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Appendix: System Setup
======================
Serial Console Access
---------------------
As most current development machines don't have serial ports, the usual setup
is to use a USB-Serial-Converter. Some evaluation boards have such a converter
on board. After connecting, these usually show up on your host as
``/dev/ttyUSB#`` or ``/dev/ttyACM#`` (check ``dmesg`` to find out).
On Debian systems, the device node will be accessible to the ``dialout`` group,
so adding your user to that group (``adduser <user> dialout``) removes the need
for root privileges.
Using the "screen" program
^^^^^^^^^^^^^^^^^^^^^^^^^^
The terminal manager ``screen`` can also be used as a simple terminal emulator::
screen /dev/ttyUSB0 115200
To exit from ``screen``, press ``<CTRL-A> <K> <y>``.
Using the "microcom" program
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
A good alternative terminal program is microcom. On Debian it can be installed
with ``apt-get install microcom``, on other distributions it can be installed
from source:
http://git.pengutronix.de/?p=tools/microcom.git;a=summary
Usage is simple::
microcom -p /dev/ttyUSB0
Network Access
--------------
Having network connectivity between your host and your target will save you a
lot of time otherwise spent on writing SD cards or using JTAG. The main
protocols used with barebox are DHCP, TFTP and NFS.
Configuration of dnsmasq for DHCP and TFTP
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The ``dnsmasq`` program can be configured as a DHCP and TFTP server in addition
to its original DNS functionality::
sudo ip addr add 192.168.23.1/24 dev <interface>
sudo ip link set <interface> up
sudo /usr/sbin/dnsmasq --interface=<interface> --no-daemon --log-queries \
--enable-tftp --tftp-root=<absolute-path-to-your-images>/ \
--dhcp-range=192.168.23.240,192.168.23.250
Configuration of a TFTP Server
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Configuration of a BOOTP / DHCP Server
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Configuring a NFS Server
^^^^^^^^^^^^^^^^^^^^^^^^
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