Download FreeRTOS
 

Quality RTOS & Embedded Software

LIBRARIES
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.

Mounting a Formatted Partition
Creating a FreeRTOS-Plus-FAT Media Driver

Once a partition has been formatted it can be mounted. The FF_Mount() function is used for this purpose.

As an example, below is the outline of the prvMountPartition() function used by FreeRTOS-Plus-FAT's RAM disk driver. prvMountPartition() is called by the RAM disk's initialisation function and demonstrates how to use the FF_Mount() function. See the file ff_ramdisk.c in the FreeRTOS-Plus/Source/FreeRTOS-Plus-FAT/portable/common directory for the full version. 



static BaseType_t prvMountPartition( FF_Disk_t *pxDisk, BaseType_t xPartitionToMount )

{

FF_Error_t xError;

BaseType_t xReturn;



    /* Record the partition number the FF_Disk_t structure is managing. */

    pxDisk->xStatus.bPartitionNumber = xPartitionToMount;



    /* Mount the partition. */

    xError = FF_Mount( pxDisk->pxIOManager, xPartitionToMount );



    if( FF_isERR( xError ) == pdFALSE )

    {

        /* Record that the partition is now mounted. */

        pxDisk->xStatus.bIsMounted = pdTRUE;

        xReturn = pdPASS;

    }

    else

    {

        xReturn = pdFALSE;

    }



    return xReturn;

}




Mounting a Partition


Adding a Partition to the Virtual File System

FreeRTOS-Plus-FAT implements a virtual file system, in which each mounted partition appears as a directory. Mounted partitions are added to the virtual file system using the ff_fs_add() function.








Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.