Method begin

src/ModbusMaster.cpp:61–73

Initialize class object. Assigns the Modbus slave ID and serial port. Call once class has been instantiated, typically within setup(). @param slave Modbus slave ID (1..255) @param &serial reference to serial port object (Serial, Serial1, ... Serial3) @ingroup setup */

@ingroup setup
*/
void ModbusMaster::begin(uint8_t slave, Stream &serial)
{
//  txBuffer = (uint16_t*) calloc(ku8MaxBufferSize, sizeof(uint16_t));
  _u8MBSlave = slave;
  _serial = &serial;
  _u8TransmitBufferIndex = 0;
  u16TransmitBufferLength = 0;
  
#if __MODBUSMASTER_DEBUG__
  pinMode(__MODBUSMASTER_DEBUG_PIN_A__, OUTPUT);
  pinMode(__MODBUSMASTER_DEBUG_PIN_B__, OUTPUT);
#endif
}


void ModbusMaster::beginTransmission(uint16_t u16Address)