ESP8266_RTOS_SDK v1.4.0

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ESP8266_RTOS_SDK

- Misc APIs : misc APIs
- WiFi APIs : WiFi related APIs
  - SoftAP APIs : ESP8266 Soft-AP APIs
  - Station APIs : ESP8266 station APIs
  - Common APIs : WiFi common APIs
  - Force Sleep APIs : WiFi Force Sleep APIs
  - Rate Control APIs : WiFi Rate Control APIs
  - User IE APIs : WiFi User IE APIs
  - Sniffer APIs : WiFi sniffer APIs
  - WPS APIs : WiFi WPS APIs
  - Smartconfig APIs : SmartConfig APIs
  - AirKiss APIs : AirKiss APIs
- Spiffs APIs : Spiffs APIs
- SSC APIs : Simple Serial Command APIs
- System APIs : System APIs
  - Boot APIs : Boot mode APIs
  - Upgrade APIs : Firmware upgrade (FOTA) APIs
- Software timer APIs : Software timer APIs
- Network Espconn APIs : Network espconn APIs
- ESP-NOW APIs : ESP-NOW APIs
- Mesh APIs : Mesh APIs
- Driver APIs : Driver APIs
  - PWM Driver APIs : PWM driver APIs
  - UART Driver APIs : UART driver APIs
  - GPIO Driver APIs : GPIO driver APIs
  - SPI Driver APIs : SPI Flash APIs
  - Hardware timer APIs : Hardware timer APIs

void user_init(void) is the entrance function of the application.

Attention
  1. It is recommended that users set the timer to the periodic mode for periodic checks.
  (1). In freeRTOS timer or os_timer, do not delay by while(1) or in the manner that will block the thread.
  (2). The timer callback should not occupy CPU more than 15ms.
  (3). os_timer_t should not define a local variable, it has to be global varialbe or memory got by malloc.
  2. Since esp_iot_rtos_sdk_v1.0.4, functions are stored in CACHE by default, need not be added ICACHE_FLASH_ATTR any more. The interrupt functions can also be stored in CACHE. If users want to store some frequently called functions in RAM, please add IRAM_ATTR before functions' name.
  3. Network programming use socket, please do not bind to the same port.
  (1). If users want to create 3 or more than 3 TCP connections, please add "TCP_WND = 2 x TCP_MSS;" in "user_init".
  4. Priority of the RTOS SDK is 15. xTaskCreate is an interface of freeRTOS. For details of the freeRTOS and APIs of the system, please visit http://www.freertos.org
  (1). When using xTaskCreate to create a task, the task stack range is [176, 512].
  (2). If an array whose length is over 60 bytes is used in a task, it is suggested that users use malloc and free rather than local variable to allocate array. Large local variables could lead to task stack overflow.
  (3). The RTOS SDK takes some priorities. Priority of the pp task is 13; priority of precise timer(ms) thread is 12; priority of the TCP/IP task is 10; priority of the freeRTOS timer is 2; priority of the idle task is 0.
  (4). Users can use tasks with priorities from 1 to 9.
  (5). Do not revise FreeRTOSConfig.h, configurations are decided by source code inside the RTOS SDK, users can not change it.