在ARM7uc/os上编写的modbus协议，有modus主从协议，用的是LPC22系列芯片。-ARM7uc/os prepared in modbus protocol, the master-slave modus agreement, using a series of chips LPC22.

STM32上移植ucos和modbus master，能够实现主机和从机功能-STM32 on the transplant ucos and modbus master, master and slave functions