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  • Thank you for the clarification. Now since I know what I have to look for, the search items "GUI_Init()" and "CRC" in the ST-Communinty Formum shows up the appropriate answers. Shame on ST that they did not point out their use of CRC checks more clearly. I would expect such important information. In AN4323 there is only "CRC should be enable" but not "has to be in default configuration". Thumbs Up for Segger, will visit your booth on embedded world in February. Regards Thomas

  • FINALLY SOLVED IT! The problem was not only CRC usage in main application, but I also used the CRC in my boot-loader to verify application data in QSPI-Flash. And HAL_CRC_DeInit() does *not* reset CRC to its reset state. It keeps INIT and POLY values untouched! But a dedicated HAL_CRC_Init() with default reset values did the trick: C Source Code (10 lines)Is there some official documentation anywhere available about the CRC usage of emWIN? Maybe I should bookmark it not to forget it in my next p…

  • Thank you for the hint. Checked it, but GUI_X_Log() is simply an empty function in my GUI_X.c. But I did some analysis by stepping through first view instructions of GUI_Init() and found that my problem seems to be some license check issues. Is that possible? The code first checks some of the FPB_Remap register contents (which are 0x449 in my case) and then calculates something using CRC unit. And if that calculation gives not the expected result, it hangs forever. I do use the CRC unit in my co…

  • Still not working. But I found the ST application note AN5426 "Migrating graphics middleware projects from STM32CubeMX 5.4.0 to STM32CubeMX 5.5.0" and there is an interesting section that states: Quote: “stm32f7xx_it.c Add the GRAPHICS_IncTick function prototype as extern: C Source Code (3 lines) Insert GRAPHICS_IncTick call in SysTick_Handler: C Source Code (3 lines)” But neither in my (working) old project nor in my current (hanging) project there gets this "GRAPHICS_IncTick(void)" called anyw…

  • Did the suggested test and set a breakpoint at the start of GUI_X_Config(), GUI_X_Config() and GUI_X_Config(). But none of them gets called before my app hangs in GUI_Init(). As can be seen in the assembler listing above there is not a single subroutine call between the start of GUI_Init() and the endless loop within that same GUI_Init(). So if Segger says, that there is no such thing as an endless loop in GUI_Init(), what are the remaining possibilities? * Did I link the wrong library and a non…

  • Thank you for the fast reply. I will try within the next few hours. So I understand correctly: There is no such thing as an endless loop wihin GUI_Init()? Because to me it looks like there is one. Regards Thomas

  • Hi to all, I have a self made STM32F750N8H6 board with external SDRAM, QSPI Flash and a 800x480 TFT Panel attached. Panel displays Images, code is executing from SDRAM, Framebuffer is in SDRAM, too. SO far everything looks good. While this hardware was being manufactured I started application development on a STM32F746 Discovery board. STemWin applicaiton was running well there using FreeRTOS. SDRAM is mapped to 0x6000000 to allow code execution. That worked well on the discovery board. Now I tr…