作　　者： ; (代文化）;

机构地区： 创维集团海外发展有限公司广东省深圳市518106

出　　处： 《信息化研究》 2009年第8期40-43,共4页

摘　　要： SM9613是3对输入4声道输出的数字音频控制处理芯片,芯片内部包含音量、低音、高音、通道均衡、前/后级衰减和响度处理;广泛应用于汽车音响系统和Hi-Fi音响系统。文中介绍了AT89C51单片机与SM9613进行通信的方法。编程时预先把控制数据做成表格,储存于程序区。然后用查表的方法检出衰减数据,用模拟的I2C接口对SM9613进行控制。由于采用查表法,所以程序比较简洁,可读性好。此程序已应用于多款机器,运行稳定,效果良好。 SM9613 is a digital audio-control processing chip with 3 pairs of input and 4 output channels. Widely used in car and Hi-Fi audio systems, the chip contains such functions as internal volume, bass, treble, channel equalization control, and pre/post attenuation and loudness processing. In this paper,we introduce a method of singlechip AT89C51 communication with SM9613. When programming the control data, it will be made into a table and saved in program zone. The I^2C interface is used to communicate with SM9613 while the meter-reading method is used for reading attenuation data so as to control SM9613. Because of using meter-reading method, the program is simple and has good readability. This program has been applied to many devices, which are running stably and have good effect.

关 键 词： 音响系统 汇编语言

领　　域： [电子电信] [电子电信]