Q&A - Recent Threads

ADALM2000 Scopy Crashing Issues

Simonjd6 — Tue, 14 Jul 2026 01:25:03 GMT

As the title says, whenever I try to activate my Adalm2000 while using the latest version of scopy it instantly crashes. I have checked if it is a RAM issue but it definitely is not. Any other causes anyone could think of? I am kind of stuck.

ading xvc to kuiper

julims — Wed, 01 Jul 2026 08:54:55 GMT

hi,

AMD/Xilinx provide a method to add the xilinx virtual cable to petalinux:

Designing an XVC project for Remote Debugging of Zynq UltraScale+ devices

in the case of the kuiper linux how i could add this app to the linux image?.

the source code for the XVC is available here:

GitHub - Xilinx/XilinxVirtualCable: Xilinx Virtual Cable (XVC) is a TCP/IP-based protocol that acts like a JTAG cable and provides a means to access and debug your FPGA or SoC design without using a physical cable. · GitHub

but not sure if I have to add some more configuration (more than the device tree instantiation for example) since the petalinux add flag to enable this feature.

regards

I would appreciate it if you could help me solve the Adalm-Pluto connection problem. I am a ham radio operator. When I use the internet browser with the IP address 192.168.2.1, I can connect to the Pluto. When I try to connect to another program, such as D

Amador — Fri, 19 Jun 2026 19:43:27 GMT

I would appreciate it if you could help me solve the Adalm-Pluto connection problem. I am a ham radio operator. When I use the internet browser with the IP address 192.168.2.1, I can connect to the Pluto. When I try to connect to another program, such as DATV-red or SDRConsole, it fails to communicate data and does not recognize the Analog Devices Pluto SDR AD9363. I have another identical Pluto with the same configuration that works perfectly and connects to all programs. I have tried everything possible and cannot get it to work. Thank you.

Scopy for MacSilicone - Intel not supported

blysynski — Mon, 25 May 2026 00:36:50 GMT

Is a Universal or MacSilicon version of Scopy being developed? MacOS will be losing Intel application support soon.

pc wont see adlam pluto

N1ck — Thu, 09 Apr 2026 18:28:06 GMT

my pluto was working fine now neither of my pc will see it and there appears to be a small hole in the usb otg chip.

is the unit dead or is there a way to program and use through the uart port.

thanks

Figure 8 Transformer DC-DC booster delivers 1 mA at 15 V.

NJ1 — Sun, 29 Mar 2026 21:11:00 GMT

in this lab: https://wiki.analog.com/university/courses/alm1k/alm-lab-15

The hexapath is configured as a 1:5 step up transformer. I have the breakout board version of this transformer from the ADALP2000 parts kit. Can someone please tell me what pin numbers are involved 1) when connecting the YX8018 part to one side of the transformer and 2) what pin numbers are connected to the step up side going to the load? Also, do any pins have to be linked?

Thanking you in advance.

Request for libsmu Conda Package Updates for ADALM1000

sounddrill31 — Thu, 19 Mar 2026 12:57:10 GMT

Hello everyone.

The libsmu package on conda is extremely out of date and I would really appreciate it if it could be updated :D

I know the ADALM1000 doesn't actively get updates anymore, it is still a board we use a lot during lab work. Extending this ensures that setting up software like PySMU scripts and maybe even ALICE becomes a much easier process on various platforms.

I submitted a pull request here to get the ball rolling, my friends and I did a lot to ensure that the conda build system would stop stop throwing errors: https://github.com/conda-forge/libsmu-feedstock/pull/23#issuecomment-4085768075 This pull request also adds support for osx arm64, linux aarch64.

There is no LLM content in this post, and code level LLM usage has been responsibly disclosed and carefully reviewed(more info in the PR).

tddn off_raw parameter

JHPereira — Fri, 13 Mar 2026 14:12:20 GMT

Hello. In the pluto_tddn.py example in the pyadi-iio examples, the TDD engine is setup as following.

tddn.channel[0].on_raw = 0
tddn.channel[0].off_raw = 0
tddn.channel[0].polarity = 0
tddn.channel[0].enable = 1

# RX DMA SYNC
tddn.channel[1].on_raw = 0
tddn.channel[1].off_raw = 10
tddn.channel[1].polarity = 0
tddn.channel[1].enable = 1

# TX DMA SYNC
tddn.channel[2].on_raw = 0
tddn.channel[2].off_raw = 10
tddn.channel[2].polarity = 0
tddn.channel[2].enable = 1

The tddn's class documentation is unfortunately very minimal and barely explains how it works and how to modify this for different use cases. One has to look at the HDL documentation and diagram in Vivado to begin to have an idea of how to understand it and I don't have much experience with it. So some more in-depth explanation directly in the pyadi-iio would be appreciated.

