Writing Efficient C for ARM 基于ARM内核微处理器操作系统的移植 基于ARM的嵌入式开发(PDF ARM中国) ARM+DSP+CPLD开发板 s3c2410(arm9)protel99格式的原理图和PCB图-Writing Efficient C for ARM microprocessor-based ARM core operations transplantation of ARM-based embedded deve

ARM开发板，android系统通过4个RS232（或USB）口同时收发数据。-ARM development board, android system via four RS232 (or USB) port to send and receive data simultaneously.