本系统具有硬件投入少、组织简便及操作灵活等特点。
This system has following features:little cost of hardware, simple organization and flexible operation.
单片机应用技术所涉及到的实验实践环节比较多，而且硬件投入比较大。
The application technology of MCU involved many experiment aspects and the hardware investment is relatively large.
特别是在不增加硬件投入的情况下，如何通过软件方法提高性能，对同行有一定借鉴意义。
Especially, it is very useful and valuable that you can improve the performance by software methods without any new hardware.
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