v4.4.8

v4.4.8 is a maintenance release that refreshes the bundled firmware and tools. It continues to build on Qt Creator 14.0.2 with no rebase in this range. The bundled OpenMV firmware moves to v4.6.0, first-time STM32N6 (OpenMV Cam N6) firmware is bundled, new FLIR Boson thermal sensors are recognized, and the Alif Security Toolkit is updated. There are no user-facing breaking changes, and existing user projects are unaffected.

Highlights

  • Bundled firmware v4.6.0: The bundled OpenMV firmware and examples are updated from v4.5.9 to v4.6.0 (66bfd486f).

  • OpenMV Cam N6 firmware bundled: STM32N6 (OpenMV Cam N6) firmware is now shipped in the bundle for the first time (66bfd486f).

  • FLIR Boson thermal sensors: BOSON, BOSON-320/BOSON-640 and the BOSON-320+/BOSON-640+ (Boson Plus) thermal sensors are now recognized by the IDE (8b795053c, d5068b286).

  • Alif Security Toolkit v1.101.0: The bundled Windows toolkit is updated to v1.101.0 (7d51b00b1).

  • OpenMV Cam AE3 SBL flashing fixed: The AE3 board now runs the correct secure bootloader when flashing (ed7c95357).

New features

  • FLIR Boson examples: Added bundled example scripts for FLIR Boson grayscale and ironbow streaming plus color tracking under 01-Camera/05-Thermal-Cameras/02-FLIR-Boson, and a GenX320 grayscale LED-tracking example under 01-Camera/03-Event-Cameras/02-Genx320 (66bfd486f).

Other changes and improvements

  • Reorganized the bundled example tree: the FLIR Lepton examples moved into a new 01-Camera/05-Thermal-Cameras/01-FLIR-Lepton category alongside the new Boson examples, and the event-camera examples were split into 01-Camera/03-Event-Cameras/01-Frogeye2020 and 02-Genx320 subfolders (66bfd486f).

  • Removed the unused, orphaned OPENMV4_PRO firmware folder from the bundle; no board entry referenced it, so no flashable board is affected (66bfd486f).

  • Updated the bundled OpenMV AE3 SBL firmware, bootloader and signed images used for flashing (b8c06a8ab).

  • Updated the bundled Alif Security Toolkit (Windows) to v1.101.0, including the refreshed user guide (AUGD0005) and signed SP images (7d51b00b1).

Bug fixes

  • Fixed OpenMV Cam AE3 SBL flashing so the correct secure bootloader is run, by setting its board arch string to OPENMV AE3 SBL (ed7c95357).

  • Increased the blhost flash-erase timeout from 60s to 120s when programming i.MX RT boards, preventing timeouts during erase and flash of larger regions (b48e139e4).

Platform and tool support

  • Qt Creator base: 14.0.2.

  • Bundled OpenMV firmware: updated 4.5.9 -> 4.6.0 (66bfd486f).

  • OpenMV Cam N6: STM32N6 firmware (firmware.bin, network.bin, openmv.bin) is now bundled under firmware/OPENMV_N6 (66bfd486f).

  • OpenMV AE3 SBL: firmware and bootloader binaries updated (b8c06a8ab).

  • Alif Security Toolkit (Windows): updated v1.100.0 -> v1.101.0 (7d51b00b1).

  • New recognized sensors: FLIR BOSON, BOSON-320, BOSON-640 (8b795053c), FLIR BOSON-320+ and BOSON-640+ (d5068b286), and the PixArt PS5520 (66bfd486f).

Breaking changes

None. There are no scripting API changes, and existing user projects are unaffected. The removed OPENMV4_PRO firmware folder was unused and referenced by no board, so its removal breaks no flashing workflow.