介紹了一種基于ARM9 和CPLD 架構(gòu)的嵌入式輸入輸出系統(tǒng)的軟硬件設計。系統(tǒng)以工業(yè)
級EP9315 為核心，擴展了LCD、觸摸屏、以太網(wǎng)、串口和USB 等控制接口；以MAX2_EPM240為核心，進行了輸入輸出模塊的設計。該系統(tǒng)成本低、工作穩(wěn)定、通用性強，可在許多場合取代PLC 的I/O 模塊工作。
關鍵詞：嵌入式操作系統(tǒng)；驅(qū)動程序；Windows CE；EP9315；CPLD

Abstract: The software and hardware design of embedded input and output system based
on ARM9 and CPLD was introduced. The system adopted LCD, touch screen, ethernet, serial and USB control interfaces taking the industrial grade EP9315 as the core, and designed input and output model taking MAX2_EPM240 as the core. This system has many advantages such as low-cost, stable running, strong universality, and especially can replace PLC in many industrial fields.
Key words: embedded operating system; driver; Windows CE; EP9315; CPLD