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Thread: delay in XMC_SCU_CLOCK_Init() function

  1. #1
    New Member New Member ipek is on a distinguished road
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    delay in XMC_SCU_CLOCK_Init() function

    Hello,

    At the beginning of every code in my projects I call 2 functions: XMC_SCU_CLOCK_Init(&clockConfig); and SysTick_Config(SystemCoreClock / ticksPerSecond);
    XMC_SCU_CLOCK_Init is to select clock source and frequency, SysTick_Config is to configure tick interrupt.
    I have several questions about this XMC_SCU_CLOCK_Init function.
    -It takes approximately 2 seconds to pass through that function. This duration may not be tolerable for my projects. So I commented out that function and everything works fine(CAN, UART..) Correct me If I am wrong but if I am working with
    default values (clock source = DCO1, fdiv = 0, idiv = 1 pclock = 2 x mclock) I don't have to call this function right ?
    - Sometimes I cannot pass throug that function... I have several xmc1400 boot kit boards. And with one of them I cannot exit XMC_SCU_CLOCK_Init function. When I debug, I saw that program keep looping in this do-while :
    (xmc1_scu.c, XMC_SCU_CLOCK_Init(const, XMC_SCU_CLOCK_CONFIG_t * const config) function, lines 545-560)
    do
    {
    ...
    }while(SCU_INTERRUPT->SRRAW1 & SCU_INTERRUP_SRRAW_LOECI_Msk);
    Weird thing is, I errase chip before doing anything, I use the exactly same code for all these boards, they have the same hardware configuration but some of them have this problem..
    For now I comment it out only. But I know this is not a solution.

    Best regards,
    İpek

  2. #2

    Infineon Employee
    Infineon Employee
    jferreira will become famous soon enough
    Join Date
    Oct 2012
    Posts
    838
    Hi,

    This is addressed in XMCLib 2.1.24, http://dave.infineon.com/Libraries/X...RoCQ_cQAvD_BwE


    Regards,
    Jesus
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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