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Version 3.3
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@github-actions github-actions released this 23 Mar 08:09
v3.3
247b2ec

New Features

  • Added flash size options up to 128MB. (#680)
  • Added stub flasher support for ESP32-C2.
  • Added --flash-mmu-page-size option to change flash MMU page size on ESP32-C2.
  • Added address and dummy cycles configuration to SPI flash commands, allowed reading flash SFDP registers.
  • Added target-specific flash frequency options.

espsecure.py

  • Added support for ECDSA P192 and P256 signatures in Secure Boot V2.
  • Refined Secure Boot V2 ECC support.
  • Added support for XTS_AES_128 using 128 bit key FE scheme.

espefuse.py

  • Added execute_scripts nesting support, a script can now be called from another script.
  • Added ESP32-C2 espefuse.py support.
  • Fixed power-out time for VDDQ settings for ESP32-S3.
  • Removed dysfunctional JTAG_SEL_ENABLE on ESP32-C3.
  • Removed unused eFuse fields on ESP32-C3 and ESP32-H2.
  • Added execute_scripts error handling in script files. (espressif/esp-idf#8420)
  • Added support for running multiple commands at once.
  • Added checks for secure download mode.
  • Added a recovery option to fix eFuse blocks after encoding errors.

Internal features

These features are intended for use inside Espressif:

  • Preview support for ESP32-H2-beta2 has been added. This SoC is not generally available, so it is unsupported in this release. Official support will be added in a later esptool.py release.

Bug Fixes

  • Fixed autodetection on ESP32-S2 in USB-OTG mode. (#685)
  • Fixed flash.rodata not being recognized as part of IRAM in the ELF parser.
  • Fixed wrong UART_RXFIFO_CNT_M mask values in the stub flasher.
  • Added overerase detection and a fix sequence for certain XMC flash chips.
  • Allowed USB PID detection for USB-JTAG-Serial mode on lowercase port names.
  • Fixed chip autodetection to work in secure download mode.
  • Fixed wrong firmware image being returned for beta chips.
  • Fixed a wrong bootloader flashing offset on ESP32-S3. (#728)

Miscellaneous Changes

  • Launched a new self-hosted esptool.py documentation and heavily updated its contents.
  • Renamed the ESP8684 target to ESP32-C2 (added alias for compatibility).
  • Added a warning for flash sizes that are not supported by the stub flasher.

Thanks to @ESP32DE, @lucasrangit, @Jason2866, and others for contributing to this release.

Contributors

lucasrangit, ESP32DE, and Jason2866
Assets 5