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wifi versus touchscreen conflict in QT project

Other Parts Discussed in Thread: AM3352

Hi,

I'm working on a custom board which use an AM3352 processor and the Ti SDK 05.07.

On that board I'm running Qt applications that hangs randomnly (freeze after few 10 seconds).

This failure happens when the wifi connection is active, and during a screentouch.

I the Qt applicationis running alone, doing some tacks started by a timer, so without any screen touch, it doesn't hangs.

I tried 2 different Qt application : Both has the problem.

If I start a wifi connection and then use ts_test or ts_calibrate utility, it doesn't fails. The problem is then related to Qt context.

My wifi module is connected to the CPU via SDIO bus on mmc0. The touchscreen is connected through i2c0.

I checked the pinmux settings : It is correct.

I checked also irqs (using cat /proc/interrupts) : No conflict seems to exist.

Any suggestions or ideas would be appreciated.

 

Thanks