pic驱动1602显示4-20ma值

pic单片机驱动1602，显示实时ad值，按键设置量程上下限

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__Previews
funclist
adc.c
adc.dep
adc.h
adc.p1
adc.pre
data.c
data.dep
data.h
data.p1
data.pre
eeprom.c
eeprom.dep
eeprom.h
eeprom.p1
eeprom.pre
gongcheng.as
gongcheng.cof
gongcheng.hex
gongcheng.hxl
gongcheng.lst
gongcheng.map
gongcheng.mcp
gongcheng.mcs
gongcheng.mcw
gongcheng.mptags
gongcheng.obj
gongcheng.rlf
gongcheng.sdb
gongcheng.sym
gongcheng.tagsrc
gongcheng.X
Makefile
htplug-out111.tmp
includes.h
key.c
key.dep
key.h
key.p1
key.pre
lcd.h
lcd1602.c
lcd1602.dep
lcd1602.p1
lcd1602.pre
mian.c
mian.dep
mian.p1
mian.pre
rs485.c
rs485.dep
rs485.p1
rs485.pre
startup.as
startup.lst
startup.obj
startup.rlf
time1.c
time1.dep
time1.h
time1.p1
time1.pre
windows.h
win_main.c
win_main.dep
win_main.p1
win_main.pre
win_set.c
win_set.dep
win_set.p1
win_set.pre
gongcheng.X