Espressif Systems ESP Faq page 133

Chapter 4. Software framework
Can ESP32 use LittleFS file system?
Currently, LittleFS is not included in ESP-IDF, but there is a third-party porting component
that can be used directly in ESP-IDF. You can use the
system.
How to check the memory usage (e.g., DRAM, IRAM, rodata) of ESP32 chips?
You can check the estimated occupied static storage of ESP32 chips by inputting the instruction idf.py
size-components under corresponding directories in terminal. You can use
to obtain dynamic applied memory during operation.
What is the available size of RTC RAM in ESP8266 for users?
• The available RTC RAM in ESP8266 for users is '0x200'. Please see descriptions in esp8266.ld.
How to enable exFAT?
CHIP: ESP32
• please modify #define FF_FS_EXFAT 0 as #define FF_FS_EXFAT 1 , please reffer to
for details.
Is there a limit to the number of partitions in the partition table of ESP32?
• The length of partition table is 0xC00 bytes (can store up to 95 partition table entries). Please refer to the
description in partition
How to read the remaining memory of the ESP32 chip?
• The remaining memory of the chip RAM can be read through esp_get_free_heap_size().
What should I pay attention to when using xTaskCreateStatic() in ESP-IDF?
• Please refer to xTaskCreateStatic()
4.9 System
Espressif Systems
table.
introduction.
116
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mklittlefs tool for the image of LittleFS file
heap_caps_get_info
esp_littlefs
ffconf.h
Release master