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Demonstration architecture overview
2.10
Camera
The camera demo obtains raw data from the camera module and displays it on the LCD
through the GUI core.
Figure 25. Camera diagram
The user can use the capture button to take a snapshot of the video and display only a
single frame on the LCD. Pressing again the capture button restores the continuous display
mode.
Figure 26. Capture screen
2.11
Sub-demo interaction
Due to the intensive CPU use of some parts of the application (GUI refresh and access to
the USB Flash disk), some sub-demos cannot be run at the same time.
In order to reduce this interaction and reduce the time needed by the GUI to refresh the
displayed windows, only the USB Console window and the clock are allowed to run when
the Audio Player is running. This is considered as an "exclusive" sub-demo, which means
that the user cannot run the Audio Player and another sub-demo at the same time. When
the user attempts to launch an exclusive sub-demo, a message box is displayed to inform
the user that an exclusive sub-demo is already running.
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Doc ID 018665 Rev 3
UM1069
Video frame
Slider to change
brightness
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