MMCSD FILE IO

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example demonstrates file I/O operations using the FreeRTOS+FAT file system to the SD Card inserted. The MMCSD instance and the media connected to it are selectable via Sysconfig. In the Sysconfig of the example, user just needs to add the FreeRTOS+FAT module. The MMCSD module instance will be added automatically.

The example initially checks for a FAT partition in the media. If it doesn't find one, a 128 MB partition is created (FAT16). Then a file is created and some known data is written to that. Then the file is closed and re-opened for read back. The file is then read back and compared with the known data.

When the comparison match, test result is passed otherwise failed.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0 nortos
Toolchain	ti-arm-clang
Board	am64x-evm
Example folder	examples/drivers/mmcsd/mmcsd_file_io

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

See Also

MMCSD

Sample Output

[MMCSD FILE IO] Starting...
All tests have passed!!