nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

narfster — Mon, 08 Apr 2024 06:19:33 GMT

No, i don't have any LOG errors

sdk 2.6.0

and I can see the packets on the sniffer.

but still this is not relevant for real world..

opened a ticket
nrf7002-DK - Wifi channel switching raw packets

devzone.nordicsemi.com/.../127044.main.c

it also worked without opening / closing the socket. just switching channels.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

jay wang — Mon, 08 Apr 2024 00:49:52 GMT

You don't have any issue with code errors when switching channels?

The datasheet is not published, Don't know how does the low level code implement . I am waiting the new version of this feature.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

narfster — Sun, 07 Apr 2024 15:44:23 GMT

for completeness -

1 channel 1 packet - power DK7002 ~20ms.

changed sample to:

1. transmit in legacy mode (802.11g)

CONFIG_RAW_TX_PKT_SAMPLE_RATE_FLAGS 0

2. enabled low power with this

CONFIG_NRF_WIFI_LOW_POWER=y

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

narfster — Sun, 07 Apr 2024 15:38:46 GMT

HI,

I am also inquiring about the raw_tx_packet demo.

I have also create a small app based on this demo where i change channels to 1,6,11 and send raw packets.

here is the result of power profile - current.

the channel switching itself is very slow and cannot be used in real world application. 756ms for 3 channels.

same code without channel switching - you can see that the time it takes for sending 3 packets one after another on same channel in total is 20ms.

is there any work done on this?

thanks

Dan

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

jay wang — Fri, 19 Jan 2024 13:43:08 GMT

OK,Thanks.I guess i 'd better wait util the stable version comes out to verify this feature.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

Hung Bui — Fri, 19 Jan 2024 12:27:20 GMT

Thanks Jay for the info. I have reported this to our Wifi team.
Please be aware that what you are testing on is the main repo so issues are expected as it's not the stable release.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

jay wang — Fri, 19 Jan 2024 08:56:15 GMT

Please clarify, when you don't switch channel and set CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS = 10ms then it stopped working after a while, correct ? How long if it take ? Yes, 1 - 10 minutes, Not fixed.

If you set CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS >10ms, for example 50ms , do you see the problem ? I set it to 50ms, The mcu restart at 58 sec in my first test. Not fixed too.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

Hung Bui — Fri, 19 Jan 2024 08:47:38 GMT

Hi Jay,

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

jay wang — Fri, 19 Jan 2024 00:14:49 GMT

Hi Hung,

This is my code:devzone.nordicsemi.com/.../61815.main.c

It is modified based on raw_tx_packet.

q: I assume when you don't do channel switching it was working for CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS >10ms ? (CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS = 10ms when don't switching the channel)

Best regards

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

Hung Bui — Thu, 18 Jan 2024 12:47:52 GMT

Hi Jay,
Could you provide us the code you used in both cases, when you use channel switching and when you don't ?

I assume when you don't do channel switching it was working for CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS >10ms ?

We are suspecting the issue with channel switching is that it would take about 300ms for the nRF7002 to switch the channel. But I need to double check.

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

jay wang — Thu, 18 Jan 2024 00:37:51 GMT

Hi Hung:

Thanks for your reply.

As your said, I set

CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS=10

and not switching the channel.

Log details:

[00:01:12.992,767] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.012,023] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.029,724] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.029,846] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.043,914] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.056,884] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.088,745] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.090,972] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.121,276] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.134,246] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.140,533] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m
[00:01:13.142,242] [1;31m<err> wifi_nrf: nrf_wifi_fmac_rawtx_done_event_process: tx done called[0m

It's so fast, But it is stopped at some point. It cannot resume except restart but no log output.

Best regards

RE: nRF7002Dk send wifi beacon on 3 channel with the samples "raw_tx_packet"

Hung Bui — Wed, 17 Jan 2024 15:26:13 GMT

Hi Jay,
Could you try to do a quick test of not switching the channel ? To see if you can lower CONFIG_RAW_TX_PACKET_SAMPLE_INTER_FRAME_DELAY_MS

From the log it seems that it was not able to allocate the memory for the command at OSAL layer.