); //Serial Clock. Synchronous to the data in synchronous serial mode.
//Itho is using serial mode for transmit. We want to use the TX FIFO with fixed packet length for simplicity.
writeRegister(CC1101_IOCFG0 ,0x2E);
writeRegister(CC1101_IOCFG1 ,0x2E);
writeRegister(CC1101_PKTCTRL0 ,0x00);
writeRegister(CC1101_PKTCTRL1 ,0x00);
switch (command)
{
case join:
writeRegister(CC1101_PKTLEN , 72);
break;
case leave:
writeRegister(CC1101_PKTLEN , 57);
break;
default:
writeRegister(CC1101_PKTLEN , 50);
break;
}
}
void IthoCC1101::finishTransfer()
{
writeCommand(CC1101_SIDLE);
delayMicroseconds(1);
writeRegister(CC1101_IOCFG0 ,0x2E);
writeRegister(CC1101_IOCFG1 ,0x2E);
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SPWD);
}
void IthoCC1101::initReceive()
{
/*
Configuration reverse engineered from RFT print.
Base frequency 868.299866MHz
Channel 0
Channel spacing 199.951172kHz
Carrier frequency 868.299866MHz
Xtal frequency 26.000000MHz
Data rate 38.3835kBaud
RX filter BW 325.000000kHz
Manchester disabled
Modulation 2-FSK
Deviation 50.781250kHz
TX power 0x6F,0x26,0x2E,0x7F,0x8A,0x84,0xCA,0xC4
PA ramping enabled
Whitening disabled
*/
writeCommand(CC1101_SRES);
writeRegister(CC1101_TEST0 ,0x09);
writeRegister(CC1101_FSCAL2 ,0x00);
//0x6F,0x26,0x2E,0x7F,0x8A,0x84,0xCA,0xC4
writeBurstRegister(CC1101_PATABLE | CC1101_WRITE_BURST, (uint8_t*)ithoPaTableReceive, 8);
writeCommand(CC1101_SCAL);
//wait for calibration to finish
while ((readRegisterWithSyncProblem(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)) != CC1101_MARCSTATE_IDLE) yield();
writeRegister(CC1101_FSCAL2 ,0x00);
writeRegister(CC1101_MCSM0 ,0x18); //no auto calibrate
writeRegister(CC1101_FREQ2 ,0x21);
writeRegister(CC1101_FREQ1 ,0x65);
writeRegister(CC1101_FREQ0 ,0x6A);
writeRegister(CC1101_IOCFG0 ,0x2E); //High impedance (3-state)
writeRegister(CC1101_IOCFG2 ,0x2E); //High impedance (3-state)
writeRegister(CC1101_FSCTRL1 ,0x06);
writeRegister(CC1101_FSCTRL0 ,0x00);
writeRegister(CC1101_MDMCFG4 ,0x5A);
writeRegister(CC1101_MDMCFG3 ,0x83);
writeRegister(CC1101_MDMCFG2 ,0x00); //Enable digital DC blocking filter before demodulator, 2-FSK, Disable Manchester encoding/decoding, No preamble/sync
writeRegister(CC1101_MDMCFG1 ,0x22); //Disable FEC
writeRegister(CC1101_MDMCFG0 ,0xF8);
writeRegister(CC1101_CHANNR ,0x00);
writeRegister(CC1101_DEVIATN ,0x50);
writeRegister(CC1101_FREND1 ,0x56);
writeRegister(CC1101_FREND0 ,0x17);
writeRegister(CC1101_MCSM0 ,0x18); //no auto calibrate
writeRegister(CC1101_FOCCFG ,0x16);
writeRegister(CC1101_BSCFG ,0x6C);
writeRegister(CC1101_AGCCTRL2 ,0x43);
writeRegister(CC1101_AGCCTRL1 ,0x40);
writeRegister(CC1101_AGCCTRL0 ,0x91);
writeRegister(CC1101_FSCAL3 ,0xA9);
writeRegister(CC1101_FSCAL2 ,0x2A);
writeRegister(CC1101_FSCAL1 ,0x00);
writeRegister(CC1101_FSCAL0 ,0x11);
writeRegister(CC1101_FSTEST ,0x59);
writeRegister(CC1101_TEST2 ,0x81);
writeRegister(CC1101_TEST1 ,0x35);
writeRegister(CC1101_TEST0 ,0x0B);
writeRegister(CC1101_PKTCTRL1 ,0x04); //No address check, Append two bytes with status RSSI/LQI/CRC OK,
writeRegister(CC1101_PKTCTRL0 ,0x32); //Infinite packet length mode, CRC disabled for TX and RX, No data whitening, Asynchronous serial mode, Data in on GDO0 and data out on either of the GDOx pins
writeRegister(CC1101_ADDR ,0x00);
writeRegister(CC1101_PKTLEN ,0xFF);
writeRegister(CC1101_TEST0 ,0x09);
writeRegister(CC1101_FSCAL2 ,0x00);
writeCommand(CC1101_SCAL);
//wait for calibration to finish
while ((readRegisterWithSyncProblem(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)) != CC1101_MARCSTATE_IDLE) yield();
writeRegister(CC1101_MCSM0 ,0x18); //no auto calibrate
writeCommand(CC1101_SIDLE);
writeCommand(CC1101_SIDLE);
writeRegister(CC1101_MDMCFG2 ,0x00); //Enable digital DC blocking filter before demodulator, 2-FSK, Disable Manchester encoding/decoding, No preamble/sync
writeRegister(CC1101_IOCFG0 ,0x0D); //Serial Data Output. Used for asynchronous serial mode.
