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45 lines
1.4 KiB
Markdown
45 lines
1.4 KiB
Markdown
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C5 | ESP32-C6 | ESP32-C61 | ESP32-H2 | ESP32-H21 | ESP32-H4 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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| ----------------- | ----- | -------- | -------- | -------- | -------- | --------- | -------- | --------- | -------- | -------- | -------- | -------- |
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# FATFS minimal example
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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This example demonstrates the minimal setup required to store persistent data on SPI Flash using the FAT filesystem.
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Beware that the minimal required size of the flash is 4 MB.
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## How to use example
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### Build and flash
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To run the example, type the following command:
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```CMake
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# CMake
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idf.py -p PORT flash monitor
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```
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
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## Example output
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Here is the example's console output:
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```
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...
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I (321) example: Mounting FAT filesystem
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I (331) example: Filesystem mounted
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I (331) example: Opening file
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I (731) example: File written
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I (731) example: Reading file
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I (741) example: Read from file: 'Hello World!'
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I (741) example: Unmounting FAT filesystem
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I (851) example: Done
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...
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```
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The logic of the example is contained in a [single source file](./main/fatfs_getting_started_main.c),
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and it should be relatively simple to match points in its execution with the log outputs above.
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