48df1a2f2e
Implemented a sample that shows configuration and basic usage of monitor mode debugging feature. Signed-off-by: Piotr Jasiński <piotr.jasinski@nordicsemi.no>
43 lines
1.1 KiB
ReStructuredText
43 lines
1.1 KiB
ReStructuredText
.. _debugmon-sample:
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Debug monitor
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#############
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Overview
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********
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The Debug Monitor sample shows a basic configuration of debug monitor feature.
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The source code shows how to:
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#. Configure registers to enable degugging in debug monitor mode
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#. Specify custom interrupt to be executed when entering a breakpoint
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.. _debugmon-sample-requirements:
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Requirements
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************
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Your board must:
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#. Support Debug Monitor feature (available on Cortex-M processors with the exception of Cortex-M0)
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#. Have an LED connected via a GPIO pin (these are called "User LEDs" on many of
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Zephyr's :ref:`boards`).
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#. Have the LED configured using the ``led0`` devicetree alias.
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Building and Running
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********************
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Build and flash Debug Monitor as follows, changing ``reel_board`` for your board:
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.. zephyr-app-commands::
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:zephyr-app: samples/subsys/debug/debugmon
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:board: reel_board
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:goals: build flash
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:compact:
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After flashing the board enters a breakpoint and executes debug monitor exception code.
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The LED starts to blink, indicating that even though the processor spins in debug monitor
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interrupt, other higher priority interrupts continue to execute.
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