89c51 based on the dot matrix display, clock, AD/DA conversion process has finished debugging, you can directly use

89c51
.....\AD0809
.....\......\ad.DSN
.....\......\ad.PWI
.....\......\ad.__i.DSN
.....\......\ad.__i.PWI
.....\......\AD0809.DSN
.....\......\AD0809.PWI
.....\......\AD08091.PWI
.....\......\adc.c
.....\......\adc.LST
.....\......\adc.OBJ
.....\......\adc0809
.....\......\adc0809.c
.....\......\adc0809.hex
.....\......\adc0809.lnp
.....\......\adc0809.LST
.....\......\adc0809.M51
.....\......\adc0809.OBJ
.....\......\adc0809.Opt
.....\......\adc0809.plg
.....\......\adc0809.Uv2
.....\......\adc0809_Opt.Bak
.....\......\adc0809_Uv2.Bak
.....\......\adda.c
.....\......\da.DSN
.....\......\Last Loaded ad.DBK
.....\......\Last Loaded AD0809.DBK
.....\......\STARTUP.A51
.....\......\STARTUP.LST
.....\......\STARTUP.OBJ
.....\clock
.....\.....\c.DSN
.....\.....\c.PWI
.....\.....\clock
.....\.....\clock.c
.....\.....\clock.hex
.....\.....\clock.lnp
.....\.....\clock.LST
.....\.....\clock.M51
.....\.....\clock.OBJ
.....\.....\clock.Opt
.....\.....\clock.plg
.....\.....\clock.Uv2
.....\.....\clock1.c
.....\.....\clock_Opt.Bak
.....\.....\clock_Uv2.Bak
.....\.....\Last Loaded c.DBK
.....\.....\STARTUP.A51
.....\.....\STARTUP.LST
.....\.....\STARTUP.OBJ
.....\dianzhen
.....\........\dianzhen
.....\........\dianzhen.hex
.....\........\dianzhen.lnp
.....\........\dianzhen.M51
.....\........\dianzhen.Opt
.....\........\dianzhen.plg
.....\........\dianzhen.Uv2
.....\........\dianzhen_Opt.Bak
.....\........\dianzhen_Uv2.Bak
.....\........\dzled.DSN
.....\........\eg12_3.DSN
.....\........\eg12_3.PWI
.....\........\eg12_3dotmatrix.DSN
.....\........\eg12_3dotmatrix.PWI
.....\........\eg12_3_0.DSN
.....\........\eg12_3_0.PWI
.....\........\eg12_3_1.DSN
.....\........\eg12_3_1.PWI
.....\........\hang.c
.....\........\hang.LST
.....\........\hang.OBJ
.....\........\Last Loaded dzled.DBK
.....\........\Last Loaded eg12_3.DBK
.....\........\Last Loaded eg12_3_0.DBK
.....\........\led
.....\........\led.c
.....\........\led.hex
.....\........\led.LIB
.....\........\led.lnp
.....\........\led.LST
.....\........\led.M51
.....\........\led.OBJ
.....\........\led.Opt
.....\........\led.plg
.....\........\led.Uv2
.....\........\led_Opt.Bak
.....\........\led_Uv2.Bak
.....\........\run led.c
.....\........\run led.LST
.....\........\run led.OBJ
.....\........\STARTUP.A51
.....\........\STARTUP.LST
.....\........\STARTUP.OBJ
.....\........\Text1.c
.....\........\Text1.LST
.....\........\Text1.OBJ
.....\........\three.lst
.....\........\three.obj

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