iram0_0_seg – IRAM OVERFLOWED: Could you optimize the program code to use slightly less IRAM memory?

[Knottis]

IRAM OVERFLOWED: Could you optimize the program code to use slightly less IRAM memory

I have now used ChatGPT‑5 to get my Guitar-Project "up and run!".. which I have been tinkering with for the past five years, — and I have finally managed to get Beep() working both with and without signal on the Bluetooth input.

However, when merging all of my small functions into my 'Small‑sized' program, I can no longer compile the code due to CPU memory overflow.

Could you check whether it is possible to optimize your library code to use less IRAM memory?

#include <AudioTools.h>
#include <BluetoothA2DPSink.h> => I'am only using the "Bluetooth Classic" !..

😳From Wikipedia:
IRAM (Instruction RAM) is a memory area where functions that must run quickly are stored — typically interrupts and Wi‑Fi functions.

---

- Arduino IDE 2.3.6
- ESP32 Ver. 3.3.0

name=audio-tools
version=1.1.2

name=ESP32-A2DP
version=1.8.7

---

########################################################################
ld.exe: region iram0_0_seg' overflowed by 9728 bytes collect2.exe: error: ld returned 1 exit status.
########################################################################

#include <Time.h>
#include <EEPROM.h>
#include <Wire.h>
#include <RTClib.h>

#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <HTTPClient.h>
#include <HTTPUpdate.h>

#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>

#include <FastLED.h>
#include <math.h>

#include <AudioTools.h>
#include <BluetoothA2DPSink.h>

########################################################################

---

🙏 I really hope that you and yours can take some time to optimize IRAM so it will be a little easier for us users to get this to run together but the rest of the useful libraries that you need to make a small working program!.

Best regards 😉

[pschatzmann]

My libraries are aleady optimized and I am sure the issue is in your sketch:

• You can't allocate more RAM than you have!
• Use an ESP32 with PSRAM, Activate PSRAM and use a Vector from AudioTools instread of C arrays. Alternatively you can use the PSRAM functionality from this library.