Difference between revisions of "Communicate"

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==Forewords==
 
==Forewords==
 
The default connection uses a simple RS232 Null-Modem cable (with or without USB<->serial adapter). <br>
 
The default connection uses a simple RS232 Null-Modem cable (with or without USB<->serial adapter). <br>
−
If you want to transfer data in a faster way, the Ethernet link is recommended.<br>
+
As you will have to transfer some mega bytes of data, the Ethernet link is mandatory.<br>
 +
In order to use these two media with the APF target a terminal emulator (for RS232 link) and a TFTP server (for Ethernet link) have to be configured.
 +
 
 
At this stage, you should have something looking like that (IP addresses may change):<br><br>
 
At this stage, you should have something looking like that (IP addresses may change):<br><br>
 
[[Image:BoardConnection.png]]
 
[[Image:BoardConnection.png]]
  
−
==Connection Setup==
+
==RS232 Terminal configuration==
−
A Terminal emulator (for RS232 link) and a TFTP server (for Ethernet link) have to be configured, depending on your Host operating system:
+
You will need a RS232 terminal emulator to communicate with U-Boot/Linux console. You can choose between:
−
* '''Linux''': [[Connection with U-Boot on Linux|configuring RS-232 and TFTP on a Linux Host to communicate with your board]]
+
* [[Kermit]]
−
* '''Window$''': [[Windows uBoot Connection | configuring RS-232 and TFTP on a Window$ Host to communicate with your board]]
+
* Minicom
 +
* GtkTerm
 +
We suggest you to use [[Kermit]] as Terminal emulator for RS232 connection. Minicom was sadly reported to have problems when communicating with U-Boot (ZModem data transfer).
 +
If you just need a simple serial console and not to transfer data through RS232, then '''GTKTerm''' is the perfect choice ! (package gtkterm in Ubuntu)
 +
{{Note|Your terminal should be configured with: '''115200 bauds 8N1''' parameters}}
 +
 
 +
==TFTP server==
 +
In order to send your image files (U-Boot, Linux, rootfs or FPGA's firmware) at higher speed to your Armadeus board, you can use the Ethernet link and [http://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol a TFTP server].
 +
Once the server started, the files located in the server shared directory (''/tftpboot'' by default) will be accessible from the U-Boot/Linux TFTP clients.
 +
 
 +
===TFTP server installation=== 
 +
* On *Ubuntu / Debian:
 +
<pre class="host">
 +
  [  ] $ sudo apt-get install tftpd xinetd
 +
</pre>
 +
or use Synaptic<br>
 +
* On Fedora:
 +
<pre class="host">
 +
  [  ] $ rpm -q tftpd xinetd
 +
</pre>
 +
 
 +
* Then create the directory that will contain all the files that the server will export (you have to be root to do that):
 +
<pre class="host">
 +
  [  ] $ sudo mkdir /tftpboot
 +
  [  ] $ sudo chmod 777 /tftpboot
 +
</pre>
 +
 
 +
===Server configuration=== 
 +
* Edit or create the configuration file ''/etc/xinetd.d/tftp'' and modify/add it the following lines:
 +
# default: off
 +
# description: The tftp server serves files using the trivial file transfer
 +
#      protocol.  The tftp protocol is often used to boot diskless
 +
#      workstations, download configuration files to network-aware printers,
 +
#      and to start the installation process for some operating systems.
 +
service tftp
 +
{
 +
        socket_type            = dgram
 +
        protocol                = udp
 +
        wait                    = yes
 +
        user                    = root
 +
        server                  = /usr/sbin/in.tftpd
 +
        server_args            = -s /tftpboot
 +
#      disable                = yes
 +
}
 +
 +
* Restart xinetd service:
 +
<pre class="host">
 +
  [  ] $ sudo killall -HUP xinetd
 +
</pre>
 +
* Put some files in ''/tftpboot''
 +
* To test it from U-Boot (if you already have the correct IP addresses, otherwise [[Target_Software_Installation#Configure_U-Boot|continue with Setup Basics here]]):
 +
<pre class="apf">
 +
BIOS> tftp ${fileaddr} apf9328-linux.bin
 +
MAC: 00:1e:ac:00:00:01
 +
operating at 100M full duplex mode
 +
TFTP from server 192.168.0.17; our IP address is 192.168.0.10
 +
Filename 'apf9328-linux.bin'.
 +
Load address: 0x8000000
 +
Loading: #################################################################
 +
        ######################################################
 +
done
 +
Bytes transferred = 1604984 (187d78 hex)
 +
BIOS>
 +
</pre>
 +
 
