基于AD2S82A的多通道测角系统及与DSP接口设计

Multi Channel Angle Measuring System Based on AD2S82A and DSP Interface Circuit Design

利用轴角-数字转换芯片AD2S82A和旋转变压器,可以组成高精度的多通道测角系统。介绍了这种测角系统的组成和工作原理,着重研究了它与DSP处理器的接口问题,并利用三态锁存器和单脉冲触发芯片,设计给出了一种适用于多通道系统的高速接口电路,解决了DSP一次读取多片AD2S82A所造成的大量时间延迟问题。

Using the resolver-to-digital converter AD2S82A, designed a multi channel angle measuring system. The paper introduced the principled of this angel measuring system first, then discussed the interface circuit between AD2S82A and DSP controller in detail. At last, given a multi channel and high speed interface circuit which is composed of 3-state latches and monostable muhivibratores.