@@ -59,3 +59,174 @@ I (5194) MQTT_EXAMPLE: MQTT_EVENT_DATA
5959TOPIC=/topic/qos0
6060DATA=data
6161```
62+
63+ ## Using Wi-Fi connection with ESP32P4
64+
65+ It is possible to use Wi-Fi connection on targets that do not support native Wi-Fi peripheral. This example demonstrates using ` esp_wifi_remote ` on ESP32P4 in the test configuration defined as ` sdkconfig.ci.p4_wifi ` . This configuration requires another ESP target with native Wi-Fi support physically connected to the ESP32-P4.
66+
67+ ### Configure master-slave verification
68+
69+ In order to secure the physical connection between the ESP32-P4 (master) and the slave device, it is necessary to set certificates and keys for each side.
70+ To bootstrap this step, you can use one-time generated self-signed RSA keys and certificates running:
71+ ```
72+ ./managed_components/espressif__esp_wifi_remote/examples/test_certs/generate_test_certs.sh espressif.local
73+ ```
74+
75+ ### Configure the slave project
76+
77+ It is recommended to create a new project from ` esp_wifi_remote ` component's example with
78+ ```
79+ idf.py create-project-from-example "espressif/esp_wifi_remote:server"
80+ ```
81+ but you can also build and flash the slave project directly from the ` managed_components ` directory using:
82+ ```
83+ idf.py -C managed_components/espressif__esp_wifi_remote/examples/server/ -B build_slave
84+ ```
85+
86+ Please follow these steps to setup the slave application:
87+ * ` idf.py set-target ` -- choose the slave target (must support Wi-Fi)
88+ * ` idf.py menuconfig ` -- configure the physical connection and verification details:
89+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CA ` -- CA for verifying ESP32-P4 application
90+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CRT ` -- slave's certificate
91+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_KEY ` -- slave's private key
92+ * ` idf.py build flash monitor `
93+
94+ ### Configure the master project (ESP32-P4)
95+
96+ similarly to the slave project, we have to configure
97+ * the physical connection
98+ * the verification
99+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_SERVER_CA ` -- CA for verifying the slave application
100+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_CRT ` -- our own certificate
101+ - ` CONFIG_ESP_WIFI_REMOTE_EPPP_CLIENT_KEY ` -- our own private key
102+
103+ After project configuration, you build and flash the board with
104+ ```
105+ idf.py build flash monitor
106+ ```
107+
108+ ### Example Output of the slave device
109+
110+ ```
111+ I (7982) main_task: Returned from app_main()
112+ I (8242) rpc_server: Received header id 2
113+ I (8242) pp: pp rom version: 5b8dcfa
114+ I (8242) net80211: net80211 rom version: 5b8dcfa
115+ I (8252) wifi:wifi driver task: 4082be8c, prio:23, stack:6656, core=0
116+ I (8252) wifi:wifi firmware version: feaf82d
117+ I (8252) wifi:wifi certification version: v7.0
118+ I (8252) wifi:config NVS flash: enabled
119+ I (8262) wifi:config nano formatting: disabled
120+ I (8262) wifi:mac_version:HAL_MAC_ESP32AX_761,ut_version:N, band:0x1
121+ I (8272) wifi:Init data frame dynamic rx buffer num: 32
122+ I (8272) wifi:Init static rx mgmt buffer num: 5
123+ I (8282) wifi:Init management short buffer num: 32
124+ I (8282) wifi:Init dynamic tx buffer num: 32
125+ I (8292) wifi:Init static tx FG buffer num: 2
126+ I (8292) wifi:Init static rx buffer size: 1700 (rxctrl:92, csi:512)
127+ I (8302) wifi:Init static rx buffer num: 10
128+ I (8302) wifi:Init dynamic rx buffer num: 32
129+ I (8302) wifi_init: rx ba win: 6
130+ I (8312) wifi_init: accept mbox: 6
131+ I (8312) wifi_init: tcpip mbox: 32
132+ I (8322) wifi_init: udp mbox: 6
133+ I (8322) wifi_init: tcp mbox: 6
134+ I (8322) wifi_init: tcp tx win: 5760
135+ I (8332) wifi_init: tcp rx win: 5760
