This worked, setting the bootloader to address 0x00.
Thank you

I tested it with a board with the firmware already loaded through my IDE.
After I upload using flash tool the code doesn't start up.
Are my addresses maybe wrong?

Good day,

I'm trying to download the bin file to an ESP32-S3 on a custom PCB using Flash Download tool v3.9.5 and an ESP-prog, but it does not work.
I am able to upload and run my firmware using Platform,io.

Screenshot 2023-06-22 101858.png

Screenshot 2023-06-22 101945.png

Any suggestions ...

I just moved pins around and kept GPIO0 for the programming only.

I'm trying to program the ESP32-S3-WROOM-1-N8, using Visual Code, Platform Io and the ESP-PROG. The following is my setup in platformio.ini:

[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
debug_tool = esp-prog
debug_init_break = tbreak setup

I've ...

Good day,

We're currently using the ESP32-S3 to receive an image to display.
We've set up the ESP32 as a server and receive data from an Android app based on the BLE_UART example in Arduino IDE.
The image is about 300kb and it takes a few minutes to transfer all of the data.

Is there a better ...

Thank you,

We have moved the pins and it worked, we just wondered why that specific pins didn't work as it should.

We are using pin 43 and 44, the two marked for U0RXD and U0TXD. They are also marked TX and RX on the dev kit.

Hi, I apologize for the unclear schematics. The IC on the right is the SIM7600.
The SIM7600's UART is 1.8V.
For the TX of the sim7600 to the RX of the ESP we used the voltage level shifter as per the SIM7600 datasheet:
lvl shift.png

The problem is that the low bits to the ESP only pulls down to ...

Hi,
I'm using the We are using a ESP32-S3-DEVKITC-1-N8 with the uart connected to a SIM7600E.
uart.png

I can see the TX from the ESP on the RXD of the SIM7600, but we see a signal on the ESP RX as follow:
uart.png

The min is 2.84V.
I'm using Arduino IDE 1.8.19 with the following code for ...