Brief introduction of automatic test platform of TekExpress conformance
The steady promotion of the serial data rate, require rigorous standard and more advanced conformance testing solution. This needs test and sensing device of big amplitude enhancement of the characteristic to support the test in respects such as transmitting set, receiver and signal channel,etc.. In order to meet this kind of demand, it not only require whether whether it is extensive,it last complete one, extensible, can meeting at present and it is conformance testing software platforms automatic of demand future. The instrument of Tyke and TekExpress put out newly? The automatic all right single bond of test platform of conformance carries on the standard measure of the high-speed serial data automatically, have fully met this demand. This was too specially designed for testing SATA.
A greater challenge that the designer faces is to carry on the conformance testing of the standard. The new-standard requires many instruments of simultaneous control and is examined the apparatus the most; The pressure of market of production efficiency and complicated measurement quantity of the requirement are increased rapidly: Demand to carry on up to 150 test in SATA Gen-2, this means automation and repeated measurement become inevitable. With canonial continual renovation, designers can increase and revise test procedure and parameter simply and conveniently rapidly. In addition, also need numerous test to combine many test of instrument with result.
TekExpress has offered all required key elements of test platform of conformance, including patterned user interface, controlling program library, automatic script, report producing, instrument automatic recognition and database administration of the test result of conformance testing. Tyke chooses TestStand test of National Instruments to manage the environmental implementation under test, because it has abundant sequencing support, can be with a lot of different design environment of interface. TestStand still gets support from bulky development colony, allows the customer on TekExpress platform to expand one's own solution, meet the particular need. Control the program library to support ICP (the instrument control agent) , SCP (solution controls the agent) And ACP (analyze that controls the agent) .
TekExpress the intersection of conformance and automatic test platform the key component is used for the particular canonial automatic testing software most, such as SATA Gen-1 and SATA Gen-2. The new TekExpress SATA automatic conformance testing software is controlled from Windows XP computer through ocular user interface, coordinate setting up and control sequence, offer the intact authentication test result high-efficiently rapidly. In TekExpress SATA, can finish all four SATA-IO approved implement methods (MOI) ,Hour of less than 3 of total testing time, make the testing time of conformance shorten by about 70%.
No matter connect through LAN, GPIB or USB, this software is automatic (or on-demand) Scan and measure the instrument that supports. Besides instrument of Tyke, it also supports RF Switch and Crescent Heart software (CHS) of Keithley in initial stage By mistake frame counter. (TekVISA? It is a kind of mark that mixes the software function, allows to use the control instrument of application software running on the instrument, or couple from the external PC work station to instrument and operate the control instrument of the application software through the network. . The application software includes LabView, Microsoft Excel, C, TekExpress, TestStand,etc..
Set up test plan and the intersection of suitable connection and DUT, user need according to " run (Run) only " The button, can carry out the test kit chosen. It is through helping menus to offer on-line help, users can visit and consult information directly, such as structure chart and TekExpress SATA approved SATA MOI attached. Engineer and testing technicians can find out about measurement principle, understand the test result better.
After finishing in testing, it can obtain by HTML the test results of the editions user and through /state of failing and last card. Then can submit this piece, score Carlos, test the organization carries on formal conformance authentication at the conformance testing meeting. 100% of the Pass The Test of mark on the card that once score, then the bottom layer DUT can be deemed to meet the norm.
To the verification of the apparatus, the engineer will usually use different working conditions to test several wheel single apparatuses, such as different temperatures and mains voltage. This is called four corners to test (tests low temperature - high temperature and undervoltage - high pressure) sometimes . To test of four corners, the driver program that NI supported the extensive temperature cabin and the power used, can use NI TestStand control temperature cabin, then transfer the command set and control API on the automatic test platform of TekExpress conformance, carry on the conformance testing. In order to regulate the mains voltage, can use the standard NI TestStand array file, revise the power control sequence within TekExpress. This is especially suitable for already using the company that TestStand carried on automatic test, allow to test the engineer tests the script using conformance of Tyke in testing arrays directly.
Through putting out the automatic test platform of TekExpress conformance and releasing and selecting as SATA made-to-order TekExpress SATA automatic conformance testing software, Tyke has extended its leading position and professional experience in testing seriallying at a high speed. The automatic test platform of TekExpress conformance has established the foundation for the future canonial automatic conformance testing solution of high-speed serial data.