Minicom Advanced Systems CMG-DCM manual Firmware

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CMG-DCM

ipkg remove gsl-backdoor

to remove the package. This will not affect the operation of the system in any other way; however, it may prevent Gü ralp Systems' engineers from being able to assist you in the event of problems.

ipkg can also be used for other package management tasks; however, if you remove software from the DCM, or replace packages with versions

incompatible with the rest of the system, you risk leaving the unit in an unrecoverable state. We recommend that you use only upgrade wherever possible, to ensure that you have a fully tested set of packages.

The firmware

Reinstalling the firmware from scratch is a more involved process, and you should only need to do it if the root or boot partitions of the DCM become corrupted. In this case, you can use the boot loader (which is resident in hardware) to update them. You will need a second DCM or Linux computer attached to the console port in order to do this.

Note that the firmware is not the same as the distribution. If you want to ensure that your DCM has all the latest software, you should use the upgrade command described above. Reinstalling the firmware will reset any changes you

have made to the system.

The procedure for installing new firmware depends on which revision of the DCM design you have. All recent DCM units use “MkII” firmware. If you are unsure which hardware type you are using, contact Gür alp Systems.

MkII DCM or AM

Mark II DCMs and AMs have a 256 kb bootloader, a 1 Mb kernel image and a 64 Mb file system image. Currently all surface DCM units are the Mark II design.

1.Download the latest revision of the root (and boot, if appropriate) files

from the Gü ralp Systems website at http://www.guralp.net/software/modules/DCM/

2.Obtain the flashdcm tool from the same site. This is a Linux utility which enables you to access the DCM's firmware. If you are using a second DCM, flashdcm will already be present on it.

3.Note the baud rate of the DCM's console port (115200 by default).

4.Power down the DCM.

5.On the second computer or DCM, issue the command

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Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Serial port services Network servicesSee .4, Connecting to a local network for full details Overview Installing the CMG-DCMPower supply Connecting to a single computer Connecting over a serial linkConnecting over Ethernet 192.168.0.xUsing an internal modem Connecting over USBConnecting to a local network Gcfgdbset option-namenew-value Wi-Fi Connecting to the InternetConnecting digitizers and external hardware Setting up the CMG-DCMWeb setup Setting up digitizers Using Scream DCM as a data store UsageGeneral notes Gnblocks port-number Page CMG-DCM DCM as a GCF data source Accessing the DCM command line through gcfout Sensor arrays DCM as a network data hub Communicating with digitizers Configuring digitizers Data storage and retrieval Using miniSEED format Real-time data transmission CD1.0 and CD1.1 Troubleshooting DCM installations Cannot Gcfping the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot connect to the DCMs Scream! server Can Gcfping the DCMs Scream! server, but no data appears DCM is not receiving any data streamsUse the Serial port configuration → port name Web page, or DCM is receiving streams, but they do not contain any data143032 up 34 min, load average 1.24, 1.32 Configuration options GeneralDisk CMG-DCM Serial port configuration CMG-DCM Page Network configuration Ethernet portStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Data transfer ScreamScream! Client AutoDRMCD1.0 Http serverHttp client CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Actions Data ViewerIcon bar Stream listDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Disk tools Partition, and format diskCheck disk filesystem Flush flashRecent Log Entries Disk filesCamera Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BDisk Status Flash StatusTamper lines Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Monitoring Data flowDigitizer status Tamper lines Updating the DCM Over the InternetFrom the hard disk Removing support packagesFirmware Libgconfigdb Appendix a Connector pinouts Appendix A.1 Modular DCM unitsPort a and B Data OUT portUSB connector Network connectorAppendix A.2 Integrated DCM units DM/AM module outputAppendix B Sensor and digitizer types Appendix B.1 Sensor response codesAppendix B.2 Digitizer type codes Digitizer