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emWin Configuration with Memory allocation issue

Li Ying Hao

I am trying to write my own LCD driver with emWin, I use the GUIDRV_Template, and GUICC_1 Color conversion. When I called the GUI_DEVICE_CreateAndLink(DISPLAY_DRIVER, COLOR_CONVERSION, 0, 0),
the device get into a dead loop, I checked the assambly code, I find it enter this function
_TestRAM 0x0005e52d Thumb Code 274 gui_alloc.o(i._TestRAM).

I assume the gui_library need memory allocation but I can not get the memory, does anybody can give any advice how to set the heap for emWin library?

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  • 0 in reply to Stefan Axt

    I found in Keil, you should not select NoInit for RAM memory area, looks emWin reply on compiler to initialize the uninitialized variable to 0. If you select NoInit, the keil not initialize the uninitialized variable for you.

    It is just my guess, but it works for my case.

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  • 0 in reply to Stefan Axt

    I found in Keil, you should not select NoInit for RAM memory area, looks emWin reply on compiler to initialize the uninitialized variable to 0. If you select NoInit, the keil not initialize the uninitialized variable for you.

    It is just my guess, but it works for my case.

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