k60-keil

K60-Keil版本（下载安装MDK4.23）

/*============================================================================
文件名称：DAC.c
功能概要：K60 DAC
版权所有：卿丞数码
=============================================================================*/
#include <MK60N512MD100.h>              // MK60N512MD100 Definitions      
#include "ADC.h"               			//包含DAC驱动程序头文件   


#define __ADC0_IRQ 0                     /* 0=pooling mode, 1=interrupt mode   */
#define __ADC1_IRQ 0                     /* 0=pooling mode, 1=interrupt mode   */

#define __DAC_DMA 0 	
	
uint8_t	ADC0_Channel=4,	ADC1_Channel=4;
uint16_t ADC0_Val[30]={0};
uint16_t ADC1_Val[30]={0};
uint16_t ADC0_DmaVal[30]={0};
uint16_t ADC1_DmaVal[30]={0};


/*============================================================================
函数名称：ADC_Calib 
函数返回：无
参数说明：ADC_Channel：通道号ADC0 ADC1。                       
功能概要：Perform calibration of thmaximum avg. samples shoube less or equal
		  to 4MHz.reconfigured as desired.
==============================================================================*/
void ADC_Calib(ADC_Type *ADChannel) 
{

	uint16_t val;
	ADChannel->SC2 &= ~ADC_SC2_ADTRG_MASK;
	ADChannel->SC3 &= ~ADC_SC3_ADCO_MASK;
	ADChannel->SC3 |=  ADC_SC3_AVGE_MASK | ADC_SC3_AVGS_MASK;
	
	ADChannel->SC3 |=  ADC_SC3_CAL_MASK;       /* Start calibration (set CAL bit)    */
	
	ADChannel->SC3 |=  ADC_SC3_CAL_MASK;       /* Start calibration (set CAL bit)    */
	
	while (!(ADChannel->SC1[0] & ADC_SC1_COCO_MASK));  /* Wait until conversion done */
	
	val  = ADChannel->CLPD + ADChannel->CLPS;
	val += ADChannel->CLP0 + ADChannel->CLP1 + ADChannel->CLP2 + ADChannel->CLP3 + ADChannel->CLP4;
	val /= 2;                             /* Variable must be divided by two    */
	ADChannel->PG = val | 0x8000;              /* MBS must be set                    */
	
	val  = ADChannel->CLMD + ADChannel->CLMS;
	val += ADChannel->CLM0 + ADChannel->CLM1 + ADChannel->CLM2 + ADChannel->CLM3 + ADChannel->CLM4;
	val /= 2;                             /* Variable must be divided by two    */
	ADChannel->MG = val | 0x8000;              /* MBS must be set                    */
	
	ADChannel->SC3 &= ADC_SC3_CAL_MASK;        /* Clear CAL bit                      */      	        
}
/*============================================================================
函数名称：ADC_init
函数返回：无
参数说明：ADC_Channel：通道号ADC0 ADC1。                         
功能概要：初始化ADC模块设定。
=============================================================================*/
void ADC_Init(ADC_Type *ADChannel,uint8_t Accuracy)
{
	switch(Accuracy)
	{
		case 8:
		Accuracy=0x00;
		break;
		case 12:
		Accuracy=0x01;
		break;
		case 10:
		Accuracy=0x02;
		break;
		case 16:
		Accuracy=0x03;
		break;
		default:
		Accuracy=0x03;
		break;
	}
    if(ADChannel==ADC0)
	{		
		SIM->SOPT7	&=~	SIM_SOPT7_ADC0ALTTRGEN_MASK;  	//PDB trigger selected for ADC0
		SIM->SOPT7	&=~	SIM_SOPT7_ADC0PRETRGSEL_MASK;	//Pre-trigger A selected for ADC0.
		SIM->SOPT7	|=	SIM_SOPT7_ADC0TRGSEL(0);
		SIM->SCGC6	|=	SIM_SCGC6_ADC0_MASK;

	}
	else if(ADChannel==ADC1)
	{
		SIM->SOPT7	&=~  SIM_SOPT7_ADC1ALTTRGEN_MASK; 	//PDB trigger selected for ADC1
		SIM->SOPT7	&=~  SIM_SOPT7_ADC1PRETRGSEL_MASK;	//Pre-trigger A selected for ADC1.
		SIM->SOPT7	|=   SIM_SOPT7_ADC1TRGSEL(0);
		SIM->SCGC3	|=	 SIM_SCGC3_ADC1_MASK;           // Enable ADC 1 gate clocking 
	}
	
	ADChannel->CFG1	|=	ADC_CFG1_MODE(Accuracy);   		// Select  conversion   Accuracy
	ADChannel->CFG1	|=	ADC_CFG1_ADICLK(0);		   		// Select Bus clock
	ADChannel->CFG1	|=	ADC_CFG1_ADIV(2);    	  		// The divide ratio is 1 and the clock rate is input clock.
	ADChannel->CFG1	|=	ADC_CFG1_ADLSMP_MASK;    		// Select	Long sample time	
	ADChannel->CFG1	&=~	ADC_CFG1_ADLPC_MASK;	 		//1-Low power configuration   0 Normal power configuration.
	
