Experimental Physics and
Industrial Control System

Robert Willson <[email protected]> · Fri, 10 Nov 2000 19:32:56 -0500 (EST)

I am attempting to send commands through the EPICS GPIB interface with the
GpibInteract program.  An error is returned by the 'sysLocalToBusAdrs'
function in drvGpib.c, and I show the output of the GpibInteract program 
below.  The system was tested with a separate EPICS version (3.12.2) and
functioned fine.  I am using version 3.13.2.

Thanks,

Robert Willson
[email protected]

Output from GpibInteract, running on MVME167 with VxWorks v.5.3

Enter Message # to Send (1 thru 5) > 1
0x7aefc8 (tShell): niGpibIoctl(0, 8, 0, 00000000)
0x7aefc8 (tShell): niGpibIoctl(0, 9, 0, 007067FC)
0x7aefc8 (tShell): qgpibreq(0x007067DC, 2): transaction queued
0x5bf200 (ib-00): niSrqIntDisable(0): ch0.csr = 0x01, gsr=0xFFFFFFFF
0x5bf200 (ib-00): ibLinkTask(5, 0): got an event
0x5bf200 (ib-00): ibLinkTask(5, 0): got Hi Pri xact, pnode= 0x007067DC
0x5bf200 (ib-00): GI's gpibWork() was called for command >hvon<
0x5bf200 (ib-00): writeIb(0071A888, 5, 0x00706809, 4, 30)
0x5bf200 (ib-00): writeIbCmd(0071A888, 005BF17E, 4)
0x5bf200 (ib-00): niGpibCmd(0, 0x005BF17E, 4): command string >q
                                                                <
0x5bf200 (ib-00): niGpibWrite(0, 0x00706809, 4, 30)
0x5bf200 (ib-00): writeIbCmd(0071A888, 005BF17E, 2)
0x5bf200 (ib-00): niGpibCmd(0, 0x005BF17E, 2): command string >q
                                                                <
0x5bf200 (ib-00): niSrqIntEnable(0): ch0.csr = 0x01, gsr=0xFFFFFFFF

Message #1 : LinkType=5 bug=0 Link=0 Adrs=5 Type=w
Cmd: 00: 68 76 6F 6E                                          *hvon*
Res: 00: 47 50 49 42 20 54 49 4D 45 4F 55 54 20 28 77 68      *GPIB
TIMEOUT (wh*     10: 69 6C 65 20 74 61 6C 6B 69 6E 67 29
*ile talking)*

---------------------------------------------------------------------

It looks like there is a problem in passing strings, niGpibCmd should
print ?_%@ as its command string.  

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System