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esp32-core: Document how to disable RTC watchdog timer

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YAMAMOTO Takashi 2020-03-16 23:19:59 +09:00 committed by patacongo
parent f4e7845b85
commit 430a2178fb
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boards/xtensa/esp32/esp32-core/README.txt
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@ -488,6 +488,11 @@ OpenOCD for the ESP32
See https://github.com/espressif/esp-idf/tree/master/components/bootloader
and https://github.com/espressif/esp-idf/tree/master/components/partition_table .
The secondary boot loader by default programs a RTC watchdog timer.
As NuttX doesn't know the timer, it reboots every ~9 seconds. You can
disable the timer by tweaking sdkconfig CONFIG_BOOTLOADER_WDT_ENABLE
and rebuild the boot loader.
Running from IRAM with OpenOCD
------------------------------
Running from IRAM is a good debug option. You should be able to load the