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General • pico 2 w additional wifi module no scan results

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Hello, I added a cyw43-based wifi module to PICO 2 W, refer to: https://iosoft.blog/2022/12/06/picowi_part1/
I have established communication with the wifi module and ran the https://github.com/raspberrypi/pico-exa ... .c example.
The program shows that the ASYNCEVENT_HEADER message can be received, but there is no scan result. Why is this? Some debugging information is printed as follows:

Code:

[CYW43] cyw43 test[CYW43] MAC = 0[CYW43] reg = 101058054[CYW43] reg = 0x6060606[CYW43] reg = -17973587[CYW43] reg = 0xfeedbead[CYW43] setting SPI_BUS_CONTROL 0x204b3[CYW43] read SPI_BUS_CONTROL 0x200b3[CYW43] backplane is ready[CYW43] ALP is set[CYW43] writing 224192 bytes to 0x0[CYW43] writing 744 bytes to 0x7fd14[CYW43] cyw43_clm_load start[CYW43] cyw43_clm_load done[CYW43] cyw43 using OTP mac address[CYW43] cyw43 loaded ok, mac 2c:cf:67:b4:f1:5bPerforming wifi scan[CYW43] got async event -- cyw43_ll_process_packets()[CYW43] ev->status = 0 -- cyw43_cb_process_async_event()ssid:                               rssi:    0 chan:   0 mac: 90:03:00:00:88:03 sec: 0
Except for the communication pins, the rest are the same, using the PICO 2 W's built-in wifi module, the debug information output is:

Code:

[CYN43] cyw43 test[CYW43] MAC = 0[CYW43] reg = 50529027[CYW43] reg = 0x3030303[CYW43] reg = -17973587[CYW43] reg = 0xfeedbead[CYW43] setting SPI_BUS_CONTROL 0x204b3[CYW43] read SPI_BUS_CONTROL 0x200b3[CYW43] backplane is ready[CYW43] ALP is set[CYW43] writing 224192 bytes to 0x0[CYW43] writing 744 bytes to 0x7fd14[CYW43] cyw43_clm_load start[CYW43] cyw43_clm_load done[CYW43] cyw43 using OTP mac address[CYW43] cyw43 loaded ok, mac 2c:cf:67:b4:f1:5bPerforming wifi scan[CYW43] got async event -- cyw43_ll_process_packets()[CYW43] ev->status = 8 -- cyw43_cb_process_async_event()ssid: Net-rpc9              rssi: -64 chan:   2 mac: 54:e1:05:ed:9e:c8 sec: 7ssid: Net-rpc8              rssi: -71 chan:   9 mac: 74:39:89:20:62:8f sec: 7.........

The two scans were at the same location. There was no scan result when using the newly added wifi module, but there was a result when using the built-in module of pico 2 w. Why is this?

Statistics: Posted by octopus1632 — Tue Jun 17, 2025 2:03 am — Replies 0 — Views 48



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