Hi,
anyone succeded/tring to suspend to disk with WP7702? It seems there is no swap partition to save date in base build.
regards,
Gianmaria
Not quite sure why you need this…
What is the sleeping current on your side now?
Is it still 20mA according to what you mentioned below?
Yes, I still have 20mA of power drain, also in suspend to mem mode, but Hardware is under revision, cause this maybe a wrong powering of GPS section or something else out of my domain at moment. I’m sure USB is powered off, cause suspend is not possible is USB is connected.
I’m exploring the suspend modes actually and I’m capable of put devices in suspend mem but not in suspend to disk. It seems that swap partition is not set… I’m looking for a way to diasble the “backup” partion used in case of fault to get some space for swap.
Regards,
Gianmaria
Have you seen such fault?
No, never cause I always write the full legato on target device, not just the apps. I deploy a full legato.cwe even on updates.
Gian
then i think you don’t need to care about the “suspend to disk”
I wanted to use disk suspension to save energy, that is, to put the device in a state of dormancy but ready to restart quickly when necessary.
Do you think this direction is useless?
gian
I think you should investigate why it is still higher than the current consumption of sleep mode stated in wp77 specification
20mA is still quite high especially you already shut down the telecom stack
Btw, do you confirm that there is no uart response during sleep mode?
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Confirmed for the uart.
I’ve just an unwanted wakeup every hour cause the device report the temperature.
gian
then maybe there is some leakage of current in your hardware as according to the specification, the current can be less than 1mA when radio off
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