v1.6

🚀 CanMV K230 v1.6 Release Notes

We are excited to announce the release of CanMV K230 v1.6!

A major highlight of this release is the introduction of MPP private pool support, which significantly streamlines the architecture and makes interacting with the media module much more convenient for developers. Additionally, this version brings heavy performance optimizations using RISC-V Vector (RVV) extensions across the system, expanded AI task capabilities, and deeper LVGL UI integration.

---

🧠 CanMV Core

• New Features

  • Introduced a new dual-camera AI example.
  • Added manual focus API to the sensor module.
  • Integrated unit testing and fuzz testing for the CanMV source.
  • Added support for new boards and panels: k230d_canmv_mini.

• Improvements

  • Media Module / MPP: Migrated to the new MPP architecture featuring private pool support, drastically simplifying user-level media module interactions.
  • UVC Enhancements: Accelerated UVC host format conversion using RVV instructions, and added support for additional UVC GUID formats.
  • LVGL Integration: Enhanced FPS tracking and display in the UI. Added support for rendering sensor images directly into LVGL widgets, and introduced a pixel_format argument for media.Display.show_image.
  • Enabled 3DNR by default for improved image quality.

• Bug Fixes

  • Fixed issues with WBC + RTSP pipelines.
  • Refactored virtual display handling and corrected pixel format mapping for 32-bit color formats.
  • Fixed LVGL initialization and de-initialization memory leaks.

---

🎥 Media Processing Platform (MPP)

• New Features

  • Added sensor manual exposure API.
  • Implemented a hardware timer for Video Output (VO) to fine-tune update timing.

• Improvements

  • Synchronized with SDK to accelerate UVC host format conversion using RVV.
  • Added fuzz and unit test directories.

• Bug Fixes

  • Fixed 3DNR mmz allocation failure.
  • Corrected gc2093 CSI1 mode AE mapping indices and adjusted 960p mode FPS to 90.
  • Fixed VO boundary checks and rotation bits-per-pixel (BPP) logic.

---

⚙️ RT-Smart OS

• New Features

  • Added microsecond precision time handling by utilizing the hardware timer (cpu_ticks_ms).
  • Added support for Sitronix CF1124 touch driver.
  • Added USB host class NCM and CH397 support.

• Improvements

  • Accelerated SPI driver memory allocation and data transfer utilizing RVV optimized functions.
  • Accelerated UVC host memcpy with RVV and integrated profiling tools.
  • Increased maximum WLAN password length from 32 to 64 bytes.
  • Updated FPIOA and GPIO pin configuration limits to use dynamic constants based on RTC support.

• Bug Fixes

  • Fixed PMU IOMUX IO_SEL to use the correct bits per the K230 TRM.
  • Fixed drv_touch interrupt enable/disable logic and increased the message buffer.
  • Fixed RT-Smart syscall dispatch to correctly translate Linux riscv64 munmap/exit numbers.
  • Added bus names and DTS hints to I2C timeout logs for better debugging.

---

📚 RT-Smart Libraries

• New Features

  • Added HID keyboard event API header.
  • Integrated Tuya SDK (base 0208bade).
  • Added new RVV operations support.

• Improvements

  • Allowed users to set the alpha channel when creating an LVGL display.
  • Streamlined pin validation in GPIO and FPIOA drivers.

• Bug Fixes

  • Fixed lv_display_set_buffers to use the correct buffer size.
  • Fixed MQTT library build issues.
  • Corrected drv_gpio_toggle to cast the current value to gpio_pin_value_t.

---

🛠️ U-Boot & Board Support

• New Features & Hardware Support

  • Added board configurations for k230d_canmv_mini and Wondermk.

• Improvements

  • Increased the timeout for MMC SD operations and enabled weak pull-up resistors for better SD card stability.
  • Optimized CI workflow build times with parallel make executions.

---

📈 Full Changelog Links

• canmv
• mpp
• rtsmart
• u-boot
• k230_rtsmart_lib