writeCommand(CC1101_SRX);
while ((readRegisterWithSyncProblem(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)) != CC1101_MARCSTATE_RX) yield();
initReceiveMessage1();
}
void IthoCC1101::initReceiveMessage1()
{
uint8_t marcState;
writeCommand(CC1101_SIDLE); //idle
//set datarate
writeRegister(CC1101_MDMCFG4 ,0x08);
writeRegister(CC1101_MDMCFG3 ,0x43);
writeRegister(CC1101_DEVIATN ,0x40);
//set fifo mode with fixed packet length and sync bytes
writeRegister(CC1101_PKTLEN , 15); //15 bytes message (sync at beginning of message is removed by CC1101)
writeRegister(CC1101_PKTCTRL0 ,0x00);
writeRegister(CC1101_SYNC1 ,170); //message1 byte2
writeRegister(CC1101_SYNC0 ,173); //message1 byte3
writeRegister(CC1101_MDMCFG2 ,0x02);
writeRegister(CC1101_PKTCTRL1 ,0x00);
writeCommand(CC1101_SRX); //switch to RX state
// Check that the RX state has been entered
while (((marcState = readRegisterWithSyncProblem(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)) & CC1101_BITS_MARCSTATE) != CC1101_MARCSTATE_RX)
{
if (marcState == CC1101_MARCSTATE_RXFIFO_OVERFLOW) // RX_OVERFLOW
writeCommand(CC1101_SFRX); //flush RX buffer
yield();
}
receiveState = ExpectMessageStart;
}
void IthoCC1101::initReceiveMessage2(IthoCommand expectedCommand)
{
uint8_t marcState;
writeCommand(CC1101_SIDLE); //idle
//set datarate
writeRegister(CC1101_MDMCFG4 ,0x5A);
writeRegister(CC1101_MDMCFG3 ,0x83);
writeRegister(CC1101_DEVIATN ,0x50);
//set packet length based on expected message
switch (expectedCommand)
{
case join:
writeRegister(CC1101_PKTLEN ,64);
receiveState = ExpectJoinCommand;
break;
case leave:
writeRegister(CC1101_PKTLEN ,57);
receiveState = ExpectLeaveCommand;
break;
default:
writeRegister(CC1101_PKTLEN ,42); //42 bytes message (sync at beginning of message is removed by CC1101)
receiveState = ExpectNormalCommand;
break;
}
//set fifo mode with fixed packet length and sync bytes
writeRegister(CC1101_PKTCTRL0 ,0x00);
writeRegister(CC1101_SYNC1 ,170); //message2 byte6
writeRegister(CC1101_SYNC0 ,171); //message2 byte7
writeRegister(CC1101_MDMCFG2 ,0x02);
writeRegister(CC1101_PKTCTRL1 ,0x00);
writeCommand(CC1101_SRX); //switch to RX state
// Check that the RX state has been entered
while (((marcState = readRegisterWithSyncProblem(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)) & CC1101_BITS_MARCSTATE) != CC1101_MARCSTATE_RX)
{
if (marcState == CC1101_MARCSTATE_RXFIFO_OVERFLOW) // RX_OVERFLOW
writeCommand(CC1101_SFRX); //flush RX buffer
yield();
}
}
bool IthoCC1101::checkForNewPacket()
{
bool result = false;
uint8_t length;
switch (receiveState)
{
case ExpectMessageStart:
length = receiveData(&inMessage1, 15);
//check if message1 is received
if ((length > 0) && (isValidMessageStart()))
{
parseMessageStart();
//switch to message2 RF settings
