Method writeByte

src/SPIFram.cpp:334–373

Writes a byte of data to a specific location in a page. Takes three arguments - 1. _addr --> Any address - from 0 to capacity 2. data --> One byte to be written to a particular location on a page 3. errorCheck --> Turned on by default. Checks for writing errors WARNING: You can only write to previously erased memory locations (see datasheet). Use the eraseSector()/eraseBlock32K/eraseBlock64K comma

// WARNING: You can only write to previously erased memory locations (see datasheet).
// Use the eraseSector()/eraseBlock32K/eraseBlock64K commands to first clear memory (write 0xFFs)
bool SPIFram::writeByte(uint32_t _addr, uint8_t data, bool errorCheck) {
  //return _write(_addr, data, sizeof(data), errorCheck, _BYTE_);
  #ifdef RUNDIAGNOSTIC
    _spifuncruntime = micros();
  #endif
  if(_isChipPoweredDown() || !_addressCheck(_addr, sizeof(data)) || !_notPrevWritten(_addr, sizeof(data)) || !_writeEnable()) {
    return false;
  }

  _beginSPI(PAGEPROG);
  _nextByte(WRITE, data);
  CHIP_DESELECT

  if (!errorCheck) {
    _endSPI();
    #ifdef RUNDIAGNOSTIC
      _spifuncruntime = micros() - _spifuncruntime;
    #endif
    return true;
  }
  else {
    _currentAddress = _addr;
    CHIP_SELECT
    _nextByte(WRITE, READDATA);
    _transferAddress();
    if (data != _nextByte(READ)) {
      _endSPI();
      #ifdef RUNDIAGNOSTIC
        _spifuncruntime = micros() - _spifuncruntime;
      #endif
      return false;
    }
    else {
      _endSPI();
      #ifdef RUNDIAGNOSTIC
        _spifuncruntime = micros() - _spifuncruntime;
      #endif
      return true;
    }
  }
  return true;
}