19 AD&DA

........\EX19.1 LED显示AD转换结果

........\........................\AD_LED

........\........................\AD_LED.M51

........\........................\AD_LED.Opt

........\........................\AD_LED.Uv2

........\........................\AD_LED.hex

........\........................\AD_LED.plg

........\........................\AD_LED_Opt.Bak

........\........................\AD_LED_Uv2.Bak

........\........................\STARTUP.A51

........\........................\STARTUP.lst

........\........................\STARTUP.obj

........\........................\main.LST

........\........................\main.OBJ

........\........................\main.c

........\EX19.2 AD采集1602液晶显示

........\.........................\1602.LST

........\.........................\1602.OBJ

........\.........................\1602.c

........\.........................\AD_1602

........\.........................\AD_1602.M51

........\.........................\AD_1602.Opt

........\.........................\AD_1602.Uv2

........\.........................\AD_1602.hex

........\.........................\AD_1602.plg

........\.........................\AD_1602_Opt.Bak

........\.........................\AD_1602_Uv2.Bak

........\.........................\PCF8591.LST

........\.........................\PCF8591.OBJ

........\.........................\PCF8591.c

........\.........................\STARTUP.A51

........\.........................\STARTUP.lst

........\.........................\STARTUP.obj

........\.........................\main.LST

........\.........................\main.OBJ

........\.........................\main.c

........\EX19.3 DA输出固定模拟电压

........\.........................\DA

........\.........................\DA.M51

........\.........................\DA.Uv2.bak

........\.........................\DA.hex

........\.........................\DA.opt.bak

........\.........................\DA.plg

........\.........................\DA.uvopt

........\.........................\DA.uvproj

........\.........................\DA_Opt.Bak

........\.........................\DA_Uv2.Bak

........\.........................\STARTUP.A51

........\.........................\STARTUP.lst

........\.........................\STARTUP.obj

........\.........................\main.LST

........\.........................\main.OBJ

........\.........................\main.c

........\EX19.4 DA输出控制LED亮度变化

........\............................\DA_LED

........\............................\DA_LED.M51

........\............................\DA_LED.Uv2.bak

........\............................\DA_LED.opt.bak

........\............................\DA_LED.plg

........\............................\DA_LED.uvopt

........\............................\DA_LED.uvproj

........\............................\DA_LED_Opt.Bak

........\............................\DA_LED_Uv2.Bak

........\............................\DA_LED_uvopt.bak

........\............................\STARTUP.A51

........\............................\STARTUP.lst

........\............................\STARTUP.obj

........\............................\main.LST

........\............................\main.OBJ

........\............................\main.c