基于ARM2131实现的modbus从站程序设计，改可以实现简单部功能的modbus协议的实现。提供参考。-Based on the achievement ARM2131 the Modbus Slave program design, change can be achieved a simple function of the Modbus protocol to achieve. Provide a reference.

ARM 2131的demo板源代码，可以参考一下，-ARM 2131 the source code of the demo board, you can refer to,

ARM2131的硬件电路设计说明，适合新手上路学习-ARM2131 descr iption of the hardware circuit design, suitable for novice to learn the road