Merge branch 'doc/update_espnow_example' into 'master'

docs(wifi): change the magic varible from int to uint32_t on the receiving side

Closes IDFGH-9560 and IDFGH-9366

See merge request espressif/esp-idf!29845

docs/en/api-guides/wifi.rst

@@ -2168,7 +2168,7 @@ The following packets will **NOT** be dumped to the application:
 
  - Other 802.11 error frames.
 
-For frames that the sniffer **can** dump, the application can additionally decide which specific type of packets can be filtered to the application by using :cpp:func:`esp_wifi_set_promiscuous_filter()` and :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()`. By default, it will filter all 802.11 data and management frames to the application.
+For frames that the sniffer **can** dump, the application can additionally decide which specific type of packets can be filtered to the application by using :cpp:func:`esp_wifi_set_promiscuous_filter()` and :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()`. By default, it will filter all 802.11 data and management frames to the application. If you want to filter the 802.11 control frames, the filter parameter in :cpp:func:`esp_wifi_set_promiscuous_filter()` should include `WIFI_PROMIS_FILTER_MASK_CTRL` type, and if you want to differentiate control frames further, then call :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()`.
 
 The Wi-Fi sniffer mode can be enabled in the Wi-Fi mode of :cpp:enumerator:`WIFI_MODE_NULL`, :cpp:enumerator:`WIFI_MODE_STA`, :cpp:enumerator:`WIFI_MODE_AP`, or :cpp:enumerator:`WIFI_MODE_APSTA`. In other words, the sniffer mode is active when the station is connected to the AP, or when the AP has a Wi-Fi connection. Please note that the sniffer has a **great impact** on the throughput of the station or AP Wi-Fi connection. Generally, the sniffer should be enabled **only if** the station/AP Wi-Fi connection does not experience heavy traffic.
 

docs/zh_CN/api-guides/wifi.rst

@@ -2136,7 +2136,7 @@ Wi-Fi Sniffer 模式可以通过 :cpp:func:`esp_wifi_set_promiscuous()` 使能
 
  - 802.11 其它错误帧
 
-对于 Sniffer 模式 **可以** 转储的帧，应用程序可以另外使用 :cpp:func:`esp_wifi_set_promiscuous_filter()` 和 :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()` 决定筛选哪些特定类型的数据包。应用程序默认筛选所有 802.11 数据和管理帧。
+对于 Sniffer 模式 **可以** 转储的帧，应用程序可以另外使用 :cpp:func:`esp_wifi_set_promiscuous_filter()` 和 :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()` 决定筛选哪些特定类型的数据包。应用程序默认筛选所有 802.11 数据和管理帧。如果你想要筛选 802.11 控制帧，:cpp:func:`esp_wifi_set_promiscuous_filter()` 中的 filter 参数需要包含 “WIFI_PROMIS_FILTER_MASK_CTRL” 类型， 如果你想进一步区分 802.11 控制帧，那么调用 :cpp:func:`esp_wifi_set_promiscuous_ctrl_filter()`。
 
 可以在 WIFI_MODE_NULL、WIFI_MODE_STA、WIFI_MODE_AP、WIFI_MODE_APSTA 等 Wi-Fi 模式下使能 Wi-Fi Sniffer 模式。也就是说，当 station 连接到 AP，或者 AP 有 Wi-Fi 连接时，就可以使能。请注意，Sniffer 模式对 station/AP Wi-Fi 连接的吞吐量有 **很大影响**。通常，除非有特别原因，当 station/AP Wi-Fi 连接出现大量流量，不应使能。
 

examples/wifi/espnow/main/espnow_example_main.c

@@ -117,7 +117,7 @@ static void example_espnow_recv_cb(const esp_now_recv_info_t *recv_info, const u
 }
 
 /* Parse received ESPNOW data. */
-int example_espnow_data_parse(uint8_t *data, uint16_t data_len, uint8_t *state, uint16_t *seq, int *magic)
+int example_espnow_data_parse(uint8_t *data, uint16_t data_len, uint8_t *state, uint16_t *seq, uint32_t *magic)
 {
     example_espnow_data_t *buf = (example_espnow_data_t *)data;
     uint16_t crc, crc_cal = 0;
@@ -163,7 +163,7 @@ static void example_espnow_task(void *pvParameter)
     example_espnow_event_t evt;
     uint8_t recv_state = 0;
     uint16_t recv_seq = 0;
-    int recv_magic = 0;
+    uint32_t recv_magic = 0;
     bool is_broadcast = false;
     int ret;