Ross Lee Beginner

  • Member since Jul 3rd 2019
Last Activity

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  • Ross Lee -

    Replied to the thread STemwin run into HardFault_Handler when GUI_CreateDialogBox().

    Post
    Problem is solved. When the SDRAM clock frequency drops from 72Mhz to 36Mhz, the emwin runs well. The SDRAM controller need to be check and reconfigured later but the emwin is ok.
  • Ross Lee -

    Replied to the thread STemwin run into HardFault_Handler when GUI_CreateDialogBox().

    Post
    Hi Sven, Thanks for reply. I've deleted some codes that are not related with STemwin and run the project again. This time, the HardFault is still triggered but with different callers. However, I've tested several times and found the callers are all…
  • Ross Lee -

    Posted the thread STemwin run into HardFault_Handler when GUI_CreateDialogBox().

    Thread
    I use Cubemx to generate an LCD+SDRAM+STemwin project and run it on my STM32F429II board. In this project, when the code run into GUI_CreateDialogBox(), it jumps to HardFault_Handler() automatically. I read the stack and find the caller of…
  • Ross Lee -

    Posted the thread Edit lost focus when switch keyboard.

    Thread
    My design includes one Edit and two keyboards( alphabet keyboard and digital keyboard). The intention is when Edit is clicked, one of the two keyboards appears. One type of keyboard can switch to another type by clicking the "abc" or "123" button. The…
  • Ross Lee -

    Posted the thread Can GUI_CreateDialogBox() generate WM_CREATE message?.

    Thread
    When I use GUI_CreateDialogBox() to create a dialog including a window, I find that the code in WM_CREATE branch of callback function is not excuted. Then I set breakpoint in WM_CREATE branch and find it never arrived. However, if I just use…