8.3 串行口设置的C函数.....................................................................................................86 8.4 串行口应用实例..............................................................................................................90 第9章 凌阳音频的C语言程序设计........................................................................................93 9.1 压缩分类和压缩算法....................................................................................................93 9.1.1 凌阳音频压缩算法的编码标准.........................................................................93 9.1.2 压缩分类.............................................................................................................93 9.1.3 凌阳常用的音频形式和压缩算法.....................................................................93 9.2 常用的应用程序接口API的功能介绍及应用...........................................................94 9.2.1 概述.....................................................................................................................94 9.2.2 SACM_A2000.....................................................................................................95 9.2.3 SACM_S480......................................................................................................101 9.2.4 SACM_S240......................................................................................................104 9.2.5 SACM_MS01.....................................................................................................109 9.2.6 SACM_DVR......................................................................................................115 9.3 语音辨识......................................................................................................................118 9.4 本章API函数中所占用的寄存器.............................................................................127 第10章 综合应用实例.............................................................................................................129 10.1 开发背景....................................................................................................................129 10.2 硬件设计....................................................................................................................129 10.2.2 电源部分.........................................................................................................130 10.2.3 音频录入部分.................................................................................................130 10.2.4 键盘部分.........................................................................................................131 10.2.5 外扩存储器部分.............................................................................................132 10.2.6 通信接口部分.................................................................................................133 10.2.7 音频输出部分.................................................................................................134 10.3 软件设计....................................................................................................................134 10.3.1 主程序.............................................................................................................134 10.3.2 硬件系统初始化程序.....................................................................................142 10.3.3 内部FLASH的读写程序..............................................................................143 10.3.4 串行FLASH的读写程序..............................................................................146 10.3.5 UART通讯程序..............................................................................................151 10.3.6 键盘扫描程序.................................................................................................152 10.4 小结............................................................................................................................152 |
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