Suspended mode
Andy Green
andy at openmoko.com
Tue Feb 5 12:55:33 CET 2008
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Somebody in the thread at some point said:
> Hi Andy:
>
>> Also check all the supply rails like V-DBB, V-IO, V-FLASH (hmm),
>> V_SRAM, V-SIM, V_RTC (hmm) and V-ABB to find ones that have >=1.8V
>> in suspend, then try to remove any pullup to these rails, eg, if
>> V-SIM has >= 1.8V, try to remove R1010 as a test.
>
> I power off GSM modem and set RX, TX, CTS, and RTS to output Low. The
> VBAT is 0.004. V-DBB, V-IO, V-FLASH,V-SRAM,V-SIM,V-RTC,and V-ABB are
> almost zero. I found total current is 4~5mA. It is better than before
> (8~9mA).
WAH excellent! If it is true for all devices (there was some spread
seen by Matt over different devices) then you just doubled suspend time
- -- great!
- -Andy
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