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inital nfc code

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This commit is contained in:
uvos
2022-03-09 10:24:23 +01:00
parent 395c9f3e2c
commit a08c8e447f
13 changed files with 1091 additions and 19 deletions
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64
softspim.cpp Normal file
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#include "softspim.h"
#include "writepin.h"
#include <util/delay.h>
SpiMaster::SpiMaster()
{
}
uint8_t SpiMaster::readWrite(uint8_t in)
{
_delay_us(DELAY_TIME_US);
uint8_t recByte = 0;
for(uint8_t i = 0; i < 8; ++i)
{
if constexpr (BIT_ORDER == 0)
writePin(_port, _pinOut, in & (1 << i));
else
writePin(_port, _pinOut, in & (1 << (7-i)));
if constexpr (CLOCK_PHASE == 0)
_delay_us(DELAY_TIME_US);
writePin(_port, _pinClock, !CLOCK_POLARITY);
if constexpr (CLOCK_PHASE == 1)
_delay_us(DELAY_TIME_US);
if constexpr (BIT_ORDER == 0)
recByte |= readPin(_pinReg, _pinIn) << i;
else
recByte |= readPin(_pinReg, _pinIn) << (7-i);
if constexpr (CLOCK_PHASE == 0)
_delay_us(DELAY_TIME_US);
writePin(_port, _pinClock, CLOCK_POLARITY);
if constexpr (CLOCK_PHASE == 1)
_delay_us(DELAY_TIME_US);
}
return recByte;
}
void SpiMaster::readWrite(uint8_t length, uint8_t* bufferIn, uint8_t* bufferOut)
{
for(uint8_t i = 0; i < length; ++i)
{
uint8_t outByte = 0;
if(bufferOut) outByte = bufferOut[i];
uint8_t inByte = readWrite(outByte);
if(bufferIn) bufferIn[i] = inByte;
}
}
void SpiMaster::prepare()
{
writePin(_port, _pinClock, CLOCK_POLARITY);
}
void SpiMaster::write(uint8_t in)
{
readWrite(in);
}
uint8_t SpiMaster::read()
{
return readWrite();
}