Touchpanel

Hello,

I have the same problem with high CPU load due to touch panel operation as described in "Hohe Systemlast - Touchpanel" (NetDCU9).

An alternative driver <n9_touchpoll.dll> is recommended in this thread.
Is <n9_touchpoll.dll> suitable for PicoCOM2?

Where can I find a complete documentation of settings for the touchpanel driver? At least some parameters seem to miss in the table in <PicoCOM2_DeviceDriver_V106_eng.pdf>, as for "SamplePeriodLowHns" and "SamplePeriodHighHns" which are referred to in the cited thread.

Which driver revision has <pc2_touch.dll> as part of the kernel <NKPC2_CORE_CF2_100806.bin>?

Is there any way to temporarily disable mouse/keyboard/touchpanel ?

Thanks in advance.

Hello,

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You will get this information from the serial debug output while booting.

I do not have a serial communication line, can only use ActiveSync.

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If the documentation is not up to date you may set registry value "debug" to "0x4" to get a list of the currently adjusted settings.

Where will it be displayed? I am looking for a documentation about which parameters can be set, which are valid settings and what is the purpose of each parameter.

Currently I use
SamplePeriodLowHns = 2000000
and
TouchSamples = 3
CPU resources consumption has gone down almost as required but, not surprisingly, touchpad response got worse. Will it be the only way to prevent touchpad from disturbing other applications by setting a compromise of parameters?

Regards

Hello,

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for test, development and adjustment you should enabe this line.

I would like to but I do not have a serial connection at all.

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"SamplePeriodLowHns = 2000000" brings no observable improvement?

It improved but not enough. The main application running as topmost window is less impacted by touchpad traffic with the modified settings, but it is still somewhat slowed down while there is touchpad traffic. (The problem is that the main application operates a flash lamp, and its trigger frequency must not change during a series of flashes.)
Besides, I set
HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Touch\Priority256=255
(standard: 109) with some effect, but not enough..

Regards