136+ I (8332) wifi_init: tcp mss: 1440
137+ I (8342) wifi_init: WiFi IRAM OP enabled
138+ I (8342) wifi_init: WiFi RX IRAM OP enabled
139+ I (8352) wifi_init: WiFi SLP IRAM OP enabled
140+ I (8362) rpc_server: Received header id 11
141+ I (8362) rpc_server: Received header id 4
142+ I (8372) rpc_server: Received header id 6
143+ I (8372) phy_init: phy_version 270,339aa07,Apr 3 2024,16:36:11
144+ I (8492) wifi:enable tsf
145+ I (8492) rpc_server: Received WIFI event 41
146+ I (8502) rpc_server: Received WIFI event 2
147+ I (8732) rpc_server: Received header id 10
148+ I (8742) rpc_server: Received header id 5
149+ I (8752) rpc_server: Received header id 8
150+ I (11452) wifi:new:<6,0>, old:<1,0>, ap:<255,255>, sta:<6,0>, prof:1, snd_ch_cfg:0x0
151+ I (11452) wifi:(connect)dot11_authmode:0x3, pairwise_cipher:0x3, group_cipher:0x1
152+ I (11452) wifi:state: init -> auth (0xb0)
153+ I (11462) rpc_server: Received WIFI event 41
154+ I (11462) wifi:state: auth -> assoc (0x0)
155+ I (11472) wifi:(assoc)RESP, Extended Capabilities length:8, operating_mode_notification:0
156+ I (11472) wifi:(assoc)RESP, Extended Capabilities, MBSSID:0, TWT Responder:0, OBSS Narrow Bandwidth RU In OFDMA Tolerance:0
157+ I (11482) wifi:Extended Capabilities length:8, operating_mode_notification:1
158+ I (11492) wifi:state: assoc -> run (0x10)
159+ I (11492) wifi:(trc)phytype:CBW20-SGI, snr:50, maxRate:144, highestRateIdx:0
160+ W (11502) wifi:(trc)band:2G, phymode:3, highestRateIdx:0, lowestRateIdx:11, dataSchedTableSize:14
161+ I (11512) wifi:(trc)band:2G, rate(S-MCS7, rateIdx:0), ampdu(rate:S-MCS7, schedIdx(0, stop:8)), snr:50, ampduState:wait operational
162+ I (11522) wifi:ifidx:0, rssi:-45, nf:-95, phytype(0x3, CBW20-SGI), phymode(0x3, 11bgn), max_rate:144, he:0, vht:0, ht:1
163+ I (11532) wifi:(ht)max.RxAMPDULenExponent:3(65535 bytes), MMSS:6(8 us)
164+ W (11542) wifi:<ba-add>idx:0, ifx:0, tid:0, TAHI:0x1002cb4, TALO:0x1b942980, (ssn:0, win:64, cur_ssn:0), CONF:0xc0000005
165+ I (11572) wifi:connected with Cermakowifi, aid = 2, channel 6, BW20, bssid = 80:29:94:1b:b4:2c
166+ I (11572) wifi:cipher(pairwise:0x3, group:0x1), pmf:0, security:WPA2-PSK, phy:11bgn, rssi:-45
167+ I (11582) wifi:pm start, type: 1, twt_start:0
168+
169+ I (11582) wifi:pm start, type:1, aid:0x2, trans-BSSID:80:29:94:1b:b4:2c, BSSID[5]:0x2c, mbssid(max-indicator:0, index:0), he:0
170+ I (11592) wifi:dp: 1, bi: 102400, li: 3, scale listen interval from 307200 us to 307200 us
171+ I (11602) wifi:set rx beacon pti, rx_bcn_pti: 10, bcn_timeout: 25000, mt_pti: 10, mt_time: 10000
172+ I (11612) wifi:[ADDBA]TX addba request, tid:0, dialogtoken:1, bufsize:64, A-MSDU:0(not supported), policy:1(IMR), ssn:0(0x0)
173+ I (11622) wifi:[ADDBA]TX addba request, tid:7, dialogtoken:2, bufsize:64, A-MSDU:0(not supported), policy:1(IMR), ssn:0(0x20)
174+ I (11632) wifi:[ADDBA]TX addba request, tid:5, dialogtoken:3, bufsize:64, A-MSDU:0(not supported), policy:1(IMR), ssn:0(0x0)
175+ I (11642) wifi:[ADDBA]RX addba response, status:0, tid:7/tb:0(0x1), bufsize:64, batimeout:0, txa_wnd:64
176+ I (11652) wifi:[ADDBA]RX addba response, status:0, tid:5/tb:0(0x1), bufsize:64, batimeout:0, txa_wnd:64
177+ I (11662) wifi:[ADDBA]RX addba response, status:0, tid:0/tb:1(0x1), bufsize:64, batimeout:0, txa_wnd:64
178+ I (11672) wifi:AP's beacon interval = 102400 us, DTIM period = 1
179+ I (11682) rpc_server: Received WIFI event 4
180+ I (15682) esp_netif_handlers: sta ip: 192.168.0.33, mask: 255.255.255.0, gw: 192.168.0.1
181+ I (15682) rpc_server: Received IP event 0
182+ I (15682) rpc_server: Main DNS:185.162.24.55
183+ I (15682) rpc_server: IP address:192.168.0.33
184+ ```
185+
186+ ### Example Output of the master device (ESP32-P4)
187+
188+ ```
189+ I (445) example_connect: Start example_connect.
