Ask issue: ESP32 C3 MINI ROM consumption is Enormous with BLE in Sample GATT client project . Unable to get the ROM consumption break down from EPS espressif resources

[yshivam909]

ESP-IDF Sample GATT Client project

• Chip used: ESP32 C3 Mini
• SDK version V4.4

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• Q: I am using the BLE bluedroid stack for BLE central application. The sample code for GATT client itself take 1.2MB of ROM . Unable to track where all the ROM get consumed in sample project only . So any information for storage consumption of BLE Stack & Library files will be helpful . In the further stage of project , I will also be adding Wifi & OTA part . Knowing the sample projects itself has consumed 1.2MB ROM .Is it feasible ?

[yshivam909]

Memory Requirement – GattClient Sample project

Used stat D/IRAM: 84132 bytes ( 243548 remain, 25.7% used) ------ 82KB

  .data size:    9076 bytes

  .bss  size:   17200 bytes

  .text size:   57856 bytes

Used Flash size : 1246800 bytes ------1MB

  .text     :  539000 bytes

  .rodata   :  117720 bytes

Total image size: 1313732 bytes (.bin may be padded larger)

[yshivam909]

I have also made a "Simple" app for the ESP32 with a Web Interface to change data and a BLE Interface to read it, and the size is almost 1.5 MB!

The library sizes really limit the applications that the ESP32 can be used for - certainly no real commercial applications.

[zztiger123]

Hi yshivam909

About ESP technical issue, you can raise an issue on ESP-IDF github, the link is as follows: https://github.com/espressif/esp-idf/issues

you can try to enable the "Optimize for size (-Os)" option(menuconfig -> Compiler option -> Optimization Level -> Optimize for size (-Os)) to reduce the firmware size.