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<== Date ==> <== Thread ==>
Subject: Re: ASYN command string with null character
From: Eric Norum <[email protected]>
To: "Bruins, Stefan" <[email protected]>
Cc: "'Marty Kraimer'" <[email protected]>, "'[email protected]'" <[email protected]>
Date: Tue, 29 Nov 2005 08:22:02 -0600
If you're using the devGpib ASYN support you can create such messages merely by providing a custom 'convert' routine.  The tutorial at
shows how to do this.  If your convert routine returns a non-zero value the devSupportGpib.c code will use that value as the length of the message to send. 


On Nov 29, 2005, at 7:47 AM, Bruins, Stefan wrote:

I presume this change has to be made in the "devSupportGpib.c" file of the
asyn driver in the function "writeIt"? Will a make of the ASYN module be
sufficient or must I run the makeSupport command a second time (this may be
a stupid question but I'm pretty new to EPICS/ASYN etc...)

-----Oorspronkelijk bericht-----
Van: Marty Kraimer [mailto:[email protected]]
Verzonden: dinsdag 29 november 2005 14:27
Onderwerp: Re: ASYN command string with null character


Bruins, Stefan wrote:

For the building of device support through the ASYN driver I have to sent a
message with a null character inside. The problem is that the driver
terminates the string at this null character according to the C++ standard.
My question is, how am I able to overcome this problem?

Stefan Bruins



You have to call  pasynOctet->writeRaw instead of pasynOctet->write.

Marty Kraimer

-- 

Eric Norum <[email protected]>

Advanced Photon Source

Argonne National Laboratory

(630) 252-4793



References:
RE: ASYN command string with null character Bruins, Stefan
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