How to implement the standard power saving mode of WINCE6.0?[Copy link]
The driver has already done the power management. Is the default sleep mode: the system will automatically sleep after 3 minutes of inactivity? Does the application need to restart the sleep time if it cannot sleep at the moment when the sleep time is up? By "inactivity", does the OS know that there is no music playing and no data transmission at the moment?
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Published on 2010-1-15 19:19
No operation should mean no mouse or keyboard message application. If you don't want the system to sleep, change the power settings when the program starts, so that it never sleeps, and restore the settings when you exit the program.
"No operation" specifically means that this event is not triggered: The PowerManager/ActivityTimer/UserActivity application can trigger this event, UserActivity, again after the sleep time is up, so that the system does not enter sleep. You can also solve the problem once and for all by directly modifying the power settings. This setting is in the registry as follows: ; Default System Power State Transition Timeouts [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\Timeouts] ; @CESYSGEN IF PM_PM_DEFAULT_PDD "ACUserIdle"=dword:B4 ;3c ; in seconds "ACSystemIdle"=dword:0 ; in seconds "ACSuspend"=dword:0 ; in seconds "BattUserIdle"=dword:B4 ;3c ; in seconds "BattSystemIdle"=dword:0 ; in seconds "BattSuspend"=dword:0 ; in seconds ; @CESYSGEN ENDIF ; PM_PM_DEFAULT_PDD After changing the registry, remember to update the system power information so that the settings can take effect immediately.
The above answer is completely correct. I suggest you read the instructions of wince power management first, which contains corresponding regulations and recommended solutions.
Quote from ricky_hu's reply on the second floor: "No operation" specifically means that the event is not triggered: The PowerManager/ActivityTimer/UserActivity application can trigger this event, UserActivity, again after the sleep time is up, so that the system does not enter sleep. You can also solve the problem once and for all by directly modifying the power settings. This setting is in the registry as follows: ; Default System Power State Transition Timeouts [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\Timeouts] ; @CESYSGEN IF PM_PM_DEFAULT_PDD ? ? "ACUserIdle"=dword:B4? ;3c ; in seconds ? ? "ACSystemIdle"=dword:0? ? ? ; in seconds ? ? "ACSuspend"=dword:0? ? ? ? ; in seconds ? ? "BattUserIdle"=dword:B4 ;3c ; in seconds ? ? "BattSystemIdle"=dword:0? ? ; in seconds ? ? "BattSuspend"=dword:0? ? ? ; in seconds ; @CESYSGEN ENDIF ; PM_PM_DEFAULT_PDD After changing the registry, remember to update the system power information so that the settings will take effect immediately.
Quote from kyzf on the 3rd floor: The above answer is completely correct. I suggest you read the instructions for WinCE power management first, which contains the corresponding regulations and suggested solutions.
Where can I find the instructions for WinCE power management?
I would like to ask a question here. I want to realize the power percentage display, just like the power of a laptop. How should it be displayed? Do you have any good suggestions? Thank you!
Quote from okvictor_20082003 on the 8th floor: Quote from kyzf on the 3rd floor: The above answer is completely correct. I suggest you read the description of WinCE power management first, which contains the corresponding regulations and suggested solutions. Where can I find the description of WinCE power management?
The sleep and wake-up in wince6's power management are the same as those in wince5. There are several registry values that can control how long there is no operation before going into sleep mode. Operation refers to mouse or keyboard messages. If these two messages are received during this period, the timing will be restarted. I have experience in BSP porting for linux, wince, and windows mobile6 on various hardware platforms (S3C2410, S3C2440, S3C6410, EP9315, BF536, BF533, AU1200, MX21, MX31, PXA270, PXA310, Omap750, Omap850, etc.), and experience in developing various peripheral drivers (wifi marvell8686, 8688, bluetooth, gps fast positioning, agts, gprs mc75, keyboard, lcd, otg, battery, fm, encryption chip at88 series, cmmb, audio, power management, translucent overlay, etc.). The solutions that have been made include the following: PDA products based on 2440, with GPRS, CDMA, WIFI, Bluetooth, power management, keyboard, audio, support WinCE5, WinCE6, support sleep, wake-up, registry save, etc. Advertising machine solutions based on ep9315, au1200, to achieve OSD semi-transparent overlay effect, background play DVD movies, middle layer display subtitles or pictures, suitable for elevator advertising machines, subway platforms, etc. Smart phone solutions based on Omap850, PXA270, PXA310, with GPS, GPRS, WIFI, BT, and other common smart phone functions, support Wince6.0, WindowsMobile6 Wireless video transmission solutions based on Mx21, Bf536, etc., under Linux, can simultaneously transmit two-way D1 video data through wifi wirelessly, suitable for video surveillance and other products We are a development team in Beijing, and can reasonably customize relevant software and hardware solutions according to your needs, with reasonable charges. If you have any needs and solution consultation, you can contact Marvell WLAN 8686 (Lingyi Electronics is 09 module, Haihua also has related modules), 8688 (Lingyi is 03 module, Haihua is AW-GH381 module, with Bluetooth) DEMO board, support SPI, SDIO, UART, can be directly flown to the bottom board to verify the transmission performance of different interfaces, reduce the risk of design, after the driver is debugged, then make the board, welcome to contact. QQ: 740721436 Email: bluesky.coco@gmail.com
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