ts-7000
[Top] [All Lists]

[ts-7000] trouble with RTC on 7800

To:
Subject: [ts-7000] trouble with RTC on 7800
From: "John Shaffer, PhD" <>
Date: Sun, 13 Jan 2008 16:13:02 -0600
I'm having similar trouble with the real-time-clock as some other posts but the suggestions there did not fix the problem.  I did indeed order the 7800 with the RTC option. I'm guessing its the black component labeled 23676 on the board. I see no battery and thus assume its inside that box.  I also downloaded the updated rtc7800 utility and used that version ( md5 sig: 9f8c7d100956fc649d5acfe6653ccff3 )

Symptoms:
  • rtc7800 (with or without -s option) returns with Register A was: 20
  • hwclock --show returns The Hardware Clock registers contain values that are either invalid (e.g. 50th day of month) or beyond the range we can handle (e.g. Year 2095).
  • The above happens even after ==># rtc7800 -s  -- Seems like rtc7800 has no effect...ever
  • ntpdate ntp.server.wherever works and sets time properly (tzselect works as well)
  • a subsequent call to ntpdate after 1 minute shows a correction of about 2 seconds.  Yes, 2 s for every minute of wall clock time.
  • hwclock --systohc seems to have no effect -- same as rtc7800
  •  Contents of /etc/adjtime (if its useful);-0.152558 1200190483 0.000000
    1200190483
    UTC
  • old /usr/local/bin/rtc7800 (has md5sum: c3ca375b3c8d7c852fd99fcd16b97bfb -- sarge install) behaves ame as the new one
It behaves as if there is no RTC on board. However, the utility does not complain of "no RTC found", seems it finds it OK (see Reg A retval). Its almost as if the RTC is just plain broken.

Anyone have any similar experiences with the RTC on 7800 or can point me to something I may have missed?

Thanks,
John



--

John H Shaffer PhD
Managing Partner

507-252-8927
m("lakotainnovations.com","jshaffer");">

Lakota Innovations LLC
2015 Valkyrie Dr NW
Rochester, MN 55901

__._,_.___

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: =Email Delivery: Digest | m("yahoogroups.com?subject","ts-7000-fullfeatured");=Change Delivery Format: Fully Featured">Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | =Unsubscribe

__,_._,___
<Prev in Thread] Current Thread [Next in Thread>
Admin

Disclaimer: Neither Andrew Taylor nor the University of NSW School of Computer and Engineering take any responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU