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 "DAC.h"               			//包含DAC驱动程序头文件   

/*============================================================================
函数名称：DAC_init
函数返回：无
参数说明：DAC_Channel：通道号DAC0 DAC1。                         
功能概要：初始化DAC模块设定。
=============================================================================*/
void DAC_Init(DAC_Type *DAC_Channel)
{
   
    if(DAC_Channel == DAC0)
    {
        SIM->SCGC2 |= SIM_SCGC2_DAC0_MASK ;      //使能DAC 0		  
    }
    else
    {
        SIM->SCGC2 |= SIM_SCGC2_DAC1_MASK ;      //使能DAC 1
    }   

    SIM->SCGC4  |=  SIM_SCGC4_VREF_MASK ;			//	参考电压初始化	
    VREF->SC    |=  VREF_SC_VREFEN_MASK;            //The module is enabled 
	VREF->SC    |= VREF_SC_REGEN_MASK;              // This bit is used to enable the 1.75 V regulator that can reduce supply variation of the Voltage Reference 
    while (!(VREF->SC & VREF_SC_VREFST_MASK));		//wait for The module is disabled or not stable.

	
	DAC_Channel->C1   &=~ DAC_C1_DMAEN_MASK ;       //DMA enable select 0

	DAC_Channel->C0   |= DAC_C0_DACRFS_MASK ;       //DACREF_2  参考电压	 0=1.75V,1=VDDA=3.3V
	DAC_Channel->C0   |= DAC_C0_DACTRGSEL_MASK;     //The DAC software trigger is selected.
	DAC_Channel->C0   |= DAC_C0_LPEN_MASK;          //low power mode.
	DAC_Channel->C0   |= DAC_C0_DACEN_MASK ;		//The DAC system is enabled

} 
/*============================================================================
函数名称：DAC_Convert
函数返回：void
参数说明：DAC_Channel：通道号DAC0 DAC1。
          VolSetValue: 电压转换设置值  范围（0~4095）
功能概要：执行DAC转换。
When the DAC Buffer is not enabled, DATA[11:0] controls the output voltage based on the following
formula. Vout = Vin * (1 + DACDAT0[11:0])/4096
When the DAC Buffer is enabled, DATA is mapped to the 16-word buffer.
=============================================================================*/
void DAC_Convert(DAC_Type *DAC_Channel, unsigned short VolSetValue)
{
	DAC_Channel->DAT[0].DATL=VolSetValue&0x00ff; 
	DAC_Channel->DAT[0].DATH=(VolSetValue&0x0f00)>>8; 
}