Espressif ESP32 SPIRAM test
Overview
This sample allocates memory from internal DRAM and SPIRAM by calling
k_malloc(), frees allocated memory by calling k_free() and
checks if memory can be allocated again. Capability of allocated memory is
decided by ESP_HEAP_MIN_EXTRAM_THRESHOLD. If size is less than
ESP_HEAP_MIN_EXTRAM_THRESHOLD, memory is allocated from internal DRAM. If
size is greater than ESP_HEAP_MIN_EXTRAM_THRESHOLD, memory is allocated from
SPIRAM.
Supported SoCs
The following SoCs are supported by this sample code so far:
ESP32
ESP32-S2
Building and Running
Make sure you have your board connected over USB port.
west build -b esp32_devkitc_wrover samples/boards/esp32/spiram_test
west flash
If using another supported Espressif board, replace the argument in the above command with a proper board name (e.g., esp32s2_saola).
Sample Output
To check output of this sample, run west espressif monitor or any other serial
console program (e.g., minicom, putty, screen, etc).
This example uses west espressif monitor, which automatically detects the serial
port at /dev/ttyUSB0:
$ west espressif monitor
mem test ok! 209
SPIRAM mem test pass
mem test ok! 194
Internal mem test pass