From what I understand looking at the Vivado project, the uncommented 1st channel is connected to the GPIO 0 pin. So is it just for external sync or do the channel[0] properties matter if we are doing software sync?

Why the magic number 10 in the off_raw property of channel[1] and channel[2]? From what I understand this property "turns off" the DMA SYNC channels 10 clock cycles before the frame is finished. If I try to set off_raw to 0 in the RX DMA SYNC channel I get the following error

x = self._rx_buffered_data()
^^^^^^^^^^^^^^^^^^^^^^^^
File "[...]/adi/compat.py", line 149, in _rx_buffered_data
self._rxbuf.refill()
File "[...]/iio.py", line 1003, in refill
_buffer_refill(self._buffer)
File "[...]/iio.py", line 62, in _check_negative
raise OSError(-result, _strerror(-result))
TimeoutError: [Errno 110] Connection timed out

Which I can't recover from even after setting the value back to 10 unless I turn the Pluto off and on again.

If I set tddn.channel[2].off_raw = 0, then basically only 0's are sent to the transceiver for transmission.

Using off_raw = 2 seems to work. I would be grateful if someone could provide an explanation on how to pick this value and if it is possible to use off_raw = 0 so that samples aren't lost between frames.

Finally, what does polarity do?

Multiple ADALM PLUTO SDR's Synchronization

burak0990 — Tue, 10 Mar 2026 19:24:59 GMT

I am going to work on my project that is including two adalm pluto sdr ad9363 rev C with enabled 2r2t mode. The aim of the project is using 4 antennas direction of arrival estimation and digital beamforming systems. Each device use its own 40 MHz crystal oscillator it causes frequency and time offset. If i know right, clock synchronization is not allowed for this model. There may be different approach to compensate that phase difference between two devices using pilot based software synchronization. I need to synchronize the receiver side this approach is useful but not enough to do doa and beamforming calculation since carrier frequency offset has never been reached 0 value. Is there any different way to make this two device phase coherence without changing the sdr model to any other model like fmcomms5 ?

I also reach out approximately 7000 kHz frequency offset between two device. Maybe the reason that cause frame drop is occuring due to the usb.

TDD sync

ur3vke — Wed, 04 Mar 2026 20:37:40 GMT

Hi, I'm confused about using "sync_external" and "sync_internal" params when configuring TDD over pyadi.

Can somebody describe how it works and how it depends on whether to use "sync_soft" or trigger the physical "burst" pin in Pluto?

ADALM Pluto SDR USB recognization / Soldering Problem

shangus — Sat, 28 Feb 2026 09:54:48 GMT

My Pluto sometimes connects to my PC and sometimes disconnects, and recently it won’t connect to the PC via USB at all.

Because the USB port looks loose, I captured the board.

It looks like a soldering issue—am I right?

If so, what tools/equipment do I need to fix it?

Trying to enhance hardware perspective

ChengXuanYou — Sun, 15 Feb 2026 12:53:58 GMT

Hello, I'm trying out the example program(https://github.com/jonkraft/PhaserRadarLabs/blob/main/FMCW_RADAR_Waterfall_ChirpSync.py)(https://github.com/jonkraft/PhaserRadarLabs/blob/main/Range_Doppler_Plot.py), and the problem I'm encountering is that the echo strength is insufficient to be displayed on the graph after about 3m. I've already made a corner reflector myself, but the situation hasn't improved. So I'm wondering if there are any ways to enhance the signal, such as changing the antenna or increasing the power.

Latest Revision sends user to version 2.1.0 which doesn't work (Easy Fix)

ERISS — Fri, 06 Feb 2026 01:12:25 GMT

Scopy "ABOUT/LATEST RELEASE" sends you to Version 2.1.0. The current supported Release is Version 1.5.0 R1. Unfortunately Version 2.1.0 has significant bugs. All that needs to be fixed is the link so it points to the official SCOPY download page which is currently 1.5.0R1.

I am an instructor for ENGR202 at Oregon State University. I have installation instructions that sends students to the correct installation page. However, a few found the "Latest Release" on the about page. This caused a couple of days of frustration and lost work as V2.1.0 has significant bugs (Basically it doesn't work). As this is a simple change of link I am hopeful that you can address it.

