CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to support@ccsinfo.com
unused ports

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
jelodavid



Joined: 03 Apr 2005
Posts: 22
Location: Laguna Philippines

View user's profile Send private message Yahoo Messenger

unused ports
PostPosted: Thu Jun 09, 2005 1:44 am     Reply with quote
hello everybody.! Any suggestion for unused ports? Shall i remain it floating or do i have to connect it to gnd?
ckielstra



Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

View user's profile Send private message

PostPosted: Thu Jun 09, 2005 2:10 am     Reply with quote
Please try the Search function of this forum before posting.
Using the keywords 'unused ports' I found the following thread http://www.ccsinfo.com/forum/viewtopic.php?t=3861&highlight=unused+ports
valemike
Guest
PostPosted: Thu Jun 09, 2005 6:29 am     Reply with quote
The cheapest and most convenient way is to leave unused pins dangling, and you have to drive them as outputs. Doesn't matter if you put a '0' or 1' on each bit independently. That's what i always do.

The Microchip FAE answered this question to me once and said i had a choice of doing the above or terminating each pin with a pullup resistor or pulldown resistor and configuring the TRIS pins as inputs.

So youve got your choice.
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group