基于ADμC842的在系统可编程数据采集电路设计

Design of ADμC842-based In-system Programming Data Acquisition Circuit

基于单片机芯片ADμC842,设计了一种具有在系统可编程能力的数据采集电路,该数据采集电路采用ADμC842的片内A/D和D/A转换器,减小了电路体积,同时应用这种芯片的在系统可编程能力不仅可以方便地在应用现场对系统进行升级,而且在设计调试阶段不需要专用硬件开发设备和编程设备的支持。

This paper give an account of ADμC842-based circuit for data acquisition, with in-system programming ability. The A/D and D/A converter of ADμC842 is fitted to reduce the bulk of the circuit. Because of its in-system programming ability, field updating program of system is made more convenient, and no special hardware development equipment and programming equipment are needed for support.