Hi,
Here is the output from the tx_timed_samples when it fails. Anyway, it
does not fail always. Sometimes everything works fine.
tx_timed_samples --args "addr0=192.168.130.2,addr1=192.168.50.2"
Creating the usrp device with: addr0=192.168.130.2,addr1=192.168.50.2...
[INFO] [UHD] linux; GNU C++ version 7.3.0; Boost_106501;
UHD_3.13.0.HEAD-0-gf114cfa0
[INFO] [X300] X300 initialization sequence...
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Maximum frame size: 1472 bytes.
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [1/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
[INFO] [1/DmaFIFO_0] BIST passed (Throughput: 1304 MB/s)
[INFO] [1/DmaFIFO_0] BIST passed (Throughput: 1322 MB/s)
[INFO] [1/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [1/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [1/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [1/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [1/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [1/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [X300] Radio 1x clock: 200 MHz
[INFO] [0/DmaFIFO_0] Initializing block control (NOC ID: 0xF1F0D00000000000)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1319 MB/s)
[INFO] [0/DmaFIFO_0] BIST passed (Throughput: 1306 MB/s)
[INFO] [0/Radio_0] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/Radio_1] Initializing block control (NOC ID: 0x12AD100000000001)
[INFO] [0/DDC_0] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DDC_1] Initializing block control (NOC ID: 0xDDC0000000000000)
[INFO] [0/DUC_0] Initializing block control (NOC ID: 0xD0C0000000000000)
[INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000)
Using Device: Multi USRP:
Device: X-Series Device
Mboard 0: X310
Mboard 1: X310
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: UBX RX
RX Channel: 1
RX DSP: 0
RX Dboard: B
RX Subdev: UBX RX
RX Channel: 2
RX DSP: 0
RX Dboard: A
RX Subdev: UBX RX
RX Channel: 3
RX DSP: 0
RX Dboard: B
RX Subdev: UBX RX
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: UBX TX
TX Channel: 1
TX DSP: 0
TX Dboard: B
TX Subdev: UBX TX
TX Channel: 2
TX DSP: 0
TX Dboard: A
TX Subdev: UBX TX
TX Channel: 3
TX DSP: 0
TX Dboard: B
TX Subdev: UBX TX
Setting TX Rate: 6.250000 Msps...
Actual TX Rate: 6.250000 Msps...
Setting device timestamp to 0...
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 364 samples
Sent packet: 172 samples
Waiting for async burst ACK... fail
Done!
On 23.05.19 19:09, Marcus D. Leech wrote:
On 05/23/2019 01:02 PM, Vladica Sark wrote:
I am using 1 Gb ETH interface. The sample rate is the default for
tx_timed_samples, i.e. 6.25 MSps. I am getting no underrun indication.
The tx_timed_samples sends the samples to the radio and schedules the
transmission 1.5 seconds in future. If I put only 1 radio, i.e. one IP
address, everything works perfect.
With 2 IP addresses (two radios), sometimes reports success sometimes
fail. It seems completely undetermined.
Could you share the error output with us when you use tx_timed_samples?
BR,
Vladica
On 23.05.19 17:47, Marcus D. Leech via USRP-users wrote:
On 05/23/2019 05:39 AM, Vladica Sark via USRP-users wrote:
Hi again,
I found an easy way to reproduce the problem. I use two x310's and
run the tx_timed_samples as:
tx_timed_samples --args "addr0=192.168.50.2,addr1=192.168.130.2"
--secs 0.5 --nsamps 1000000
sometimes it fails, sometimes it works. I use larger number of
samples to be able to notice the LED blinking.
BR,
Vladica
Are you getting any under-run indication? What type of ethernet
interface are you using, and at what sample rates?
On 23.05.19 08:36, Vladica Sark wrote:
Hi folks,
I have 2x X310 connected to Octoclock (10 MHz + PPS), each with 2x
UBX frontends. I control them from a C/C++ program. Since there are
4 channels, I create 4 tx streamers in order to transmit timed
samples on each of them. The transmissions are not at the same time
and this is the reason for using 4 tx streamers. The problem is
that when I schedule timed transmissions on all of the channels (at
the same time for test), sometimes I do not get anything with
recv_async_msg, i.e. the timeout expires. This also happens even
when I schedule only a single transmission from single tx streamer
(all 4 streamers are created).
Sometimes it happens that everything is working without problems,
i.e. I make 200 transmissions on each of the channels and I get the
proper response from the recv_async_msg, but many times, restarting
the same program leads to just recv_async_msg with expired timeout.
I am using UHD 3.13.0.
I can probably use one streamer and transmitting 0's on the rest of
the channels, but I would like to avoid LO leakage in the air.
Best regards,
Vladica
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