Hi Ben, thanks for your quick answer. I understand from some connector and signal drawings documents I found at Palm's site that the PDA USB is SLAVE, so as you mention some controller sould be used. The printer I am trying to use is compatible with many other PDAs with OS 5, including Tungsten and Zire 71, but not with Zire 31, so I guess the problem is not a software but a hardware problem with the USB connector.
That?s why I am trying to find the connector signal specification document for Zire 31, to compare and see where the difference is and try to make a custom cable.
The Tungsten T/T2/T3 and Zire 71 devices have a "universal connector" that has both serial and USB slave signals on it. Better matches to the Zire 31 are the Tungsten E, Zire 21, and Zire 72 devices, which all also only has mini-USB. Which printer is it that you're trying to interface with?
-- Ben Combee, Senior Software Engineer, palmOne, Inc. "Combee on Palm OS" weblog: http://palmos.combee.net/ Developer Forum Archives: http://news.palmos.com/read/all_forums/
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