51 entry required ten routines, each with two versions of assembly and C language, there are LED, keyboard, relay, buzzer, etc.

12 单片机IO扩展一(进阶)
.......................\datasheet-相关芯片手册
.......................\......................\74HC595.pdf
.......................\IO扩展电路图.jpg
.......................\Thumbs.db
.......................\输出扩展
.......................\........\74HC595LED控制（输出扩展）
.......................\........\..........................\C
.......................\........\..........................\.\LED_595
.......................\........\..........................\.\LED_595.C
.......................\........\..........................\.\LED_595.hex
.......................\........\..........................\.\LED_595.lnp
.......................\........\..........................\.\LED_595.LST
.......................\........\..........................\.\LED_595.M51
.......................\........\..........................\.\LED_595.OBJ
.......................\........\..........................\.\LED_595.Opt
.......................\........\..........................\.\LED_595.plg
.......................\........\..........................\.\LED_595.Uv2
.......................\........\..........................\.\LED_595_Opt.Bak
.......................\........\..........................\.\LED_595_Uv2.Bak
.......................\........\..........................\.\STARTUP.A51
.......................\........\..........................\.\STARTUP.LST
.......................\........\..........................\.\STARTUP.OBJ
.......................\........\..........................\排线连接说明.txt
.......................\........\..........................\接线图.jpg
.......................\........\74HC595驱动静态数码管
.......................\........\.....................\C版
.......................\........\.....................\...\led
.......................\........\.....................\...\led.c
.......................\........\.....................\...\led.hex
.......................\........\.....................\...\led.lnp
.......................\........\.....................\...\led.LST
.......................\........\.....................\...\led.M51
.......................\........\.....................\...\led.OBJ
.......................\........\.....................\...\led.Opt
.......................\........\.....................\...\led.plg
.......................\........\.....................\...\led.Uv2
.......................\........\.....................\...\led_Opt.Bak
.......................\........\.....................\...\led_Uv2.Bak
.......................\........\.....................\...\STARTUP.A51
.......................\........\.....................\...\STARTUP.LST
.......................\........\.....................\...\STARTUP.OBJ
.......................\........\.....................\Thumbs.db
.......................\........\.....................\接线图.jpg
.......................\........\.....................\汇编
.......................\........\.....................\....\HC595_LED
.......................\........\.....................\....\HC595_LED.asm
.......................\........\.....................\....\HC595_LED.hex
.......................\........\.....................\....\HC595_LED.lnp
.......................\........\.....................\....\HC595_LED.LST
.......................\........\.....................\....\HC595_LED.M51
.......................\........\.....................\....\HC595_LED.OBJ
.......................\........\.....................\....\HC595_LED.Opt
.......................\........\.....................\....\HC595_LED.plg
.......................\........\.....................\....\HC595_LED.Uv2
.......................\........\.....................\....\HC595_LED_Opt.Bak
.......................\........\.....................\....\HC595_LED_Uv2.Bak
.......................\........\.....................\跳线连接说明.txt
.......................\........\双595驱动点阵
.......................\........\.............\C
.......................\........\.............\.\595-LED
.......................\.......

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