rt-thread/bsp/hc32l196/Libraries/CMSIS/Device/HDSC/HC32L196/Source/system_hc32l19x.c

/*******************************************************************************
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/******************************************************************************/
/** \file system_hc32l136.c
 **
 ** System clock initialization.
 ** @link SampleGroup Some description @endlink
 **
 **   - 2019-03-01  1.0  Lux First version.
 **
 ******************************************************************************/

/******************************************************************************/
/* Include files                                                              */
/******************************************************************************/
#include "base_types.h"
#include "hc32l19x.h"
#include "system_hc32l19x.h"
#include "hc32l196_sysctrl.h"

/**
 ******************************************************************************
 ** System Clock Frequency (Core Clock) Variable according CMSIS
 ******************************************************************************/
uint32_t SystemCoreClock = 4000000;


//add clock source.
void SystemCoreClockUpdate (void) // Update SystemCoreClock variable
{
    SystemCoreClock = Sysctrl_GetHClkFreq();
}

/**
 ******************************************************************************
 ** \brief  对MCU未引出IO端口进行默认配置.
 **
 ** \param  none
 ** \return none
 ******************************************************************************/
static void _InitHidePin(void)
{
    uint32_t tmpReg = M0P_SYSCTRL->PERI_CLKEN0;
	
	M0P_SYSCTRL->PERI_CLKEN0_f.GPIO = 1;
	
#if defined(HC32L19xPxxx)	      //100PIN MCU	  
	M0P_GPIO->PFADS &= 0xFF4F;  ///< PF04/PF05/PF07配置为数字端口    
	
    M0P_GPIO->PFDIR	|= 0x00B0;  ///< PF04/PF05/PF07配置为端口输入	
	  
	M0P_GPIO->PFPU  |= 0x00B0;  ///< PF04/PF05/PF07配置为上拉
	
#elif defined(HC32L19xMxxx)     //80PIN MCU	  
	M0P_GPIO->PDADS &= 0x0F1F;  ///< PD05~07/PD12~15配置为数字端口	  
	M0P_GPIO->PEADS &= 0x783C;  ///< PE00/PE01/PE06~10/PE15配置为数字端口	  
	M0P_GPIO->PFADS &= 0xF9F3;  ///< PF02/PF03/PF09/PF10配置为数字端口	
    
    M0P_GPIO->PDDIR	|= 0xF0E0;  ///< PD05~07/PD12~15配置为端口输入    
	M0P_GPIO->PEDIR	|= 0x87C3;  ///< PE00/PE01/PE06~10/PE15配置为端口输入	  
	M0P_GPIO->PFDIR	|= 0x060C;  ///< PF02/PF03/PF09/PF10配置为数字端口
	
	  
	M0P_GPIO->PDPU  |= 0xF0E0;  ///< PD05~07/PD12~15配置为上拉	  
	M0P_GPIO->PEPU  |= 0x87C3;  ///< PE00/PE01/PE06~10/PE15配置为上拉	  
	M0P_GPIO->PFPU  |= 0x060C;  ///< PF02/PF03/PF09/PF10配置为数字端口
		
#elif defined(HC32L19xKxxx)     //64PIN MCU	  
	M0P_GPIO->PDADS &= 0x0004;  ///< PD00/PD01/PD03~15配置为数字端口	  
	M0P_GPIO->PEADS &= 0x0000;  ///< PE00~15配置为数字端口	  
	M0P_GPIO->PFADS &= 0xF9F3;  ///< PF02/PF03/PF09/PF10配置为数字端口	
    
	M0P_GPIO->PDDIR	|= 0xFFFB;  ///< PD00/PD01/PD03~15配置为端口输入    
	M0P_GPIO->PEDIR	|= 0xFFFF;  ///< PE00~15配置为端口输入	  
	M0P_GPIO->PFDIR	|= 0x060C;  ///< PF02/PF03/PF09/PF10配置为数字端口	
	  
	M0P_GPIO->PDPU  |= 0xFFFB;  ///< PD00/PD01/PD03~15配置为上拉	  
	M0P_GPIO->PEPU  |= 0xFFFF;  ///< PE00~15配置为上拉	  
	M0P_GPIO->PFPU  |= 0x060C;  ///< PF02/PF03/PF09/PF10配置为数字端口
		
