90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/**************************************************************************//**
|
|
* @file system_Mini58Series.c
|
|
* @version V1.00
|
|
* $Revision: 3 $
|
|
* $Date: 15/02/13 9:13a $
|
|
* @brief Mini58 series system clock init code and assert handler
|
|
*
|
|
* @note
|
|
* Copyright (C) 2015 Nuvoton Technology Corp. All rights reserved.
|
|
*****************************************************************************/
|
|
|
|
#include <stdint.h>
|
|
#include "Mini58Series.h"
|
|
|
|
|
|
/*----------------------------------------------------------------------------
|
|
Clock Variable definitions
|
|
*----------------------------------------------------------------------------*/
|
|
uint32_t __HSI = __HIRC; /*!< Factory Default is internal high speed RC 44.2368M divided by 2 */
|
|
uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
|
|
uint32_t PllClock = __HIRC; /*!< PLL Output Clock Frequency */
|
|
uint32_t CyclesPerUs; /*!< Cycles per micro second */
|
|
|
|
/**
|
|
* @brief Check HIRC clock rate feed to HCLK
|
|
*
|
|
* @return none
|
|
*/
|
|
|
|
void SystemInit (void)
|
|
{
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief This function is used to update the variable SystemCoreClock
|
|
* and must be called whenever the core clock is changed.
|
|
* @param None.
|
|
* @retval None.
|
|
*/
|
|
|
|
void SystemCoreClockUpdate (void)
|
|
{
|
|
uint32_t u32CoreFreq, u32ClkSrc;
|
|
|
|
/* Update PLL Clock */
|
|
PllClock = CLK_GetPLLClockFreq();
|
|
|
|
u32ClkSrc = CLK->CLKSEL0 & CLK_CLKSEL0_HCLKSEL_Msk;
|
|
|
|
if (u32ClkSrc == 0)
|
|
u32CoreFreq = __XTAL; /* External crystal clock */
|
|
else if (u32ClkSrc ==2)
|
|
u32CoreFreq = PllClock; /* PLL clock */
|
|
else if (u32ClkSrc == 3)
|
|
u32CoreFreq = __IRC10K; /* Internal 10K crystal clock */
|
|
else if (u32ClkSrc == 7)
|
|
u32CoreFreq = __HIRC; /* Factory Default is internal RC */
|
|
else
|
|
u32CoreFreq = __HIRC; /* unknown value, use Factory Default is internal RC */
|
|
|
|
SystemCoreClock = (u32CoreFreq/((CLK->CLKDIV & CLK_CLKDIV_HCLKDIV_Msk) + 1));
|
|
CyclesPerUs = (SystemCoreClock + 500000) / 1000000;
|
|
}
|
|
|
|
#if USE_ASSERT
|
|
|
|
/**
|
|
* @brief Assert Error Message
|
|
*
|
|
* @param[in] file the source file name
|
|
* @param[in] line line number
|
|
*
|
|
* @return None
|
|
*
|
|
* @details The function prints the source file name and line number where
|
|
* the ASSERT_PARAM() error occurs, and then stops in an infinite loop.
|
|
*/
|
|
void AssertError(uint8_t * file, uint32_t line)
|
|
{
|
|
|
|
printf("[%s] line %d : wrong parameters.\r\n", file, line);
|
|
|
|
/* Infinite loop */
|
|
while(1) ;
|
|
}
|
|
#endif
|
|
|
|
/*** (C) COPYRIGHT 2015 Nuvoton Technology Corp. ***/
|