IO PORT PROGRAMING CHALANGE : 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes

Forums

8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes :: Forums :: Project Development :: New Ideas regarding projects		<< Previous thread \| Next thread >>
IO PORT PROGRAMING CHALANGE

Go to page 1 [2] 3 4
Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

Author

Post

sashijoseph

Wed Jul 02 2008, 08:15PM

Registered Member #5870

Joined: Mon Feb 04 2008, 06:26PM

Posts: 648
Thanked 137 times in 130 posts

^^but then which of the 10 inputs caused the interrupt wouldn't be traceable.I think that's why Arun has ORed the inputs to the INT pin(with diodes) and simultaneously used parallel IO for tracing the source of the interrupt.

Very thoughtful Arun.

Let there be music........

This post has been thanked 1 time

caze

pdi33

Wed Jul 02 2008, 08:32PM

Registered Member #1329

Joined: Mon Jun 04 2007, 09:28AM

Posts: 770
Thanked 185 times in 180 posts

I think that is a near perfect solution for the problem i woud say by arun.

* inspired to develop,developing to inspire *

caze

Fri Jul 04 2008, 11:15AM

Registered Member #8628

Joined: Thu Jun 26 2008, 04:04AM

Posts: 19
Thanked 0 times in 0 posts

hi @ arun ,

thanks a lot .......

and ill be so thankful to u if u can post asm program here .

[ Edited Fri Jul 04 2008, 11:17AM ]

caze

Arun Kumar V

Sun Jul 06 2008, 07:14PM

Registered Member #426

Joined: Sun Jan 28 2007, 11:50PM

Posts: 521
Thanked 218 times in 185 posts

Sorry for late reply, was on a short trip.

Thank you SJ and Pdi33 !

caze - i'll post the asm code and schematic today

Arun

Arun Kumar V

Mon Jul 07 2008, 06:46PM

Registered Member #426

Joined: Sun Jan 28 2007, 11:50PM

Posts: 521
Thanked 218 times in 185 posts

hello caze,

as promised here's my code and schematic, i have written for 8 I/Os your task is to further increase it to 10 I/Os (its easy after you go thru the code) - Enjoy !