.. _changelog_ide_v2_6_7:

v2.6.7
======

v2.6.7 moves the DFU firmware-flashing and video-conversion workflows into
embedded IDE terminal dialogs, adds CYW4343 WiFi co-processor programming for
the Arduino Portenta H7, and improves grayscale-sensor handling and the
DFU-mode prompt. The IDE remains on Qt Creator 4.0.2, the bundled OpenMV
firmware advances to 3.6.9, and there are no breaking changes.

.. contents:: On this page
   :backlinks: none
   :local:
   :depth: 1

Highlights
----------

- **Embedded DFU flashing terminal** runs ``dfu-util`` inside a resizable IDE
  dialog with live output (errors highlighted in red) and a Cancel button
  instead of an external OS terminal window.
- **CYW4343 WiFi firmware** is now programmed alongside the main firmware when
  flashing the Arduino Portenta H7 over DFU.
- **Embedded video-conversion terminal** runs the FFmpeg ``Convert Video``
  tool in the same resizable IDE dialog with live output and Cancel.
- **Redesigned DFU-mode prompt** uses a firmware-version drop-down and an
  optional ``Erase internal file system`` checkbox that remembers your last
  choice.
- **Grayscale sensor support** extends automatic ``RGB565`` to ``GRAYSCALE``
  rewriting to the **MT9V034** in addition to the **HM01B0**.

New features
------------

- **Embedded DFU flashing terminal.** ``dfu-util`` now launches directly into
  a ``QDialog`` terminal that streams live ``stdout`` as plain text and
  highlights ``stderr`` in red, with a Cancel button and saved window
  geometry, replacing the external OS terminal window.
  (`c2875d871 <https://github.com/openmv/qt-creator/commit/c2875d871>`__)
- **CYW4343 WiFi co-processor programming.** Loading firmware via DFU on the
  Arduino Portenta H7 now runs an extra programming step that flashes the
  onboard CYW4343 WiFi firmware (``CYW4343/cyw4343.bin`` at ``0x90F00000``),
  driven by ``extraProgramCommands`` in ``dfu.txt``.
  (`62e0ba771 <https://github.com/openmv/qt-creator/commit/62e0ba771>`__,
  `ba31998ce <https://github.com/openmv/qt-creator/commit/ba31998ce>`__)
- **Embedded video-conversion terminal.** The FFmpeg-based ``Convert Video``
  tool now runs ``ffmpeg`` in a resizable IDE terminal dialog with live output
  and Cancel rather than launching an external terminal.
  (`5987bb152 <https://github.com/openmv/qt-creator/commit/5987bb152>`__)
- **Factory provisioning option.** A hidden ``-form_key`` command-line option,
  when supplied, auto-registers a connected OpenMV Cam's board/ID with
  OpenMV's server instead of showing the manual registration prompt.
  (`d5740f71e <https://github.com/openmv/qt-creator/commit/d5740f71e>`__)

Other changes and improvements
------------------------------

- **Redesigned DFU-mode prompt.** The ``board detected in DFU mode`` prompt is
  now a dialog with a drop-down showing the exact latest release firmware
  version plus an optional ``Erase internal file system`` checkbox, and it
  remembers the last selected action and erase state.
  (`0a4d6258c <https://github.com/openmv/qt-creator/commit/0a4d6258c>`__)
- **Erase-checkbox tooltips.** The bootloader/DFU erase-filesystem checkboxes
  now have tooltips clarifying that erasing the internal flash drive does not
  erase a removable SD card.
  (`0a4d6258c <https://github.com/openmv/qt-creator/commit/0a4d6258c>`__)
- **In-place grayscale rewrite for open examples.** When an already-open
  helloworld example is run on an HM01B0 or MT9V034 sensor, the IDE rewrites
  it in place to use ``GRAYSCALE`` so it works on those grayscale-only
  sensors. (`4448edb38 <https://github.com/openmv/qt-creator/commit/4448edb38>`__)
- **Clearer post-flash message.** After a DFU/firmware update, the
  confirmation message now explains the case where ``main.py`` was overwritten
  without erasing the disk, so the camera simply runs ``main.py`` and mounts
  its drive. (`62e0ba771 <https://github.com/openmv/qt-creator/commit/62e0ba771>`__)
- **Updated example scripts.** ``ulab.py`` now uses ``ulab.numerical`` for
  mean/std, ``deep_sleep.py`` reorders the sensor soft-sleep before the OV7725
  regulator bypass, and a new ``19-Low-Power/extint_wakeup.py`` demonstrates
  waking from stop mode via an external interrupt.
  (`c30fcb7c3 <https://github.com/openmv/qt-creator/commit/c30fcb7c3>`__)
- **Connect dialog polish.** The ``Connecting...`` progress text was
  reformatted with line breaks for readability.
  (`0d3619245 <https://github.com/openmv/qt-creator/commit/0d3619245>`__)

Bug fixes
---------

- Fixed all Save-As dialogs (save image, template, descriptor, keypoints,
  network model, dataset export, terminal log, save video, convert video
  output) to reject filenames with no extension and prompt the user to add
  one instead of saving an extension-less file.
  (`3a3ba3c5e <https://github.com/openmv/qt-creator/commit/3a3ba3c5e>`__)
- Fixed macOS-specific UI rendering: the menu text/button color inversion
  (which keyed off the menu background brightness) and the custom dark
  scrollbar styling are no longer applied on macOS.
  (`39179b6cb <https://github.com/openmv/qt-creator/commit/39179b6cb>`__,
  `8b11fbcab <https://github.com/openmv/qt-creator/commit/8b11fbcab>`__)

Platform and tool support
-------------------------

- **Qt Creator base:** 4.0.2.
- **Bundled OpenMV firmware:** 3.6.8 to 3.6.9.
- **CYW4343 WiFi firmware:** new ``CYW4343/cyw4343.bin`` blob bundled for the
  Arduino Portenta H7.
- **Grayscale sensor scripts:** New File, example, and dataset scripts now
  switch ``RGB565`` to ``GRAYSCALE`` on the MT9V034 in addition to the HM01B0
  (VGA to QVGA only for the HM01B0).
  (`ef0c22efb <https://github.com/openmv/qt-creator/commit/ef0c22efb>`__,
  `d5bdd8890 <https://github.com/openmv/qt-creator/commit/d5bdd8890>`__)

Breaking changes
----------------

None. This release is backward compatible; existing projects and scripts
require no changes.