From: Heilpern, M. <mar...@au...> - 2007-05-24 18:28:31
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I've got the subject display and the digikey connector for its flex cable, and I'm about ready to connect it all and see if I can generate some graphics. I'm planning to connect to a Verdex via Breakout-vx, and I'm mostly following the schematic on the wiki from Holly Gates / E-INK. I've got a few questions about this connection plan though... =20 a) ZIF Header pin 18 is attached to GPIO 81 (PXA-255), as a standby signal. This GPIO is one of the NSSP (or SSP, in the case of PXA-270) signals, and I need that port available for other needs. However, looking at the LCD-specific signals, several (L_DD00, L_DD01, L_DD05, etc) are not part of the connection and they are able to be GPIOs. Any reason that would preclude me from using one of these for this signal? (That is... would it cause problems for the LCD controller if I configure one of these outputs as a GPIO since I don't need it for my display?) =20 b) ZIF Header pin 21... what is this used for? Do I need this signal coming into the processor at all? =20 =20 This is my first attempt at attaching a display to the Gumstix, so I'm a bit apprehensive. =20 Thanks, Mark =20 NOTE: The information in this message is intended for the personal and = confidential use of the designated recipient(s) named above. To the extent the = recipient(s) is/are bound by a non-disclosure agreement, or other agreement that contains an = obligation of confidentiality, with AuthenTec, then this message and/or any = attachments shall be considered confidential information and subject to the confidentiality = terms of that agreement. If the reader of this message is not the intended recipient = named above, you are notified that you have received this document in error, and any = review, dissemination, distribution or copying of this message is strictly prohibited. If you = have received this document in error, please delete the original message and notify the = sender immediately. Thank you. AuthenTec, Inc. http://www.authentec.com |