dac_mobile.c

#include "dac_mobile.h"

void InitDACMobile(void) {
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);  
	GPIO_InitTypeDef PORTA;    

	GPIO_StructInit(&PORTA); 
	PORTA.GPIO_Mode = GPIO_Mode_AIN;   
	PORTA.GPIO_Pin = GPIO_Pin_5;
	PORTA.GPIO_Speed = GPIO_Speed_2MHz; 
	GPIO_Init(GPIOA, &PORTA);   

	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM7, ENABLE);

	TIM7->PSC = 5;
	TIM7->ARR = 600;
	TIM_ITConfig(TIM7, TIM_DIER_UIE , ENABLE);      
	TIM_SelectOutputTrigger(TIM7, TIM_TRGOSource_Update);     
	TIM_Cmd(TIM7, ENABLE); 

	RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
	DAC_InitTypeDef DAC_InitStructure;  

	DAC_StructInit(&DAC_InitStructure);  
	DAC_InitStructure.DAC_Trigger = DAC_Trigger_T7_TRGO;
	DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;  
	DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;  
	DAC_Init(DAC_Channel_2, &DAC_InitStructure);   
	DAC_Cmd(DAC_Channel_2, ENABLE); 
}