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介绍了一种基于TDD方式的高语音清晰度、高移动性的无中心数字无线语音传输系统,为了实现高性能,选择CC1101射频收发作为主芯片,以MSP430F149(MCU)为控制芯片,可以体现控制芯片的低功耗特点,以及选择AMBE-1000(国产)语音编解码芯片进行语音处理,则可以较小的语音数据量来实现清晰语音,从而有效的节省传输带宽,其他芯片则是良好的辅助。在通信协议的设计中引入了非对称的帧格式设计,从而与射频模块匹配,在编程架构设计上运用了层次化与模块化相结合的编程方法加快软件的开发速度。文中详细介绍了系统的设计方案及各芯片选型,MCU软件设计调试,以及硬件设计与调试要点。
In this paper, we introduce a TDD-based high-definition, high-mobility wireless digital voiceless transmission system. In order to achieve high performance, CC1101 RF transceiver is selected as the main chip and MSP430F149 (MCU) as the control chip. Chip low-power characteristics, as well as the choice of AMBE-1000 (domestic) voice codec chip for voice processing, you can voice a small amount of data to achieve a clear voice, which effectively save the transmission bandwidth, and other chips is a good helper . Asymmetric frame format design was introduced in the design of communication protocol to match the RF module. The programming architecture was designed by using the combination of hierarchical and modular programming to speed up the software development. The paper details the design of the system and the chip selection, MCU software design and debugging, as well as hardware design and debugging points.