During the weekend, the Contiki website got its millionth visitor since November 2006 - check out the visitor statistics on the left. URL: http://www.sics.se/contiki/news/contiki-website-gets-million-visitors.html ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword
Not sure if the AVR ELF loader still works - it has been a while since we last touched it (back in 2006 or so). The ELF loader reads an ELF file from a local CFS storage (EEPROM, on-chip flash, external flash, RAM, ...), links it and loads it into executable memory. The ELF file must be transfered to the target system before linking it (this was the purpose of the old codeprop code). We currently do not have a working example of how to go about this on the Raven boards though. A (not so) quick way to try to get it running would be: * Get the telnetd + shell running on the raven (see examples/sky-ip/sky-telnet-server.c for an example, but for the Tmote Sky platform). * Enable the wget shell command (add shell_wget_init() in the shell initialization code - right where the other shell_*_init()s are). * Enable the exec shell command (add shell_exec_init() in the shell initialization code). * Try either the cfs-eeprom or enable the cfs-ram to use the RAM as a single-file local file system (edit platform/avr-raven/Makefile.raven) * Compile a hello-world.ce file (make hello-world.ce) and upload it to a web server * Run the system, telnet to the Raven, * Run "wget http://webservers-ip-address/hello-world.ce" to download the file * Execute the file with "exec hello-world.ce" Not sure how well wget works with IPv6 addresses though.(Continue reading)
Hi all, This is my first question on this mmailing list, so... I'm studying contiki for the moment, and for that I try to get it all running on my C64. Why not combine fun and work? I can get the webserver example of contiki to run on VICE on my macbook. However, I can't get the example example-psock-client.c to work. The TCP connection is closed right after the first tcpip event. VICE runs on my macbook and I try to connect to a linux box on the same network segment. I do see some TCP packets going around using wireshark, but have looked into them with much detail. They do not seem to contain data, but look like the negotiation packets for tcp. Are there other things I need to do? One difference I see is that the webserver example dumps messages from the config reader to stdout. This is something what the client example does not. So, is it using the config by default, without dumping to screen or do i need some special flags to activate before the network initialization runs? Maybe it is related, but I can do cputs (the conio functions from cc65) but not printf. Again, which flags do i need to set or what do i need to do to get going? I'll be investigating this further, but any help is welcome(Continue reading)regards, -- -- "The future is here. It's just not evenly distributed yet." - William Gibson
Hi Johan, > Maybe it is related, but I can do cputs (the conio functions from > cc65) but not printf. Again, which flags do i need to set or what do i > need to do to get going? The cc65 C-library supports only a limited number of in-use file descriptors. In order to save them for "real" file acces the main() function in contiki-2.x/platform/c64/contiki-main.c contains these lines: close(STDIN_FILENO); close(STDOUT_FILENO); #if !UIP_LOGGING && !LOG_CONF_ENABLED close(STDERR_FILENO); #endif Just remove that stuff altogether if you're not low on file descriptors. This will enable printf()... Best, Oliver ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword
On Montag 02 Februar 2009, Oliver Schmidt wrote: > Hi Johan, > > > Maybe it is related, but I can do cputs (the conio functions from > > cc65) but not printf. Again, which flags do i need to set or what do i > > need to do to get going? > > The cc65 C-library supports only a limited number of in-use file > descriptors. In order to save them for "real" file acces the main() > function in contiki-2.x/platform/c64/contiki-main.c contains these > lines: > > close(STDIN_FILENO); > close(STDOUT_FILENO); > #if !UIP_LOGGING && !LOG_CONF_ENABLED > close(STDERR_FILENO); > #endif > > Just remove that stuff altogether if you're not low on file > descriptors. This will enable printf()... or maybe include conio.h and use cprintf instead. (might result in a bit less overhead and more free memory) -- -- http://www.hitmen-console.org http://magicdisk.untergrund.net http://www.pokefinder.org http://ftp.pokefinder.org In a society in which there is no law, and in theory no compulsion, the only(Continue reading)
