UM0882
Description of the demonstration firmware functions
Doc ID 16881 Rev 2
7/20
4
Description of the demonstration firmware functions
The main features of the firmware are:
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Brightness control for each LED
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Color control for each LED
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Error detection to detect LED failure
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Simulation Tetris game.
The RGB LEDs are switched on to display letter 'A', 'B', 'C' or 'D'. Each letter represents
a menu option (or mode).
The firmware mode menu items:
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Mode “A” interactive demonstration - color Tetris
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Mode “B” wave color demonstration
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Mode “C” solid color demonstration
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Mode “D” error detection demonstration.
After power-up, the letter 'A' is displayed blinking. An action on a button or on the knob
allows to select the required mode and display another letter.
Figure 3.
The menu; the letter “A” indicates the first item of the menu
The board can be controlled by four buttons and one knob,
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Button back/reset - exit from current task in to the main menu
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Button left - turn the mode menu decrementally
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Button center - enter the choosen mode in menu
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Button right - turn the mode menu incrementally
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Knob - changes the color of the menu from blue to red.
Figure 4.
The control buttons
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