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I've been using a UniROM, from TechTools pretty steadily for about the last few years, and it's been an outstanding product. I've used it to emulate everything from an 8Kx8 EPROM to a 2MBit FLASH, and it's performed nearly flawlessly.

The UniROM is more than a simple EPROM emulator -- it also comes with a program that lets you change view live memory, and change locations on the fly. I haven't used this a great deal, but it can be a powerful debugging aid.

Another unique feature of the UniROM is it's support for a "virtual UART". If you can afford to give up a half-dozen or so bytes of code space, the UniROM will emulate a UART, giving you an extra RS-232 port that you can use for debugging or for a monitor. Again, I haven't used this feature as much as I'd like to, but I almost certainly will at some point; it just has too much potential to ignore.

Another thing that impressed me about TechTools is that when they released an updated version of the UniROM last year, they performed a hardware upgrade for free -- all it cost me was shipping. And the upgrade was more than cosmetic -- the download speed was greatly improved. I can now download a substantial program in just a few seconds.

In addition to the ROM emulator itself, the UniROM comes with both serial (RS-232) and parallel (printer port) cables, the memory viewer/editor program mentioned above, a batchable downloader, and some useful utilities. Documentation is well-done, and support (the little I have needed it) has been solid.

Bottom Line: Highly Recommended!

Contact Info:
TechTools
P.O. Box 462101
Garland, TX 75046
Phone: 214-272-9392
Fax: 214-494-5814
Email: sales@tech-tools.com
WWW: http://www.tech-tools.com

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