[beagleboard] Touch screen can not work well when AD conveter works.

I am testing the Beaglebone black C and LCD displayer 4DCAPE-70T that is pruced by 4D-systems now. If ADconveter that is installed in the beaglebone black C works, the touch panel that is provided in 4DCAPE-70T works very slowly and sometimes CPU halts at all. For example *root@beaglebone*: ~

[beagleboard] Touch panel can not work well when AD conveter works

I am testing the Beaglebone black C and LCD displayer 4DCAPE-70T that is pruced by 4D-systems now. If ADconveter that is installed in the beaglebone black C works, the touch panel that is provided in 4DCAPE-70T works very slowly and sometimes CPU halts at all. For example *root@beaglebone* m