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74HC573
- 本程序是通过74HC573锁存器控制八个数码管,给大家参考。-The program is controlled through the 74HC573 latch 8 digital tube, for your reference.
12
- 本系统以单片机AT89C51为主体,由芯片插座、独立按键、74HC573驱动8位数码管显示、5V直流电源控制模块等组成。根据数字集成芯片的引脚特性以及集成芯片的真值表编写检测程序。该系统能完成14脚以内常用TTL74系列数字集成芯片的功能测试。-This system is the main body of the single-chip microcomputer AT89C51, the chip socket, independent buttons, 74HC573 Driver 8
8、交通灯
- //---定义IO口---// #define GPIO_DIG P0 //显示段码端口,74HC573锁存器; #define GPIO_PALCE P1 //数码管片选端口,74HC138译码器; #define GPIO_TRAFFIC P2 //交通灯端口; sbit RED10=P2^0; //上人行道红灯; sbit GREEN10=P2^1; //上人行道绿灯; sbit RED11=P2^2; //上机动车红灯; sbit YE