	ADChannel->CFG2	&=~	ADC_CFG2_MUXSEL_MASK;	 		// ADxxa channels are selected 
	ADChannel->CFG2	|=	ADC_CFG2_ADLSTS(0);		 		//Default longest sample time (20 extra ADCK cycles; 24 ADCK cycles total).
	ADChannel->CFG2	|=	ADC_CFG2_ADHSC_MASK; 			//High speed conversion sequence selected
	ADChannel->CFG2	&=~	ADC_CFG2_ADACKEN_MASK;	 		//Asynchronous clock output disabled
	
	ADC_Calib (ADChannel);                         		/* Perform calibration of the ADC     */

	ADChannel->SC2	|=	ADC_SC2_REFSEL(0);      		//Default voltage reference pin pair (External pins V REFH and V REFL)
#if __DAC_DMA							
	ADChannel->SC2	|=	ADC_SC2_DMAEN_MASK;  	   		//DMA is enabled 	

#endif
	

	/*
	00 4 samples averaged.
	01 8 samples averaged.
	10 16 samples averaged.
	11 32 samples averaged.
	*/
	ADChannel->SC3	|=	ADC_SC3_AVGE_MASK ; 			//Hardware average function enabled
	ADChannel->SC3	|=	ADC_SC3_AVGS(0);				//Hardware average select
	ADChannel->SC3	|=	ADC_SC3_ADCO_MASK ;				//Continuous conversion enable

	ADChannel->SC1[0]	=   0;							//set to zero
	ADChannel->SC1[0]  |=	ADC_SC1_AIEN_MASK;			//Conversion complete interrupt enabled
	ADChannel->SC1[0]  &=~	ADC_SC1_DIFF_MASK;   		//diff=0,Single-ended conversions and input channels are selected
	ADChannel->SC1[0]  |=	ADC_SC1_ADCH(4);

#if __ADC0_IRQ
	NVIC_EnableIRQ(ADC0_IRQn);            				/* Enable ADC0 Interrupt               */
#endif
#if __ADC1_IRQ
	NVIC_EnableIRQ(ADC1_IRQn);            				/* Enable ADC1 Interrupt               */
#endif	
	 
} 
/*============================================================================
函数名称：ADC_GetVal
函数输入：ADChannel模块号 Channel通道号:具体管脚参考管脚图
函数返回：通道电压值
参数说明：ADC_Channel：通道号ADC0 ADC1。                         
功能概要：采集电压值
==============================================================================*/
uint16_t ADC_GetVal (ADC_Type *ADChannel,uint8_t Channel) 
{
	uint16_t Val=0;
	ADChannel->SC1[0] &=~ ADC_SC1_ADCH_MASK;			//  赋值前先清零
	ADChannel->SC1[0] |=  ADC_SC1_ADCH(Channel);		// When DIFF=0, DADP0 is selected as input 具体管脚参考管脚图
	while (( ADChannel->SC1[0] & ADC_SC1_COCO_MASK ) != ADC_SC1_COCO_MASK);
	Val=ADChannel->R[0];    
	ADChannel->SC1[0]   &=~ ADC_SC1_COCO_MASK;  		// clear flag
	return Val; 
}
/*============================================================================
函数名称：ADC_Close
函数输入：ADChannel模块号 Channel通道号
函数返回：通道电压值
参数说明：ADC_Channel：通道号ADC0 ADC1。                         
功能概要：关闭AD模块
==============================================================================*/
void ADC_Close(ADC_Type *ADChannel)
{
  if(ADChannel==ADC0)
	{		
		SIM->SOPT7 &=~ SIM_SOPT7_ADC0TRGSEL(0);
		SIM->SCGC6 &=~ SIM_SCGC6_ADC0_MASK;			    // disable ADC 0 gate clocking 

	}
	else if(ADChannel==ADC1)
	{
		SIM->SOPT7 &=~ SIM_SOPT7_ADC1TRGSEL(0);
		SIM->SCGC3 &=~ SIM_SCGC3_ADC1_MASK;         	// disable ADC 1 gate clocking 
	}
	ADChannel->SC1[0] = ADC_SC1_ADCH(0x1f);	  		    //Module disabled
}
/*============================================================================
函数名称：ADC_DMA_Init
函数输入：ADChannel模块号:0-1   DMAChannelDMA通道号：0-15
函数返回：void
参数说明：ADC_Channel：通道号ADC0 ADC1。                         
功能概要：ADC转换值通过DMA传输到相应位置
==============================================================================*/
void ADC_DMA_Init(ADC_Type *ADChannel,uint8_t DMAChannel)	   		
{

