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Assembly problem

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alphasil

alphasil

Programmer
Jan 7, 2012
1
PT
Hi
I have a problem with a code in 8051.

I must use 6 switch with instructions.
The 1º fisrt one, when i press 0 i must put a letter in LCD display.

This code does not work like i want

SETB P2.0 (define the switch)
inst1: JB P2.0, outra
MOV P1, #'N'
SJMP inst1
outra: MOV P1, #'S'
SJMP inst1

But the button (switch) doesn't do anything...

any help?

Thanks
 
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