initReceiveMessage2(inIthoPacket.command);
lastMessage1Received = millis();
}
break;
case ExpectNormalCommand:
length = receiveData(&inMessage2, 42);
//check if message2 is received
if ((length > 0) && (isValidMessageCommand()))
{
parseMessageCommand();
//bug detection
//testCreateMessage();
//switch back to message1 RF settings
initReceiveMessage1();
//both messages are received
result = true;
}
else
{
//check if waiting timeout is reached (message2 is expected within 22ms after message1)
if (millis() - lastMessage1Received > 24)
{
//switch back to message1 RF settings
initReceiveMessage1();
}
}
break;
case ExpectJoinCommand:
length = receiveData(&inMessage2, 64);
//check if message2 is received
if ((length > 0) && (isValidMessageCommand()) && isValidMessageJoin())
{
parseMessageCommand();
parseMessageJoin();
//bug detection
//testCreateMessage();
//switch back to message1 RF settings
initReceiveMessage1();
//both messages are received
result = true;
}
else
{
//check if waiting timeout is reached (message2 is expected within 22ms after message1)
if (millis() - lastMessage1Received > 24)
{
//switch back to message1 RF settings
initReceiveMessage1();
}
}
break;
case ExpectLeaveCommand:
length = receiveData(&inMessage2, 45);
//check if message2 is received
if ((length > 0) && (isValidMessageCommand()) && isValidMessageLeave())
{
parseMessageCommand();
parseMessageLeave();
//bug detection
//testCreateMessage();
//switch back to message1 RF settings
initReceiveMessage1();
//both messages are received
result = true;
}
else
{
//check if waiting timeout is reached (message2 is expected within 22ms after message1)
if (millis() - lastMessage1Received > 24)
{
//switch back to message1 RF settings
initReceiveMessage1();
}
}
break;
}
return result;
}
bool IthoCC1101::isValidMessageStart()
{
if (inMessage1.data[12] != 170)
{
return false;
}
return true;
}
bool IthoCC1101::isValidMessageCommand()
{
if (inMessage2.data[37] != 170)
{
return false;
}
return true;
}
bool IthoCC1101::isValidMessageJoin()
{
/*
if (inMessage2.data[37] != 170)
{
return false;
}
*/
return true;
}
bool IthoCC1101::isValidMessageLeave()
{
/*
if (inMessage2.data[37] != 170)
{
return false;
}
*/
return true;
}
void IthoCC1101::parseMessageStart()
{
bool isFullCommand = true;
bool isMediumCommand = true;
bool isLowCommand = true;
bool isTimer1Command = true;
bool isTimer2Command = true;
bool isTimer3Command = true;
bool isJoinCommand = true;
bool isLeaveCommand = true;
//copy device id from packet
// TODO: verify if this really is this the device id
inIthoPacket.deviceId[0] = inMessage1.data[2];
inIthoPacket.deviceId[1] = inMessage1.data[3];
inIthoPacket.deviceId[2] = inMessage1.data[4] & 0b11111110; //last bit is part of command
//copy command data from packet
//message1 command starts at index 5, last bit!