	SIM->SCGC6 |= SIM_SCGC6_DMAMUX_MASK;
	SIM->SCGC7 |= SIM_SCGC7_DMA_MASK;
	DMA->TCD[DMAChannel].NBYTES_MLNO=2;	   
	DMA->TCD[DMAChannel].NBYTES_MLOFFNO=2|DMA_NBYTES_MLOFFYES_SMLOE_MASK|DMA_NBYTES_MLOFFYES_DMLOE_MASK;
	DMA->CR= DMA_CR_EMLM_MASK|DMA_CR_CLM_MASK;	

	if(ADChannel==ADC0)
	{																		
		DMA->TCD[DMAChannel].SADDR = (uint32_t)(&(ADC0->R[0])); 						    //取ADC0数据存储器地址
		DMA->TCD[DMAChannel].SOFF = 0;  													 // address offset
											    	
		/*	
		0 : 8 bit
		1 : 16 bit
		2 : 32 bit
		4 : 16 byte 
		*/
		DMA->TCD[DMAChannel].ATTR   = 0;
		DMA->TCD[DMAChannel].ATTR  |=  DMA_ATTR_SSIZE(1) | DMA_ATTR_DSIZE(1);  			//  source/dest size  
		DMA->TCD[DMAChannel].ATTR  |=  DMA_ATTR_SMOD(0);									//Source address modulo feature is disabled
		DMA->TCD[DMAChannel].DADDR  =  (uint32_t)ADC0_DmaVal; 							//转换值存在ADC0_DmaVal[]
		DMA->TCD[DMAChannel].DOFF   =  0; 												//address offset	
		DMAMUX->CHCFG[DMAChannel]   =  DMAMUX_CHCFG_ENBL_MASK | DMAMUX_CHCFG_SOURCE(40); //ADC0 DMA channel=40，refer to DMA request sources	p118
	}
	else if(ADChannel==ADC1)
	{
		DMA->TCD[DMAChannel].SADDR = (uint32_t)(&(ADC1->R[0])); 						    //取ADC1数据存储器地址
		DMA->TCD[DMAChannel].SOFF  = 0;  												// address offset
		DMA->TCD[DMAChannel].ATTR  = 0;
		DMA->TCD[DMAChannel].ATTR |= DMA_ATTR_SSIZE(1) | DMA_ATTR_DSIZE(1);  			//  source/dest size  
		DMA->TCD[DMAChannel].ATTR |= DMA_ATTR_SMOD(0);									//Source address modulo feature is disabled
		DMA->TCD[DMAChannel].DADDR = (uint32_t)ADC1_DmaVal; 							    //转换值存在ADC1_DmaVal[]
		DMA->TCD[DMAChannel].DOFF  = 0; 												    //address offset	
		DMAMUX->CHCFG[DMAChannel] |=DMAMUX_CHCFG_TRIG_MASK| DMAMUX_CHCFG_ENBL_MASK | DMAMUX_CHCFG_SOURCE(41);   //ADC0 DMA channel=41，refer to DMA request sources	p118
	}
	DMA->ERQ |= 1<<DMAChannel;																	// Enable CH0 of DMA										    				
}


/*============================================================================
函数名称：ADC0_IRQHandler
函数输入：
函数返回：void
参数说明：                      
功能概要：ADC0中断，采集的AD值存放在ADC0_Val[]中 
==============================================================================*/
void ADC0_IRQHandler(void) 
{	
	ADC0_Val[ADC0_Channel]= ADC0->R[0];
	ADC0_Channel++;
	if(ADC0_Channel==30)ADC0_Channel=4;
	ADC0->SC1[0] &=~ ADC_SC1_ADCH_MASK;					//  赋值前先清零
	ADC0->SC1[0] |=  ADC_SC1_ADCH(ADC1_Channel);		// When DIFF=0, DADP0 is selected as input
	ADC0->SC1[0] &=~ ADC_SC1_COCO_MASK;   				// clear flag
}
/*============================================================================
函数名称：ADC1_IRQHandler
函数输入：
函数返回：void
参数说明：                      
功能概要：ADC1中断 采集的AD值存放在ADC1_Val[]中 
==============================================================================*/
void ADC1_IRQHandler(void) 
{	
	ADC1_Val[ADC1_Channel]	= ADC1->R[0];
	ADC1_Channel++;
	if(ADC1_Channel==30)ADC1_Channel=4;
	ADC1->SC1[0] &=~ ADC_SC1_ADCH_MASK;					//  赋值前先清零
	ADC1->SC1[0] |=  ADC_SC1_ADCH(ADC1_Channel);		// When DIFF=0, DADP0 is selected as input
	ADC1->SC1[0] &=~ ADC_SC1_COCO_MASK;   				// clear flag
}

/*-----------------------------------------------------------------------------
 * End of file
 *----------------------------------------------------------------------------*/