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本文提出了一种基于微功耗技术的汉语组拼嵌入式系统设计方案。该系统采用微功耗处理器作为控制中心,并用专用的语音芯片来处理语音素材。方案对语音素材进行整理、编码、烧录后,通过判断当前键盘的输入,来寻址选择当前需要读取的语音数据,再将读取的语音数据直接输出给数模转换,由于转换的模拟信号仍然比较小,不足以驱动喇叭,输出之前再进行音频功率放大。
In this paper, we propose a design scheme of embedded Chinese system based on micro-power technology. The system uses micro-power processor as the control center, and use a dedicated voice chip to deal with voice material. The program organizes, encodes and records the voice material and then locates and selects the voice data to be read currently by judging the input of the current keyboard, and then outputs the read voice data to the digital-to-analog conversion directly. Due to the conversion simulation The signal is still relatively small, not enough to drive speakers, audio power amplifier before the output.