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MCUXpresso_MIMXRT1021xxxxx/boards/evkmimxrt1020/sdmmc_examples/sdcard_fatfs
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Yilin Sun 763d32be90
Updated SDK to v2.15.000 
Signed-off-by: Yilin Sun <imi415@imi.moe>
 		2024-03-15 22:23:36 +08:00
..
armgcc Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
board.c Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
board.h Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
clock_config.c Updated to SDK v2.14.0 2023-08-31 23:30:31 +08:00
clock_config.h Updated to SDK v2.14.0 2023-08-31 23:30:31 +08:00
dcd.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
dcd.h Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
evkmimxrt1020_sdram_init.jlinkscript Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
ffconf.h Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
pin_mux.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
pin_mux.h Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
readme.md Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
sdcard_fatfs.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
sdcard_fatfs_v3_14.xml Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
sdmmc_config.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
sdmmc_config.h Updated to SDK v2.14.0 2023-08-31 23:30:31 +08:00

readme.md

Overview

The SDCARD FATFS project is a demonstration program that uses the SDK software. It mounts a file system based on a SD 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 let card driver has different performance. The purpose of this example is to show how to use SDCARD driver based FATFS disk in SDK software.

SDK version

  • Version: 2.15.000

Toolchain supported

  • IAR embedded Workbench 9.40.1
  • Keil MDK 5.38.1
  • GCC ARM Embedded 12.2
  • MCUXpresso 11.8.0

Hardware requirements

  • Mini/micro USB cable
  • EVK-MIMXRT1020 board
  • Personal Computer
  • SD card

Board settings

Please insert the SDCARD into card slot(J15), make sure C28 is welded. Note: If you want to use a SD3.0 card with SD3.0 protocol, just insert a SD3.0 card into the card slot will be ok.

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the OpenSDA USB port on the board.
  2. Open a serial terminal on PC for OpenSDA serial device with these settings:
    • 115200 baud rate
    • 8 data bits
    • No parity
    • One stop bit
    • No flow control
  3. Insert SD card to card slot
  4. Download the program to the target board.
  5. Either press the reset button on your board or 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 SD card.

Please insert a card into board.
Detected SD card inserted.

Makes file system......This time may be long if the card capacity is big.

Creates directory......

Creates a file in that directory......

Lists the file in that directory......
General file : F_1.DAT.
Directory file : DIR_2.

Writes/reads file until encounters error......

Writes to above created file.
Reads from above created file.
Compares the read/write content......
The read/write content is consistent.
Input 'q' to quit read/write.
Input other char to read/write file again.

Note: To debug in qspiflash, following steps are needed:

  1. Select the flash target and compile.
  2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
  3. Start debugging in IDE.
    • Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.