DSP联合CPLD外接AD7606和AD5344的方法与设计

Method and Design of AD7606 and AD5344 Externally Connected with DSP and CPLD

卢军祥 ¹马保慧 ²吴保宁 ¹蔺满强 ¹姚玉玺 ¹陈改霞¹

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作者信息

1. 天水电气传动研究所集团有限公司,甘肃天水 741020;大型电气传动系统与装备技术国家重点实验室,甘肃天水 741020
2. 天水师范学院,甘肃天水 741000
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摘要

TMS320F28335 DSP具有强大的控制及信号处理能力,能够实现复杂的控制算法,在数字电源、变频器等工业控制领域得到了广泛的应用.详细介绍了通过对DSP的XINTF接口地址线和数据线的分时复用,联合CPLD芯片实现DSP与AD7606、AD5344 等外部设备连接,并将CPLD剩余IO引脚拓展给DSP使用的方法和设计,主要解决DSP资源有限而需外接多设备(如AD芯片、DA芯片、数字键盘、SD卡、LCD等)的问题,通过外拓CPLD极大地增强了DSP外接设备的能力、拓宽了DSP的使用范围.

Abstract

TMS320F28335 DSP has powerful control and signal processing capabilities,can realize complex control algorithms,and has been widely used in digital power supply,frequency converter and other industrial control fields.This paper introduces in detail the method and design of connecting DSP with AD7606,AD5344 and other external devices,and extending the remaining IO pins of CPLD to DSP by using the time-sharing multiplexing of XINTF interface address line and data line and combining with CPLD chip.It mainly solves the problem that DSP resources are limited and many external devices(such as AD chip,DA chip,digital keyboard,SD card,LCD,etc.)need to be connected,and greatly enhances the capability of DSP external devices through external CPLD.Broaden the application range of DSP.

关键词

DSP/XINTF/CPLD/AD7606/AD5344/DSP接口拓展

Key words

DSP/XINTF/CPLD/AD7606/AD5344/DSP interface development

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基金项目

甘肃省科技计划项目(21ZD4GA025)

甘肃省教育厅:产业支撑项目(2024CYZC-45)

出版年

2024

电气传动自动化

天水电气传动研究所

电气传动自动化

影响因子：0.2

ISSN：1005-7277

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