esp-develop-9.2.2-20250817

• Added CAN (TWAI) peripheral emulation (#101)
• Fixed reset/default value for SYSTIMER_CONF register (#120)
• Fixed PSRAM emulation when 80MHz speed is enabled (#57)
• Fixed bugs related to timings of TimerGroup on ESP32-C3
• Fixed an issue that some interrupts were lost on ESP32-C3
• Improved flash decryption speed on ESP32
• Refactored ESP drivers to use the new three-stage reset framework

esp-develop-9.2.2-20250228

• Upgraded to QEMU 9.2.2.
• Inherited fixes for various build issues from the upstream.
• Binary releases for Linux now require GLIBC version >= 2.31. This change is due to the upstream QEMU requirement of Glib-2.0 >= 2.66.0. These binaries won't work on older distributions such as Ubuntu 20 or Debian 10.
• Added support for 256-bit XTS-AES keys on ESP32-S3.
• Added support for SHA-384, SHA-512, and SHA-512/t on ESP32-S3.
• Added support for virtual RGB LCD on ESP32-S3.
• Added support for quad and octal PSRAM on ESP32-S3.
• Fixed system reset failure from bootloader_reset API on ESP32-S3.
• Fixed ESP32-S3 efuse emulation.
• Fixed OpenCores Ethernet driver to use the MAC address specified on the command line.
• Refactored emulation of several peripherals common to ESP32-C3 and ESP32-S3: HMAC, SHA, AES, Digital Signature, RSA, GDMA, SysTimer. These peripherals now have common implementations between chips.

Thanks to @Harshal5, @o-marshmallow, @dmitry1945, @Throows and @muggenhor for contributing to this release!

esp-develop-9.0.0-20240606

• Rebased on top of QEMU v9.0.0, fixed breakage/deprecations
• Added initial ESP32-S3 support (#42)
• Added support for -bios and -kernel options for ESP32-C3
• Fixed SDMMC emulation to be compatible with IDF v5.2
• Lowered minimum required glibc version on Linux by using Ubuntu 18 in CI

Thanks to @dmitry1945, @o-marshmallow, @antmak for contributing to this release!

esp-develop-8.2.0-20240122

• Rebased on top of QEMU v8.2.0, fixed breakage/deprecations
• Added emulation of XTS_AES peripheral for ESP32-C3
• Added Flash Encryption emulation for ESP32-C3
• Added support for 16bpp color format for the virtual RGB panel
• Fixed compilation warnings in several files
• Fixed emulation of SPI flash read operations for ESP32-C3 when Flash Encryption is enabled
• Fixed emulation of RTC_CNTL scratch registers for ESP32-C3
• Fixed an issue with clearing Systimer comparator interrupts for ESP32-C3
• Fixed an issue with reading stale values from eFuse for ESP32-C3
• Fixed the two CPUs on the ESP32 not seeing the same state of variables in PSRAM

Thanks to @o-marshmallow, @Harshal5 and @horw for contributing to this release.

esp-develop-8.1.3-20231206

• Rebased on top of QEMU 8.1.3
• Added binary releases for Windows, Linux (x86_64 and arm64), macOS (x86_64 and arm64)
• Fixed build for 32-bit platforms (#86)
• Added virtual RGB display peripheral for ESP32 and ESP32-C3
• Fixed emulation of ESP32-C3 eFuse
• Added an option to disable the ESP32-C3 watchdog timer from command line

Thanks to @o-marshmallow, @greenaddress and @antmak for contributing to this release.

esp-develop-8.1.2-20231017

• Rebased on top of QEMU 8.1.2
• --version output now shows ESP-specific version name (esp-develop-8.1.2-20231017)
• Made improvements and fixed bugs in the emulation of ESP32-C3 peripherals
  • UART (#79)
  • strapping mode (#75)
  • TGWDT
  • SPI, in particular the handling of dummy cycles
  • reset and RTC_CNTL
• Added ESP32-C3 peripherals:
  • GDMA, including GDMA support in SHA and AES peripherals
  • RSA
  • HMAC
  • Digital Signature
  • Opencores Ethernet MAC emulation for ESP32-C3, via an unused portion of the address space. Requires the related IDF commit

Thanks to @o-marshmallow, @Harshal5 and @antmak for contributing to this release.

esp-develop-8.0.0-20230522

• Rebased on top of QEMU 8.0.0
• Added initial ESP32-C3 support (thanks @o-marshmallow)
• Fixed issue with reading multiple bytes over I2C (#61, thanks @knw1)
• Fixed loading of images with size other than 4 MB (#68, thanks @listout)
• Fixed CPU clock setting (#72, thanks @lcgamboa)
• Fixed initialization of SPI USER2 register (thanks @Harshal5)
• Fixed incorrect error report when writing eFuses

esp-develop-7.2.0-20230223

• Rebased on top of QEMU 7.2.0.
• Added LEDC controller emulation (thanks @KaryFeever)
• Fixed key reversal in flash encryption emulation.
• Fixed UART IRQ behavior (#55, thanks @andreyeltsov)
• Fixed 100% CPU load when running a single-core application (#56, thanks @andreyeltsov)
• Changed the OS version used to build release binaries to Ubuntu 18 (thanks @antmak)

esp-develop-20220919

• Rebased on top of QEMU 7.1.0. Fixed breakage/deprecations.
• Added no-op stubs for RMT, PCNT, and LEDC peripherals (#44).
• Fixed implementation of the SHA peripheral, now multiple concurrent operations with different SHA algorithms are supported (thanks @KaryFeever)

esp-develop-20220802

• Rebased on top of QEMU 7.0.0. Fixed breakage/deprecations. This also fixes #35.
• Fixed cache flush emulation (#46).
• Fix trans_done not updated in the SPI peripheral (#39, #40, thanks @amirgon)
• Fix loading of ELF files via the -kernel argument (thanks @Lapshin)
• Added emulation of the AES peripheral (thanks @KaryFeever)