一种基于FPGA的PCM检查器的实现

The implement of PCM checker based on FPGA

针对飞机现有的脉冲编码调制(PCM)数据流检查器成本高,使用不便等特点,基于现场可编程门阵列(FPGA)设计及软件开发,研制了一种新型的通过USB2.0端口对设备输出进行PCM检查,同时还可以实现实时检查、记录、实现图形化显示的新一代PCM数据流检查器。详细介绍了其硬件电路设计及上位机软件的实现流程。通过对大量PCM前端设备的数据检查及解析,并未发现错误与异常。表明了此种PCM数据流检查器具有方便易用、可靠性高等特点。

For the current of high cost and inconvenience of pulse code modulation（PCM）data checker,develop a new type device of PCM data stream Checkers which output through the USB2.0 port and can achieve real- time checks records and implement a graphical display based on FPGA and software.Details of the hardware circuit design and PC software implementation process. There are no errors and exceptions Through check a large number of PCM front-end equipment. It shows that the PCM data flow checker has the characteristics of convenience and high reliability.