计算嵌入式目标程序*.ELF文件的crc动态库及工具源码，开发环境vc++6.0及delphi7.0-this program can calculate embeded target program (*.elf) s crc,developed with visual c++ and delphi.

Delphi的MSCOMM实现上位机与PLC间的串行通信(附源程序-Delphi' s MSCOMM serial communication between PC and PLC (with source code