P0071 Terasic Technologies Inc, P0071 Datasheet - Page 97

• Manufacturer Part Number: P0071
• Description: TPAD MULTIMEDIADEVELOPMENT KIT
• Manufacturer: Terasic Technologies Inc
• Series: tPAD, Cyclone®IVr

Specifications of P0071

• Main Purpose: Reference Design, Tablet
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: EP4CE115
• Primary Attributes: 8-Inch TFT LCD, LED Backlight
• Secondary Attributes: 5-Megapixel Digital Image Sensor
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 6-17
6
In this demonstration, the key-related information that the user has pressed on the remote
controller(Figure 6-18，Table
point the remote controller to the IR receiver on DE2-115 board and press the key. After the signal
being decoded and processed through FPGA, the related information will be displayed on the
7-segment displays in hexadecimal format, which contains Custom Code, Key Code and Inversed
Key Code. The Custom Code and Key Code are used to identify a remote controller and key on the
remote controller, respectively.
Next we will introduce how this information being decoded and then displayed in this demo.
When a key on the remote controller is pressed, the remote controller will emit a standard frame,
shown in
is the key-related information, and the last 1 bit end code represents the end of the frame.
HEX0
HEX1
HEX2
HEX3
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Figure
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illustrates the setup of this demonstration.
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6-19. The beginning of the frame is the lead code represents the start bit, and then
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Figure 6-17 The setup of the PS/2 Mouse demonstration
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Low byte of X displacement
High byte of X displacement
Low byte of Y displacement
High byte of Y displacement
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6-3) will be displayed on the DE2-115 board. Users only need to
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