uint8_t commandBytes[7];
commandBytes[0] = inMessage1.data[5] & 0b00000001;
commandBytes[1] = inMessage1.data[6];
commandBytes[2] = inMessage1.data[7];
commandBytes[3] = inMessage1.data[8];
commandBytes[4] = inMessage1.data[9];
commandBytes[5] = inMessage1.data[10];
commandBytes[6] = inMessage1.data[11];
//match received commandBytes with known command bytes
for (int i=0; i<7; i++)
{
if (commandBytes[i] != ithoMessage1FullCommandBytes[i]) isFullCommand = false;
if (commandBytes[i] != ithoMessage1MediumCommandBytes[i]) isMediumCommand = false;
if (commandBytes[i] != ithoMessage1LowCommandBytes[i]) isLowCommand = false;
if (commandBytes[i] != ithoMessage1Timer1CommandBytes[i]) isTimer1Command = false;
if (commandBytes[i] != ithoMessage1Timer2CommandBytes[i]) isTimer2Command = false;
if (commandBytes[i] != ithoMessage1Timer3CommandBytes[i]) isTimer3Command = false;
if (commandBytes[i] != ithoMessage1JoinCommandBytes[i]) isJoinCommand = false;
if (commandBytes[i] != ithoMessage1LeaveCommandBytes[i]) isLeaveCommand = false;
}
//determine command
inIthoPacket.command = unknown;
if (isFullCommand) inIthoPacket.command = full;
if (isMediumCommand) inIthoPacket.command = medium;
if (isLowCommand) inIthoPacket.command = low;
if (isTimer1Command) inIthoPacket.command = timer1;
if (isTimer2Command) inIthoPacket.command = timer2;
if (isTimer3Command) inIthoPacket.command = timer3;
if (isJoinCommand) inIthoPacket.command = join;
if (isLeaveCommand) inIthoPacket.command = leave;
//previous command
inIthoPacket.previous = getMessage1PreviousCommand(inMessage1.data[14]);
}
void IthoCC1101::parseMessageCommand()
{
bool isFullCommand = true;
bool isMediumCommand = true;
bool isLowCommand = true;
bool isTimer1Command = true;
bool isTimer2Command = true;
bool isTimer3Command = true;
bool isJoinCommand = true;
bool isLeaveCommand = true;
//device id
inIthoPacket.deviceId[0] = inMessage2.data[8];
inIthoPacket.deviceId[1] = inMessage2.data[9];
inIthoPacket.deviceId[2] = inMessage2.data[10];
inIthoPacket.deviceId[3] = inMessage2.data[11];
inIthoPacket.deviceId[4] = inMessage2.data[12];
inIthoPacket.deviceId[5] = inMessage2.data[13];
inIthoPacket.deviceId[6] = inMessage2.data[14];
inIthoPacket.deviceId[7] = inMessage2.data[15];
//counter1
uint8_t row0 = inMessage2.data[16];
uint8_t row1 = inMessage2.data[17];
uint8_t row2 = inMessage2.data[18] & 0b11110000; //4 bits are part of command
inIthoPacket.counter = calculateMessageCounter(row0, row1, row2);
//copy command data from packet
uint8_t commandBytes[15];
commandBytes[0] = inMessage2.data[18] & 0b00001111; //4 bits are part of counter1
commandBytes[1] = inMessage2.data[19];
commandBytes[2] = inMessage2.data[20];
commandBytes[3] = inMessage2.data[21];
commandBytes[4] = inMessage2.data[22];
commandBytes[5] = inMessage2.data[23];
commandBytes[6] = inMessage2.data[24];
commandBytes[7] = inMessage2.data[25];
commandBytes[8] = inMessage2.data[26];
commandBytes[9] = inMessage2.data[27];
commandBytes[10] = inMessage2.data[28];
commandBytes[11] = inMessage2.data[29];
commandBytes[12] = inMessage2.data[30];
commandBytes[13] = inMessage2.data[31];
commandBytes[14] = inMessage2.data[32];
//match received commandBytes with known command bytes
for (int i=0; i<15; i++)
{
if (commandBytes[i] != ithoMessage2FullCommandBytes[i]) isFullCommand = false;
if (commandBytes[i] != ithoMessage2MediumCommandBytes[i]) isMediumCommand = false;
if (commandBytes[i] != ithoMessage2LowCommandBytes[i]) isLowCommand = false;
if (commandBytes[i] != ithoMessage2Timer1CommandBytes[i]) isTimer1Command = false;
if (commandBytes[i] != ithoMessage2Timer2CommandBytes[i]) isTimer2Command = false;
if (commandBytes[i] != ithoMessage2Timer3CommandBytes[i]) isTimer3Command = false;
if (commandBytes[i] != ithoMessage2JoinCommandBytes[i]) isJoinCommand = false;
if (commandBytes[i] != ithoMessage2LeaveCommandBytes[i]) isLeaveCommand = false;
}
//determine command
inIthoPacket.command = unknown;
if (isFullCommand) inIthoPacket.command = full;
if (isMediumCommand) inIthoPacket.command = medium;
if (isLowCommand) inIthoPacket.command = low;
if (isTimer1Command) inIthoPacket.command = timer1;
if (isTimer2Command) inIthoPacket.command = timer2;
if (isTimer3Command) inIthoPacket.command = timer3;
if (isJoinCommand) inIthoPacket.command = join;
if (isLeaveCommand) inIthoPacket.command = leave;
}
void IthoCC1101::parseMessageJoin()
{
/*
for (int i=0;i<inMessage2.length;i++)
{
Serial.print(inMessage2.data[i]);
Serial.print("\n");
}
*/
}
void IthoCC1101::parseMessageLeave()
{
/*
for (int i=0;i<inMessage2.length;i++)
{
Serial.print(inMessage2.data[i]);
Serial.print("\n");
}
*/
}
//check if we can generate the same input message based on the counter and command only (yes we can!)
