Guralp Systems CMG-DCM build <10,000 User Manual

Page 231

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Acquisition Modules and Platinum Firmware

Monitoring Operations

14.3.3.2 Upgrading from the command line

The dm24-upgrade command can be used to update the firmware of attached

DM24 and CD24 digitisers. When invoked without arguments, it displays a
detailed usage message.

When invoked with the name of a port (e.g. Port   A or PortA) as an
argument, the command will identify the type of attached digitiser and the

current firmware revision and will upgrade it if necessary. For example, the
command

dm24-upgrade PortA

will upgrade the firmware of the digitiser attached to Port A of the acquisition
module, if necessary. The latest digitiser firmware for each type of digitiser is

included in the Platinum distribution so no Internet connection is necessary.

Note: The currently-loaded DSP firmware version is identified from

the label that was entered when the firmware was last upgraded.
Because this label is not checked, any text could have been entered,

which may confuse the upgrade command. If this is the case, please
use the –force option, described below, to over-ride the version

checking.

For more advanced uses, the following options are available. Multiple options
can be separated by spaces and the command should always end with a port

specifier. This can be in the form Port A or PortA or /dev/ttyS0 (the
Linux port name).

­­trashfram

Performs a hard factory reset on a CMG-DM24 digitiser. Note that
the values of all configuration parameters will be lost. Some of the

following options allow basic reconfiguration following the reset.

­­ids sys ser

A hard reset will normally erase the system ID and serial number of

the digitiser. The dm24­upgrade command, when invoked with
­­trashfram, attempts to discover these values and reinstate them

after the reset. This option allows you to specify new values for the
system ID and serial number to be used instead of the discovered

values. The argument sys specifies the new System ID to use and
the argument ser specifies the serial number.

­­samp # # # #

This argument allows you to specify new sample speeds to set for the
decimation filter chain. This argument requires requires four

numerical values to be supplied using the same format as for the

MAN-EAM-0003

231

Issue E - February 2014

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