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WHAT'S NEW
Simplifying Authenticated Cloud Connectivity for Any Device.
How Wi-Fi and Cellular connectivity modules with ExpressLink can help create secure cloud connected devices. See the blog post.
Designing an energy efficient and cloud-connected IoT solution with CoAP.
A client/server, request/response, UDP-based protocol for efficiency and cloud compatibility. See the blog post.
Introducing FreeRTOS Kernel version 11.0.0:
A Major Release with Symmetric Multiprocessing (SMP) Support. See the blog post.
FreeRTOS Roadmap and Code Contribution process.
The FreeRTOS roadmap and code contribution process are now published here and on GitHub. See the blog post.
OPC-UA over TSN with FreeRTOS.
A development project to give applications consistent access to hardware TSN capabilities. See the blog post.

FreeRTOS-Plus-FAT SL Configuration

config_fat_sl.h

Applications that use FreeRTOS-Plus-FAT SL must provide a very simple header configuration header file called config_fat_sl.h. A template is provided in FreeRTOS-Plus/Source/FreeRTOS-Plus-FAT-SL/config.

The configuration header file contains the following items:

Configuration Constant Description
F_FS_THREAD_AWARE If the file system is accessed from more than one task then F_FS_THREAD_AWARE must be set to 1. If the file system is only going to be accessed from a single task then setting F_FS_THREAD_AWARE to 0 will reduce code size and improve run time.

F_MAX_LOCK_WAIT_TICKS   When F_FS_THREAD_AWARE is set to 1 a FreeRTOS mutex is used to protect file system data structures from being accessed by more than one task simultaniously. F_MAX_LOCK_WAIT_TICKS sets the maximum amount of time a file system API function will wait to obtain the mutex. If the mutex cannot be obtained within this time the API function is aborted.

F_MAX_LOCK_WAIT_TICKS is specified in RTOS ticks. If configTICK_RATE_MS is at or below 1000 then milliseconds can be converted to RTOS ticks by dividing the millisecond value by portTICK_PERIOD_MS. configTICK_RATE_HZ is set in FreeRTOSConfig.h. portTICK_PERIOD_MS is provided by FreeRTOS.

F_MAXPATH A file name, including its full path, cannot be longer than F_MAXPATH characters.

F_SECTOR_SIZE Sets the file system sector size in bytes.

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