WiFi connection example for ESP32-P4-Function-EV-Board

[dmartauz]

Checklist

• [X] Checked the issue tracker for similar issues to ensure this is not a duplicate.
• [X] Described the feature in detail and justified the reason for the request.
• [X] Provided specific use cases and examples.

Feature description

Please provide minimal example for the P4 host using C6 connected over SDIO to make a connection to an access point, possibly without any unnecessary dependencies such as esp-bsp.

Use cases

Basic testing of esp-hosted compatibility with selected version of esp-idf.

Alternatives

No response

Additional context

No response

[mantriyogesh]

Hello @dmartauz ,

We had provided steps to integrate into simple IDF example, https://github.com/espressif/esp-idf/tree/master/examples/wifi/iperf. any other wifi example could be integrated with same steps.

steps : https://github.com/espressif/esp-hosted/tree/feature/esp_as_mcu_host?tab=readme-ov-file#4-quick-demo-with-esp32-p4-function-ev-board

[mantriyogesh]

regarding earlier question, to flash c6, you really don't need esp-prog method and can rely on OTA if hosted slave was already flashed or pre-flashed board.

[dmartauz]

I am attempting to run iperf example exactly as described here: https://github.com/espressif/esp-idf/tree/master/examples/wifi/iperf

iperf> sta_connect "XXXX" "****"
I (5219) WIFI: Connecting to XXXX...
I (5236) H_API: esp_wifi_remote_connect
I (5255) WIFI: DONE.WIFI_CONNECT_START,OK.
iperf> I (8274) esp_wifi_remote: esp_wifi_internal_reg_rxcb: sta: 0x4004d508
I (8276) WIFI: WIFI_EVENT_STA_CONNECTED!
I (9292) esp_netif_handlers: sta ip: 192.168.1.106, mask: 255.255.255.0, gw: 192.168.1.1
I (9293) WIFI: IP_EVENT_STA_GOT_IP: Interface "sta" address: 192.168.1.106
I (9304) WIFI: - IPv4 address: 192.168.1.106,
iperf>
iperf> iperf -s -i 2
I (23700) IPERF: mode=tcp-server sip=localhost:5001, dip=0.0.0.0:5001, interval=2, time=30
I (23701) iperf: Socket created
iperf> E (33710) iperf: iperf_run_tcp_server(325): Unable to accept connection: errno 11
I (33711) iperf: iperf exit

It connects to an AP but then throws this error. Is it only a matter of no iperf client trying to connect? I am still running factory image on C6.

[mantriyogesh]

Nothing related to esp-hosted.

esp-idf example behaviour. if you wish can configure as you need using idf.py menuconfig.

[dmartauz]

You are right, I increased the timeout and the error was postponed. I can even connect with windows iperf client. That means that esp-hosted is running with recent esp-idf/master clone and with factory C6 firmware of ESP32-P4-Function-EV-Board. I think the problem is in wifi init routine implemented in my application and this is what I will focus on. I am porting my application from S3 and due to using esp_wifi_remote I was expecting it to work without any modification.