Subject: Garmin Hacking Project Newsgroups: sci.geo.satellite-nav Summary: Keywords: This is a report to show a new code for the GRMN protocol as used by the Garmin GPS45. Progress has been slow becuase of delays and I have been working on details that aren't too interesting. I found this and since I was asked by someone about these codes, then I thought I would send them out. The project is still alive but slow. If your interested in routine reports, send email to me with the subject of "grmn-mailing-list". That way I can keep people informed without lots of low level drivel in the news group. I will still continue to post major reports to the group when I have lots of interesting things to say. Full details of this project can be found at: http://www.abnormal.com/~thogard The new found code reports error messages that are displayed to the user. This seems useful engouh to justify this post. This code is send under some conditions when error messages are sent out. It may require and enable with the "Enable Async" command (0x1x, 0x02). -tim http://www.abnormal.com/~thogard GPS, VW and Usenet topics. ------------------------------------------------- This is an addition to Bill Soleys codes sheet about the Garmin Protocol. The origianal can be found at http://playground.sun.com/pub/soley/garmin.txt RecordType = 0x0d Lenght = 4 DataField = 2 bytes -Event type 0c 00 keyboard events 0f 00 ErrorCode2 10 00 ErrorCode1 2 bytes -Error codes (for 10 00 and 0f 00) 01 00 ... Unknown codes... 28 00 2 bytes -Keyboard codes (for 0c 00) deleted ...