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.
维普
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