v0.6.0-alpha.2

v0.6.0-alpha.2 release.

Please, read the getting started guide for flashing instructions.

A number of Linux artifacts has not been published with this release, since they require a very specific Mbed-TLS version.

CHANGELOG

Fixed

• Fixed a bug where guards would raise exceptions instead of just being false
• Fixed support for big endian CPUs (such as some MIPS CPUs).
• Fixed STM32 not aborting when AVM_ABORT() is used
• Fixed a bug that would leave the STM32 trapped in a loop on hard faults, rather than aborting
• Fixed a bug that would make the VM to loop and failing to process selected fds on Linux
• Fixed classes of exceptions in estdlib.
• Fixed STM32 code that was hard coded to the default target device, now configured based on the cmake -DDEVICE= parameter
• Fixed hard fault on STM32 durung malloc on boards with more than one bank of sram
• Fixed invalid src_clk error on ESP-IDF >= 5.0
• Fixed changed default to AVM_USE_32BIT_FLOAT=on for STM32 platform to enable use of single precision hardware FPU on F4/F7 devices.
• Fixed a bug where emscripten register_*_callback/1 functions would use x[1] as second argument
• Fixed precision of integers used with timers which could yield to halts and wait times smaller than expected
• Add support for ESP32-C6

Changed

• Crypto functions on generic_unix platform now rely on MbedTLS instead of OpenSSL
• Platform function providing time used by timers was changed from sys_monotonic_millis to sys_monotonic_time_u64, sys_monotonic_time_u64_to_ms and sys_monotonic_time_ms_to_u64.
• Implement atomvm:random/0 and atomvm:rand_bytes/1 on top of crypto:strong_rand_bytes/1 on
  generic_unix, ESP32 and RP2040 platforms.
• Performance improvements

Added

• Added support for the OTP socket interface.
• Enhancd performance of STM32 by enabling flash cache and i-cache with branch prediction.
• Added cmake configuration option AVM_CONFIG_REBOOT_ON_NOT_OK for STM32
• New gpio driver for STM32 with nif and port support for read and write functions.
• Added support for interrupts to STM32 GPIO port driver.
• Added suppoprt for PicoW extra gpio pins (led) to the gpio driver.
• Added support for net:getaddrinfo/1,2
• Added minimal support for the OTP ssl interface.
• Added support for crypto:one_time/4,5 on Unix and Pico as well as for crypto:hash/2 on Pico
• Added ability to configure STM32 Nucleo boards onboard UART->USB-COM using the -DBOARD=nucleo cmake option
• Added STM32 cmake option -DAVM_CFG_CONSOLE= to select a different uart peripheral for the system console
• Added crypto:strong_rand_bytes/1 using Mbed-TLS (only on generic_unix, ESP32 and RP2040
  platforms)
• Added support for setting the default receive buffer size for sockets via socket:setopt/3
• Added support for pattern matching binaries containing 32 and 64 bit floating point values, but
  only when aligned to byte boundaries (e.g. <<0:4, F:32/float>> = Bin is not supported).
• Added experimental backend to get_tcp and get_udp based on the new socket interface
• Added API for managing ESP32 watchdog (only on esp-idf >= v5.x)

Removed

• OpenSSL support, Mbed-TLS is required instead.

v0.6.0-alpha.1

v0.6.0-alpha.1 release.

Please, read the getting started guide for flashing instructions.

This release includes some changes that may require manual update steps, please read UPDATING.md for more information.

CHANGELOG

Added

• Added erlang:spawn_link/1,3
• Added erlang:exit/2
• Added links to process_info/2
• Added lists:usort/1,2
• Added missing documentation and specifications for available nifs
• Added configurable logging macros to stm32 platform
• Added support for ULP wakeup on ESP32
• Added heap growth strategies as a fine-tuning option to spawn_opt/2,4
• Added crypto:crypto_one_time/4,5 on ESP32
• Improved nif and port support on STM32
• Added support for atomvm:posix_clock_settime/2
• Added support for creations of binaries with unaligned strings
• Added -h and -v flags to generic_unix AtomVM command
• Removed support to ESP32 NVS from network module in order to make it generic. See also [UPDATING.md].
• Added initial support for Pico-W: on-board LED, Wifi (STA and AP modes).

Changed

• Changed offset of atomvmlib and of program on Pico. See also [UPDATING.md].

Fixed

• Fixed incorrect exit reason for exceptions of class exit
• Fixed several incorrect type specifications
• Fixed esp:nvs_set_binary functions.
• Fixed monotonic_time/1 and system_time/1 functions for Raspberry Pi Pico
• Fixed race conditions in atoms table.
• Fixed a bug in the STM32 port that caused the final result to never be returned.
• Fix bug when building a binary using a 64-bit integer on a 32-bit CPU.
• Fix (using 'auto' option) SPI on ESP32 models other than ESP32, such as ESP32S2, ESP32C3, ...

v0.6.0-alpha.0

v0.6.0-alpha.0 release.

