[Solved] ADALM2000 positive power supply does not work

Hi,

Upon calibration make sure you disconnect everything from the ADALM2000, and after calibration, reconnect. Can you share what OS are you using, what firmware and software version ? Also is it possible you provide the ini file ?

-Adrian

Hi Adrian,

Thank you for responding. I've made sure to disconnect everything, calibrate, then reconnecting, but this makes no difference.

My OS is Linux (manjaro), and Scopy reports the m2k firmware version to be v0.26. (I updated the firmware before doing anything else.) Scopy itself is v1.2.0, from https://github.com/analogdevicesinc/scopy/releases/tag/v1.2.0.

I could not find a .INI file, but there is a config.txt which kind of looks like it's in INI format:

# Analog Devices M2k Rev.D (Z7010)
# Device Configuration File
#   1. Open with an Editor
#   2. Edit this file
#   3. Save this file on the device USB drive
#   4. Eject the device USB Drive
# Doc: https://wiki.analog.com/university/tools/pluto/users/customizing

[NETWORK]
hostname = m2k
ipaddr = 192.168.2.1
ipaddr_host = 192.168.2.10
netmask = 255.255.255.0

[WLAN]
ssid_wlan = 
pwd_wlan = 
ipaddr_wlan = 

[USB_ETHERNET]
ipaddr_eth = 
netmask_eth = 255.255.255.0

[SYSTEM]
xo_correction = 
udc_handle_suspend = 0

[ACTIONS]
diagnostic_report = 0
dfu = 0
reset = 0
calibrate = 0

Hi,

Do you have libiio installed ? You can verify this by running 

iio_info

adi@spandauhome:~$ iio_info
Library version: 0.21 (git tag: 359305c)
Compiled with backends: local xml ip usb serial
Unable to create Local IIO context : No such file or directory (2)

If you get an error message, you can install it using instructions from https://wiki.analog.com/resources/tools-software/linux-software/libiio#building_on_the_linux_host_target (you don't need to do the libini part of things)

After installing can you run some diagnostic tests:

1. Disconnect & reconnect the board. Wait a minute for it to boot.

2. run this script

https://gist.github.com/adisuciu/97a9ed6f132443b2df1a21e769b8270a

This will create 3 files: before_init.txt, after_init.txt, after_5v.txt

3. reboot the board, run scopy, connect to the board, enable the positive powersupply at 5V and run

iio_info -u "ip:192.168.2.1" > scopy.txt

Attach all the files scopy.txt, before_init.txt, after_init.txt, after_5v.txt as well as the output of the script. You can also attach the output of Scopy when it's running. This script will let us know if it's a problem with the board or in the software.

We also have a new build of scopy pending release that will enable some more advanced diagnostics, but this script should be enough.

-Adrian

EDIT:
The script output should look something like this

adi@spandauhome:~$ ./ps_script.sh
--- Saved initial board state to before_init.txt
dev 'm2k-fabric', channel 'voltage0' (input), attr 'powerdown', value '1'
wrote 2 bytes to powerdown
dev 'm2k-fabric', channel 'voltage0' (input), attr 'powerdown', value '0'
dev 'm2k-fabric', channel 'voltage0' (output), attr 'powerdown', value '1'
wrote 2 bytes to powerdown
dev 'm2k-fabric', channel 'voltage0' (output), attr 'powerdown', value '0'
dev 'm2k-fabric', channel 'voltage1' (input), attr 'powerdown', value '0'
wrote 2 bytes to powerdown
dev 'm2k-fabric', channel 'voltage1' (input), attr 'powerdown', value '0'
dev 'm2k-fabric', channel 'voltage1' (output), attr 'powerdown', value '1'
wrote 2 bytes to powerdown
dev 'm2k-fabric', channel 'voltage1' (output), attr 'powerdown', value '0'
dev 'm2k-fabric', attr 'clk_powerdown', value :'0'
wrote 2 bytes to clk_powerdown
dev 'm2k-fabric', attr 'clk_powerdown', value :'0'
0
0

--- Board init finished
--- Saved board state to after_init.txt

--- Write 0V to ad5627
dev 'ad5627', channel 'voltage0' (output), attr 'raw', value '2048'
wrote 2 bytes to raw
dev 'ad5627', channel 'voltage0' (output), attr 'raw', value '0'
0

--- Positive power supply reads: this value should be around 0
0

--- Write 5V to ad5627
dev 'ad5627', channel 'voltage0' (output), attr 'raw', value '0'
wrote 5 bytes to raw
dev 'ad5627', channel 'voltage0' (output), attr 'raw', value '3388'
0

--- Positive power supply reads: this value should be around 3300
3204
--- You should be able to measure 5V between V+ and GND

--- Reset the board now, and wait for board reboot
--- Run Scopy - set positive power supply

m2k-diagnostics.zip

Hi, sorry for the late reply. It was a busy week!

I've run the script and the outputs are attached (no after_5v.txt was generated). What's great is that the last commands in the script actually enabled the positive power supply, so this seems to be just a software fault. Scopy is still not showing any voltage.

Thanks for you help so far!

m2k-diagnostics.zip

Hi, sorry for the late reply. It was a busy week!

I've run the script and the outputs are attached (no after_5v.txt was generated). What's great is that the last commands in the script actually enabled the positive power supply, so this seems to be just a software fault. Scopy is still not showing any voltage.

Thanks for you help so far!

I forgot to include the after_5v.log to the test, but you are eright, it looks like a software issue. Can you give this version a try ? 

https://github.com/analogdevicesinc/scopy/suites/2277902614/artifacts/47597381

I'm willing to try the version you suggested, but the link is a 404 on my end.

We created this new RC - you can test it out here:

github.com/.../v1.3.0-rc1

Thanks a lot, this version works for me and the power supply is functional now.