#elif defined(HC32L19xJxxx)     //48PIN MCU	  
	M0P_GPIO->PCADS &= 0xE000;  ///< PC00~12配置为数字端口	  
	M0P_GPIO->PDADS &= 0x0000;  ///< PD00~15配置为数字端口	  
	M0P_GPIO->PEADS &= 0x0000;  ///< PE00~15配置为数字端口	  
	M0P_GPIO->PFADS &= 0xF9C3;  ///< PF02~05/PF09/PF10配置为数字端口	
    
	M0P_GPIO->PCDIR	|= 0x1FFF;  ///< PC00~12配置为端口输入    
	M0P_GPIO->PDDIR	|= 0xFFFF;  ///< PD00~15配置为端口输入    
	M0P_GPIO->PEDIR	|= 0xFFFF;  ///< PE00~15配置为端口输入	  
	M0P_GPIO->PFDIR	|= 0x063C;  ///< PF02~05/PF09/PF10配置为数字端口
	
	  
	M0P_GPIO->PCPU  |= 0x1FFF;  ///< PC00~12配置为上拉	  
	M0P_GPIO->PDPU  |= 0xFFFF;  ///< PD00~15配置为上拉	  
    M0P_GPIO->PEPU  |= 0xFFFF;  ///< PE00~15配置为上拉	  
	M0P_GPIO->PFPU  |= 0x063C;  ///< PF02~05/PF09/PF10配置为数字端口
		
#elif defined(HC32L19xFxxx)     //32PIN MCU	  
	M0P_GPIO->PAADS &= 0xFFF4;  ///< PA00/PA01/PA03配置为数字端口	  
	M0P_GPIO->PBADS &= 0x08FB;  ///< PB02/PB08~10/PB12~15配置为数字端口	  
	M0P_GPIO->PCADS &= 0xC000;  ///< PC00~13配置为数字端口	  
	M0P_GPIO->PDADS &= 0x0000;  ///< PD00~15配置为数字端口	  
	M0P_GPIO->PEADS &= 0x0000;  ///< PE00~15配置为数字端口	  
    M0P_GPIO->PFADS &= 0xF903;  ///< PF02~07/PF09/PF10配置为数字端口	
    
	M0P_GPIO->PADIR	|= 0x000B;  ///< PA00/PA01/PA03配置为端口输入    
	M0P_GPIO->PBDIR	|= 0xF704;  ///< PB02/PB08~10/PB12~15配置为端口输入    
	M0P_GPIO->PCDIR	|= 0x3FFF;  ///< PC00~13配置为端口输入    
	M0P_GPIO->PDDIR	|= 0xFFFF;  ///< PD00~15配置为端口输入    
	M0P_GPIO->PEDIR	|= 0xFFFF;  ///< PE00~15配置为端口输入	  
	M0P_GPIO->PFDIR	|= 0x06FC;  ///< PF02~07/PF09/PF10配置为数字端口	
	  
	M0P_GPIO->PAPU  |= 0x000B;  ///< PA00/PA01/PA03配置为上拉	  
	M0P_GPIO->PBPU  |= 0xF704;  ///< PB02/PB08~10/PB12~15配置为上拉	  
	M0P_GPIO->PCPU  |= 0x3FFF;  ///< PC00~13配置为上拉	  
	M0P_GPIO->PDPU  |= 0xFFFF;  ///< PD00~15配置为上拉	  
	M0P_GPIO->PEPU  |= 0xFFFF;  ///< PE00~15配置为上拉	  
	M0P_GPIO->PFPU  |= 0x06FC;  ///< PF02~07/PF09/PF10配置为数字端口
    
#endif
	
	M0P_SYSCTRL->PERI_CLKEN0 = tmpReg;
}

/**
 ******************************************************************************
 ** \brief  Setup the microcontroller system. Initialize the System and update
 ** the SystemCoreClock variable.
 **
 ** \param  none
 ** \return none
 ******************************************************************************/
void SystemInit(void)
{
    M0P_SYSCTRL->RCL_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C22ul)));
    M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C08ul)));
    SystemCoreClockUpdate();
	_InitHidePin();
}