RT-Thread v4.0.0 Released

The following is the change log of this version since v3.1.1 release.

Kernel

• Add SMP support;
• Add support for 64-bit processors;
• When the thread is running on CPU, the state of this thread is changed to RUNNING stat instead of READY state in previous version;

Components

• When formatting the file system, adds FM_SFD option to create a volume in SFD format for FatFs; (HubretXie)
• Add file system handle pointer in `struct dfs_fd' structure;
• Fix stdio fd issue when POSIX api is used; (gbcwbz)
• Fix the fd_is_open() issue: when the sub-path is the same in different mounted filesystem.
• Change the critical lock/unlock to dfs_lock/unlock in getcwd() function of DFS (the critical lock/unlock is different in SMP environment);
• Rewrite list_thread/list_* implementation of finsh cmd to avoid multi-core competition case;
• Fix the aio_result issue, which is returned by aio_read_work in AIO; (fullhan)
• Fix the mmap issue when the addr parameter is NULL; (fullhan)
• Modify the _sys_istty function in armlibc to correctly handle STDIN/STDOUT/STDERR; (gbcwbz)
• Modify the _write_r function in newlib to correctly handle stdout.
• Add lightweight processes (lwP) and corresponding system calls;
  • the lwP user application environment will be added later;
• Fix the at_socket issue when socket is a null pointer; (thomas onegd)
• Fix the select event issue in at_recvfrom() function in at_socket;
• Divide SAL into sal_socket_ops/sal_proto_ops and sal_proto_ops is implemented with gethostbyname/getaddrinfo ops etc.
• Add socket TLS layer in SAL, that is, upper application can be supported by encrypted transmission without considering lowlevel TLS at all.
• Fix the length issue of ulog_strcpy, which should be not exceed ULOG_LINE_BUF_SIZE;
• Add the macro definition of hexadecimal log output to ulog; (HubretXie)
• Add uTest component. The uTest is a unit test framework on RT-Thread, and can also be used for automatic testing on board with external Python scripts.
• Fix some compilation warnings and enumeration mismatches in drivers/audio;
• Fix the can_rx/can_tx issue, which is not cleared to NULL when CAN device is closed in drivers/can; (xeonxu)
• Fix drivers/hwtimer, time acquisition issue with counting down mode;
• Add drivers/adc driver framework;
• Fix the tick compensation issue when enable interrupt too early; (geniusgogo)
• Add RT_SERIAL_USING_DMA option in drivers/serial;
• Add QSPI support in drivers/spi framework;
• Add QSPI support in SFUD (based on the QSPI peripheral of stm32); SFUD is upgraded to version 1.1.0;
• Optimize SPI take/release function call in spi_msd;
• Fix the blk_size issue in rt_rbb_blk_alloc();
• Fix the FS USB issue in _get_descriptor function;
• Fix the empty password issue in AP mode of drivers/wlan;
• Fix the return type issue in drivers/wlan;
• Remove the duplicate opening file check when open a file;

