Introduction - If you have any usage issues, please Google them yourself
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.
Packet : 5757887944jianpanxianshi.rar filelist
vhdl program\debouncing.acf
vhdl program\debouncing.fit
vhdl program\debouncing.hif
vhdl program\debouncing.jam
vhdl program\debouncing.jbc
vhdl program\debouncing.mmf
vhdl program\debouncing.ndb
vhdl program\debouncing.pin
vhdl program\debouncing.pof
vhdl program\debouncing.rpt
vhdl program\debouncing.scf
vhdl program\debouncing.snf
vhdl program\DEBOUNCING.sym
vhdl program\debouncing.vhd
vhdl program\keyboard.acf
vhdl program\keyboard.fit
vhdl program\keyboard.hif
vhdl program\keyboard.jam
vhdl program\keyboard.jbc
vhdl program\keyboard.mmf
vhdl program\keyboard.ndb
vhdl program\keyboard.pin
vhdl program\keyboard.pof
vhdl program\keyboard.rpt
vhdl program\keyboard.scf
vhdl program\keyboard.snf
vhdl program\KEYBOARD.sym
vhdl program\keyboard.vhd
4x4键盘识别与显示设计说明.doc
vhdl program