彩色STN模块VP2188与51单片机的接口设计与软件编程

INTERFACE CIRCUIT FOR COLOR STN MODULE VP2188 AND ITS PROGRAM TO 51SCM

介绍了精电蓬元彩色STN液晶模块VP2188及其核心控制器PCF8837的特点,分析了PCF8837的电压生成、内存管理、寻址方式、温度补偿、局部显示模式原理以及液晶模块VP2188在亮度调节、对比度调节、图像旋转、能耗等方面的特点,从液晶模块与51系列单片机的多种接口方式中选择了常用的8位模式组成电路,并在PCF8837的两种指令系统中选择出其中的一种,讨论了数据传输的3种格式要求,着重说明了OPT编程和初始化过程中应注意的问题,编写了实际中经常用到的一些程序,这些程序已在Keil u Vision3编译器中顺利编译通过.

The character of color STN liquid crystal module VP2188 and its core controller was introduced. And the voltage generation, memory management, addressing method, temperature compensation, local display principium of PCF8837 were emphasized. The brightness adjustment, contrast regulation, image rotation, less electricity consumer were shown. Then we had introduced the interface method of liquid crystal module and 51 series SCM, and built up circuit with the eight digit in common use. One of the PCF8837 repertoire was selected, and the three format request were discussed in the data transmission. The attentive problems in the processing of OPT programme and initialization were illuminated in emphases. In the end, we compiled some formality used at every turn, and they got across in the Keil uVision3 translation implement.