Richard, I've attached batdbug.log and seebstate.log. watch-battery says "No battery". Battery led is always off. Sn is: 00602080608110000873 bat-charge reports this: 320.83 mAh (7d53) 1428.12 mA (2ddc) 6.492 V (195c) Chg: 0.41mAh ( 29) then every column raises line to line (I copied that by hand because bat-charge-log always says "Can't open file", even when usb stick is plugged in)
If the first column is battery's charge, then it's almost dry. Should I try bat-recover or charge it the usual way? After all these tests, I'll have to write a step-by-step guide for the people at our technical center so they can tell when a battery can be recovered and when not, so I must try to cover as many situations as possible. I'll try bat-recover with a bunch of batteries today, so maybe tomorrow or on Wednesday I'll be sending you some logs, if it is ok to you. On Fri, May 1, 2009 at 3:29 AM, Richard A. Smith <rich...@laptop.org> wrote: > Emiliano Pastorino wrote: > > Richard, >> >> I've just received a box with 60 faulty batteries inside, so I'll be >> playing with them >> for the next few years... >> > > :) > > I did a "bat-recover" on one of them for about 18 hours and I noticed >> this: >> When I run "watch-battery", it still says "No battery". I did a full-reset >> of the XO >> but nothing happened, it still says "No battery". >> Then I loaded batman.fth and ran bat-charge and I got a nice output. All >> the values seemed to be OK when charging or discharging the battery. >> I tried "batman-start; 6a bat-set-status; batman-stop" and I could see tha >> 6a in >> the first block, but "watch-battery" still says "No battery". >> > > Hmm.. and see-bstate shows 0 1 2 over and over? > > There is one more battery debugging tool available. Its called bat-debug > and bat-debug-log.with the power for the cpu and for the > > The both read the same thing but bat-debug-log will write the contents to > 'disk:\batdbug.log'. 'disk' is USB or SD depending on what you have > inserted. bat-debug just does the screen and serial port. > > If the 1-wire state machine is just looping over and over bat-debug won't > provide much more info. It might however point out what part of the state > machine is failing. That part of the code has a pretty large number of if() > clauses all lumped into the same state. > > Procedure: > > 1) Remove the problem battery. > 2) Boot machine and stop boot at OFW prompt. > 3) run bat-debug (or bat-debug-log) > 4) insert the battery > 5) let it run for one or 2 screenfuls of info > 6) hit a key to stop bat-debug > > send me the info. Note, that you don't run batman-start before you run > bat-debug since you want the EC state machine to run and you don't need to > 'fload batman.fth'. bat-debug should be in your firmware already. > > What is the difference between batman's "bat-charge" and "watch-battery"? >> Tell me if I'm wrong, but I think that "bat-charge" reads battery info >> directly from it, >> and "watch-battery" takes that info from the EC. So, the problem could be >> that >> the EC isn't synced with the battery. Am I right? >> > > Correct. Batman code takes over the 1-wire communication bus from the EC > and talks directly to the battery. 'watch-battery' uses EC commands to read > what the EC thinks. So if the EC state machine is bailing out for some > reason then you will get odd things from watch-battery where batman only > needs the 1-wire to work. > > So long I could recover 2 batteries out of 4. I'll try more batteries, the >> batteries >> that seem to be ok now are the same model (GP NTA2490), and the other two >> (the ones I couldn't recover even with bat-recover) are >> > > BYD LP183662AR-2S. >> > > I have no idea what this number is. The serial number I would need is the > long string of digits under the barcode in the center of the battery. > > If you want me to do a particular test with any of these batteries, just >> ask and I'll >> share my results with you. >> > > Well. I'd like to make sure the firmware has the diagnostics that will > allow you to figure out whats up with the battery. So depending on what > see-bstate and bat-debug info is I'll perhaps need to make new firmware or > new diags in batman.fth to try and figure out whats up. > > > -- > Richard Smith <rich...@laptop.org> > One Laptop Per Child > -- Ing. Emiliano Pastorino LATU - Plan Ceibal Av. Italia 6201 CP: 11500, Montevideo, Uruguay Tel: (598 2) 601 5773 int.: 210
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