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radioman
Associate II
April 11, 2022
Question

osMessageQueueGet(vsync_queue, &dummyGet, 0, osWaitForever); does not return in the OSWrappers::waitForVSync() function.

  • April 11, 2022
  • 1 reply
  • 817 views

Nucleo-H7A3ZI-Q dev. board with LTDC configured. I do see Vsync and Hsync pulses going to the display but the VSync is not triggering the queue so it hangs. I traced into that call and it looks like it is waiting for an IRQ.

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1 reply

radioman
radiomanAuthor
Associate II
April 11, 2022

Follow up question. Might be related. I see in other examples RENDER_TIME_Pin and VSYNC_FREQ_Pin. What are these and what do they connect to? My app does not have those.