Experimental Physics and
Industrial Control System

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

Subject:	Re: multiple USB devices in Asyn
From:	"Siddons, David via Tech-talk" <tech-talk at aps.anl.gov>
To:	Mark Rivers <rivers at cars.uchicago.edu>
Cc:	"tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
Date:	Tue, 8 Dec 2020 21:19:11 +0000

Hi Mark, I just did "asynReport" on the runnogn IOC and got this:

epics> asynReport

IP1 multiDevice:No canBlock:Yes autoConnect:Yes

Serial line /dev/ttyUSB0: Connected

IP2 multiDevice:No canBlock:Yes autoConnect:Yes

Serial line /dev/ttyUSB1: Connected

ALM1 multiDevice:Yes canBlock:Yes autoConnect:Yes

Port: ALM1

ALM2 multiDevice:Yes canBlock:Yes autoConnect:Yes

Port: ALM2

So it seem ALM2 exists. So I don't understand the message.

Pete.

From: Mark Rivers <rivers at cars.uchicago.edu>
Sent: Tuesday, December 8, 2020 3:52 PM
To: Siddons, David <siddons at bnl.gov>
Cc: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: RE: multiple USB devices in Asyn

Can you send the complete output when you start the IOC?

From: Siddons, David <siddons at bnl.gov>
Sent: Tuesday, December 8, 2020 2:49 PM
To: Mark Rivers <rivers at cars.uchicago.edu>
Cc: tech-talk at aps.anl.gov
Subject: Re: multiple USB devices in Asyn

Hi Mark,

Here is the code. I tried to send the whole IOC, but your mailer rejected it.

Pete.

From: Mark Rivers <rivers at cars.uchicago.edu>
Sent: Tuesday, December 8, 2020 2:36 PM
To: Siddons, David <siddons at bnl.gov>
Cc: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: RE: multiple USB devices in Asyn

Hi Pete,

Where is the source code containing this driver?

almCreateEZ4Controller("ALM1", "IP1", "$(ALM_ADDR1)", 4, 200, 500)

Mark

From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of Siddons, David via Tech-talk
Sent: Tuesday, December 8, 2020 1:13 PM
To: tech-talk at aps.anl.gov
Subject: multiple USB devices in Asyn

I have a setup with two identical USB devices. They connect as ttyUSB0 and ttyUSB1. I tried to set up an asyn interface using the following commands:

drvAsynSerialPortConfigure("IP1", "/dev/ttyUSB0", 0, 0, 0)

asynSetOption("IP1", -1, "baud", "115200")

asynSetOption("IP1", -1, "bits", "8")

asynSetOption("IP1", -1, "parity", "none")

asynSetOption("IP1", -1, "stop", "1")

asynSetOption("IP1", -1, "clocal", "Y")

asynSetOption("IP1", -1, "crtscts", "N")

drvAsynSerialPortConfigure("IP2", "/dev/ttyUSB1", 0, 0, 0)

asynSetOption("IP2", -1, "baud", "115200")

asynSetOption("IP2", -1, "bits", "8")

asynSetOption("IP2", -1, "parity", "none")

asynSetOption("IP2", -1, "stop", "1")

asynSetOption("IP2", -1, "clocal", "Y")

asynSetOption("IP2", -1, "crtscts", "N")

# almCreateController(AllMotion port name, asyn port name, board address,

# Number of axes, Moving poll period (ms), Idle poll period (ms))

almCreateEZ4Controller("ALM1", "IP1", "$(ALM_ADDR1)", 4, 200, 500)

almCreateEZ4Controller("ALM2", "IP2", "$(ALM_ADDR2)", 4, 200, 500)

This fails, saying port ALM2 cannot be found. If I try to connect the second one also to ALM1, it complains that ALM1 is already registered.

If I comment out the first device, the second one (with port ALM2) comes up fine. How should I be doing this?

Pete.

References:: multiple USB devices in Asyn Siddons, David via Tech-talk; RE: multiple USB devices in Asyn Mark Rivers via Tech-talk; Re: multiple USB devices in Asyn Siddons, David via Tech-talk; RE: multiple USB devices in Asyn Mark Rivers via Tech-talk

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ANJ, 08 Dec 2020

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System