Daqarta v1.14 with DT2821 driver, Y2Kure (Bob Masta )

Subject: Daqarta v1.14 with DT2821 driver, Y2Kure
From:    Bob Masta  <masta(at)daqarta.com>
Date:    Tue, 23 Feb 1999 10:36:37 +0000

Last summer, participants of this list inquired about Daqarta support for Data Translation products. I am pleased to announce that a driver for the DT2821 family is now available for download, as is the latest version of Daqarta (v1.14). This DT2821 driver greatly extends the capabilities of the boards compared to other systems. To the best of my knowledge, Daqarta is the only system that offers simultaneous high-speed acquisition and signal generation with the DT2821 family... Data Translation says these boards can only do one thing at at time. What's more, Daqarta can generate signals at sample rates that greatly exceed the acquisition rate limits, using a technique I call "hypersampling". For example, Data translation specs the DT2821 at 50 kHz for the ADC and 130 kHz for the DACs. These numbers are conservative: With a DT2821 generously loaned by Dave Moody for testing, the upper limit of the ADC was found to be nearly 80 kHz, and the DACs went to 200 kHz. Yet Daqarta can run the ADC at 50 kHz while synchronously generating independent tone bursts at 200 kHz on each of the DACs... an "aggregate" of 450 kHz, all on a lowly 386DX-40 system. Continuous acquisition / generation is more system-speed dependent: A 200MMX Pentium could only manage 100 kHz output rates with a 50 kHz input rate. (Your mileage may vary.) This single driver can be configured for any model in the DT2821 family: DT2821 -F-16SE -F-8DI -G-16SE -G-8DI DT2823 DT2824-PGH DT2824-PGL DT2825 DT2827 DT2828 DT2829 DT21-EZ DT23-EZ DT24-EZ DT24-EZ-PGL However, only the DT2821 model was available for test. I would greatly appreciate reports from users of other models, and would be glad to offer assistance where needed. And by the way, you can also download Y2KURE from the Daqarta site. This tiny CONFIG.SYS utility will cure the Year 2000 problems of absolutely any BIOS, even those that are supposedly "incurable". No tests needed; you just "set it and forget it", and your system will have the correct date through 2099. Comments and questions are always welcome. Bob Masta tech(at)daqarta.com D A Q A R T A Data AcQuisition And Real-Time Analysis Shareware from Interstellar Research http://www.daqarta.com

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