The easiest way to load a program image into the PXS is to use TFTP. Linux comes
with a TFTP daemon which is typically run by xinetd
. (TFTP servers are
also available for Windows.) Both the TFTP daemon
and xinetd
are installed by default on most Linux distributions.
To enable TFTP, simply place a file called
tftp in the /etc/xinetd.d
directory with the following contents:
service tftp { socket_type = dgram protocol = udp wait = yes user = root server = /usr/sbin/in.tftpd server_args = -s /usr/home/tftp disable = no }
This assumes that /usr/home/tftp is a directory which is world readable and that all the files in it are world readable as well. This is the directory to which program images need to be copied to be downloadable via TFTP.
After installing the configuration file, restart xinetd
so it will
reread its configuration thus enabling the TFTP server:
# su Password: # ps -A | grep xinetd 950 ? 00:00:02 xinetd # kill -s SIGUSR2 950 # exit # tftp localhost tftp> quit #
If you set a variable called TFTPHOME
in your environment
to this directory, the make
target for pdkhello.bin
will automatically include a command to copy the resulting file to that directory.
You can also set the address of your TFTP server in the PXS using the tftp
RedBoot command. Then, from the RedBoot prompt, you can load and execute the program image with the commands:
RedBoot> load -r pdkhello.bin Loading from default TFTP server: 192.168.250.2 Defaulting to entry point of 0x00000000. Raw load done: 429788 bytes read Address range: 00000000-00068edc, Entry point: 00000000, RedBoot> go