acrn-hypervisor/doc/tutorials/using_serial_port.rst
David B. Kinder 54975e4629 doc: remove docs referencing Clear Linux
ACRN 2.1 supports two virtual boot modes, deprivilege boot mode and
direct boot mode. The deprivilege boot mode’s main purpose is to support
booting Clear Linux Service VM with UEFI service support, but this
brings scalability problems when porting ACRN to new Intel platforms.
For the 2.2 release, deprivilege mode is removed, and only direct boot
is supported, and with this we've removed support for Clear Linux as the
service VM, which impacts over 50 ACRN documents.  This PR removes
documents we don't intend to update, and fixes broken links that would
occur from references to these deleted docs.

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2020-09-01 11:46:41 -07:00

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.. _connect_serial_port:
Using the Serial Port on KBL NUC
================================
You can enable the serial console on the
`KBL NUC <https://www.amazon.com/Intel-Business-Mini-Technology-BLKNUC7i7DNH1E/dp/B07CCQ8V4R>`_
(NUC7i7DNH). The KBL NUC has a serial port header you can
expose with a serial DB9 header cable. (The NUC has a punch out hole for
mounting the serial connector.)
.. figure:: images/NUC-serial-port.jpg
KBL NUC with populated serial port punchout
You can `purchase
<https://www.amazon.com/dp/B07BV1W6N8/ref=cm_sw_r_cp_ep_dp_wYm0BbABD5AK6>`_
such a cable or you can build it yourself;
refer to the `KBL NUC product specification
<https://www.intel.com/content/dam/support/us/en/documents/mini-pcs/nuc-kits/NUC7i7DN_TechProdSpec.pdf>`_
as shown below:
.. figure:: images/KBL-serial-port-header.png
:scale: 80
KBL serial port header details
.. figure:: images/KBL-serial-port-header-to-RS232-cable.jpg
:scale: 80
KBL `serial port header to RS232 cable
<https://www.amazon.com/dp/B07BV1W6N8/ref=cm_sw_r_cp_ep_dp_wYm0BbABD5AK6>`_
You'll also need an `RS232 DB9 female to USB cable
<https://www.amazon.com/Adapter-Chipset-CableCreation-Converter-Register/dp/B0769DVQM1>`_,
or an `RS232 DB9 female/female (NULL modem) cross-over cable
<https://www.amazon.com/SF-Cable-Null-Modem-RS232/dp/B006W0I3BA>`_
to connect to your host system.
Note that If you want to use the RS232 DB9 female/female cable, choose
the **cross-over** type rather than **straight-through** type.