From: Pat W. <okh...@gm...> - 2007-07-12 04:32:17
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All, Would it be safe to assume that the Verdex has a real time clock onboard, but as with the Connex and Basix boards, there is no battery back up for it? So..as with the other boards, turn it off and the date resets back to the epoch? This leads me to wonder, if using a Verdex board and a breakout-vx together, since the breakout-vx has a battery connector, could that be used as a battery for the real time clock or is it only (I would assume) for battery power for the system itself? Just wondering if I would still need to use an external ds1307 RTC from sparkfun.com if I migrated to the Verdex platform. Thanks.. --Pat |
From: Craig H. <cr...@gu...> - 2007-07-12 17:14:19
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On Jul 11, 2007, at 9:32 PM, Pat Winn wrote: > All, > Would it be safe to assume that the Verdex has a real time clock > onboard, but > as with the Connex and Basix boards, there is no battery back up > for it? > So..as with the other boards, turn it off and the date resets back > to the epoch? One change on the verdex vs basic/connex is that we now expose on the new 24-pin connector a backup-battery connection which can be used to power the RTC while the verdex is "off". To understand how to use this, refer to the docs for the TPS65020 PMIC which we use on the verdex. > This leads me to wonder, if using a Verdex board and a breakout-vx > together, > since the breakout-vx has a battery connector, could that be used > as a battery > for the real time clock or is it only (I would assume) for battery > power for the > system itself? That's for the system itself. You need to attached to the specially designated pins on the 24-pin to power the RTC independently of the rest of the system. > Just wondering if I would still need to use an external ds1307 RTC > from sparkfun.com > if I migrated to the Verdex platform. No; you shouldn't. It might be easier to use though -- you might need to modify stuff in the bootloader and/or kernel to get the on- SoC RTC stuff working right. C |
From: Pat W. <okh...@gm...> - 2007-07-12 17:23:21
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Thanks Craig, sounds good. :-) Has anyone tried doing this as yet? If so, I'd be interested in hearing what all you had to do to get it working. --Pat On 7/12/07, Craig Hughes <cr...@gu...> wrote: > > On Jul 11, 2007, at 9:32 PM, Pat Winn wrote: > > All, > Would it be safe to assume that the Verdex has a real time clock onboard, > but > as with the Connex and Basix boards, there is no battery back up for it? > So..as with the other boards, turn it off and the date resets back to the > epoch? > > > One change on the verdex vs basic/connex is that we now expose on the new > 24-pin connector a backup-battery connection which can be used to power the > RTC while the verdex is "off". To understand how to use this, refer to the > docs for the TPS65020 PMIC which we use on the verdex. > > This leads me to wonder, if using a Verdex board and a breakout-vx > together, > since the breakout-vx has a battery connector, could that be used as a > battery > for the real time clock or is it only (I would assume) for battery power > for the > system itself? > > > That's for the system itself. You need to attached to the specially > designated pins on the 24-pin to power the RTC independently of the rest of > the system. > > Just wondering if I would still need to use an external ds1307 RTC from > sparkfun.com > if I migrated to the Verdex platform. > > > No; you shouldn't. It might be easier to use though -- you might need to > modify stuff in the bootloader and/or kernel to get the on-SoC RTC stuff > working right. > > C > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > |
From: Dante S. <da...@ma...> - 2009-07-13 21:15:06
|
Hello, I would like to use the RTC on my Verdex (not pro) to keep the date/time after I power off the unit. I've read on the gumstix.net site that this can be done by connecting to the V_BACKUP_BATT pin on the 24-pin flex connector, but after going through the mailing list archive I've only found some discussions and no conclusive evidence that it has worked yet. Let's say I have a 3V power source ready to go. What else would I have to do to make my OE-powered Verdex work with this? Thanks, Dante -- View this message in context: http://www.nabble.com/Verdex-RTC-tp24469493p24469493.html Sent from the Gumstix mailing list archive at Nabble.com. |
From: kris d. <t_...@ya...> - 2009-08-05 20:47:07
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I don't know if I am too late, but I did some testings and I figured out that we have to put by ourself the gumstix on standby mode else your battery will be dead in one night... Moreover, we hate to play with the script hwclock to stop resetting the time with the time the gumstix had at the last shutdown. Moreover, depending on your kernel version, you will have to rebuild it so he will support the internal rtc.. hope this helps --- On Mon, 7/13/09, Dante Sanchez <da...@ma...> wrote: From: Dante Sanchez <da...@ma...> Subject: [Gumstix-users] Verdex RTC To: gum...@li... Received: Monday, July 13, 2009, 5:15 PM Hello, I would like to use the RTC on my Verdex (not pro) to keep the date/time after I power off the unit. I've read on the gumstix.net site that this can be done by connecting to the V_BACKUP_BATT pin on the 24-pin flex connector, but after going through the mailing list archive I've only found some discussions and no conclusive evidence that it has worked yet. Let's say I have a 3V power source ready to go. What else would I have to do to make my OE-powered Verdex work with this? Thanks, Dante -- View this message in context: http://www.nabble.com/Verdex-RTC-tp24469493p24469493.html Sent from the Gumstix mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.com. |