void IthoCC1101::testCreateMessage()
{
CC1101Packet outMessage1;
CC1101Packet outMessage2;
//update itho packet data
outIthoPacket.previous = inIthoPacket.previous;
outIthoPacket.command = inIthoPacket.command;
outIthoPacket.counter = inIthoPacket.counter;
//get message1 bytes
createMessageStart(&outIthoPacket, &outMessage1);
for (int i=0; i<inMessage1.length;i++)
{
if (inMessage1.data[i] != outMessage1.data[i+4])
{
Serial.print("message1 not ok=byte");
Serial.print(i+4);
Serial.print(" (");
Serial.print(inMessage1.data[i]);
Serial.print("/");
Serial.print(outMessage1.data[i+4]);
Serial.print(")\n");
}
}
//get message2 bytes
switch (outIthoPacket.command)
{
case join:
createMessageJoin(&outIthoPacket, &outMessage2);
break;
case leave:
createMessageLeave(&outIthoPacket, &outMessage2);
break;
default:
createMessageCommand(&outIthoPacket, &outMessage2);
break;
}
for (int i=0; i<inMessage2.length;i++)
{
if (inMessage2.data[i] != outMessage2.data[i+8])
{
Serial.print("message2 not ok=byte");
Serial.print(i+8);
Serial.print(" (");
Serial.print(inMessage2.data[i]);
Serial.print("/");
Serial.print(outMessage2.data[i+8]);
Serial.print(")\n");
}
}
}
void IthoCC1101::sendCommand(IthoCommand command)
{
CC1101Packet outMessage1;
CC1101Packet outMessage2;
uint8_t maxTries = sendTries;
uint8_t delaytime = 40;
//update itho packet data
outIthoPacket.previous = outIthoPacket.command;
outIthoPacket.command = command;
outIthoPacket.counter += 1;
//get message1 bytes
createMessageStart(&outIthoPacket, &outMessage1);
//get message2 bytes
switch (command)
{
case join:
createMessageJoin(&outIthoPacket, &outMessage2);
break;
case leave:
createMessageLeave(&outIthoPacket, &outMessage2);
//the leave command needs to be transmitted for 1 second according the manual
maxTries = 30;
delaytime = 4;
break;
default:
createMessageCommand(&outIthoPacket, &outMessage2);
break;
}
Serial.print("send\n");
//send messages
for (int i=0;i<maxTries;i++)
{
//message1
initSendMessage1();
sendData(&outMessage1);
delay(4);
//message2
initSendMessage2(outIthoPacket.command);
sendData(&outMessage2);
finishTransfer();
delay(delaytime);
}
}
void IthoCC1101::createMessageStart(IthoPacket *itho, CC1101Packet *packet)
{
packet->length = 19;
//fixed
packet->data[0] = 170;
packet->data[1] = 170;
packet->data[2] = 170;
packet->data[3] = 173;
//??
