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 Robotics / RCX / legOS / 1769
1768  |  1770
Subject: 
Re: ROM Firmware size limit? Firmdl bug?
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Thu, 15 Mar 2001 15:56:11 GMT
Viewed: 
1455 times
  
Kieran Elby  <K.E.Elby@durham.ac.uk> wrote:
This works fine for small programs, but for large programs (total size >
~20k) firmdl3 throws an "error in srec file on line X" error. Looking at
the code of firmdl3, there seems to be a define along the lines of
MAX_IMAGE_SIZE = 0x4c00 (this is from memory - i don't have internet
access from my PC!). Increasing this value makes the error go away, but
then the RCX crashes (with a buzzing sound!) when trying to download
programs.
I assume this is due to a ROM limitation, but I was kind of hoping that
maybe someone had found a way around this?

Get the latest version of firmdl and/or the latest version of LegOS.

http://graphics.stanford.edu/~kekoa/rcx/tools.html#Firmdl
http://sourceforge.net/projects/legos/

-Kekoa



Message has 1 Reply:
  Re: ROM Firmware size limit? Firmdl bug?
 
(...) Hmm. Quad speed downloading in Version 3.1 doesn't seem to work under Cygwin on W2K (though single speed does). It always returns either a 'write: permission denied' of 'bad ir link' error (which one it is seems to be random!) , even if the (...) (24 years ago, 17-Mar-01, to lugnet.robotics.rcx.legos)

Message is in Reply To:
  ROM Firmware size limit? Firmdl bug?
 
Hi! I'm using legOS 0.2.4 on Cygwin, and since memory is tight, I thought I'd try statically compiling my program to an .srec file, and using firmdl3 to download it, since I can do without the keys,conio,task, and memory managment stuff. This works (...) (24 years ago, 9-Mar-01, to lugnet.robotics.rcx.legos)

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