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Support multi backend items

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This commit is contained in:
Carl Klemm
2020-05-05 22:20:00 +02:00
parent 14432ae200
commit bcd835aca6
10 changed files with 276 additions and 121 deletions
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98
W433DataTransmitter.cpp Normal file
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#include "W433DataTransmitter.h"
#include "writepin.h"
W433DataTransmitter::W433DataTransmitter(volatile unsigned char *port, const unsigned char pin): _port(port), _pin(pin)
{
}
void W433DataTransmitter::sendBit(const bool bit)
{
switch(bit)
{
case true:
writePin(_port,_pin,true);
_delay_us(SMALL_TIME);
writePin(_port,_pin,false);
_delay_us(LARGE_TIME);
writePin(_port,_pin,true);
_delay_us(SMALL_TIME);
writePin(_port,_pin,false);
_delay_us(LARGE_TIME);
break;
case false:
writePin(_port,_pin,true);
_delay_us(LARGE_TIME);
writePin(_port,_pin,false);
_delay_us(SMALL_TIME);
writePin(_port,_pin,true);
_delay_us(SMALL_TIME);
writePin(_port,_pin,false);
_delay_us(LARGE_TIME);
break;
}
}
void W433DataTransmitter::sendSyncpulse()
{
for(uint8_t i = 0; i < 25; ++i)
{
writePin(_port,_pin,true);
_delay_us(SYNC_TIME);
writePin(_port,_pin,false);
_delay_us(SYNC_TIME);
}
}
void W433DataTransmitter::sendEndPulse()
{
writePin(_port,_pin,false);
_delay_us(LARGE_TIME);
writePin(_port,_pin,true);
_delay_us(LARGE_TIME);
writePin(_port,_pin,false);
_delay_us(LARGE_TIME*10);
}
void W433DataTransmitter::sendRawData(const uint8_t data)
{
for(uint8_t i = 0; i < 8; i++) sendBit(data & ( 1 << (7 - i)));
}
void W433DataTransmitter::sendPacket(const uint32_t data)
{
sendSyncpulse();
_delay_us(LARGE_TIME);
sendRawData(signature);
uint8_t checksum = 0;
for(uint8_t i = 0; i < 4; ++i)
{
uint8_t dataOctet = (data & (0xFF000000 >> i*8 )) >> (24 - 8*i);
//for(uint8_t i = 0; i < 8; i++) checksum = checksum + (dataOctet & ( 1 << (8 - i)));
for(uint8_t i = 0; i < 8; i++) checksum = checksum + ((dataOctet & ( 1 << (8 - i))) >> (8 - i));
sendRawData( dataOctet );
}
sendRawData( checksum );
sendEndPulse();
}
void W433DataTransmitter::send(const uint8_t* const data, uint16_t length)
{
uint16_t packets = length/4;
if(length % 4 != 0) ++packets;
for(uint8_t j = 0; j < packets; j++)
{
uint32_t paketData = 0;
uint8_t* paketDataPointer = reinterpret_cast<uint8_t*>(&paketData);
for(uint8_t i = 0; i < 4 && j*4+i < length; i++) paketDataPointer[3-i] = data[j*4+i];
sendPacket(paketData);
}
}
void W433DataTransmitter::send(const uint8_t data)
{
sendPacket(data);
}