Thank Ed

Error of trying to run example program with TDD

ChengXuanYou — Thu, 05 Feb 2026 09:39:30 GMT

Hello everyone, I'm trying to use the CN0566 instrument to verify FMCW experiments. I saw this person's video online (www.youtube.com/watch used his program on GitHub for testing(github.com/.../FMCW_RADAR_Waterfall_ChirpSync.py). I updated my version to V0.39 according to the CN0566's QUICK START instructions, and also updated AD9364. However, after the update, I received an error message, seemingly indicating a conflict between the 1r1t mode and chan1. But the program strongly requires an update to V0.38 or higher. Could you please help me figure out what I did wrong?The program I'm testing is FMCW_RADAR_Waterfall_ChirpSync.py.

Driver for ADALM2000

vanimoc — Tue, 03 Feb 2026 20:38:30 GMT

Does anyone have a suggested path forward for a student who wants to use his ADALM2000 with his newly purchased Lenovo laptop that has a Snapdragon ARM-based processor? Currently he cannot install the ADALM2000 drivers on his machine. The most recent information from this forum was that Analog Devices doesn't support the ARM-base processor and doesn't have any resources to make it compatible.

It would have been nice to know what processors the ADALM device drivers support. I am wondering if there are any other suggestions? Currently he had to revive his old laptop with a cracked screen that is very slow to run the ADALM2000.

Thanks!

Cant install Scopy drivers on Lenovo Ideapad with Snapdragon processor, Windows 11

vanimoc — Thu, 29 Jan 2026 07:36:52 GMT

One of my students cannot install the Scopy drivers on his Lenovo Ideapad that has the Snapdragon processor. He is running Windows 11. Everything fails. What are some suggestions for resolving this? Does anyone know if Scopy runs on this platform (Lenovo Ideapad with Snapdragon, Windows 11)? Thanks!

Unable to connect pluto using libiio library via WSL

AkshayTM — Sat, 10 Jan 2026 09:14:46 GMT

I am trying to connect an ADALM-Pluto SDR to my Debian WSL environment and access the device from within WSL. I have installed all the required libraries and dependencies in the Debian environment.

Using usbipd, I have successfully bound and attached Pluto’s USB bus ID from Windows to the Debian WSL instance. The device is correctly detected in Debian (it appears in lsusb), which confirms that USB passthrough is working.

However, despite the device being detected at the USB level, I am unable to access or communicate with the Pluto SDR using libiio or related tools from within WSL.

Phaser MATLAB Error: "Channel: voltage1 not found" and Missing ADAR1000s in iio_info

KrishnaKanth — Fri, 09 Jan 2026 20:32:46 GMT

Issue Description and Setup Description: I am experiencing a breakdown in communication between the PlutoSDR and the Phaser board. While I can connect to the Pluto, the system is not recognizing the Phaser's dual-channel capabilities or the on-board beamformers.

Symptoms:

MATLAB Error: When running Phaser_steeringAngle_rev1, I receive the error: Channel: voltage1 not found.
- The code works fine if I set rx.EnabledChannels = [1].
- It crashes immediately if set to [1,2] or [2].
Missing Devices: Running iio_info on the Pluto (v0.39 firmware) shows the device is identifying as a standard AD9363 in a 1x1 configuration.
ADAR1000 Detection: iio_info | grep adar1000 returns no output, indicating the beamformers are not being initialized by the kernel.

Steps to Reproduce:

Connect ADALM-Phaser to ADALM-PLUTO.
Provide 5V external power to the Phaser barrel jack.
Configure Pluto config.txt to ipaddr = 192.168.3.1 (to avoid local Windows subnet conflicts).
Attempt to run Phaser MATLAB scripts with rx.EnabledChannels = [1,2].
Observe voltage1 not found error.

Setup Environment:

OS: Windows 11
MATLAB Version: [R2025b]
Pluto Firmware: v0.39
Hardware: PlutoSDR Rev.C (Z7010-AD9363A)

Full iio_info snippet:

hw_model: Analog Devices PlutoSDR Rev.C (Z7010-AD9363A)
ad9361-phy,model: ad9363a
IIO context has 6 devices:
iio:device0: ad9361-phy (Only shows voltage0 input, voltage1 missing)

About adalm pluto

sikanth — Wed, 07 Jan 2026 15:24:52 GMT

travisfcollins Am trying to use adalm pluto in gnuradio trying to evaluate or run the example of gnuradio by replacing UHD source of sink with pluto SDR source and sink but not able to use properly in there an firmware of fpga design need to be done to properly use pluto with gnuradio

Matlab to phaser kit communication error

niharikaechoninjas — Wed, 24 Dec 2025 03:21:28 GMT

I am trying to run the following codes in matlab

After bf(), I get

Trying my best to resolve it but cannot seem to figure out.

