Prompt boot button press and release on ESP32-S3 board

R2026b

Option to enable prompt boot button and release on ESP32 hardware board during flashing

Since R2026b

Model Configuration Pane: Hardware Implementation / Hardware board settings / Target hardware resources / Groups / ESP32-S3 board properties

Description

Your ESP32 hardware board might require you to press the boot button before the hardware enters the flashing mode. Select this option to enable a prompt dialog box that indicates when you need to press and release the boot button. Use this option in the deployment and external mode (Monitor & Tune).

After you enable the option, the following message is displayed before your hardware board enters the flashing mode. You must press the boot button on your hardware and then click OK in the Build Complete dialog box.

Build complete ESP32 hardware board

Keep pressing the boot button and release it once this message is displayed. Ensure to press and release the reset button on your hardware and then click OK in the Download Complete dialog box.

Download complete ESP32 hardware board

Dependencies

To enable this parameter, set Hardware board to ESP32-S3 Series (Arduino Compatible).

Settings

off (default) | on

on: A dialog prompt appears during the build process asking you to press and hold the BOOT button, then press and release the RESET (EN) button, and finally release the BOOT button to enter download mode.
off: No prompt is displayed. The build process assumes the board enters download mode automatically via DTR/RTS hardware control.

Recommended Settings

-No recommended settings.

Programmatic Use

No programmatic use is available.

Version History

Introduced in R2026b