Espressif Systems ESP - Page 160

Chapter 4. Software framework
4.10.83 Is there a standard for the number of Wi-Fi signal frames?
CHIP: ESP8266 | ESP32 | ESP32 | ESP32-C3
• There is no such standard for now. You can do the calculation by yourself based on the received
RSSI. For example, if the received RSSI range is [0,-96], and the required signal strength is 5, then
[0~-20] is the full signal, and so on.
4.10.84 What is the current progress of WFA bugs xing?
CHIP: ESP32 | ESP32-S2 | ESP32-C3 | ESP8266
• Please refer to ` Security Advisory for WFA vulnerability <https://www.espressif.com/sites/
default/files/advisory_downloads/AR2021-003%20Security%20Advisory%20for%20WFA%
20vulnerability.pdf>`_ for more details.
4.10.85 When Wi-Fi connection failed, what does the error code mean?
CHIP: ESP32
• Any error occurred during the Wi-Fi connection will cause it coming to init status, and there will
be a hexadecimal number in the log, e.g., wifi:state, auth-> init(200). The 󰝘rst
two digits indicate error reasons while the last two digits indicate the type code of the received or
transmitted management frame. Common frame type codes are 00 (received nothing, timeout),
A0 (disassoc), B0 (auth) and C0 (deauth).
• Error reasons indicated by the 󰝘rst two digits can be found in Wi-Fi Reason Code. The last two
digits can be checked in frame management code directly.
4.10.86 When using ESP32’s Release/v3.3 of SDK to download the Station example, the
device cannot be connected to an unencrypted Wi-Fi. What is the reason?
• In the example, it is by default to connect to an encrypted AP as:
.threshold.authmode = WIFI_AUTH_WPA2_PSK,
• If you need connect to an unencrypted AP, please set the following parameter to 0:
.threshold.authmode = 0,
• For AP mode selection instructions, please refer to esp_wi󰝘_types.
4.10.87 What is the maximum PHY rate of Wi-Fi communication of ESP32-S2 chip?
• The theoretical maximum PHY rate of ESP32-S2 Wi-Fi communication is 150 Mbps.
Espressif Systems 143
Submit Document Feedback
Release master