command line interface

Description: This setup enables the allocation of pins on an mbed for a specified interface without the need to recompile the code. It utilizes a PS/2 keyboard as an input device and an LCD as an output device. The system can accept commands and interpret them based on predefined rules to assign or reassign different pins for various interfaces.

The described setup consists of an mbed microcontroller, a PS/2 keyboard, and an LCD display, forming a flexible interface management system. The mbed microcontroller serves as the central processing unit, executing the commands received from the keyboard and managing the output to the LCD.

The PS/2 keyboard is connected to the mbed via a specific set of pins configured to handle serial communication. The keyboard sends keystrokes as encoded signals, which the mbed interprets using a dedicated library that handles the PS/2 protocol. This allows users to input commands that dictate how the mbed should allocate its pins.

The LCD, which is typically interfaced using either a parallel or serial communication method, displays feedback and status messages to the user. This visual output is crucial for user interaction, providing real-time information about the current pin assignments and any changes made through keyboard commands.

The core functionality of the system revolves around a command parser that interprets user inputs according to a predefined set of rules. These rules dictate how commands are structured and how they correspond to specific actions, such as assigning a pin to a particular function or reassigning it. The flexibility of this setup allows users to dynamically change the configuration of the mbed without the cumbersome process of recompiling and uploading new code, significantly enhancing development efficiency.

To implement this system, the mbed's GPIO (General Purpose Input/Output) pins are initially configured to a default state. As commands are issued through the PS/2 keyboard, the command parser updates the pin configurations in real-time, ensuring that the mbed's functionalities can be adapted to various applications, from simple input/output tasks to more complex interfacing with sensors and actuators.

Overall, this setup exemplifies an efficient and user-friendly approach to managing microcontroller pin assignments, suitable for rapid prototyping and development in embedded systems.This setup allows you to allocate the pins of an mbed for a specified interface without having to recompile the code. It uses a PS/2 Keyboard as an input device and an LCD as an output device. It can take commands and interpret them according to predefined rules in order to assign/reassign different pins for different interfaces.