From e1c73649c5313dda89baeb5b8cc9ee4ee7e39827 Mon Sep 17 00:00:00 2001 From: Dong Heng Date: Wed, 30 Jan 2019 11:19:05 +0800 Subject: [PATCH] docs(wifi): Add sniffer or promiscuous mode use limit --- docs/en/api-reference/wifi/esp_wifi.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/en/api-reference/wifi/esp_wifi.rst b/docs/en/api-reference/wifi/esp_wifi.rst index 9c4ef593..3a335e0d 100644 --- a/docs/en/api-reference/wifi/esp_wifi.rst +++ b/docs/en/api-reference/wifi/esp_wifi.rst @@ -14,6 +14,12 @@ The WiFi libraries provide support for configuring and monitoring the ESP8266 Wi - Scanning for access points (active & passive scanning). - Promiscuous mode monitoring of IEEE802.11 WiFi packets. +Important +^^^^^^^^^ + +Since the ESP8266 RTOS SDK V3.0, we moved some functions from IRAM to flash, including `malloc` and `free` fucntions, to save more memory. +In this case, please do not read/write/erase flash during sniffer or promiscuous mode. You need to disable the sniffer or promiscuous mode at first, then read/write/erase flash. + Application Examples --------------------