基于MSP430单片机的FED点阵汉字显示软件设计

Software design of FED Dot-matrix Chinese-character display based on MSP430

本设计旨在有效推动场致发射显示器(FED)产品化与市场化。采用MSP-EXP430G2单片机作为FED的驱动芯片,用TCA6416A芯片对单片机引脚进行扩展,将串行数据转换为16位的并行数据作为点阵显示电路的行驱动,再用译码器对I/O口编码,从而选定FED点阵的列数用于列驱动,最后成功的实现了16×16的FED点阵字符的动态显示。将一次完整扫描时间控制在20ms以下,且每行扫描持续时间设置为100μm,可以得到稳定的FED场致发射显示器点阵汉字显示电路,为场致发射显示器的软件设计提供了新的解决方法。

This design aims to effectively promote the field emission display(FED)product and market.Using the MCU MSP-EXP430 G2 as the FED’s driver chip,using TCA6416 A chip microcontroller pins extend,converts serial data to a 16-bit parallel data as line drive of dot matrix display circuit,reoccupy decoder for I/O mouth coding,which is used for the column number of the selected FED dot matrix column driver,finally succeeded in the implementation of 16 × 16 FED lattice dynamic display of the characters. By controlling a complete scan time below 20 ms and setting the duration of each line scan to100 μm,a stable Chinese character display circuit of FED field emission display can be obtained,which provides a new solution for software design of field emission display.