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RTOS Only K230 Changelog

K230 RTOS SDK Release Notes v0.6

We are pleased to announce the release of K230 RTOS SDK v0.6. This version introduces significant enhancements to the Media Process Platform (MPP), expands driver support for the RT-Smart kernel, and improves overall system stability and performance.

🚀 Key Highlights

  • Advanced Audio Features: Integrated Audio 3A (AEC, ANS, AGC) and support for G.711A/U encoding/decoding.
  • Enhanced Video Pipeline: Added multi-channel video encoding (VENC) and improved VICAP scaling/cropping capabilities.
  • New Hardware Support: Introduced support for the k230d_evb board and additional display panels.
  • RT-Smart Kernel Maturity: Improved driver frameworks (Serial, I2C, SPI) and added syscalls for enhanced POSIX compatibility.

📦 Component Updates

1. RT-Smart (Kernel)

  • New Drivers: Added support for onewire (DS18x20) and ws2812 LED drivers.

  • System Enhancements: * Enabled romfs support for efficient read-only file systems.

  • Added statfs syscall.

  • Optimized memory management and task scheduling.

  • Network: Updated netmgmt drivers and adapted CDC/EC200M (4G) modules to the serial framework.

  • Debugging: Added VO (Video Output) debug tools and OSD enable/disable controls.

2. MPP (Media Process Platform)

  • Video Encoding (VENC):

  • Added multi-channel encoding demos.

  • Added support for rotation and mirroring in the encoding pipeline.

  • Introduced VENC_2D for picture framing and OSD overlay.

  • Video Input (VICAP): Updated usage instructions and enabled multi-channel output with hardware scaling and cropping.

  • Audio (AENC/ADEC): * Added G.711A/U codec support.

  • Enabled binding for Audio Input (AI) to Audio Encoder (AENC) and Audio Decoder (ADEC) to Audio Output (AO).

  • Audio 3A: Integration of Acoustic Echo Cancellation (AEC), Automatic Noise Suppression (ANS), and Automatic Gain Control (AGC).

3. RT-Smart Libraries & Examples

  • Libraries:

  • Integrated the mqttclient 3rd-party library.

  • Added HAL support for netmgmt, statfs, and reset_to_bootloader.

  • Enhanced driver wrappers for UART, PWM, ADC, and I2C.

  • Examples:

  • AI+RTSP Demos: Added new demos for AI-powered RTSP streaming.

  • Media Demos: Added vi -> venc -> MAPI -> small core file saving example.

  • CV Lite: Introduced the cv_lite module with vision functions (corner detection, undistort, rects).

4. U-Boot & Board Support

  • Boot Optimization: Improved boot speed and updated prebuilt binaries.
  • New Boards: Added configurations for k230d_evb and updated junroc support.
  • Panels: Added support for nt35516 and nt35532 display panels.

🛠 Bug Fixes & Improvements

  • Stability: Fixed USB CDC 100ms stall issues and lsusb -t crash bugs.
  • Drivers: Resolved I2C transfer timeouts and fixed drv_touch interrupt handling.
  • Memory: Fixed various malloc handling issues and lwp_pmutex bugs.
  • Build System: Improved GitHub Actions workflows and updated repo management tools.

⚠️ Important Notice for Developers

This version is tagged as legacy because it represents the "end of an era" for the current SDK structure.

  • Current Projects: If you are in the middle of a product cycle, stay on this version.
  • New Projects: Be aware that the next major version will likely feature a different repository structure or breaking API changes.

🔗 Repository Links

Full Changelog: https://github.com/kendryte/k230_rtos_sdk/compare/v0.5...v0.6

🚀 RTOS Only K230 rtos-v0.5 Release Notes

We are excited to announce the rtos-v0.5 release of the CanMV K230 platform — a major milestone focused on RT-Thread-based development, board enablement, and driver refactoring. This release includes extensive improvements across all core components and new board support, making it ideal for real-time and embedded scenarios.

🧠 CanMV Core Platform

While this release primarily targets RT-Thread integration, it builds on top of the stable canmv-v1.3 release. For foundational changes, see the v1.3 release notes.

⚙️ RT-Smart OS

  • Board Support:

    • Added support for rtt_evb and junroc boards.

  • UART Improvements:

    • Enabled fractional baud rate divisor (DLF) for better accuracy.
    • Refactored UART driver to use RT-Thread serial framework.
    • Improved putc() timeout logic.

  • Touch & Peripheral Drivers:

    • Added FT5406 touch panel driver.
    • Added initial pinmux module and config updates.
    • Refactored drv_pwm and drv_rtc, improved reliability.

  • System Improvements:

    • Better default driver/component init levels.
    • Enhanced NTP time sync handling.
    • Fixed boot failure issues on evb board.
    • OSPI fixes for chip select handling.

  • Code Cleanup:

    • Reverted unintentional RTC defaults.
    • Merged multiple dev branches for platform stabilization.

🔗 Full Changelog

📦 k230_rtsmart_lib

  • New HAL Drivers:

    • Added new UART, SPI, PWM, GPIO, FPIOA, WDT, and SBUS HAL drivers.
    • External SPI CS pin control supported.

  • Test Infrastructure:

    • Introduced test cases for SPI (ST7789), GPIO, SBUS, timers, and FPIOA.

  • Fixes & Improvements:

    • Fixed crash caused by invalid GPIO instance.
    • Fixed FPIOA bugs and driver warnings.
    • Added face_liveness.kmodel as part of the testing set.

🔗 Full Changelog

🎥 MPP (Media Processing Platform)

  • Display Support:

    • Added driver for NT35516 display.

  • Sensor Fixes:

    • Fixed GC2093 sensor configuration issues.

  • RTT Compatibility:

    • Improved build config for RT-Smart-based systems.

🔗 Full Changelog

🛠️ U-Boot Bootloader

  • Board Support:

    • Added support for rtt_evb and junroc boards.

  • RTOS Integration:

    • Added support for building and pushing prebuilt U-Boot images to k230_rtos_sdk.

  • Driver Improvements:

    • Updated SDHCI driver for better stability.

🔗 Full Changelog

📈 Full Changelog

Repository Compare Link
rtsmart canmv-v1.3...rtos-v0.5
rtsmart_lib canmv-v1.3...rtos-v0.5
mpp canmv-v1.3...rtos-v0.5
u-boot canmv-v1.3...rtos-v0.5

📝 Summary

The rtos-v0.5 release focuses on transitioning the CanMV K230 platform toward real-time RTOS workflows. It introduces new drivers, boards, HAL libraries, and debugging infrastructure essential for embedded systems work. This sets the stage for future development with tight real-time constraints and modular software stacks.

We encourage developers working with RT-Thread to upgrade and try out the new platform capabilities.

For questions, contributions, or bug reports, visit our GitHub organization.