STM32与FPGA的B码时统解码设计

Design of B Code Time Decoding Based on STM32 and FPGA

针对B码时统解码的精度及硬件使用效率等问题,结合B码原理,从应用角度出发,提出一种新型的B码的解码方案。利用微控制器STM32辅助可编程逻辑器件(FPGA),进行全局解码设计。测试表明,DC码的秒头精度误差控制在ns级,且DC码和AC码解码所提取出的时间信息都非常准确。

For the problems of B coders decoding accuracy and the efficiency of hardware, combined with the B code principle, from the application point of view, this paper put forward a new kind of B code＇s decoding method, using microcontrolter STM32 to assist FPGA with the global decoding design. The experiment shows that the second bead＇s precision error of DC code is in ns level, and the decoding time information of DC and AC code are both very accurate.