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<== Date ==> <== Thread ==>

Subject: RE: asynAddress, asynPortDriver maxAddr, and addr in setXXXParam
From: Mark Rivers <[email protected]>
To: "'Emmanuel Mayssat'" <[email protected]>, "[email protected]" <[email protected]>
Date: Fri, 5 Apr 2013 00:28:58 +0000

> My understanding of maxAddr is that the parameter library is an array of param lists x maxAddr

 

That is correct.

 

> So if I set the asynAddress to a value between 0 and maxAddr, I should be able to 'browse' the whole parameter library.

 

That is correct.

 

Did you set the ASYN_MULTIDEVICE bit in the “asynFlags” parameter in your call to the asynPortDriver base class constructor?

 

Mark

 

 

From: [email protected] [mailto:[email protected]] On Behalf Of Emmanuel Mayssat
Sent: Thursday, April 04, 2013 7:14 PM
To: [email protected]
Subject: asynAddress, asynPortDriver maxAddr, and addr in setXXXParam

 

My understanding of maxAddr is that the parameter library is an array of param lists x maxAddr

So if I set the asynAddress to a value between 0 and maxAddr, I should be able to 'browse' the whole parameter library.

 

In other words, 2 records with the INP field as 

 field(INP,  "@asyn(asynPort,1,$(asynTimeout))REASON")    <-- asynAddress = 1

and
 field(INP,  "@asyn(asynPort,2,$(asynTimeout))REASON")

and with 

 field(PINI, "1")

should immediately read different values.

 

A quick test with 

/* setDoubleParam(0, P_Reason, 1.0) */

setDoubleParam(1, P_Reason, 2.0)

setDoubleParam(2, P_Reason, 3.0)

in asynPortDriver constructor and after firing up the ioc, both of the records want to read the address 0.

 

Are those addresses related? What am i missing?

 

--

Emmanuel

 


Replies:
RE: asynAddress, asynPortDriver maxAddr, and addr in setXXXParam Mark Rivers
References:
asynAddress, asynPortDriver maxAddr, and addr in setXXXParam Emmanuel Mayssat

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