the spaces in the footprint name definitely cause UPDATE PCB not to work
yes on occasion the function does work with the spaces
i think maybe the first time it works or something like that
there was some other issue w/ the spaces but fortunately :) i cannot
remember what it was
ds
_______________________________________________________________________
Integrated Controls, Inc. Tel: 415-647-0480 EXT 107
2851 21st Street Fax: 415-647-3003
San Francisco, CA 94110 www.integratedcontrolsinc.com
[EMAIL PROTECTED] wrote:
Gareth,
I have one footprint name of 16 characters, one of 17 characters (inc two
spaces) in one of my designs.
I had problems updating the PCB, so I installed 99SE on a spare laptop,
the design worked fine. So at the time I put it down to a problem on my
desktop PC. It now seems odd the only design I've had that type of trouble
with is the only one containing >14 length footprint names...a bit of a
coincidence perhaps?
I have other shorter length footprint names with spaces in more than one
design which update fine, so I'm not sure how much truth there is in
avoiding that either. I've certainly not had any problems myself.
Best Regards
Norman Webster
Development Engineer
Gas Detection Systems
--------------------------------------------------------------
Draeger Safety UK Limited
www.draeger-safety.com
---------------------------------------------------------------
Draeger Safety >> Pioneering Solutions
"Gareth De Mar" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
02/06/2005 02:07
Please respond to
Protel EDA Discussion List <[email protected]>
To
"Protel EDA Discussion List" <[email protected]>
cc
Subject
RE: [PEDA] PCB library size in 99SE? HUGE!
Brad...
Thats interesting about the >14 length footprint names. I have started
using IPC names for my footprints, and some of them can be quite long.
Haven't noticed anything untoward so far though. Oh well... fingers
crossed!!
Cheers,
Gareth de Mar.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Brad Velander
Sent: Thursday, 2 June 2005 10:06 AM
To: Protel EDA Discussion List
Subject: RE: [PEDA] PCB library size in 99SE? HUGE!
Leo,
Good that you found your problem.
I can comment on one of your found limitations though.
Technically maybe the name of a footprint or symbol is limited to 65535
elements. However, if you exceed approx. 14 characters on a footprint name
there are some functions in P99SE that will bite you down the road. I
can't remember the precise details but when I first started using P99SE I
found that some footprints would not update (can't recall how I was trying
to update them, synch'ing or update from library) if the footprint name
exceeds 14 characters.
Sincerely,
Brad Velander
Senior PCB Designer
Northern Airborne Technology
1925 Kirschner Rd.,
Kelowna, BC, V1Y 4N7.
tel (250) 763-2329 ext. 225
fax (250) 762-3374
-----Original Message-----
From: Leo Potjewijd [mailto:[EMAIL PROTECTED]
Sent: June 1, 2005 3:15 PM
To: Protel EDA Discussion List
Cc: Protel EDA Discussion List
Subject: RE: [PEDA] PCB library size in 99SE? HUGE!
At 01/06/05 19:20, Brad Velander wrote:
Leo,
my libraries are typically much larger (10 - 40MB) than the size
mentioned in your reported size. I have never seen a problem.
I don't think that the reported size is correct. Do you have the
libraries stored in a DDB file? Have you compressed that DDB library
file
recently? DDB files can get quite large when they are not compressed
regularly.
Well folks,
it took quite a bit of bit-digging but I finally found the cause for
Protels' sudden interest in it's navel (didn't know it even had one, until
yesterday afternoon :): for reasons as yet unknown the offending library
was corrupted, big time.
It started out fine but after twelve or so components the information was
complete rubbish. Luckily I have the same setup with a 10-generation
auto-backup every 10 minutes on three PC's, so I only needed to add one
component to be back in business.
Brad: as a result of many earlier system crashes (on totally different
PCs)
I use the Windows file system for storage exclusively. Pro: no compression
needed (ever) and all files are visible/manipulatable outside Protel. Con:
directories look a bit cluttered.
Note: our software developers had also noticed several qugs (quirky,
bug-like events) in MS Access..
For those interested, while digging I found the really, really hard limits
concerning PCB libraries:
1) a library can be a maximum of 4,294,967,295 (2^32-1) bytes long
2) component names have a maximum length of 255 characters
3) a component can be comprised of 65535 elements maximum
4) each element is stored as an ASCII 'record' of maximum 65535 characters
long
Point 4 surprised me, too. After all, it is supposed to be a binary.......
Point 1 (and 4) effectively limits the maximum number of components
because
the file is sequential and internally uses 32-bit unsigned numbers for
navigation. However, for all practical uses this is equal to no limit at
all.
I now suspect the PC's hardware to produce intermittent memory and/or
harddisk faults; they seem temperature related (most other crashes and
failures occurred in the summer). Various memory test programs revealed
nothing so far. Maybe I need a brand new one.....
More backups and checks then, I hate to lose another day on this sort of
crap....
Thanks,
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