Danville Signal Processing dspstak 21262sx User Manual
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Contents
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OverviewDSP-based embedded applications often take the form of a digital signal processing engine coupledwith a specialized data conversion and signal conditioning front end. The front end electronics andthe DSP are almost always connected via high speed serial ports and the general purpose I/O portsof the DSP. In most cases, once the local memory and peripheral interfacing needs of the DSP arefulfilled, the DSP’s data and address busses are no longer needed.Standardized bus architectures such as PC/104, PCI and cPCI are all based on communicating viaeach board’s data and address bus, while ignoring the needs of the most DSP / data conversioninterfaces.Introducing dspstak™Danville’s dspstak modules are designed to simplify DSP-based embedded applications. Generally,each dspstak consists of two modules: a DSP Engine, and a signal conditioning/data conversion I/OModule. The Interconnect Port consists of SPORTs (high speed serial ports), SPI, general I/O, clocksand power connections.DSP Engine modules generally consist of a DSP processor, memory, power supplies and standarddigital I/O such as RS-232 and USB. We currently have products based on Analog Devices’ SHARC®processors.The I/O Modules may include signal conditioning electronics, A/D and/or D/A data converters,audio transceivers, unique connectors and a plethora of other special front end requirements. Sincethe I/O Module is separate from the DSP Engine Module, custom interfaces can be created quicklyand inexpensively. Danville has a number of standard I/O Modules and often is willing to create anew one based on customer request. You can also create your own.dspstak™ 21262sxThis manual covers the dspstak 21262sx DSP Engine and is complemented by the dspstak FamilyUsers Manual. The family manual covers topics that all dspstaks have in common. You will want toreview the family manual for mechanical dimensions, system configurations, basic connectorspecifications, etc.The dspstak 21262sx manual covers topics that are relevant to the specific implementation of thedspstak 21262sx DSP Engine. You will also need the Analog Devices’ ADSP-2126x SHARC DSPCore and Peripheral manuals. These manuals can be downloaded from the Analog Devices website. Links to these manuals and other resources are found on our web site athttp://www.danvillesignal.com/index.php?id=dspdev_linksdspstak™ 21262sx User Manual Page 5 |
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