Use 4* 4 matrix keyboard control C8051f040 DCA chip output, use LCD1602 display digital inputs, output range 0-5V, DAC precision 12.

C8051F 键控DAC\config\config.h
..............\......\const.h
..............\......\vars.c
..............\dac
..............\dac.lnp
..............\DAC.lst
..............\dac.M51
..............\DAC.obj
..............\dac.Opt
..............\dac.plg
..............\dac.Uv2
..............\dac_Opt.Bak
..............\dac_Uv2.Bak
..............\delay.lst
..............\delay.obj
..............\.river\AD9850.c
..............\......\AD9850.h
..............\......\ADC.c
..............\......\ADC.h
..............\......\DAC.C
..............\......\DAC.h
..............\......\delay.c
..............\......\delay.h
..............\......\key.c
..............\......\key.h
..............\......\keyscan.c
..............\......\keyscan.h
..............\......\lcd.c
..............\......\lcd.h
..............\......\other.c
..............\......\other.h
..............\......\system.c
..............\......\system.h
..............\keyscan.lst
..............\keyscan.obj
..............\keyscan.__i
..............\lcd.lst
..............\lcd.obj
..............\main.lst
..............\main.obj
..............\main.__i
..............\source\main.c
..............\system.lst
..............\system.obj
..............\system.__i
..............\vars.lst
..............\vars.obj
..............\config
..............\driver
..............\source
C8051F 键控DAC

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