传统使用 PC 机现场对励磁系统进行录波，调试正常后一般就不再进行后续录波，对于后期事故的排除及产品的更新都不利。介绍了一种采用基于 ARM Cortex M3 内核的 STM32 微控制器与 SD 半导体快速闪记忆器（SD卡）的微机录波存储器的设计方法。并从硬件和软件两方面具体论述了该存储器的实现。该系统实现了自动对励磁系统的数据进行快速采集、分析和存储的长时间录波。

The PC to carry on recording and memory is used for the excitation system records in tradition methods, and after debugged in good order, the following records are no longer carried on , it is disadvantage to the later accident elimination and the product renewal. This system can conduct the recording automatically ， gathering, analysis and memory . This article elaborates this memory ' s realization from both hardware and software designs. The system enables automatically rapid collection, analysis and storage of excitation system data in long time.