STM32-Player-Doc/STM32H743VI 开发版/STM32H750驱动例程(HAL库)/例33 USB读卡器(Slave)/HARDWARE/DAC/dac.c

#include "dac.h"
//////////////////////////////////////////////////////////////////////////////////	 
/**********************************************************************/

//DAC<41><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	 

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	
/*********************************************************************/								  
////////////////////////////////////////////////////////////////////////////////// 	

DAC_HandleTypeDef DAC1_Handler;			//DAC<41><43><EFBFBD><EFBFBD>
DAC_ChannelConfTypeDef DACCH1_Config;	//DAC1ͨ<31><CDA8>1
	
	

/**********************************************************************/


//<2F><>ʼ<EFBFBD><CABC>DAC

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	
/*********************************************************************/	

void DAC1_Init(void)
{
    DAC1_Handler.Instance=DAC1;
    HAL_DAC_Init(&DAC1_Handler);               	//<2F><>ʼ<EFBFBD><CABC>DAC
    
    DACCH1_Config.DAC_Trigger=DAC_TRIGGER_NONE;             //<2F><>ʹ<EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    DACCH1_Config.DAC_OutputBuffer=DAC_OUTPUTBUFFER_DISABLE;//DAC1<43><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD>
    HAL_DAC_ConfigChannel(&DAC1_Handler,&DACCH1_Config,DAC_CHANNEL_2);//DACͨ<43><CDA8>2<EFBFBD><32><EFBFBD><EFBFBD>
    
    HAL_DAC_Start(&DAC1_Handler,DAC_CHANNEL_2);  //<2F><><EFBFBD><EFBFBD>DACͨ<43><CDA8>1
}


/**********************************************************************/

//DAC<41>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
//<2F>˺<EFBFBD><CBBA><EFBFBD><EFBFBD>ᱻHAL_DAC_Init()<29><><EFBFBD><EFBFBD>
//hdac:DAC<41><43><EFBFBD><EFBFBD> 

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	
/*********************************************************************/	

void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
{      
    GPIO_InitTypeDef GPIO_Initure;
	
    __HAL_RCC_DAC12_CLK_ENABLE();           //ʹ<><CAB9>DACʱ<43><CAB1>
    __HAL_RCC_GPIOA_CLK_ENABLE();			      //<2F><><EFBFBD><EFBFBD>GPIOAʱ<41><CAB1>
	
    GPIO_Initure.Pin=GPIO_PIN_5;            //PA5
    GPIO_Initure.Mode=GPIO_MODE_ANALOG;     //ģ<><C4A3>
    GPIO_Initure.Pull=GPIO_NOPULL;          //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    HAL_GPIO_Init(GPIOA,&GPIO_Initure);
}



/**********************************************************************/

//<2F><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ
//vol:0~3300,<2C><><EFBFBD><EFBFBD>0~3.3V

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	
/*********************************************************************/	

void DAC1_Set_Vol(u16 vol)
{
	double temp=vol;
	temp/=1000;
	temp=temp*4096/3.3;
	
	HAL_DAC_SetValue(&DAC1_Handler,DAC_CHANNEL_2,DAC_ALIGN_12B_R,temp);//12λ<32>Ҷ<EFBFBD><D2B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>DACֵ
}




































/**********************************************************************/

//DAC<41><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>	 

//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
//DevEBox  <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com	
/*********************************************************************/