Experimental Physics and
Industrial Control System

Ned Arnold <[email protected]> · Thu, 15 Apr 1999 10:38:00 -0500 (CDT)

Is this the first A24 device you have used with your particular build
of the board support for the MVME177? Perhaps the board support is
not properly mapping the A24 VME space to CPU address 0xF0000000 and above 
(where the AB driver expects it to be).

The scanner's A24 address should be set to 0xC00000. With the 167 board
support, this shows up at the CPU address of 0xF0C00000 (which shows up in the
error messages).

Test :

Boot vxWorks and then enter   m 0xF0C0000   . If you get a bus error, the
address mapping is not properly configured and the AB scanner will not
be recognized.

	Ned

> From [email protected] Thu Apr 15 10:26:39 1999
> From: "John K.J. Dong" <[email protected]>
> To: "EPICS Tech-Talk" <[email protected]>
> Subject: Allen Bradley 6008-SV2R/MVME177 Compatibility
> Date: Thu, 15 Apr 1999 11:26:54 -0400
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> <DIV><FONT size=3>Is anyone using an Allen Bradley 6008-SV2R VME Scanner 
Module 
> with the Motorola MVME177?</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3>The VME Scanner was verified to be working with an MVME167 
by 
> an exceptionally helpful bunch at Argonne.</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3>The IOC hangs during iocInit.&nbsp; I went into the drvAb.c 
> source and put in various traces and found the following:</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3><BR>&gt; drvAb: init()<BR>&gt; drvAb: ab_driver_init<BR>&gt; 
> drvAb:&nbsp; ab_driver_init PASSED devRegisterAddress<BR>&gt; drvAb:&nbsp; 
> ab_driver_init PASSED devConnectInterrupt<BR>&gt; drvAb:&nbsp; ab_driver_init 
> PASSED devEnableInterrupt<BR>&gt; drvAb: link_init<BR>&gt; drvAb: link 0, 
> powerup...<BR>&gt; drvAb: link_init, plink-&gt;vme_addr=F0C00000<BR>&gt; 
drvAb: 
> link_init, p6008-&gt;sc_intr=F0C00FFC<BR>&gt; sc_lock<BR>&gt; drvAb: 
sc_waitcmd, 
> plink-&gt;vme_addr=F0C00000<BR>&gt; sc_waitcmd<BR>&gt; drvAb: sc_waitcmd, 
> plink-&gt;ab_cmd_sem: 1EA382C&nbsp; timeout: 60</FONT></DIV>
> <DIV><BR><FONT size=3>The IOC hangs when executing this line of c-code in the 
> sc_waitcmd function -</FONT></DIV>
> <DIV><FONT size=3>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; status = 
> semTake(plink-&gt;ab_cmd_sem,sysClkRateGet());</FONT><FONT 
> size=3><BR><BR></DIV></FONT>
> <DIV>&nbsp;</DIV>
> <DIV>We are running EPICS release R3.13.0.beta11 </DIV>
> <DIV>&nbsp;&nbsp; under Solaris 2.5.1 with a SUN ULTRA 30.</DIV>
> <DIV>&nbsp;</DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT size=3>John K.J. Dong; E-Mail: <A 
> href="mailto:[email protected]";>[email protected]</A>; Pager: %315</FONT></DIV>
> <DIV>&nbsp;</DIV>
> <DIV><FONT 
> 
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> sp;&nbsp; 
> Work:&nbsp; Princeton Plasma Physics 
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System