Power consumption

[Moshe Peleg]

Hi,

I'm looking for power consumption API's if there are any.
I'm using GetSystemPowerStatusEx and GetSystemPowerStatusEx2 in order to get
batteries status,
but I'm trying to fine tune power consumption in my application.

Trying to get power consumption when BT is on/off etc.

In addition,

Do you know of any way to really shutdown an hp iPaq ?
How many "standby" modes are there on pda's ?

Thank you very much,

Moshe.

 

[Guest]

I'm looking for power consumption API's if there are any.

I'm using GetSystemPowerStatusEx and GetSystemPowerStatusEx2 in order to
get batteries status,
but I'm trying to fine tune power consumption in my application.

Trying to get power consumption when BT is on/off etc.

The only way to do this is to measure current draw of the system. It can be
done by pulling the battery and powering the device from a bench supply with
current-measuring capabilities or attaching a current meter inline with the
battery.

In addition,

Do you know of any way to really shutdown an hp iPaq ?

There is no way. Pocket PCs don't support it. They suspend. A full power
down happens when the battery is dead or removed.

How many "standby" modes are there on pda's ?

Depends on the PDA, but generally 1. The "standby" mode is different for
different devices though, so standby on a PPCPE device is different that
standby on a non-PE Pocket PC.


--
Chris Tacke - Embedded MVP
OpenNETCF Consulting
Managed Code in the Embedded World
www.opennetcf.com
--

 

[Moshe Peleg]

Thanks !

The only way to do this is to measure current draw of the system. It can
be done by pulling the battery and powering the device from a bench supply
with current-measuring capabilities or attaching a current meter inline
with the battery.


There is no way. Pocket PCs don't support it. They suspend. A full
power down happens when the battery is dead or removed.


Depends on the PDA, but generally 1. The "standby" mode is different for
different devices though, so standby on a PPCPE device is different that
standby on a non-PE Pocket PC.


--
Chris Tacke - Embedded MVP
OpenNETCF Consulting
Managed Code in the Embedded World
www.opennetcf.com