BSP

• Change the name parameter to cosnt char * in rt_hw_interrupt_install function; (liruncong)
• Rewrite the RISC-V porting layer to make as a common and standalone porting layer for RISC-V IMAC 32/64;
• Fix $ warning issue in Kconfig files of each BSP;
• Add the LPC54114-lite BSP, including GPIO, I2C, SDCard, SPI, SPI Flash, UART driver;
• Add Nuvoton-M487 BSP, including UART, EMAC driver; (Bluebear 233)
• Add Kendryte K210 BSP with RISC-V64 dual-core SMP BSP, including UART driver, also verified with micropython;
• Add RV32M1 VEGA BSP, including GPIO, I2C, SDCard, UART and other drivers;
• Fix the CAN driver issue in STM32F4XX-HAL BSP; (xeonxu)
• Fix UART DMA settings issue in STM32F10x/STM32F40x BSP; (zhouchuanfu)
• Fix the HEAP_BEGIN definition issue in STM32H743-Nucleo BSP; (nongxiaoming)
• Fix GPIO configuration issue in stm32f10x-HAL; (Wu Han)
• Change stm32f107 BSP as main function entry; (whj4674672)
• Fix the serial interrupt handling issue in stm32f10x BSP;
• Add PWM, RTC and watchdog drivers to stm32f10x-HAL BSP; (XXXXzzzz000)
• Fix the watchdog driver issue in stm32f4xx-HAL BSP; (XXXXzzzz000)
• Use lwIP version 2.x in stm32f40x/stm32f107 BSP.
• Fix the link issue when enable cmBacktrace package in stm32f4xx-HAL BSP; (xeonxu)
• Support Audio and microphones features in stm32f429-apollo BSP;
• Enable dlmodule support in x86 BSP; (SASANO Takayoshi)
• Addd uTest section in the link script of qemu-vexpress-a9/stm32f429-atk-apollo BSP for automatic testing;
• Change the license to Apache License v2.0 in Godson 1C BSP; (sundm75)
• Add the new BSP framework for STM32 serial chip, such as STM32 G0/F0/L0/F1/F4/F7/H7. In new BSP framework, the SoC drivers is reused. And in same time, lots of STM32 boards are supportted with new BSP framework:
  • STM32F091-Nucleo Development Board BSP
  • STM32F411-Nucleo Development Board BSP
  • STM32L432-Nucleo Development Board BSP; (sun_shine)
  • STM32F407-Discovery Development Board BSP
  • STM32F446-Nucleo Development Board BSP; (andeyqi)
  • STM32F746-Discovery Development Board BSP; (jinsheng)
  • STM32F767-Nucleo Development Board BSP; (e31207077)
  • STM32G071-Nucleo Development Board BSP;
  • ATK STM32F103 NANO Development Board BSP
  • ATK STM32F407 Explorer Development Board BSP
  • ATK STM32F429 Apollo Development Board BSP
  • ATK STM32F767 Apollo Development Board BSP
  • ATK STM32L475 Pandora IoT Development Board BSP
  • Fire STM32F103 Arbitrary Development Board BSP
  • Fire STM32F429 Challenger Development Board BSP
  • Fire STM32F767 Challenger Development Board BSP; (Hao Zhu)
  • ArmFly STM32F429-v6 Development Board BSP
  • STM32F103 iBox development board BSP; (dingo1688)
  • Dofly STM32F103 Development Board; (FindYGL)
  • STM32F107 uC/Eval Development Board BSP; (whj4674672)
  • and more, there are more developers involved for stm32 BSP framework, they are HubretXie, Hao Zhu, e190, etc. to improve the STM32 public driver.
• Add SWM320 BSP of Synwit.cn, including GPIO, HW Timer, I2C, Watchdog, PWM, RTC, SPI, UART, etc.; (provided and maintained by Synwit)
• Add TI TMS320F28379D BSP, the first DSP chip supported on RT-Thread; (xuzhuoyi)
• Fix USB driver issue in X1000; (Zhou YanJie)
• Add BSP for Synopsys Design Ware ARC EM Starter Kit, bsp/synopsys/emsk_em9d, EM9D core, including GPIO, UART and other drivers; (provided and maintained by Synopsys)

Tool

• Provide more information when the tool chain does not exist;
• Add a draft Segger Embedded Studio project file generation command. Note that the tool chain in SES is a special version not the newlib.
• Fix the IAR library link command issue when use scons command line under;
• Fix the BSP path issue in scons str(Dir('#'));
• Add scons --pyconfig-silent command to add some Kconfig configurations and to generate .config and rtconfig.h files;
• Update the scons --dist command to adapt to the new BSP framework;
• Modify the mkromfs.py script. Fix the corresponding C code generation When the romfs contains empty files or empty folders;
• Fix the issue of version string comparison issue for GNU GCC version in utils.py;
• ENV updated to V1.1.0
  • Provide better prompt information to improve user experience;
  • Add system32 path to environment variables to avoid the cmd command cannot be found;
  • Add PYTHONHOME variable to environment variables to avoid PYTHON environment issue;