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 CCS Technical Support
Fuse Settings 18F26J50

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



Joined: 08 Dec 2006
Posts: 125
Location: Texas

View user's profile Send private message

Fuse Settings 18F26J50
PostPosted: Mon Jul 12, 2010 8:06 am     Reply with quote
I'm getting a little lost in the 18F26J50 datasheet and I'm looking for clarification. All the "normal" fuses such as Brownout and Power On timer have been changed to the Deep Sleep equiv.

I'm running a bootloader and I'm trying to avoid the program memory becoming corrupt as I just learned in a previous thread. Does using the DSBOR still help me even if I'm not using Deep Sleep?

Richard
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

View user's profile Send private message

PostPosted: Mon Jul 12, 2010 12:10 pm     Reply with quote
The 18F26J50 data sheet says this:
Quote:

4.4 Brown-out Reset (BOR)

The “F” devices in the PIC18F46J50 family incorporate
two types of BOR circuits: one which monitors VDDCORE
and one which monitors VDD. Only one BOR circuit can be
active at a time.

When in normal Run mode, Idle or normal Sleep modes,
the BOR circuit that monitors VDDCORE is active.

As I understand it, the normal Brownout function is always active if
the chip is running off its internal regulator (which will be used if you
have the 18F26J50). The DSBOR fuse only has meaning if you use
Deep Sleep mode. So leave it off.

This assumes you are using the 18F26J50, and not the "LF" version.
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