My adalm2000 has LED1 blinking twice a second. Is this the normal condition?

Martyopat — Tue, 23 Dec 2025 22:03:40 GMT

My ADALM2000 has the LED1 light blinking twice a second. Is this normal?

The firmare is updated to 0.33 and everything else works fine.

Thanks for any assistance.

iio_channel_disable does not clear the enable bit

F5OEO — Fri, 19 Dec 2025 11:57:40 GMT

Calling iio_channel_enable/disable should set bit 0 value of register 0x400,0x440,0x480 and 0x4C0 of ADC_Channel (axi_ad*).

This working when we call iio_device_create_buffer.

However, trying to call iio_channel_disable prior to iio_buffer_destroy is not reflecting the bit 0 clear.

Therefore, as enable is still 1, rx data are still being sent to fpga component adc_cpack which reflect overflow (fifo_wr_overflow) , which should not be the case.

The only method I found is to clear this by setting the register by hand .

devmem 0x79020400 32 0x250
devmem 0x79020440 32 0x250
devmem 0x79020480 32 0x250
devmem 0x790204C0 32 0x250

Is there a cleaner method to do this with iio ?

Thanks

Help required to implement a simple AFSK transmiter via the Python API with ADALM PLUTO.

Georgefour6 — Wed, 10 Dec 2025 16:41:39 GMT

I have a PLUTO rev B with the latest firmware. I have tried a number of ways to achieve this but all have failed with the Pluto only managing transmit a very small RF burst. It appears that a block of some sort is happening in the Pluto (unlikely at the USB as the sample rate is only 1M). The following is the code sends two characters (RY) encoded as 5 bit Baudot code (45,45 baud) with one start bit and two stop bits giving 16 bits to transmit with the symbols being 22002 samples (at 1M) of the mark and space frequencies. I'm wondering if this is a limitation of the Python API?

import numpy as np
import adi

sample_rate = 1e6 # Hz
center_freq = 132e6 # Hz
N = int(sample_rate/45.45) #22002 number of samples to transmit at once
t = np.arange(N)/sample_rate

sdr = adi.Pluto("ip:192.168.2.1")
sdr.tx_rf_bandwidth = int(sample_rate) # filter cutoff, just set it to the same as sample rate
sdr.tx_lo = int(center_freq)
sdr.tx_hardwaregain_chan0 = 0 # Increase to increase tx power, valid range is -90 to 0 dB
sdr.tx_buffer_size = 10e6

spaceI = np.int16(np.sin(2.0*np.pi*2125*t) * 2**14)
spaceQ = np.int16(np.cos(2.0*np.pi*2125*t) * 2**14)
spaceIQ = spaceI + 1j*spaceQ

markI = np.int16(np.sin(2.0*np.pi*2295*t) * 2**14)
markQ = np.int16(np.cos(2.0*np.pi*2295*t) * 2**14)
markIQ = markI + 1j*markQ

bit_sequence = [0,0,1,0,1,0,1,1,0,1,0,1,0,1,1,1]
waveform = np.array([], dtype=spaceIQ.dtype)
for bit in bit_sequence:
wave = markIQ if bit else spaceIQ
waveform = np.concatenate((waveform, wave))
sdr.tx(waveform)

Help Required for Implementing LFM Radar Using ADALM Pluto in GNU Radio

RadarCom — Mon, 08 Dec 2025 14:12:43 GMT

I am trying to implement an LFM (Linear Frequency Modulation) radar using GNU Radio and ADALM Pluto SDR, but I am facing some problems. I am not getting the correct beat frequency after processing the received signal, and sometimes the receiver is not able to detect the signal properly. I have also tried using a 10 m cable for loopback testing, but still the output is not accurate. I kindly request your help to guide me with the correct flowgraph, block parameters, and overall method to successfully implement the LFM radar system.

UNABLE TO ADALM PLUTO AS LFM RADAR

RadarCom — Mon, 08 Dec 2025 13:42:17 GMT

While performing LFM radar experiments using PlutoSDR in GNU Radio, a 10 m RF cable was used as a direct TX–RX loopback for testing. However, the received signal was not always visible, and sometimes no RX signal was obtained at all. Even when the signal was received, the processed data did not produce the correct beat frequency corresponding to the 10 m range, which resulted in inaccurate range estimation. These issues were mainly due to improper signal scaling, high TX attenuation, and unsuitable RX gain settings in the PlutoSDR configuration.