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Trying to run MasterDemo example on Rapsberry Pi 4 and get this error: "Floating point exception" after the debug info screen .

This demo used to work before on RPI 4 ...

What can be the problem?

Thank you!

1 Answer

+1 vote
by
Hello,

difficult to say - based on the provided information.

Are you able to build the examples (e.g. Hello World) according to the Getting Started documentation? Are these running on the target?

If you already have executed the MasterDemo successfully, but now you got some exception when you try it again, please make sure that the hardware and the RasPi configuration is still the same. Please make sure that the touch device is working properly. This causes sometimes problems, when there is no touch connected or configured incorrect.

Best regards,

Manfred.
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Hi, Thank you for the answer!

HW for Rapsberry Pi cannot change, touchscreen is working perfectly with the desktop, configuration is default.

Can someone confirm running of the MasterDemo V11 on RPI 4B ?

Thank you!
by
Hello,

I can confirm that the MasterDemo is running on RasPi 4 with official Raspberry Pi 7“ Touch Screen.

What hardware do you use exactly and which Raspbian OS?

Did you try the first steps to run HelloWorld example?
by
Hi,

I am running thae same HW configuration as you RPI4 4Gb RAM and official 7 inch touchscreen (RPI back mounted with DSI link). Raspbian is upgraded to latest version.

I have used before older versions (last working was 10)  of EmbeddedWizard to compile or run new projects or sample proj. All was good. But now I have installed EMBWiz. ver 11 and MasterDemo dont want to run. Master demo is precompiled project and dont need additional steps. Just install mesa-utils on RPI, copy EmbeddedWizard-RasPi-4B file to RPI , made executable and run ./EmbeddedWizard-RasPi-4B. After debug info I get the message: Floating point exception.

Anyway thank you for the confirmation of MasterDemo working. That means something wrong with my setup.

Thank you!
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I am still facing the problem of "Floating point exception" while running it on Raspberry Pi OS Lite.

Need help
by
Hi!

No, still not resolved!
by

Have you ever tried to let the system generate a core dump and analyse it using gdb as e.g. described here (not verified yet, but should do the trick)?

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Please provide the entire console messages from the beginning when you start the application.
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How can I do that?
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This need SSH, but in console the display cannot be intialized.

 

When I use CLI it output a screen very similar, just date and C compiler version differ. I am refering to example from console output:

 

Just under the bottom line appear: "Floating point exception" message.

by
Why it doesn't work with RPi Desktop Version?
by
For me this is the point. I need something that can run free from Gnome, KDE or something.

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