资 源 简 介
7段数码显示译码器设计7段数码是纯组合电路，通常的小规模专用IC，如74或4000系列的器件只能作十进制BCD码译码，然而数字系统中的数据处理和运算都是二进制的，所以输出表达都是十六进制的，为了满足十六进制数的译码显示，最方便的方法就是利用译码程序在FPGA/CPLD中来实现。例子作为七段译码器，输出信号LED7S的7位分别接数码管的7个段，高位在左，低位在右。例如当LED7S输出为“1101101”时，数码管的7个段g、f、e、d、c、b、a分别接1、1、0、1、1、0、1；接有高电平的段发亮，于是数码管显示“5”。-7 digital display decoder design 7 Digital is pure combinational circuits, usually of small-scale dedicated IC, such as 74 or 4000 Series devices can only be used to decimal BCD decoder, but digital systems in the data processing and computing are binary, so the output expression are hexadecimal, and hexadecimal number in order to meet the needs of the decoding shows that the most convenient way is to use decoding process in FPGA/CPLD in to achieve. Seven-Segment decoder as an example, the output signal of the seven were LED7S access digital pipe 7 above, high in the left, low in the right. For example, when LED7S output as
文 件 列 表
work3 CNT4B DECL7S
cnt16(1).cnf
cnt16(2).cnf
cnt16(3).cnf
cnt16(4).cnf
cnt16(5).cnf
cnt16.acf
cnt16.cnf
cnt16.fit
cnt16.hif
cnt16.mmf
cnt16.ndb
cnt16.pin
cnt16.pof
cnt16.rpt
cnt16.scf
cnt16.snf
CNT16.sym
cnt16.vhd
decl7s.acf
decl7s.cnf
decl7s.fit
decl7s.hif
decl7s.mmf
decl7s.ndb
decl7s.pin
decl7s.pof
decl7s.rpt
decl7s.scf
decl7s.snf
DECL7S.sym
decl7s.vhd
declcnt(1).cnf
declcnt(2).cnf
declcnt(3).cnf
declcnt(4).cnf
declcnt(5).cnf
declcnt(6).cnf
declcnt(7).cnf
declcnt.acf
declcnt.cnf
declcnt.fit
declcnt.hif
declcnt.mmf
declcnt.ndb
declcnt.pin
declcnt.pof
declcnt.rpt
declcnt.scf
declcnt.snf
DECLCNT.sym
declcnt.vhd
LIB.DLS
U2309937.DLS
U2810419.DLS
U2969203.DLS
U4501052.DLS
U4540148.DLS
U5540937.DLS
U7510768.DLS
U7890554.DLS
U8030602.DLS
