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The build system automatically determines offsets of partitions from the partition table, so no manual changes are needed. Instead, add a note that partition offsets may need to be updated when increasing the bootloader size. |
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| .. | ||
| main | ||
| CMakeLists.txt | ||
| Makefile | ||
| partitions_example.csv | ||
| README.md | ||
| sdkconfig.defaults | ||
Partition Read, Write, Erase Example
This example demonstrates how to perform partition read, write and erase operations using API functions esp_partition_read, esp_partition_write and esp_partition_erase.
Example Flow
The example uses a custom partition table, with a data partition storage used as the demo partition. For the most part the example code is well-commented so users should be able to follow along the code easily. Nevertheless, this section provides an overview of the code flow.
The partition table is searched for the storage partition. Once found, the entire partition is erased using esp_partition_erase_range. Sample data is written using esp_partition_write
and read back using esp_partition_read, verifying the read and written data match. The partition is erased once again using esp_partition_erase_range, limited to the sector the sample data was written to.
Output
I (588) example: Written data: ESP-IDF Partition Operations Example (Read, Erase, Write)
I (588) example: Read data: ESP-IDF Partition Operations Example (Read, Erase, Write)
I (638) example: Erased data
I (638) example: Example end
Others
Detailed functional description of partition API is provided in documentation.
See the README.md file in the upper level 'examples' directory for more information about examples.