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Slow response of EMX Touchscree


#1

I have EMX kit available with me, the touch screen is responding very slow can some suggest how to get the faster response?


#2

Have you tried this? http://www.microframeworkprojects.com/index.php?title=GHI_Graphical_Demo


#3

I have tried the given example and it is working properly. In my application i am using Innobedded Rich Media Extention GUI classes and it is responding slow. Is there any code standards/settings to repond LCD faster?


#4

I have to think of it more like an interrupt!!

If too much processing is done in any certain function, you will loose an amount of touch response. I try to have more functions doing less processing each and allowing the system housekeeping time to do its job… I have to optimise my code by adding / subtracting routines until a decent sacrifice is achieved.

Until I learn how to utilize RLP (shouldn’t be long as I pretty good with C) this is how I approach it.

You can always look at Skewworks Pixys2 Thomas uses his own touch response routines.

Cheers Ian


#5

The makers would know better of why performance is not ideal. There is also Pyxis which runs pretty fast on the same EMX you are using http://www.skewworks.com/