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Interfacing AD7276 High-Speed Data Converters to ADSP-21262 SHARCŪ Processors (EE-246)    

Analog Devices, Inc.
DSP Division
Three Technology Way
P.O. Box 9106
Norwood, MA 02062

Date Created:	27/9/2004
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Description of the EE-Note:

The application note explains in detail the various schemes to interface high-speed 
data converter AD7276 with ADSP-21262 DSP. The application note also provides example 
code to demonstrate how ADSP-21262 peripherals like SPI and Serial Ports can be 
programmed in order to receive data from AD7276 in core and DMA modes. Power down 
scheme for AD7276 between conversions is also described in the DMA mode of operation. 

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The current directory contains folder "Interfacing SHARC with AD7276" which further
contains folder "2126x" which has two sub folders containg code. 
The sub-folders contained in "2126x" folder are :

1. SPI :  This folder has more folders that contain code for SPI. These various 
folders include code in DMA and core mode with different values of CPHASE.

2. SPORT : This folder contains two more folders which have code for serial port with 
Early_active_high frame sync and Late_active_low frame sync options.

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Visual DSP version : VisualDSP++3.5

The interface has been tested on ADSP-21262 Evaluation board and not on EZ-KIT Lite.

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