43 lines
1.5 KiB
Markdown
43 lines
1.5 KiB
Markdown
e3-ecmcPlugin_FFT
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======
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ESS Site-specific EPICS module : ecmcPlugin_FFT
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This module is a work in progress and is not functional yet.
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A shared library with FFT functionalities loadable into ecmc:
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https://github.com/epics-modules/ecmc (or local ess fork https://github.com/icshwi/ecmc).
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Configuration is made through ecmccfg:
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https://github.com/paulscherrerinstitute/ecmccfg (ot local ess fork https://github.com/icshwi/ecmccfg)
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## Load FFT plugin in ecmc:
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A plugin is loaded by the ecmccfg command loadPlugin:
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https://github.com/anderssandstrom/ecmccfg/blob/master/scripts/loadPlugin.cmd
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Example:
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```
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epicsEnvSet(ECMC_PLUGIN_FILNAME,"/epics/base-7.0.3.1/require/3.1.2/siteMods/ecmcPlugin_FFT/master/lib/linux-arm/libecmcPlugin_FFT.so")
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epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ax1.actpos;")
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${SCRIPTEXEC} ${ecmccfg_DIR}loadPlugin.cmd, "PLUGIN_ID=0,FILE=${ECMC_PLUGIN_FILNAME},CONFIG='${ECMC_PLUGIN_CONFIG}', REPORT=1
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epicsEnvUnset(ECMC_PLUGIN_FILNAME)
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epicsEnvUnset(ECMC_PLUGIN_CONFIG)
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```
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### Define SOURCE
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The data source is defined by setting the SOURCE option in the plugin configuration string.
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Example: Axis 1 actpos
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```
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epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ax1.actpos;")
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```
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Example: Ethercat slave 1 analog input ch1
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```
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epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ec0.s1.AI_1;")
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```
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### Enable disable printouts
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Enable/disable printouts from plugin can be made bu setting the "DBG_PRINT" option.
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Exmaple: Disable
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```
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epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=0;SOURCE=ax1.actpos;")
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