I've generated a project using the Text Example template and a HW timer. TouchGFXHAL::initialize() is called and the HW timer signals Vsync, so HAL::getInstance()->backPorchExited() is called. I'm up to "Transferring the framebuffer section" in https://support.touchgfx.com/docs/development/touchgfx-hal-development/scenarios/scenarios-fmc and was expecting TouchGFXHAL::flushFrameBuffer(const touchgfx::Rect& rect) to be called, but it isn't? I'm not calling lockFrameBuffer().
flushFrameBuffer is only called when the UI template is changed to Blank and there is no content. Adding any content, such as a background again causes flushFrameBuffer not to be called.
This similar to https://community.st.com/s/question/0D53W00000AYdlzSAD/basic-touchgfx-application-dont-work?t=1593157787724, except I'm currently using 1 bit 320x240 display setting, bare metal (no FreeRTOS) and no graphics acceleration. Changing the framebuffer pixel format or resolution makes no difference. I've compared with the example STM32L496-DISCO Application, but there's a lot of driver code embedded in it.
