In Nrf7002dk facing issue with TWT Powersave Mechanism

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Wed, 04 Dec 2024 09:22:53 GMT

Hi,

[quote user="Jaswanth Rajigiri"]

what is the correct time periods to use TWT powersave, can you provide the wake interval and twt interval for the same.

And also if you see my sniffer in action frames i was not getting proper information for TWT setup and no announced, unannounced, accept or Request TWT related information also.

[/quote]

You shall get a feedback in the shell application if TWT was accepted or rejected. But I still see that you're using an older version of the SDK (v2.5.0?), and I would strongly recommend that you update and test on newer versions.

You can also have a look at this sample, as it includes traffic generation:

https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/wifi/twt/README.html

What access point model are you using?

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Tue, 03 Dec 2024 04:28:48 GMT

Hi,

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512986"]Please test zperf/iperf without TWT enabled first, to ensure that your overall setup is as expected.[/quote]

without enabling TWT Zperf is working fine.

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512986"]This was incorrect, as per your latest video. You are now setting 20 ms active and 60 ms period. Is this wanted timing? It does not make sense to use TWT for such a low period.[/quote]

what is the correct time periods to use TWT powersave, can you provide the wake interval and twt interval for the same.

And also if you see my sniffer in action frames i was not getting proper information for TWT setup and no announced, unannounced, accept or Request TWT related information also.

Regards,

Jaswanth.

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Mon, 02 Dec 2024 13:38:24 GMT

Hi,

Please test zperf/iperf without TWT enabled first, to ensure that your overall setup is as expected.

[quote user="hkn"]This will make it wake up for 20 ms each 60 seconds.[/quote]

This was incorrect, as per your latest video. You are now setting 20 ms active and 60 ms period. Is this wanted timing? It does not make sense to use TWT for such a low period.

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 12:00:09 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512958"]This will make it wake up for 20 ms each 60 seconds[/quote]

But this also not happening right? as per video i have attached

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512958"]iperf -c <nrf-ip>[/quote]

Not working

Is there any possible to connect virtually regrading this issue?

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Mon, 02 Dec 2024 11:56:48 GMT

[quote user="Jaswanth Rajigiri"]wake interval 20000us that means 20sec [/quote]

This is 20 ms, not 20 seconds.

[quote user="Jaswanth Rajigiri"]twt interval as 60sec, but it was not waking after 20 sec[/quote]

This will make it wake up for 20 ms each 60 seconds.

[quote user="Jaswanth Rajigiri"]can you explain how to do this, i have connected my nordic board to laptop which has iperf and iperf3 in it, do i need to run server in laptop on in nordic, if in nordic how to run it and which command do i need to give in my laptop ?[/quote]

In general, I would recommend that you check the manual for the programs that you use, in this case, you can see more details if you open a terminal and write "man iperf".

To setup iperf as a client, with TCP communication, here's an example:

iperf -c <nrf-ip>

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 11:04:15 GMT

please check the attached sniffer oncedevzone.nordicsemi.com/.../TWT_5F00_checking.pcapng

Also ran twt command with wake interval 20000us that means 20sec and twt interval as 60sec, but it was not waking after 20 sec

devzone.nordicsemi.com/.../TWT.mp4

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 08:56:22 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512887"]Feel free to do this by adjusting twt_interval parameter.[/quote]

i was not getting like how to adjust correctly, can you give the direct command so that i will adjust the timings in it

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 08:46:15 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512887"] iperf2 compatible client.[/quote]

can you explain how to do this, i have connected my nordic board to laptop which has iperf and iperf3 in it, do i need to run server in laptop on in nordic, if in nordic how to run it and which command do i need to give in my laptop ?

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Mon, 02 Dec 2024 08:40:49 GMT

Hi,

[quote user="Jaswanth Rajigiri"]but when i was running zperf download i was not receiving any buffer data in my sniffer capture,[/quote]

You started listening on the nRF, ie. zperf server is running on that device. You then need to connect via a iperf2 compatible client.

[quote user="Jaswanth Rajigiri"]I want to run in loop that means i device should go to sleep for every 10 sec and should be awake[/quote]

Feel free to do this by adjusting twt_interval parameter.

[quote user="Jaswanth Rajigiri"]need the exact command for the same[/quote]

Please see the documentation for wifi/shell TWT command in this list:

https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/wifi/shell/README.html#supported_cli_commands

Please notice the intervals, especially the boundaries for twt_wake_interval.

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 07:27:06 GMT

I want to run in loop that means i device should go to sleep for every 10 sec and should be awake for 3 sec and should receive the buffer data in the awake period and this should continue until i give tear down command , need the exact command for the same.and should see this through wire shark capture .

Please do the needful ASAP

Regards,

Jaswanth.

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Mon, 02 Dec 2024 04:16:24 GMT

HI,

but when i was running zperf download i was not receiving any buffer data in my sniffer capture,

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Fri, 29 Nov 2024 13:36:45 GMT

Hi,

It seems that you are now getting TWT accepted, and you are seeing a delay of up to 3 seconds via your ping, as expected with the TWT settings that you have (3s / 65ms active). The AP buffers the data to when the nRF7002 is awake.

