Function rt_hw_board_init

bsp/efm32/board.c:252–301

/ * @brief * Initialize the board. * * @details * * @note * ******************************************************************************/

 *
 ******************************************************************************/
void rt_hw_board_init(void)
{
    /* Chip errata */
    CHIP_Init();

    /* Initialize DVK board register access */
#if defined(EFM32_GXXX_DK)
    DVK_init();
#elif defined(EFM32GG_DK3750)
    DVK_init(DVK_Init_EBI);

    /* Disable all DVK interrupts */
    DVK_disableInterrupt(BC_INTEN_MASK);
    DVK_clearInterruptFlags(BC_INTFLAG_MASK);
#endif

    /* config NVIC Configuration */
    NVIC_Configuration();

#if defined(EFM32_USING_HFXO)
    /* Configure external oscillator */
    SystemHFXOClockSet(EFM32_HFXO_FREQUENCY);

    /* Switching the CPU clock source to HFXO */
    CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFXO);

    /* Turning off the high frequency RC Oscillator (HFRCO) */
    CMU_OscillatorEnable(cmuOsc_HFRCO, false, false);
#endif

#if defined(EFM32_USING_LFXO)
    CMU_ClockSelectSet(cmuClock_LFA,cmuSelect_LFXO);
    CMU_ClockSelectSet(cmuClock_LFB, cmuSelect_LFXO);
#endif

#if defined(EFM32_SWO_ENABLE)
    /* Enable SWO */
    Swo_Configuration();
#endif

    /* Enable high frequency peripheral clock */
    CMU_ClockEnable(cmuClock_HFPER, true);
    /* Enabling clock to the interface of the low energy modules */
    CMU_ClockEnable(cmuClock_CORELE, true);
    /* Enable GPIO clock */
    CMU_ClockEnable(cmuClock_GPIO, true);

    /* Configure the SysTick */
    SysTick_Configuration();
}

/***************************************************************************//**
 * @brief