Hello,

I found this video that can help : https://youtu.be/yxU_Kw2de08

I wish Espressif hardware design guides were more verbose about that stuff...

Hi,

I have a similar problem, and I was wondering if there was any way to download my program into RAM ? To at least validate all the ESP32 peripherals on the board.

Thanks for your help.

So,

I changed my ESP32-S3R8V with a S3R2. And I changed the flash IC with an Infineon S25FL512SDSMFB010 which is 3.3V compatible and 64 MB (I could not find anything smaller with the same footprint and available).

And I still get this error at programming :

esptool.py v4.4
Serial port COM11 ...

Just to check if it's not a software error, could you use esptool to write the attached bin file? (esptool.py write_flash 0 hello_world_merged.bin)


I get:

Serial port /dev/ttyACM0
Connecting....
Detecting chip type... ESP32-S3
Chip is ESP32-S3 (revision v0.1)
Features: WiFi, BLE
Crystal is ...

No, you do not. For instance, our ESP32-S3-WROOM-1-N8R8 module has octal PSRAM but quad flash.

Ok. But GPIO 33 to 37 should be free, right ? Im my case they are not.

Hello !

I'm using ESP32-S3R8V.
Datasheet says: It says that internal PSRAM is on octal SPI.
Does it mean that I HAVE TO use an octal SPI link for my external flash also ?

Another thing is that your flash simply may not be compatible with the mode you selected (although from the datasheet, it should support DIO...) Could you try to select any of the other flash SPI modes? (for instance, QIO)

Do you know a list of compatible flash?

Flashing error changed! I don't think I change anything on my part...


esptool.py v4.4
Serial port /dev/ttyACM0
Connecting...
Chip is ESP32-S3 (revision v0.1)
Features: WiFi, BLE
Crystal is 40MHz
MAC: 7c:df:a1:e0:ed:ec
Changing baud rate to 460800
Changed.
Enabling default SPI flash mode ...

Thanks for your help.

GPIO45 is hi on startup. Well actually it's 2.45V because of internal pull-down. Maybe I should decrease R48 (external pull-up).
What is strange is that VDD_SPI is 1.9V instead of 1.8V. It should be working anyway, but it's not normal, right?

P.S.: I tried replacing R48 with ...

I tried flashing via build-in JTAG and it's even worse.


julien@Fozzy:~/Projets/hello_world$ openocd -f board/esp32s3-builtin.cfg -c "program_esp build/hello_world.bin 0x10000 verify exit"
Open On-Chip Debugger v0.11.0-esp32-20221026 (2022-10-26-14:47)
Licensed under GNU GPL v2
For bug reports ...