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

Subject: Re: How to ignore ACK character in response (motor-6-9, asyn-4-30)
From: David Vine <dvine@lbl.gov>
To: Torsten Bögershausen <torsten.bogershausen@esss.se>
Cc: tech-talk@aps.anl.gov
Date: Fri, 7 Apr 2017 21:25:38 -0700
Hi Torsten,

thanks for your help.

I was implementing this and I found this problem is already addressed in omsMAXnet.cpp line 291-293:
// cut off a leading CR, NL, /006
outString = localBuffer;
while ((*outString == 6)||(*outString == 13)||(*outString == 10)) ++outString;

I need to investigate further why this isn't working in my case.
Thanks again,
David

On Wed, Apr 5, 2017 at 10:45 PM, Torsten Bögershausen <torsten.bogershausen@esss.se> wrote:
I don't think it is possible in asyn.

(But it may be added, if someone does it ;-)

Something like this may do the trick:

diff --git a/axisApp/OmsAsynSrc/omsBaseController.cpp b/axisApp/OmsAsynSrc/omsBaseController.cpp
index 28c79289..443bb6dd 100644
--- a/axisApp/OmsAsynSrc/omsBaseController.cpp
+++ b/axisApp/OmsAsynSrc/omsBaseController.cpp
@@ -432,6 +432,10 @@ asynStatus omsBaseController::getFirmwareVersion()
         count++;
         errlogPrintf("OMS Firmware Version: %s\n", inputBuffer);
     }
+
+    if (inputBuffer[0] == '\006')
+      memmove(&inputBuffer[1], &inputBuffer[0], sizeof(inputBuffer)-1);
+
     //beta versions have a B as first letter

On 06/04/17 00:28, David Vine wrote:
Hi all,

i'm using asyn-4-30 & motor-6-9 to talk to an OMA MAXnet over ethernet.

How do I configure asyn to ignore the first character i get in the response
(which is ACK \006)? For example, the command "WY;" gets the model and serial
number:

2017/04/05 15:24:34.634 MAXnet:asyn:: nwrite=3, status=0, nawt=3
WY;
2017/04/05 15:24:34.637 MAXnet:asyn:: inlen=40, status=0, ninp=40
MAXn-A000 ver:1.49, s/n:000375, FPGA:AA
2017/04/05 15:24:34.637 MAXnet:asyn:: inlen=40, nbytesTransfered=40, ntranslate=46

Thanks in advance,
David


Relevant part of st.cmd:
# MAXnet IP
drvAsynIPPortConfigure("MAXNET","10.40.30.60:23 <http://10.40.30.60:23>",0,0,0)
# MAXnet Serial
#drvAsynSerialPortConfigure("MAXNET","/dev/ttyUSB0",0,0,0)
#asynSetOption("MAXNET",0,"baud","115200")
#asynSetOption("MAXNET",0,"bits","8")
#asynSetOption("MAXNET",0,"parity","none")
#asynSetOption("MAXNET",0,"crtscts","Y")
dbLoadRecords("$(ASYN)/db/asynRecord.db","P=MAXnet:,R=asyn:,PORT=MAXNET,ADDR=0,OMAX=0,IMAX=0")
asynSetTraceMask("MAXNET", 0, 0x23)
asynSetTraceIOMask("MAXNET", 0, 1)
#dbLoadRecords("$(TOP)/stxmApp/Db/MAXnet.db",
"PORT=MAXNET,P=MAXnet:,R=meta:,Q=io:")

asynOctetSetInputEos("MAXNET",0,"\n")
asynOctetSetOutputEos("MAXNET",0,"\n")

# omsMAXnetConfig(portName,              /* MAXnet Motor Asyn Port name */
#                 numAxes,               /* Number of axes this controller
supports */
#                  serialPortName,       /* MAXnet Serial Asyn Port name */
#                  movingPollPeriod,     /* Time to poll (msec) when an axis is
in motion */
#                  idlePollPeriod,       /* Time to poll (msec) when an axis is
idle. 0 for no polling */
#                  initString)           /* Init String sent to card */
omsMAXnetConfig("MAXNET1" , 10, "MAXNET", 100, 60000, "")




References:
How to ignore ACK character in response (motor-6-9, asyn-4-30) David Vine
Re: How to ignore ACK character in response (motor-6-9, asyn-4-30) Torsten Bögershausen

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