How to solve ADALM1000 not seen by Matlab?

Hello,

I've been trying to use the ADALM1000 so first I plugged it, I downloaded Zadig which installed WinUSB driver.

But the thing is I want to use Matlab to control the device. So I installed the Data Acquisition ToolBox in Matlab. But my device is not seen by Matlab ( by using daq.getDevices).

When I try to type "daq.createSession('adi')" it says :"The vendor 'adi' is not known. Use 'daq.getVendors()' for a list of vendors."

So I type "daq.getVendors" and I get:

Number of vendors: 2
index ID  Operational        Comment   
----- --- ----------- ------------------------
1    adi true        Analog Devices Inc.
2    ni  false      Click here for more info

I ask for properties and I get:

ID: 'adi'
FullName: 'Analog Devices Inc.'
AdaptorVersion: '3.8 (R2015b)'
DriverVersion: '1.0'
IsOperational: true

ID: 'ni'
FullName: 'National Instruments'
AdaptorVersion: '3.8 (R2015b)'
DriverVersion: 'unknown'
IsOperational: false

I don't understand why my Device is not seen by Matlab when the driver is considered operational.

I had problems too when I installed the toolbox, it said I hadn't the rights and I needed to change PATH. I changed my folder and redownloaded the toolbox and it worked. Don't know if it may be an issue.

Is the problem due to the fact that I need another driver for Matlab, or do I need to change the firmware, or did I miss a step in the installation? Thank you.

[Walter Roberson]

As an experiment, get the properties and for the first vendor extract the ID field and add 0 to the string. Adding 0 will show the byte codes corresponding to the characters. There is a chance that there is a 4th character or that what looks like 'adi' might be some slightly different characters.

[Tony]

Hello, I extracted the ID field by :

f=daq.getVendors 
f(1,1).ID

then I tried to add 0 with :

 strcat(f(1,1).ID,'0')

It gave me: adi0

So 'adi' is the right name to call? Actually, when I type

daq.getDevices

I get :

ans = No data acquisition devices available.

Thanks.

[Walter Roberson]

I mean f(1,1).ID + 0 -- that is, add the number 0. Or equivalently,

double(f(1,1).ID)

[Tony]

I get ans =97 100 105 which is adi in ASCII. So it's not the problem I think. I think it comes from here:

daq.getDevice

   => ans = No data acquisition devices available

[Tony]

Isn't this weird that when I install the toolbox, it creates a folder directly in a C://MATLAB//SupportPackages and not in my C://Program Files (x86)//MATLAB ?

[Vinod]

That is by design. Support packages get installed under C:\MATLAB\SupportPackages.

Answer 1

[Vinod]

You need the latest firmware of the device as the old firmware has very serious bugs and is unsupported in MATLAB.

Could you update the firmware and try again?

Instructions on upgrading the firmware are here: https://wiki.analog.com/university/tools/m1k-firmware-upgrade#manual_update

Answer 2

[Tony]

Thank you, it works well. I have an other question though: I know the ADALM1000 can put on of its I/O in the high impedance mode, how can I do that with the Toolbox? Thanks.

[Vinod]

The toolbox abstracts away details. When you are measuring voltage without generating a current the ADALM1000 device is automatically set into high impedance mode.

Perhaps if you describe your application or use case someone can recommend the appropriate workflow.