基于STM32和 C/OS-II的嵌入式数字示波器设计

基于STM32和 COS-II的嵌入式数字示波器设计

内容简介：提出了一种基于嵌入式技术的嵌入式数字示波器设计方法，硬件设计以STM32为主控核心，采用高性能低噪声的AD8066电压反馈性放大器、压控增益放大器AD603和双路D/A转换器TLV5618A组成程控放大电路，并采用高速带宽A/D转换器和IDT7204高速缓存器组成数字采集电路，以TFT彩屏输出信号波形。软件设计移植开源的实时操作系统 C/OS-II系统，确保了系统的实时性和稳定性。实验结果表明设计思路正确，性能参数达到设计要求。

Abstract：This paper proposes a design method for embedded digital oscilloscope. Its hardware uses STM32 as the controlling core, and it adopts AD8066, AD603 and TLV5618A as the programmable amplifier circuit, uses the high speed A/D device ADS830 and FIFO device IDT7204 as the data sampling and memory circuit. The signal wave is regenerated by applying the arithmetic of digital interpolation. The software uses the C/OS-II platform to realize the multi-duty movement and the real-time processing. The test results show the idea of the design is correct;the performance target satisfies the design requirements.

作者：马超, 高鹏, 杨自芹, 杨秀芹,

关键词：STM32, 数字示波器, 嵌入式, C/OS-II