| ??? 02/14/10 08:19 Read: times |
#173149 - PROBLEM FIXED - Working now Responding to: ???'s previous message |
the following code did it .
$MOD51
;
; The processor clock speed is 11.059MHz
; Cycle time is 1.1ms
input_port equ p2.7
output_port equ p2.0
org 00
ljmp main
org 100h
main:
setb input_port ;prepare p2.7 for input
setb output_port
loop: mov c,input_port ;read the state of p2.7 and
;store in the carry flag
cpl c ;compliment the input
mov output_port, c ;transfer p2.7 status to p2.0
sjmp loop
end
|
| Topic | Author | Date |
| problems programming the P89V51 | 01/01/70 00:00 | |
| here is the schematic I am following | 01/01/70 00:00 | |
| EA | 01/01/70 00:00 | |
| tied EA high still no luck | 01/01/70 00:00 | |
PROBLEM FIXED - Working now | 01/01/70 00:00 |