Monday, January 16, 2017
Publication Date: 06/1/2007
Archive >  June 2007 Issue >  Contract Mfg. Products > 

Goepel Boundary Scan Module Used in Aerospace Testing
SCANFLEX test interface module.
Austin, TX — GOEPEL electronic and the German Aerospace Center DLR-RM (Deutsches Zentrum fuer Luft-und Raumfahrt, Institut fuer Robotik und Mechatronik) have developed the first applications using the new VarioCore technology to test aerospace hardware. The solution is based on the innovative JTAG/Boundary Scan hardware platform SCANFLEX®, utilizing VarioCore modules as a reconfigurable interface for the flexible testing of the electronic peripherals of Space Robots.

At the DLR Institute of Robotics and Mechatronics a docking tool for sensor-guided satellite capturing has been developed. The docking tool, attached to a servicing satellite, supports the autonomous docking of telecommunication satellites that are in geosynchronous orbit. Several docking tool sensors ensure the collision-free insertion into the apogee motor nozzle of the client satellite, prior to the final docking. These sensors have to undergo all the prescribed environmental tests such as vibration and thermal/vacuum, before the system can be launched into space.

The DLR project utilizes VarioCore for both the dynamic verification of sensors and the stimulation of sensor interfaces as independent IEEE1149.1 test runs. The sole hardware test platform is a SCANFLEX JTAG/Boundary Scan controller SFX/USL1149-B using a USB/LAN interface for TCK frequencies up to 50MHz, connected with a SCANFLEX TAP Transceiver SFX-TAP2 and a SCANFLEX I/O module SFX5350. After executing traditional Boundary Scan test and programming, SFX5350 is reconfigured "on the fly" with specific VarioCore-IPs, to be used as either a multi-channel frequency generator or frequency counter — all performed in a fraction of a second. Other external instruments are no longer required, which decreases the wiring efforts considerably.

The entire test and reconfiguration run is controlled by the JTAG/Boundary Scan software package CASCON GALAXY takes just a few seconds to perform. By using VarioCore technology, the SFX5350 is reconfigurable for other projects with specific I/O functionality, running up to 125MHz. This flexibility does not only protect investment, but increases fault coverage, while significantly minimizing test efforts.

For more information, contact: Goepel electronics LLC, 9600 Great Hills Trail, Suite 150W, Austin, TX 78759 512-502-3010 fax: 512-343-3076 E-mail: Web:

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