v4.5.3

🪄 Image

• imlib: Optimize math ops.
• imlib: Optimize binary ops.
• imlib: Remove mul().
• imlib: Remove cartoon() method.
• imlib: Add ksize helper.
• imlib: Add config options for find_features.
• imlib: Refactor collections linked list.
• draw: Add anti aliasing in draw_line.
• jpegd: Fix jpeg decode for non-multiple of 8.
• imlib: Enable hardware JPEG decoder.
• stats: Fix get_threshold A/B values.
• apriltag: Fix find_rects() roi parameter.
• imlib: Fix gcc13.2 compile issues.

🧬 HAL

• omv_i2c: Update I2C flags.
• cmsis: Move cmsis gcc extensions to new file.

📚 Libraries

• libtf: Add model operator order hash support.
• libtf: Fixed missing tensorflow operators crash.

🤖 Sensors

• GC2145: Fix hmirror and vflip.
• GC2145: Fix chip id bug in sensor probe.
• GC2145: Support using GC2145 and OV5640 at the same time.
• paj6100: Fix driver for RT1062.

💾 Drivers

• pixart: Fix buffer overflow case.

🧱 Modules

• py_image: Optimize invert and negate.
• py_display: Add user SPI LCD register control.
• py_image: Remove div() method.
• py_tf: Refactor regression() code to handle arrays correctly.
• py_fir: Fix mlx data root pointer.
• py_image: Fix bug with gamma arguments.
• py_image: Upgrade ccm to work well with ulab.
• py_tf: Cleanup segment, detect, and callback data.
• py_image: Refactor isp ops to use mp_arg_parse.

🐍 Micropython

• micropython: Update fork to fix shared TinyUSB HS config.
• micropython: Update Arduino boards pins.
• micropython: Add back IMXRT CAN Driver.
• micropython: Fix deepsleep on mimxrt1062.
• micropython: Disable GC scanning of BSS.
• micropython: Update to MicroPython v1.22.

🧪 Ports

• all: Fix WiFi AP mode issues.
• stm32: Fix xclk duty cycle to 50%.
• all: Add a sensor function to reconfigure hardware if/when needed.
• mimxrt: Enable edma memcpy.
• mimxrt: Use hardware byteswap support.
• mimxrt: Improve Sensor Driver.
• ports: Add yuv shift to match bayer shift.
• all: Refactor sensor line copy.
• all: Refactor frame rate control.
• ports: Minor sensor cleanup.
• stm32: Scan devices once per scan.
• ports: Fix sensor bayer image with cropping and transpose.
• all: Allow sensor_abort() to be called from different contexts.
• ports: Fix sensor abstraction layer comment.
• all: Remove custom pendsv prototypes.
• all: Refactor PendSV code.
• all: Update to CMSIS version 5.9.0.
• stm32: Error on jpeg geometry mismatch.
• ports: Don't deinit the SSEL pin on stm32 and mimxrt.
• all: Use LD wrap for redirecting serial data to TinyUSB debug code.
• all: Update to Arm GNU Toolchain 13.2.rel1.

⚙️ Boards

• ARDUINO_GIGA: Enable GC2145 driver.
• NICLA_VISION: Reduce flash usage.
• OPENMV_RT1060: Update UMM Heap Size to match H7 Plus.
• OPENMV_RT1060: Enable ISP Ops.
• OPENMV_RT1060: Enable ulab.
• all: Refactor board config files.
• all: Add custom board reset function.
• all: Enable OV5640 Autofocus firmware and add example.

📜 Scripts

• examples: Add imxrt board control examples.
• examples: Add working Pure Thermal OpenMV example.
• examples: Reorganize OpenMV Board examples.
• libraries: Replace pyb with time module in vl53l1x.py.
• examples: Remove old CENTER argument usage.
• scripts: Update examples and libraries.
• libraries: Change the RPC Interface Library UART Master.

🛠 Tools

• tools: Add tflite model hash tool.
• pyopenmv_fb: Fix pygame FB test script.

🪛 Misc Fixes:

• build(deps): bump actions/cache from 4.0.0 to 4.0.1
• misc: Code formatting.
• build(deps): bump actions/cache from 3.3.3 to 4.0.0
• misc: Fix errors triggered by disabling specific features.
• build(deps): bump actions/cache from 3.3.2 to 3.3.3
• misc: Update firmware workflow for upload/download v4.
• build(deps): bump tj-actions/changed-files from 40 to 41
• build(deps): bump actions/upload-artifact from 3 to 4
• build(deps): bump actions/download-artifact from 3 to 4