From: Bjorn Gronvall <bg@...> To: Contiki developer mailing list <contiki-developers@...t> Cc: Brad.Petrus@..., bg@... Subject: Re: [Contiki-developers] Runtime dynamic linking Date: Mon, 2 Feb 2009 17:08:28 +0000 X-Mailer: Claws Mail 3.5.0 (GTK+ 2.12.11; i386-portbld-freebsd7.1) Organization: SICS.SE On Mon, 26 Jan 2009 17:07:03 -0500 "Petrus Brad (CR/RTC3-NA)" <Brad.Petrus@...> wrote: Moi, > I would like to get a simple demo running on the Atmel Raven boards in > which I replace a running service/component with a downloaded component. > Looking through the version 2.2.2 sources, I found the codeprop and > program_handler example applications, although it doesn't look like > these perform what I had in mind. Can anyone point me to some example > code - like that used in the "Run-Time Dynamic Linking for Reprogramming > Wireless Sensor Networks" ACM papers? Also, is there anywhere > documentation of the process to follow in getting something like this > working? Finally, is the processor-specific support for dynamic linking > available for the Raven boards? The RUNES project implemented a framework for multi-module loading/unloading. The framework used an open-ended approach and consisted of two pieces, CLE (Contiki Link Editor) and CMOD (Contiki MODules). If I remember correctly there was also an example program elfloader_compat.c that illustrated how CLE can be used independently from CMOD. The code was verified to work on both the AVR and the(Continue reading)
Hi Adam, Thanks for providing the information on testing of the dynamic linking. I will start playing around with this today! Thanks, Brad -----Original Message----- From: Adam Dunkels [mailto:adam@...] Sent: Sunday, February 01, 2009 5:01 AM To: Contiki developer mailing list Subject: Re: [Contiki-developers] Runtime dynamic linking Not sure if the AVR ELF loader still works - it has been a while since we last touched it (back in 2006 or so). The ELF loader reads an ELF file from a local CFS storage (EEPROM, on-chip flash, external flash, RAM, ...), links it and loads it into executable memory. The ELF file must be transfered to the target system before linking it (this was the purpose of the old codeprop code). We currently do not have a working example of how to go about this on the Raven boards though. A (not so) quick way to try to get it running would be: * Get the telnetd + shell running on the raven (see examples/sky-ip/sky-telnet-server.c for an example, but for the Tmote Sky platform). * Enable the wget shell command (add shell_wget_init() in the shell(Continue reading)
Hi Bjorn, Thanks for the information and the Runes paper! I will check if the files you mentioned are still in the source tree. Thanks, Brad -----Original Message----- From: Bjorn Gronvall [mailto:bg@...] Sent: Monday, February 02, 2009 12:08 PM To: Contiki developer mailing list Cc: Petrus Brad (CR/RTC3-NA); bg@... Subject: Re: [Contiki-developers] Runtime dynamic linking On Mon, 26 Jan 2009 17:07:03 -0500 "Petrus Brad (CR/RTC3-NA)" <Brad.Petrus@...> wrote: Moi, > I would like to get a simple demo running on the Atmel Raven boards in > which I replace a running service/component with a downloaded component. > Looking through the version 2.2.2 sources, I found the codeprop and > program_handler example applications, although it doesn't look like > these perform what I had in mind. Can anyone point me to some example > code - like that used in the "Run-Time Dynamic Linking for Reprogramming > Wireless Sensor Networks" ACM papers? Also, is there anywhere > documentation of the process to follow in getting something like this > working? Finally, is the processor-specific support for dynamic linking > available for the Raven boards?(Continue reading)
Can CLE + CMOD also load Compact ELF files (CELF: from dunkels'06) ? Is the tool for this conversion ( ELF to CELF ) present in contiki's source tree. Thanks in advance., Waqaas Petrus Brad (CR/RTC3-NA) wrote: > Hi Bjorn, > > Thanks for the information and the Runes paper! I will check if the files you mentioned are still in the source tree. > > Thanks, > Brad > > > -----Original Message----- > From: Bjorn Gronvall [mailto:bg@...] > Sent: Monday, February 02, 2009 12:08 PM > To: Contiki developer mailing list > Cc: Petrus Brad (CR/RTC3-NA); bg@... > Subject: Re: [Contiki-developers] Runtime dynamic linking > > On Mon, 26 Jan 2009 17:07:03 -0500 > "Petrus Brad (CR/RTC3-NA)" <Brad.Petrus@...> wrote: > > Moi, > > >> I would like to get a simple demo running on the Atmel Raven boards in(Continue reading)
Hi, I was just looking over this elfloader. I'm using a rather old version of contiki (2.x), and elfloader-compat works fine. However, we tried to get it to work on the current version, and there seemed to be some issues with the symbols. It links fine, without any errors, sees the process, but does not start it. We checked autostart, and it sees null instead of the process. I have a feeling something is wrong with the way we created the symbols using an older mknmlist, but gave up at that point... any advice is appreciated;) bye, Bence Waqaas Munawar wrote: > Can CLE + CMOD also load Compact ELF files (CELF: from dunkels'06) ? > Is the tool for this conversion ( ELF to CELF ) present in contiki's > source tree. > Thanks in advance., > Waqaas > > Petrus Brad (CR/RTC3-NA) wrote: > >> Hi Bjorn, >> >> Thanks for the information and the Runes paper! I will check if the files you mentioned are still in the source tree. >> >> Thanks, >> Brad >> >>(Continue reading)
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