Building Base

Prior to building EPICS, some modifications are required to reflect ING's environment. Once these changes have been done, a normal build procedure should be followed.

Note all these changes have been done for R3.13.1

• Sitewide configuration:

  This is standard procedure, one needs to edit the config file to reflect the ING internal path setting. The files that need editing are (R3.13.1)

  • file: base/config/CONFIG_SITE
  • file: base/config/CONFIG_HOST_ARCH.UnixCommon
  • file: base/config/CONFIG_SITE.Host.solaris

• 8 axis support for stepperMotor record:

  ING requires support for 8 axis (rather than 6) on the OMS-VME8 stepperMotor record (cf. Wyffos/CU application). The changes are pretty straightforward.

  • file: base/src/dev/omsDev/devSmOms6Axis.c

    modifications:

    devSmOms6Axis={
    
                   8,          <<<<<<<< instead of 6
    
                   NULL,
    
                   NULL,
    
                   NULL,
    
                   NULL,
    
                   sm_command};

  • file: base/src/drv/old/drvOms.c:
    
    modifications = add two entry named R and S:

    char    oms_motor_specifier[MAX_OMS_CHANNELS+1] = {'X','Y','Z','T','U','V','R','S'};

• High Scan rates:

  This requirement arises from the ISISP application.

  • file:  base/db/menuScan.dbd modifications: add the following entries
    
    choice(menuScan_05_second,".05 second")
    
    choice(menuScan_01_second,".01 second")
    
    choice(menuScan_005_second,".005 second")
    
    Important note:
    
    To actually support these scan rates, the system clock of the VME needs to be changed (the rate cannot be higher than the clock tick setting). But for Isisp (that use .01), this change is not necessary and the default clock has been left to avoid un-necessary possible overload).
    
    Note that for Isisp itself, the previous release (R3.12) did not make this change, hence was actually using a scan rate of 60 Hz rather than the expected 100 Hz coded in the database.

• driver support:

  Note the epics documentation is not clear about this usage, but this should be part of the `standard configuration routine`.
  
  Also note this stuff could be done dynamically be redefining the global symbol in question BEFORE iocInit.
  
  Another last option is to compile the module_type.c and run it before iocInit.
  
  (There is a thread about the subject in TechTalk).

  Anyway, since ING use a very limited set of hardware, the change is pretty simple. Hardware that needs support are:-

  • xycom 240 (ingrid x1 - wyffos x3 - integral x2 - isispx)
  • xycom 220 (wyffos x2 -)
  • OMS-VME8/44 (ingrid x1 - wyffosCU x1 - integral x2 - isispx)
  • xycom566 (wyffos x1)

  file: base/src/include/module_types.h

  mods: change the definitions for bi_num_cards and bo_num_cards etc.

© 2004 by Issac Newton Group - email Epics Software Manager All rights reserved.

Last modified: Mon Feb 23 14:50:14 WET 2004