On Thu 16 March 2017 22:31:33 joerg Reisenweber wrote: > For a way more > thorough test, the charger circuit in TWL4030 should get switched off prior > to voltage test (if possible, I don't have the TRM at hand, with the > register specs)
http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=swca025&fileType=pdf >> To reduce leakage in the backup battery charger after charging completes, software can measure VBACKUP using the MADC conversion. If VBACKUP has reached the desired voltage, **the backupmodule can be disabled by setting the BBCHEN bit to 0**. << Alternatively BBSEL=11 (or whatever the polyacene allows) wait unitl VBAT > 2V8 BBSEL=00 wait 2 seconds Then check the actual voltage doesn't drop to 2V5 in an instant. (Delay time 2 seconds is a ballpark random number) /j -- () ascii ribbon campaign /\ against html e-mail - against proprietary attachments http://www.georgedillon.com/web/html_email_is_evil.shtml http://www.nonhtmlmail.org/campaign.html http://www.georgedillon.com/web/html_email_is_evil_still.shtml http://www.gerstbach.at/2004/ascii/ (German)
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