Sd Card persistence

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R Richard Linsley-Hood 3 years 6 months ago
5 1 0

Does anyone know of a registry setting to make the SD card on an ES400 persistent? i.e. Does not unplug/replug when the terminal suspends/resumes. Available on other terminals. Is it available on the ES400?

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1 Replies

H Herbert De Jong

Richard,
ES400 OEM 19.1 and MC65 OEM 21 unload the SD card on suspend-resume. CQ29005

Note: below regkey change keeps the SD card powered-on in suspend but has the downside of add 1 mA additional power draw in suspend.

; prevent wavedev and sd driver from enterring D2 state when in backlightoff state

 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\BacklightOff]

                "wav1:"=-

                "shc1:"=-

; turn on SD card on resuming and useridle state

 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\Resuming]

                "shc1:"=dword:0

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\UserIdle]

                "shc1:"=dword:0

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\Suspend]

                "shc1:"=dword:0

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