mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
de2b1cb02a
Add a command `make erase_ota` - erases otadata if it there is in the partition table otherwise error 'Partition table does not have ota_data partition'. Closes https://github.com/espressif/esp-idf/issues/1821
77 lines
2.9 KiB
ReStructuredText
77 lines
2.9 KiB
ReStructuredText
Build and Flash with Make
|
|
=========================
|
|
:link_to_translation:`zh_CN:[中文]`
|
|
|
|
|
|
Finding a project
|
|
-----------------
|
|
|
|
As well as the `esp-idf-template <https://github.com/espressif/esp-idf-template>`_ project, ESP-IDF comes with some example projects on github in the :idf:`examples` directory.
|
|
|
|
Once you've found the project you want to work with, change to its directory and you can configure and build it.
|
|
|
|
|
|
Configuring your project
|
|
------------------------
|
|
|
|
::
|
|
|
|
make menuconfig
|
|
|
|
|
|
Compiling your project
|
|
----------------------
|
|
|
|
::
|
|
|
|
make all
|
|
|
|
... will compile app, bootloader and generate a partition table based on the config.
|
|
|
|
|
|
Flashing your project
|
|
---------------------
|
|
|
|
When ``make all`` finishes, it will print a command line to use esptool.py to flash the chip. However you can also do this from make by running::
|
|
|
|
make flash
|
|
|
|
This will flash the entire project (app, bootloader and partition table) to a new chip. Also if partition table has ota_data then this command will flash a initial ota_data.
|
|
It allows to run the newly loaded app from a factory partition (or the first OTA partition, if factory partition is not present).
|
|
The settings for serial port flashing can be configured with `make menuconfig`.
|
|
|
|
You don't need to run ``make all`` before running ``make flash``, ``make flash`` will automatically rebuild anything which needs it.
|
|
|
|
|
|
Compiling & Flashing Just the App
|
|
---------------------------------
|
|
|
|
After the initial flash, you may just want to build and flash just your app, not the bootloader and partition table:
|
|
|
|
* ``make app`` - build just the app.
|
|
* ``make app-flash`` - flash just the app.
|
|
|
|
``make app-flash`` will automatically rebuild the app if it needs it.
|
|
|
|
There's no downside to reflashing the bootloader and partition table each time, if they haven't changed.
|
|
|
|
|
|
The Partition Table
|
|
-------------------
|
|
|
|
Once you've compiled your project, the "build" directory will contain a binary file with a name like "my_app.bin". This is an ESP32 image binary that can be loaded by the bootloader.
|
|
|
|
A single ESP32's flash can contain multiple apps, as well as many kinds of data (calibration data, filesystems, parameter storage, etc). For this reason, a partition table is flashed to offset 0x8000 in the flash.
|
|
|
|
Each entry in the partition table has a name (label), type (app, data, or something else), subtype and the offset in flash where the partition is loaded.
|
|
|
|
The simplest way to use the partition table is to `make menuconfig` and choose one of the simple predefined partition tables:
|
|
|
|
* "Single factory app, no OTA"
|
|
* "Factory app, two OTA definitions"
|
|
|
|
In both cases the factory app is flashed at offset 0x10000. If you `make partition_table` then it will print a summary of the partition table.
|
|
|
|
For more details about :doc:`partition tables <../api-guides/partition-tables>` and how to create custom variations, view the :doc:`documentation <../api-guides/partition-tables>`.
|
|
|