This application provides an example of FileX stack usage on NUCLEO-C031C6 board, running in standalone mode (without ThreadX). It demonstrates how to create a Fat File system on the internal SRAM memory using FileX.
The application is designed to execute file operations on the SRAM-Disk device, it provides all required software code for properly managing it.
The application’s main calls the MX_FileX_Process() function that handles file operations. At this stage, all FileX resources are created and the SRAM driver is initialized. After that, the MX_FileX_Process will start by formatting the SRAM-Disk using FileX services. The resulting file system is a FAT32 compatible, with 128 bytes per sector.
Upon successful opening of the created SRAM-Disk media, FileX continue with creating a file called “STM32.TXT” into the root directory, then write into it some predefined data. Then file is re-opened in read only mode and content is checked.
As stated earlier, the present application runs in standalone mode without ThreadX, for this reason, the standalone variant of fileX is used, plus the following flags need to be set in fx_user.h:
#define FX_SINGLE_THREAD
#define FX_STANDALONE_ENABLE
Successful operation is marked by a toggling green LED light.
Also, information regarding executing operation on the SRAM-Disk is printed to the serial port.
On failure, an error message is printed to the serial port while the green LED is switched OFF.
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#define FX_DISABLE_ERROR_CHECKING
#define FX_MEDIA_STATISTICS_DISABLE
#define FX_DISABLE_FAST_OPEN
#define FX_DISABLE_BUILD_OPTIONS
#define FX_DISABLE_ONE_LINE_FUNCTION
#define FX_DISABLE_CONSECUTIVE_DETECT
RTOS, ThreadX, FileX, File System, FAT32, SRAM, SRAM-DISK
This example runs on STM32C031C6Tx devices.
This example has been tested with STMicroelectronics NUCLEO-C031C6 boards Revision MB1717 B-01 and can be easily tailored to any other supported device and development board.
This application uses USART2 to display logs, the hyperterminal configuration is as follows:
In order to make the program work, you must do the following: