e3-ecmcPlugin_FFT

ESS Site-specific EPICS module : ecmcPlugin_FFT

A shared library with FFT functionalities loadable into ecmc: https://github.com/epics-modules/ecmc (or local ess fork https://github.com/icshwi/ecmc). Configuration is made through ecmccfg: https://github.com/paulscherrerinstitute/ecmccfg (ot local ess fork https://github.com/icshwi/ecmccfg)

Load FFT module in ecmc:

 epicsEnvSet(ECMC_PLUGIN_FILNAME,"/epics/base-7.0.3.1/require/3.1.2/siteMods/ecmcPlugin_FFT/master/lib/linux-arm/libecmcPlugin_FFT.so")
 epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ax1.actpos;")
 ")  # Enable printouts from plugin
 ${SCRIPTEXEC} ${ecmccfg_DIR}loadPlugin.cmd, "PLUGIN_ID=0,FILE=${ECMC_PLUGIN_FILNAME},CONFIG='${ECMC_PLUGIN_CONFIG}', REPORT=1"
 epicsEnvUnset(ECMC_PLUGIN_FILNAME)
 epicsEnvUnset(ECMC_PLUGIN_CONFIG)

Define SOURCE

The data source is defined by setting the SOURCE option in the plugin configuration string. Example: Axis 1 actpos

epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ax1.actpos;")

Example: Ethercat slave 1 analog input ch1

epicsEnvSet(ECMC_PLUGIN_CONFIG,"DBG_PRINT=1;SOURCE=ec0.s1.AI_1;")