Exemplo n.º 1
0
uint8_t I2C::receiveByte(uint8_t ack)
{
  unsigned long startingTime = millis();
  if(ack)
  {
    TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);

  }
  else
  {
    TWCR = (1<<TWINT) | (1<<TWEN);
  }
  while (!(TWCR & (1<<TWINT)))
  {
    if(!timeOutDelay){continue;}
    if((millis() - startingTime) >= timeOutDelay)
    {
      lockUp();
      return(1);
    }
  }
  if (TWI_STATUS == LOST_ARBTRTN)
  {
    uint8_t bufferedStatus = TWI_STATUS;
    lockUp();
    return(bufferedStatus);
  }
  return(TWI_STATUS); 
}
Exemplo n.º 2
0
uint8_t I2C::sendByte(uint8_t i2cData)
{
  TWDR = i2cData;
  unsigned long startingTime = millis();
  TWCR = (1<<TWINT) | (1<<TWEN);
  while (!(TWCR & (1<<TWINT)))
  {
    if(!timeOutDelay){continue;}
    if((millis() - startingTime) >= timeOutDelay)
    {
      lockUp();
      return(1);
    }
       
  }
  if (TWI_STATUS == MT_DATA_ACK)
  {
    return(0);
  }
  uint8_t bufferedStatus = TWI_STATUS;
  if (TWI_STATUS == MT_DATA_NACK)
  {
    stop();
    return(bufferedStatus);
  }
  else
  {
    lockUp();
    return(bufferedStatus);
  } 
}
Exemplo n.º 3
0
uint8_t I2C::start()
{
  unsigned long startingTime = millis();
  TWCR = (1<<TWINT)|(1<<TWSTA)|(1<<TWEN);
  while (!(TWCR & (1<<TWINT)))
  {
    if(!timeOutDelay){continue;}
    if((millis() - startingTime) >= timeOutDelay)
    {
      lockUp();
      return(1);
    }
       
  }
  if ((TWI_STATUS == START) || (TWI_STATUS == REPEATED_START))
  {
    return(0);
  }
  if (TWI_STATUS == LOST_ARBTRTN)
  {
    uint8_t bufferedStatus = TWI_STATUS;
    lockUp();
    return(bufferedStatus);
  }
  return(TWI_STATUS);
}
Exemplo n.º 4
0
uint8_t I2C::receiveByte(boolean ack)
{
    unsigned long startingTime = millis();
    if(ack)
    {
        TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);

    }
    else
    {
        TWCR = (1<<TWINT) | (1<<TWEN);
    }
    while (!(TWCR & (1<<TWINT)))
    {
        if(!timeOutDelay) {
            continue;
        }
        if((millis() - startingTime) >= timeOutDelay)
        {
            lockUp();
            return(1);
        }

    }
    return(TWI_STATUS);
}
Exemplo n.º 5
0
uint8_t I2C::stop()
{
  unsigned long startingTime = millis();
  TWCR = (1<<TWINT)|(1<<TWEN)| (1<<TWSTO);
  while ((TWCR & (1<<TWSTO)))
  {
    if(!timeOutDelay){continue;}
    if((millis() - startingTime) >= timeOutDelay)
    {
      lockUp();
      return(1);
    }
       
  }
  return(0);
}
Exemplo n.º 6
0
void Field::init(){
    mainWidget = new QGridLayout();
    mainWidget->setHorizontalSpacing(-1);
    mainWidget->setVerticalSpacing(-1);
    this->setLayout(mainWidget);
    cells = new Cell**[COUNT];//указатель на массив ячеек
    for(int i = 0; i < COUNT; i++)
        cells[i] = new Cell*[COUNT];
    for(int i = 0; i < COUNT; i++){
        for(int j = 0; j < COUNT; j++){
            cells[i][j] = new Cell(NULL, image, i, j);
            connect(cells[i][j], SIGNAL(mousePressEvent(Cell*)), this, SLOT(CellClick(Cell*)));
            mainWidget->addWidget(cells[i][j], i, j);
        }
    }
    state = 0;
    lockUp();
}
Exemplo n.º 7
0
uint8_t I2C::sendAddress(uint8_t i2cAddress)
{
  TWDR = i2cAddress;
  unsigned long startingTime = millis();
  TWCR = (1<<TWINT) | (1<<TWEN);
  while (!(TWCR & (1<<TWINT)))
  {
    if(!timeOutDelay){continue;}
    if((millis() - startingTime) >= timeOutDelay)
    {
      lockUp();
      return(1);
    }
       
  }
  if ((TWI_STATUS == MT_SLA_ACK) || (TWI_STATUS == MR_SLA_ACK))
  {
    return(0);
  }
  return(TWI_STATUS);
}