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Merge branch 'bugfix/efuse_virtual_mode' into 'master'

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efuse: When Virtual eFuses are enabled, seed the virtual values as part of startup code

Closes WIFI-338

See merge request idf/esp-idf!4454
This commit is contained in:
Angus Gratton
2019-03-11 16:33:32 +08:00
parent 048b405296 af1ea9b1b9
commit 9679be19c5
2 changed files with 14 additions and 4 deletions
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10
docs/en/api-reference/system/efuse.rst
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@@ -248,9 +248,15 @@ The number of bits not included in square brackets is free (bits in EFUSE_BLK0 a
Debug eFuse & Unit tests
------------------------
eFuse manager have option :envvar:`CONFIG_EFUSE_VIRTUAL` in Kconfig which will make an operation write is virtual. It can help to debug app and unit tests.
Virtual eFuses
^^^^^^^^^^^^^^
esptool have an useful tool for reading/writing ESP32 eFuse bits - `espefuse.py <https://github.com/espressif/esptool/wiki/espefuse>`_.
The Kconfig option :envvar:`CONFIG_EFUSE_VIRTUAL` will virtualize eFuse values inside the eFuse Manager, so writes are emulated and no eFuse values are permanently changed. This can be useful for debugging app and unit tests.
espefuse.py
^^^^^^^^^^^
esptool includes a useful tool for reading/writing ESP32 eFuse bits - `espefuse.py <https://github.com/espressif/esptool/wiki/espefuse>`_.
::