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docs: x4xx: Update information on CPLD updating

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Martin Braun 2021-07-07 17:23:16 +02:00 committed by Martin Braun
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11
host/docs/usrp_x4xx.dox
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@ -539,11 +539,22 @@ Otherwise, let the boot continue as normal.
<b>Caution! Updating the motherboard CPLD has the potential to brick your
device if done improperly.</b>
After updating the filesystem, you may have to update your motherboard CPLD. If
you forget to update the CPLD, MPM will fail to fully initialize and emit a
warning. This is not critical, and the CPLD update can be performed later by
following these same steps, but the device will not be usable until then.
Even though the CPLD may not require updating, it is recommended to always run
these steps for a consistent update procedure.
You can update the motherboard (MB) CPLD by running the following command on
the X410:
x4xx_update_cpld --file=<path to cpld-x410.rpd>
Note: Old filesystems may not contain this command. If you are performing a
mender update, simply run these commands after the update.
Filesystems will usually contain a compatible `cpld-x410.rpd` file at
`/lib/firmware/ni/cpld-x410.rpd`. If you're installing a new filesystem via
mender, you may have to mount the new filesystem (before you boot into it) in

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host/docs/zbx.dox
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@ -420,6 +420,10 @@ The "software defined" mode can be enabled for the DSA tables by using the
\section zbx_updating_cpld Updating the ZBX CPLD
Note: You may need to update the ZBX CPLD after updating filesystems. If an
update is required, MPM will fail to initialize, and provide a corresponding
error message.
If you need to update the ZBX CPLD, you can do so by running the following command
on the device:
@ -436,6 +440,21 @@ By default, the `cpld-zbx.rpd` file will be provided at
`/lib/firmware/ni/cpld-zbx.rpd`. Note that after downloading the ZBX CPLD, you
will need to completely shut down and power-cycle the device.
If you are updating the image during a filesystem update, i.e., after installing
the new filesystem with Mender, but before rebooting, you will need to mount
the new filesystem first and copy the image over:
mkdir /mnt/other
mount /dev/mmcblk0p3 /mnt/other
cp /mnt/other/lib/firmware/ni/cpld-zbx.rpd ~
umount /mnt/other
Note that the other filesystem may be either `/dev/mmcblk0p2` or `/dev/mmcblk0p3`.
You can now update to the new CPLD image:
zbx_update_cpld --file=~/cpld-zbx.rpd
\subsection zbx_updating_cpld_details CPLD Programming: Details
Read this section if you want to create your own ZBX CPLD image, or require more