plz plz help!!!11

Thread Starter

alimob

Joined Jul 20, 2006
2
hi............

plz i need immediate help.................
i need to make a 4 fuction(+,-*\) calculator.....
i am using:
1. 4*3 keypad
2. a single line display 16 pin LCD
3. atmel 89c51 micro controller
4. code must be in c language....


i know "c" somewhat......
i have a programmer for atmel 89c51
and i have full command of keil and protues.....

plz help me........i need to submit my project in abt 8 days.......i need help starting from basics.......
 

Thread Starter

alimob

Joined Jul 20, 2006
2
well its bit of both...............

but mainly software and hardware associated with lcd......

just can't display anything on lcd...........don't know how to......i do know abt all the lcd pins......and their functions but i can't use them in anyway.....


if worst comes to worst....

i am thinking abt forgetting a calculator......abd just somehow display what key is pressed on the keypad.........

plz help......hurry..........
 

beenthere

Joined Apr 20, 2004
15,819
HI,

Do you understand the microprocessor well enough to be able to attach the keypad? It might help if you could post a schematic of how you propose to do so.
 

Papabravo

Joined Feb 24, 2006
14,463
I already passed this one on another forum. He had 8 days. I don't think eight days would be enough in the best of circumstances.
 
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