Please, read the getting started guide for flashing instructions.

CHANGELOG

Added

• Added the ability to specify the HSPI or VSPI ESP32 hardware interfaces when initializing the
  SPI Bus.
• Added support for the spi:close/1 function.
• Added AVM_VERBOSE_ABORT CMake define, which when set to on, will print the C module and line
  number when a VM abort occurs. This define is off by default.
• Added spi:write/3 and spi:write_read/3 functions to support generalized SPI transactions
  and arbitrary-length reads and writes from SPI devices.
• Added support for building ESP32 port with all currently supported versions of Espressif ESP-IDF,
  version 4.1.x through 4.4.x.
• Added support for controlling_process/2 in gen_udp and gen_tcp modules.
• Added ability to get the atomvm version via erlang:system_info.
• Added erlang:is_boolean/1 Bif.
• Added support for esp:partition_erase_range/2
• Added support for i2c:close/1
• Added support for erlang:unregister/1
• Added Elixir ESP32 LEDC driver and example
• Added support for uart:close/1
• Added Bitwise support for Elixir
• Added support for esp32-s2, esp32-s3, and esp32-c3 chips.
• Added Elixir I2C driver and example
• Added the ability to specify the I2C port
• Added support for the OTP math module
• Added support for erlang:integer_to_list/2 and erlang:integer_to_binary/2
• Added functions esp:sleep_enable_ext0_wakeup/2 and esp:sleep_enable_ext1_wakeup/2.
• Added support for FP opcodes 94-102 thus removing the need for AVM_DISABLE_FP=On with OTP-22+
• Added support for stacktraces
• Added support for utf-8, utf-16, and utf-32 bit syntax modifiers (put and match)
• Added support for Erlang gpio:close/1 and Elixir GPIO.close/1 for ESP32
• Added support for the Erlang gen_event module
• Added start_link support for the network module
• Added support for erlang:monotonic_time/1
• Added start_link support for the gen_statem module
• Added support for serializing floats in erlang external term encoding
• Added support for the SMALL_BIG_EXT erlang external term encoding
• Added support for erlang:memory(binary)
• Added support for callbacks on SNTP updates
• Multithreading support (SMP)
• Added support for code:load_abs/1, code:load_binary/3
• Added support for loading / closing AVMPacks at runtime
• Added support for ESP-IDF v5.x
• Added support for calendar:system_time_to_universal_time/2
• Added support for calendar:datetime_to_gregorian_seconds/1
• Added support for Raspberry Pi Pico
• Added support for nodejs with Wasm
• Added support for a subset of the OTP logger interface
• Added esp:partition_list/0 function
• Added esp:nvs_fetch_binary/2 and nvs_put_binary/3 functions (esp:nvs_set_binary and
  functions that default to ?ATOMVM_NVS_NS are deprecated now).
• Added most format possibilities to io:format/2 and io_lib:format/2
• Added unicode module with characters_to_list/1,2 and characters_to_binary/1,2,3 functions
• Added support for crypto:hash/2 (ESP32 and generic_unix with openssl)

Fixed

• Fixed issue with formatting integers with io:format() on STM32 platform
• Fixed a bug in the order of child initialization in the supervisor module
• Fixed a bug in the evaluation of receive ... after infinity -> ... expressions
• Fixed a bug in when putting integers in bit syntax with integer field sizes
• Fixed numerous bugs in memory allocations that could crash the VM
• Fixed SNTP support that had been broken in IDF 4.x builds
• Fixed erlang:send/2 not sending to registered name

Breaking Changes

IMPORTANT: These changes are incompatible with previous releases of AtomVM.

• Changed the configuration model of the SPI driver, in order to allow for multiple "follower"
  devices to be attached to the same SPI Bus.
• Changed the return value from erlang:system_info(esp32_chip_info) from a tuple to a map, with
  additional information.
• Changed the return type of the network:start function to return the tuple {ok, Pid} on a
  successful call, instead of the bare atom ok. Applications that use network:start and
  check the return value will need to be modified.
• The return type of i2c:read_bytes has changed from returning just a binary to
  returning the tuple {ok, Binary} when successful.
• The return type of many i2c operations under error conditions has changed from
  error to {error, Reason}, for improved diagnostics.
• The eavmlib logger interface has been removed

Removed

• ESP-IDF v3.x support.

v0.5.0

First AtomVM release.