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docs: mention ESP32 ECO3 in relation to PSRAM cache workarounds

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Ivan Grokhotkov 2020-05-18 13:45:17 +02:00
parent 514596cb81
commit e4e51fd97a
2 changed files with 6 additions and 0 deletions
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docs/en/api-guides/external-ram.rst
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@ -131,3 +131,4 @@ External RAM use has the following restrictions:
.. include:: inc/external-ram-esp32-notes.rst
.. _ESP32 ECO: https://www.espressif.com/sites/default/files/documentation/eco_and_workarounds_for_bugs_in_esp32_en.pdf
.. _ESP32 ECO V3 User Guide: https://www.espressif.com/sites/default/files/documentation/ESP32_ECO_V3_User_Guide__EN.pdf

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docs/en/api-guides/inc/external-ram-esp32-notes.rst
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@ -21,3 +21,8 @@ Aside from linking to a recompiled version of Newlib with the additional flag, E
- Avoids using some ROM functions
- Allocates static memory for the WiFi stack
ESP32 rev v3
------------
ESP32 revision 3 ("ECO V3") fixes the PSRAM cache issue found in rev. 1. When :ref:`CONFIG_ESP32_REV_MIN` option is set to rev. 3, compiler workarounds related to PSRAM will be disabled. For more information about ESP32 ECO V3, see `ESP32 ECO V3 User Guide`_.