190+ I (455) uart: queue free spaces: 16
191+ I (455) eppp_link: Waiting for IP address 0
192+ I (3195) esp-netif_lwip-ppp: Connected
193+ I (3195) eppp_link: Got IPv4 event: Interface "pppos_client(EPPP0)" address: 192.168.11.2
194+ I (3195) esp-netif_lwip-ppp: Connected
195+ I (3195) eppp_link: Connected! 0
196+ I (5475) example_connect: Waiting for IP(s)
197+ I (8405) esp_wifi_remote: esp_wifi_internal_reg_rxcb: sta: 0x4001c68a
198+ I (9445) example_connect: Got IPv6 event: Interface "pppos_client" address: fe80:0000:0000:0000:5632:04ff:fe08:5054, type: ESP_IP6_ADDR_IS_LINK_LOCAL
199+ I (12415) rpc_client: Main DNS:185.162.24.55
200+ I (12415) esp_netif_handlers: pppos_client ip: 192.168.11.2, mask: 255.255.255.255, gw: 192.168.11.1
201+ I (12415) rpc_client: EPPP IP:192.168.11.1
202+ I (12415) example_connect: Got IPv4 event: Interface "pppos_client" address: 192.168.11.2
203+ I (12425) rpc_client: WIFI IP:192.168.0.33
204+ I (12435) example_common: Connected to pppos_client
205+ I (12445) rpc_client: WIFI GW:192.168.0.1
206+ I (12455) example_common: - IPv6 address: fe80:0000:0000:0000:5632:04ff:fe08:5054, type: ESP_IP6_ADDR_IS_LINK_LOCAL
207+ I (12455) rpc_client: WIFI mask:255.255.255.0
208+ I (12465) example_common: Connected to pppos_client
209+ I (12475) example_common: - IPv4 address: 192.168.11.2,
210+ I (12475) example_common: - IPv6 address: fe80:0000:0000:0000:5c3b:1291:05ca:6dc8, type: ESP_IP6_ADDR_IS_LINK_LOCAL
211+ I (12495) mqtt_example: Other event id:7
212+ I (12495) main_task: Returned from app_main()
213+ I (12905) mqtt_example: MQTT_EVENT_CONNECTED
214+ I (12905) mqtt_example: sent publish successful, msg_id=36013
215+ I (12905) mqtt_example: sent subscribe successful, msg_id=44233
216+ I (12905) mqtt_example: sent subscribe successful, msg_id=36633
217+ I (12915) mqtt_example: sent unsubscribe successful, msg_id=15480
218+ I (13115) mqtt_example: MQTT_EVENT_PUBLISHED, msg_id=36013
219+ I (13415) mqtt_example: MQTT_EVENT_SUBSCRIBED, msg_id=44233
220+ I (13415) mqtt_example: sent publish successful, msg_id=0
221+ I (13415) mqtt_example: MQTT_EVENT_SUBSCRIBED, msg_id=36633
222+ I (13415) mqtt_example: sent publish successful, msg_id=0
223+ I (13425) mqtt_example: MQTT_EVENT_DATA
224+ TOPIC=/topic/qos1
225+ DATA=data_3
226+ I (13435) mqtt_example: MQTT_EVENT_UNSUBSCRIBED, msg_id=15480
227+ I (13615) mqtt_example: MQTT_EVENT_DATA
228+ TOPIC=/topic/qos0
229+ DATA=data
230+ I (13925) mqtt_example: MQTT_EVENT_DATA
231+ TOPIC=/topic/qos0
232+ ```
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