 +
==Links==
 +
* [http://www.columbia.edu/kermit/ Kermit Homepage]
 +
* [http://www.jls-info.com/julien/linux/ GTKTerm Homepage]
 +
* http://doc.ubuntu-fr.org/tftpd
 +
* '[[Windows uBoot Connection | configuring RS-232 and TFTP on Windows to communicate with your board]]

Revision as of 23:33, 2 March 2009

How-To connect your Armadeus board to your development Host.

Forewords

The default connection uses a simple RS232 Null-Modem cable (with or without USB<->serial adapter).
As you will have to transfer some mega bytes of data, the Ethernet link is mandatory.
In order to use these two media with the APF target a terminal emulator (for RS232 link) and a TFTP server (for Ethernet link) have to be configured.

At this stage, you should have something looking like that (IP addresses may change):

BoardConnection.png

RS232 Terminal configuration

You will need a RS232 terminal emulator to communicate with U-Boot/Linux console. You can choose between:

We suggest you to use Kermit as Terminal emulator for RS232 connection. Minicom was sadly reported to have problems when communicating with U-Boot (ZModem data transfer). If you just need a simple serial console and not to transfer data through RS232, then GTKTerm is the perfect choice ! (package gtkterm in Ubuntu)

Note Note: Your terminal should be configured with: 115200 bauds 8N1 parameters


TFTP server

In order to send your image files (U-Boot, Linux, rootfs or FPGA's firmware) at higher speed to your Armadeus board, you can use the Ethernet link and a TFTP server. Once the server started, the files located in the server shared directory (/tftpboot by default) will be accessible from the U-Boot/Linux TFTP clients.

TFTP server installation

  • On *Ubuntu / Debian:
  [  ] $ sudo apt-get install tftpd xinetd

or use Synaptic

  • On Fedora:
  [  ] $ rpm -q tftpd xinetd
  • Then create the directory that will contain all the files that the server will export (you have to be root to do that):
  [  ] $ sudo mkdir /tftpboot
  [  ] $ sudo chmod 777 /tftpboot

Server configuration

  • Edit or create the configuration file /etc/xinetd.d/tftp and modify/add it the following lines:
# default: off
# description: The tftp server serves files using the trivial file transfer
#       protocol.  The tftp protocol is often used to boot diskless
#       workstations, download configuration files to network-aware printers,
#       and to start the installation process for some operating systems.
service tftp
{
       socket_type             = dgram
       protocol                = udp
       wait                    = yes
       user                    = root
       server                  = /usr/sbin/in.tftpd
       server_args             = -s /tftpboot
#       disable                 = yes
}
  • Restart xinetd service:
  [  ] $ sudo killall -HUP xinetd

BIOS> tftp ${fileaddr} apf9328-linux.bin
MAC: 00:1e:ac:00:00:01
operating at 100M full duplex mode
TFTP from server 192.168.0.17; our IP address is 192.168.0.10
Filename 'apf9328-linux.bin'.
Load address: 0x8000000
Loading: #################################################################
         ######################################################
done
Bytes transferred = 1604984 (187d78 hex)
BIOS>

Links

Retrieved from "http://armadeus.org/wiki/index.php?title=Communicate&oldid=6001"