These pages contain a set of resources for introducing Embedded Systems Design for microcontrollers using the C programming language. The material is based around the AVR Studio 5 Integrated Development Environment (IDE) and the Arduino Mega 2560 microcontroller board.
Serial port ‘/dev/tty.usbserial1441′ already in use. Try quiting any programs that may be using it
In essence what needs to be done is the following:
- Open the terminal application
- At the user prompt execute these two lines:
sudo mkdir /var/lock
sudo chmod 777 /var/lock
This will create a directory /var/lock and then changes the default access to it.