The latest video shows that it works as expected.

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Fri, 29 Nov 2024 04:54:38 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512288"]To for instance 65000[/quote]

Tried the same by limiting the time but even though we gave the sleep interval,client is continuously in wake state as you see in the ping and once after disconnected from wifi then only it went to offline saying host is unreachable

devzone.nordicsemi.com/.../TWT_5F00_Commands_5F00_Nordic.mp4

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Fri, 29 Nov 2024 04:38:05 GMT

please check the videos attached.

devzone.nordicsemi.com/.../Nordic_5F00_Issue.mp4 devzone.nordicsemi.com/.../Nordic_5F00_issue_5F00_2.mp4

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Fri, 29 Nov 2024 04:09:15 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512562"]

Are you creating your own application? Could you please try the stock wifi/shell sample and use that?

[/quote]

i have used wifi/shell sample only, eventhough facing same issue

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Thu, 28 Nov 2024 11:53:36 GMT

Are you creating your own application? Could you please try the stock wifi/shell sample and use that?

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Thu, 28 Nov 2024 09:45:01 GMT

[quote userid="2115" url="~/f/nordic-q-a/116764/in-nrf7002dk-facing-issue-with-twt-powersave-mechanism/512419"]Did you manage to run the wifi/shell sample successfully with v2.8.0?[/quote]

when ever i was trying to create application like sample application, i was facing issues like client is continuously sending like scanning, 5GHz is not showing and wifi commands not working etc.

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Wed, 27 Nov 2024 15:47:24 GMT

Hi,

[quote user="Jaswanth Rajigiri"]I was trying in updated versions [/quote]

Did you manage to run the wifi/shell sample successfully with v2.8.0?

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Wed, 27 Nov 2024 12:07:53 GMT

I was trying in updated versions

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Wed, 27 Nov 2024 11:37:58 GMT

Hi,

You are running an older version of NCS. Have you tested any newer versions and observe the same issue? For instance v2.6.2 / v2.5.3 or v2.7.0?

Kind regards,

Håkon

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Wed, 27 Nov 2024 09:59:28 GMT

when i was trying to connect tcp getting following error

uart:~$ net tcp connect 172.40.9.252 5222

Connecting from 172.40.9.251:0 to 172.40.9.252:5222

TCP connection failed (-116)

[00:25:14.302,947] <err> os: ***** MPU FAULT *****

[00:25:14.302,947] <err> os: Data Access Violation

[00:25:14.302,947] <err> os: MMFAR Address: 0xbddd

[00:25:14.302,978] <err> os: r0/a1: 0x00000000 r1/a2: 0x00000002 r2/a3: 0x0000bddd

[00:25:14.302,978] <err> os: r3/a4: 0x200141b0 r12/ip: 0x20067af4 r14/lr: 0x0004dd7f

[00:25:14.302,978] <err> os: xpsr: 0x21000000

[00:25:14.302,978] <err> os: Faulting instruction address (r15/pc): 0x00073472

[00:25:14.303,009] <err> os: >>> ZEPHYR FATAL ERROR 19: Unknown error on CPU 0

[00:25:14.303,009] <err> os: Current thread: 0x20002ea0 (tcp_work)

[00:25:14.365,631] <err> coredump: #CD:BEGIN#

[00:25:14.371,368] <err> coredump: #CD:5a4501000300050013000000

[00:25:14.378,631] <err> coredump: #CD:4102004400

[00:25:14.384,704] <err> coredump: #CD:0000000002000000ddbd0000b0410120f47a06207fdd04007234070000000021

[00:25:14.395,446] <err> coredump: #CD:e8cf002000000000000000000000000000000000000000000000000000000000

[00:25:14.406,158] <err> coredump: #CD:00000000

[00:25:14.412,048] <err> coredump: #CD:4d0100a02e0020682f0020

[00:25:14.419,158] <err> coredump: #CD:80230020c8650020000000000080f20000000000000000000000000000000000

[00:25:14.429,901] <err> coredump: #CD:00000000000000000000000000000000f429002000000000ffffffffffffffff

[00:25:14.440,643] <err> coredump: #CD:00000000ffffffff0000000000000000c0cf002000000000f82e0020f82e0020

[00:25:14.451,385] <err> coredump: #CD:000100001dde0400a02e00200000000000000000884000207463705f776f726b

[00:25:14.462,097] <err> coredump: #CD:0000000000000000000000000000000000000000000000000000000070cc0020

[00:25:14.472,839] <err> coredump: #CD:00040000000000000c1600200000000000000000000000000000000000000000

