基于TMS320C6713的激光陀螺数据采集电路设计

Design of data acquisition circuit of laser gyro based on DSP

介绍了基于TMS320C6713和EP1C3T144C8设计的激光陀螺数据采集电路,以DSP为处理核心,利用FPGA芯片采集激光陀螺输出的的方波信号,编码后送至处理器并实现低通滤波,再通过FPGA将数据输出至上位机。在FPGA和DSP之间的数据传输使用异步FIFO结构,避免了因突发情况而丢失部分数据。根据FPGA发送的帧格式编写了相应的上位机软件。实际应用表明,该采集电路结构简单,稳定性好,能够满足日常激光陀螺测试的需要。

Design of data acquisition circuit of laser gyro based on TMS320C6713 and EP1C3T144C8 isintroduced, taking DSP as the core of operation, the square wave produced by a laser gyro is sent toFPGA and coded, the data from FPGA are processed with a low-pass filter in DSP and sent to hostcomputer by FPGA. Data transfer between the FPGA and DSP using asynchronous FIFO structure, toavoid the situation due to sudden loss of some data. The preparation of the corresponding PC softwareaccording to the data frame transmitted by FPGA.The practical application shows that the design of theacquisition circuit has simple structure and high stability, and can meet the daily test of laser gyros.