- Category:
- SCM
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[WORD]
- File Size:
- 86.35kb
- Update:
- 2008-10-13
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- Uploaded by:
- huangdd1988
Description: 4* 4 keyboard shown 4x4 keyboard identification and display module. Small keyboard in the 0 ~ f has a total of 16 keys, small keyboard and digital tube are connected to the PLD chip, the requirements: Press any button, digital controls, it shows what the digital, let go after the remains showed that the digital, pressed until the new button. Show the shape of characters such as shown in Table 5-1. In this design, 7 digital tube is only a validation tool, for practical applications is usually a row of digital tube, rather than a digital pipe. PLD chips in the completion of this major keys to identify and display driver.
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