56 lines
1.4 KiB
ReStructuredText
56 lines
1.4 KiB
ReStructuredText
.. _spiram_test:
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Espressif ESP32 SPIRAM test
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###########################
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Overview
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********
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This sample allocates memory from internal DRAM and SPIRAM by calling
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:c:func:`k_malloc`, frees allocated memory by calling :c:func:`k_free` and
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checks if memory can be allocated again. Capability of allocated memory is
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decided by ESP_HEAP_MIN_EXTRAM_THRESHOLD. If size is less than
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ESP_HEAP_MIN_EXTRAM_THRESHOLD, memory is allocated from internal DRAM. If
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size is greater than ESP_HEAP_MIN_EXTRAM_THRESHOLD, memory is allocated from
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SPIRAM.
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Supported SoCs
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**************
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The following SoCs are supported by this sample code so far:
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* ESP32
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* ESP32-S2
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Building and Running
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********************
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Make sure you have your board connected over USB port.
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.. code-block:: console
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west build -b esp32 samples/boards/esp32/spiram_test
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west flash
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If using another supported Espressif board, replace the argument in the above
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command with a proper board name (e.g., `esp32s2_saola`).
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Sample Output
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=============
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To check output of this sample, run ``west espressif monitor`` or any other serial
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console program (e.g., minicom, putty, screen, etc).
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This example uses ``west espressif monitor``, which automatically detects the serial
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port at ``/dev/ttyUSB0``:
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.. code-block:: console
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$ west espressif monitor
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.. code-block:: console
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mem test ok! 209
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SPIRAM mem test pass
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mem test ok! 194
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Internal mem test pass
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