packet->data[4] = 51;
packet->data[5] = 83;
packet->data[6] = 51;
packet->data[7] = 43;
packet->data[8] = 84;
packet->data[9] = 204; //last bit is part of command
//command
uint8_t *commandBytes = getMessage1CommandBytes(itho->command);
packet->data[9] = packet->data[9] | commandBytes[0]; //only last bit is set
packet->data[10] = commandBytes[1];
packet->data[11] = commandBytes[2];
packet->data[12] = commandBytes[3];
packet->data[13] = commandBytes[4];
packet->data[14] = commandBytes[5];
packet->data[15] = commandBytes[6];
//fixed
packet->data[16] = 170;
packet->data[17] = 171;
//previous command
packet->data[18] = getMessage1Byte18(itho->previous);
}
void IthoCC1101::createMessageCommand(IthoPacket *itho, CC1101Packet *packet)
{
packet->length = 50;
//fixed
packet->data[0] = 170;
packet->data[1] = 170;
packet->data[2] = 170;
packet->data[3] = 170;
packet->data[4] = 170;
packet->data[5] = 170;
packet->data[6] = 170;
packet->data[7] = 171;
packet->data[8] = 254;
packet->data[9] = 0;
packet->data[10] = 179;
packet->data[11] = 42;
packet->data[12] = 171;
packet->data[13] = 42;
packet->data[14] = 149;
packet->data[15] = 154;
//device id
packet->data[16] = itho->deviceId[0];
packet->data[17] = itho->deviceId[1];
packet->data[18] = itho->deviceId[2];
packet->data[19] = itho->deviceId[3];
packet->data[20] = itho->deviceId[4];
packet->data[21] = itho->deviceId[5];
packet->data[22] = itho->deviceId[6];
packet->data[23] = itho->deviceId[7];
//counter bytes
packet->data[24] = calculateMessage2Byte24(itho->counter);
packet->data[25] = calculateMessage2Byte25(itho->counter);
packet->data[26] = calculateMessage2Byte26(itho->counter);
//command
uint8_t *commandBytes = getMessage2CommandBytes(itho->command);
packet->data[26] = packet->data[26] | commandBytes[0];
packet->data[27] = commandBytes[1];
packet->data[28] = commandBytes[2];
packet->data[29] = commandBytes[3];
packet->data[30] = commandBytes[4];
packet->data[31] = commandBytes[5];
packet->data[32] = commandBytes[6];
packet->data[33] = commandBytes[7];
packet->data[34] = commandBytes[8];
packet->data[35] = commandBytes[9];
packet->data[36] = commandBytes[10];
packet->data[37] = commandBytes[11];
packet->data[38] = commandBytes[12];
packet->data[39] = commandBytes[13];
packet->data[40] = commandBytes[14];
//counter bytes
packet->data[41] = calculateMessage2Byte41(itho->counter, itho->command);
packet->data[42] = calculateMessage2Byte42(itho->counter, itho->command);
packet->data[43] = calculateMessage2Byte43(itho->counter, itho->command);
//fixed
packet->data[44] = 172;
packet->data[45] = 170;
packet->data[46] = 170;
packet->data[47] = 170;
packet->data[48] = 170;
packet->data[49] = 170;
}
void IthoCC1101::createMessageJoin(IthoPacket *itho, CC1101Packet *packet)
{
//message3 is an extension on message2
createMessageCommand(itho, packet);
packet->length = 72;
//part of device id??
packet->data[44] = itho->deviceId[3];
packet->data[45] = itho->deviceId[4];
packet->data[46] = itho->deviceId[5];
packet->data[47] = itho->deviceId[6];
packet->data[48] = itho->deviceId[7];
//command join
packet->data[49] = 85;
//fixed
packet->data[50] = 165;
packet->data[51] = 105;
packet->data[52] = 89;
packet->data[53] = 86;
packet->data[54] = 106;
packet->data[55] = 149;
//device id
packet->data[56] = itho->deviceId[0];
packet->data[57] = itho->deviceId[1];
packet->data[58] = itho->deviceId[2];
packet->data[59] = itho->deviceId[3];
packet->data[60] = itho->deviceId[4];
packet->data[61] = itho->deviceId[5];
packet->data[62] = itho->deviceId[6];
packet->data[63] = itho->deviceId[7];
//counter bytes
packet->data[64] = calculateMessage2Byte64(itho->counter);
packet->data[65] = calculateMessage2Byte65(itho->counter);
packet->data[66] = calculateMessage2Byte66(itho->counter);
//fixed
packet->data[67] = 202;
packet->data[68] = 170;
packet->data[69] = 170;
packet->data[70] = 170;
packet->data[71] = 170;
}
void IthoCC1101::createMessageLeave(IthoPacket *itho, CC1101Packet *packet)
{
//message3 is an extension on message2
createMessageCommand(itho, packet);
packet->length = 57;
//part of device id??
packet->data[44] = itho->deviceId[3];
packet->data[45] = itho->deviceId[4];
packet->data[46] = itho->deviceId[5];
packet->data[47] = itho->deviceId[6];
packet->data[48] = itho->deviceId[7];
//counter bytes
packet->data[49] = calculateMessage2Byte49(itho->counter);
packet->data[50] = calculateMessage2Byte50(itho->counter);
packet->data[51] = calculateMessage2Byte51(itho->counter);
//fixed
packet->data[52] = 202;
packet->data[53] = 170;
packet->data[54] = 170;
packet->data[55] = 170;
packet->data[56] = 170;
}
//calculate 0-255 number out of 3 counter bytes
uint8_t IthoCC1101::calculateMessageCounter(uint8_t byte24, uint8_t byte25, uint8_t byte26)
{
uint8_t result;