Experimental Physics and
Industrial Control System

"Luchini, Kristi L." <[email protected]> · Thu, 6 Mar 2014 12:38:01 -0800

Hello,

When upgrading an IOC application to the new MAXv  model-3 driver, using motor-R6-8 , I got an error when
calling the initialization function  omxMAXvConfig2()  from an RTEMS IOC running Cexp.

> omsMAXvConfig2(2, "A16", 0xF000, 200, 5, "MAXv-01", 8, 0, 0, 100, 
> 500, "AX LH PSO;") Cexp syntax error: Too many integer arguments

Mitch D'Ewart at SLAC discovered that  the problem seemed to be a 
a Cexp issue, which sets a limit of 10 arguments for function calls, and omsMAXvConfig2 uses 12. 
However, when running this function inside iocsh() it works fine.

epics> omsMAXvConfig2(2, "A16", 0xF000, 200, 5, "MAXv-01", 8, 0, 0, 100, 
epics> 1000, "BD00FF; AX LTH LMH PSM; AY LTH LMH PSE; AZ LTH LMH PSE
epics> ECA24,500000;")
Reading OMS Firmware Version:
(1)	OMS Firmware Version is: /MAXv-8000 ver:1.44, s/n:001457, FPGA:B6:A7 BOOT:1.3 - Oregon Micro Systems 

IOC Details: 
motor-R6-8  motor module using OmsAsyn
asyn-R4-12
EPICS R4-14-12
RTEMS-4.9.4  for MVME6100 w/Cexp().

Similar tech talk but for VxWorks shell
http://www.aps.anl.gov/epics/tech-talk/2011/msg00709.php

- Regards,
  Kristi 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System