【摘要】 介绍基于新型高性能DSP芯片TMS320F2812和嵌入式操作系统μC/OS-Ⅱ的电压频率控制装置的设计。为提高采样精度,外接一片16位的A/D转换芯片ADS8364及采样保持器LF398进行同时采样保持,并通过多路开关AD7501来实现分时传送。实现多通道同步交流采样的硬件电路及嵌入式实时多任务软件程序的设计。该方案是对现行同类装置的升级和完善,提高了系统运行的可靠性。更多还原

【Abstract】 This paper introduces the design of control device of voltage and frequency based on the new chip of DSP TMS320F2812 with high performance and embedded operating system μC/OS-Ⅱ.To improve sampling accuracy,the device bootloads one A/D conversion chip ADS8364 with 16 bits and sample-and—hold circuit LF398 to sample-and-hold,and uses multi-output switch AD7501 to transmit separately.It realizes the hardware circuit design of multi—channel synchronous AC sampling and the design of embedded real-time multi-task software program.This project improves the reliability of system operation.It upgrades and improves the existing congeneric facilities.更多还原