[00:25:14.483,581] <err> coredump: #CD:0000000000000000

[00:25:14.490,173] <err> coredump: #CD:4d010070cc002070d00020

[00:25:14.497,253] <err> coredump: #CD:f0f0f0f0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.507,995] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.518,737] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.529,479] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.540,222] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.550,933] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.561,676] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.572,418] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.583,160] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.593,872] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.604,614] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.615,356] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.626,098] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.636,840] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.647,583] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.658,294] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

[00:25:14.669,036] <err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa6840002045e20400

[00:25:14.679,779] <err> coredump: #CD:d83e0020ac650020a02e0020c1e20400ffffffffa02e00207c120020ad2e0700

[00:25:14.690,521] <err> coredump: #CD:ffffffffffffffffffffffffa171002006000000a171002000000000230c0600

[00:25:14.701,263] <err> coredump: #CD:5c070020f47a0620a17100202879070008cf0020060000006924060097240600

[00:25:14.712,005] <err> coredump: #CD:060000001c6e07001800000089710020692406000b2c06000600000000000000

[00:25:14.722,717] <err> coredump: #CD:00000000000000002041000054470020d87807000a0000004d14090018000000

[00:25:14.733,459] <err> coredump: #CD:1b000000ab270600d8780700eb270600b327060010d000201c0000009f5a0000

[00:25:14.744,201] <err> coredump: #CD:8ecf0020092f0700f82c0020b32706004e14090000000000000000002d260200

[00:25:14.754,943] <err> coredump: #CD:98cf00204b14090050010000281a0020000000007a1e00006840002045e20400

[00:25:14.765,655] <err> coredump: #CD:d83e0020ac650020a02e0020c1e20400ffffffffa02e0020f4290020ad2e0700

[00:25:14.776,397] <err> coredump: #CD:ffffffffffffffffffffffff2de404000000000000ed00e0ac65002000000000

[00:25:14.787,139] <err> coredump: #CD:f47a0620f1db04007cb5000000000061f2fffffff42900200000000002000000

[00:25:14.797,882] <err> coredump: #CD:ddbd0000b0410120f47a06207fdd040072340700000000210000000044750620

[00:25:14.808,624] <err> coredump: #CD:8cffffff156c0600447506208cffffffa02e0020d4750620d4650020a1de0400

[00:25:14.819,335] <err> coredump: #CD:ffffffffffffffff00000000aaaaaaaaaaaaaaaa1dde04000000000000000000

[00:25:14.830,078] <err> coredump: #CD:00000000000000000000000000000000000000003104060000000000aaaaaaaa

[00:25:14.840,820] <err> coredump: #CD:END#

[00:25:14.846,343] <err> fatal_error: Resetting system

*** Booting nRF Connect SDK v2.5.1 ***

[00:00:00.414,062] <wrn> net_zperf: Unable to set IP

[00:00:00.414,093] <wrn> net_zperf: Unable to set IP

[00:00:00.414,154] <inf> net_zperf: Setting IP address 0.0.0.0

[00:00:00.414,184] <inf> net_zperf: Setting destination IP address 0.0.0.0

Starting nrf7002dk_nrf5340_cpuapp with CPU frequency: 128 MHz

[00:00:00.414,215] <inf> net_config: Initializing network

[00:00:00.414,245] <inf> net_config: Waiting interface 1 (0x20001918) to be up...

[00:00:00.414,245] <inf> net_config: Running dhcpv4 client...

[00:00:00.414,520] <inf> wpa_supp: Successfully initialized wpa_supplicant

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Jaswanth Rajigiri — Wed, 27 Nov 2024 09:42:19 GMT

Hi Alseth

is there any possible to connect virtually so that i can show you configuration and remaining issues which i was facing while building overlay-zperf.

when i was trying to build facing lot of issues, like device is going into scanning state, sometimes only 2.4GHZ is enabling, interface is getting down etc..

Regards

Jaswanth

RE: In Nrf7002dk facing issue with TWT Powersave Mechanism

Håkon Alseth — Wed, 27 Nov 2024 09:39:02 GMT

Hi,

it seems that your video was not fully uploaded. Could you re-attach it?

[quote user=""]But even after i have given wake interval it should go to sleep and should wake after the given wake interval time, but i was not happening in that way, it was continuously pinging or reachable without sleep.[/quote]

TWT was rejected by the access point:

[quote user=""]TWT operation TWT setup with dg: 2, flow_id: 2 requested
TWT response: TWT reject[/quote]

Try to adjust your TWT timing, specifically this one:

[quote user=""]TWT wake interval: 19968 us[/quote]

To for instance 65000.

[quote user=""]

uart:~$ net tcp connect 172.40.9.203 5001

Connecting from 172.40.9.248:0 to 172.40.9.203:5001

TCP connection failed (-116)

[00:13:28.327,423] <err> os: ***** BUS FAULT *****

[00:13:28.327,423] <err> os: Precise data bus error

[00:13:28.327,423] <err> os: BFAR Address: 0xc809

[/quote]

It looks like you are using wifi/shell.

Could you try adding the configurations from overlay-zperf.conf? This will expand the amount of sockets and overall buffers.

Kind regards,

Håkon