That module doesn't have octal flash; it has octal PSRAM. If you're not using PSRAM in your program, you can use those pins as the octal PSRAM is never selected. Thanks for your response. Sorry for the typo, I meant octal PSRAM. I corrected the post. But I still do not understand why these pins do ...

Hi, ESP32 S3 datasheet specifies that pins 35-37 on octal PSRAM S3 modules are not accessible. I have confirmed that working with any octal PSRAM DevKit that I have. However, I have designed and manufactured a PCB that has an octal PSRAM S3 module on it (ESP32-S3-WROOM-1U-N16R8) and it turns out tho...

Thanks a lot for taking the time. Is it correct to say that by disabling this , I just disable the capability to add an external PSRAM to the board? it does not affect the normal PSRAM operation internally in the chip, right? I really appreciate if you could give me more info about how to reassign S...

Do I need to have access to PSRAM? Can I disable that so I can use the pins?

Hi @meisner

I am having the same issue. trying to get pins 36 and 37 to work with I2C. Could you please explain a bit more about how you solved this problem.
How do you disable that feature to free up the pins? I am using Arduino code to flash.

Thanks

Hi I am reading a gps module data. I have a code that runs properly using pins (7,8) for I2c communication on ESP32S3 R8 on my prototype board. However, on the designed pcb, the I2C pins have changed to pins (36,37). This change has made gps stop working. I did try the same (36,37) pins on my protot...

Hi I have a very generic cpp code in ESP IDF to be used for a multi rate task program on ESP32 S3. The code has a base rate of 1 ms and rate1 of 10 ms. The code builds with no error. However, the board keeps rebooting with the following error: --------------------------------------------------------...

thanks for the response. Backtrace: 0x42017746:0x3fcf5dc0 0x42016d46:0x3fcf5de0 0x42035667:0x3fcf5e00 0x4200d12f:0x3fcf5e20 0x4200a66b:0x3fcf5e40 0x420097e2:0x3fcf5e60 0x420569e3:0x3fcf5e80 0x40380b5d:0x3fcf5eb0 0x42017746: lv_obj_mark_layout_as_dirty at C:/Espressif/frameworks/esp-idf-v5.0.1/worksp...

I am designing a user interface to run a LCD. the code builds and flashes with no error. however, the LCD keeps rebooting with the following error: Guru Meditation Error: Core 0 panic’ed (LoadProhibited). Exception was unhandled. Core 0 register dump: PC : 0x42017789 PS : 0x00060f30 A0 : 0x82016d89 ...

Thanks for your help.
I am new to this and I really appreciate if you could help me a bit further. What do you exactly mean by "dangling pointer"? how would I know if I have it somewhere? and How would I avoid it?

Thanks