Product Application

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Rev.1.1
1. Introduction
This paper describes Demo Application for Revelation Board. Demo Application show basic
functionality of FT800 and FT801 chips. Thanks to the application user can learn how to prepare his
own application using FT80x or FT81x chips and STM32F0 microcontroller in fast way. Riverdi prepared
two version of Demo application: one for 3.5” and 4.3” displays and the second for 7.0” models. Both
Demo applications consist of 6 sub-applications. Each of sub-applications is designed for different
touch panel (resistive – RTP, capacitive – CTP). Demo Application were prepared in CooCox IDE using
libraries provided by FTDI, and modified by Riverdi. To start programming, first at all, you must connect
Revelation Board to the TFT display via 20 pin 0.5 mm FFC to CN8, MCU programmer to SWD connector
(for example ST-LINK) and also the 5V power supply via micro USB connector. Figure 1 shows LCM
(Liquid Crystal Module) connected to the Revelation Board and ST-LINK. For more information see
Revelation Board datasheet.
Figure 1. Demo application connection
2. Basic functionality
This section provides basic information about usage of FT80x (FT800, Ft801) and FT81x(FT812, FT813)
chips connected to Revelation Board. All demo details you can find in demo application source code.
Demo shows only few available functions of FT80x and FT81x chips. For more functions see
FT80x/FT81x datasheet.
2.1 Display initialization
Pressing SW1 switch you can chose one of 6 sub-applications. It is important to set appropriate
parameters for connected display. FT81x chips use other library than FT80x controller. Below you can
see parameters for 4.3” CTP display with FT801 and for 7.0” CTP display with FT813.