mmccard_fatfs#
Overview#
The MMCCARD FATFS project is a demonstration program that uses the SDK software. Tt mounts a file system based on a MMC card then does “creat directory/read directory/create file/write file/read file” operation. The file sdhc_config.h has default SDHC configuration which can be adjusted to letcard driver has different performance. The purpose of this example is to show how to use MMCCARD driver based FATFS disk in SDK software.Note:User can use MMC plus card or emmc(on board IC, but not recommand use emmc socket,due to high speed timing restriction)
Supported Boards#
EVK-MIMXRT595
Hardware requirements
Micro USB cable
EVK-MIMXRT595 REV C1 board
Personal Computer
Board settings
Make sure resistors R691~R697 are removed and resistors R611~R620,R660,R661,R698 are populated.
Prepare the Demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J40) on the board
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the demo runs successfully, the log would be seen on the terminal like:
FATFS example to demonstrate how to use FATFS with MMC card.
Make file system......The time may be long if the card capacity is big.
Create directory......
Create a file in that directory......
List the file in that directory......
General file : F_1.DAT.
Write/read file until encounters error......
Write to above created file.
Read from above created file.
Compare the read/write content.
The read/write content is consistent.
Input 'q' to quit read/write.
Input other char to read/write file again.
MIMXRT700-EVK
Hardware requirements
Micro USB cable
MIMXRT700-EVK board
Personal Computer
Board settings
Prepare the Demo
Connect a micro USB cable between the PC host and the MCU-LINK USB port on the board
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Launch the debugger in your IDE to begin running the demo.
Running the demo
When the demo runs successfully, the log would be seen on the terminal like:
FATFS example to demonstrate how to use FATFS with MMC card.
Make file system......The time may be long if the card capacity is big.
Create directory......
Create a file in that directory......
List the file in that directory......
General file : F_1.DAT.
Write/read file until encounters error......
Write to above created file.
Read from above created file.
Compare the read/write content.
The read/write content is consistent.
Input 'q' to quit read/write.
Input other char to read/write file again.