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@projectgus projectgus released this Jul 18, 2019 · 6 commits to master since this release

Features

  • New option write_flash --flash-size keep will keep whatever flash size is set in the bootloader header, matching the behaviour of --flash-mode keep and --flash-speed keep. The default is still --flash-size detect but may be changed to keep in a future major update, to be consistent with the other two options.
  • write_flash no longer updates the flash header if the file being written to the bootloader offset isn't a valid image file for the chip. This is useful for flashing pre-encrypted data to ESP32s, where the image file contains ciphertext.
  • esptool now always prints the detected crystal frequency (26MHz or 40MHz) as part of general chip information, and will warn if the detected frequency deviates by an unexpected amount.
  • Passing arguments to main() from Python is now documented in the README (#408)

Bug Fixes/Changes

  • elf2image --sha256-offset will now only write the ELF SHA-256 to this offset if the existing data is all zeroes. Otherwise a warning is printed.
  • Improved the error message if esptool searches all serial ports and finds nothing. (#401)

ESP32 Only

Features

  • New write_flash --encrypt option that works with the new Development Mode flash encryption that will be the default flash encryption development workflow in ESP-IDF V4.0.
  • espefuse.py summary --format json will print a JSON dictionary of efuse summary data (#436)
  • espefuse.py burn commands now set the efuse timing before burning, in line with recent ESP32 TRM update.
  • espsecure.py key operations now support --keylen argument, allowing 192-bit keys for ESP32s with 3/4 Coding Scheme set.
  • espsecure.py encryption and decryption speed substantially improved. (#416)

Bug Fixes/Changes

  • FLASH_CRYPT_CNT efuse is now defined as 7 bits wide, as eight bit is not used by flash encryption hardware.

ESP8266 Only

Bug Fixes/Changes

  • Flasher stub is now built with gcc 5.2.0 toolchain.

Thanks to @grandcat, @darkfader, @tim-nordell-nimbelink, @sbertrand-witekio, @marcelstoer, @eykamp, @cclauss for contributing to this release.

Assets 2

@projectgus projectgus released this Jan 9, 2019 · 30 commits to master since this release

Features

  • New write_flash --erase-all ... option to erase all flash before writing (single command). (#344)
  • Support patching the SHA256 digest of the ELF file into the binary (available in ESP-IDF via app description APIs)
  • Make calling esptool module functions and esptool.main() more Python-friendly (all functions clean up open files correctly, main(...) can take an optional argument with a command line formatted as a list.) (#341)

Bug Fixes/Changes

  • Fix crash due to unimplemented write timeout on RFC2217 ports
  • elf2image no longer adds empty ELF sections (zero length) to the .bin file
  • elf2image fails with a proper error if an ELF file contains more than 16 loadable sections
  • Improve error message if list_ports is missing from pyserial (#350)
  • Fix some write_flash timeouts writing large but highly compressible payloads

ESP8266 Only

  • Fix bug where flashing with stub would fail if ESP8266 was in deep sleep immediately beforehand. (#351)

ESP32 Only

Features

  • Support for reading/writing efuses when 3/4 Coding Scheme is set details.
  • espefuse.py supports displaying and setting a custom MAC address in BLK3 of efuse
  • espsecure.py can now verify signatures with raw binary key file as well as PEM formatted key file (#357)

Bug Fixes/Changes

  • Workaround a mapping bug in the ESP-IDF bootloader (if IROM/DROM segment ended less than 0x20 bytes after a page boundary, older ESP-IDF bootloaders would not map the final page correctly).
  • Reformat espefuse.py summary output (includes: read-only efuses now display value ? not 0, byte order of keys shown for BLK1,BLK2 are now shown in software order not the reversed byte order used by hardware cryptographical modules.)
  • espsecure.py: Fix Python 3 compatibility issues (includes #369 #382)

Special thanks to @Callahan93 and @borro0 for contributing to this release.

Assets 2

@projectgus projectgus released this Sep 27, 2018 · 64 commits to master since this release

Bug fixes:

  • Errors during chip detection are now formatted correctly.
  • OSError is handled correctly while scanning for a port (#322)
  • Update link to flashrom repo for SPI flash chip IDs (#338)
  • read_flash command: Error out immediately if an invalid length packet is received (common symptom of bad serial link) (#342)

ESP32 Only:

  • espefuse.py: Disable burning key efuses when 3/4 Coding Scheme is set (support for burning keys with 3/4 Coding Scheme will be added in a future update).

Thanks to @orangecms for contributing to this release.

Assets 2

@projectgus projectgus released this Jun 18, 2018 · 76 commits to master since this release

Bug fixes:

  • --port argument was not correctly handled in v2.4.0
  • Corrected pyserial dependency to require pyserial v3.0 or newer

Thanks to @nopdotcom and @ildar for contributing to this release.

Assets 2

@projectgus projectgus released this Jun 13, 2018 · 81 commits to master since this release

Version 2.4.0:

ESP8266 & ESP32 changes

  • If no serial port is specified, try all serial ports until an Espressif
    device responds.
  • Print device MAC on every command, after connecting.
  • New option --before no_reset_no_sync for use when immediately reusing the
    serial port with an already-running loader.
  • Fix spurious load_ram error when executed code immediately resets the UART
    baud rate..
  • Produce an error if load_ram is going to clobber bootloader stub memory (can use
    --no-stub to work around this).
  • Display a helpful error if the incompatible 'serial' module was installed
    instead of 'pyserial'.
  • Explicitly close the serial port at end of main() function (allows calling
    esptool.main() from another Python program for basic scripting.)
  • Workaround Windows usbser.sys (USB CDC-ACM device) driver bug setting DTR & RTS
  • Flasher stub build updates to work with recent ESP-IDF & ESP8266 SDK headers
  • Flasher stub now sends correct length field in protocol responses (esptool.py
    was ignoring this field, but some other tools were not).

ESP8266 changes

  • Move the loader stub to the very end of IRAM (useful when using load_ram command).
  • elf2image --version=2 is now compatible with recent ESP8266 SDK bootloader
    and produces the same binary output as ESP8266 SDK gen_app.py.
  • Remove unsupported flash size 4MB-c2

ESP32 changes

  • Print chip frequency rating values in Features list, for chips where these are
    set.
  • Working load_ram command.
  • espefuse.py: Support setting the baud rate.
  • New --override-vddsdio option allows setting the VDDSDIO regulator to 1.8V,
    1.9V or "OFF" when connecting (to override the default value read from efuse).
    To avoid hardware damage, forcing VDDSDIO to 3.3V is not supported.

Thanks to @devanlai, @andrewwakeling, @Callahan93, @tim-nordell-nimbelink, @cefn
and @nkolban for contributing to this release.

Assets 2
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