LCD textový terminál

Abstract

In the theoretical part of this master thesis are descripted terminals standards, terminal communication methods, interfaces descriptions (RS232, RS485, RS422), their principles and the way of data transmission. There are detail description of USB bus, principles of device recognition and data transmission on the bus. In next part of thesis are described MCU configuration and work of LCD modules - individual modes, initialisation, writing characters on the LCD. There are stated properties of modules, which are needed to know for development of LCD text terminal which comunicates via the USB bus. In the practical part of this master thesis are realized options of device design, and also the independent device development.