STM32F3系列固件库模板

#include “bsp_dac.h“

TIM_TimebaseInitTypeDef    TIM_TimebaseStructure;
DAC_InitTypeDef            DAC_InitStructure;
DMA_InitTypeDef            DMA_InitStructure;
const uint16_t Sine12bit[32] = {
                      2047 2447 2831 3185 3498 3750 3939 4056 4095 4056
                      3939 3750 3495 3185 2831 2447 2047 1647 1263  909 
                       599  344  155   38    0   38  155  344  599  909 
                      1263 1647};	  
const uint8_t Escalator8bit[6] = {0x0 0x33 0x66 0x99 0xCC 0xFF};
uint8_t Idx = 0;
__IO uint8_t  SelectedWavesForm = 1;
__IO uint8_t WaveChange = 1; 

/* Private function prototypes -----------------------------------------------*/
static void DAC_Config（void）;
static void TIM_Config（void）;

/**
  * @brief  TIM2 configuration to trigger DAC conversion 

  * @param  None
  * @retval None
  */
static void TIM_Config（void）
{
  TIM_TimebaseInitTypeDef    TIM_TimebaseStructure;
  
  /* TIM2 Periph clock enable */
  RCC_APB1PeriphClockCmd（RCC_APB1Periph_TIM2 ENABLE）;
  
  /* Time base configuration */
  TIM_TimebaseStructInit（&TIM_TimebaseStructure）; 
  TIM_TimebaseStructure.TIM_Period = 1000-1;          //100us*1000
  TIM_TimebaseStructure.TIM_Prescaler = 720-1;//7200-1;       //100
  TIM_TimebaseStructure.TIM_ClockDivision = 0x0;    
  TIM_TimebaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  
  TIM_TimebaseInit（TIM2 &TIM_TimebaseStructure）;

  /* TIM2 TRGO selection */
  TIM_SelectOutputTrigger（TIM2 TIM_TRGOSource_Update）;
  
  /* TIM2 enable counter */
  TIM_Cmd（TIM2 ENABLE）;
}

/**
  * @brief  DAC channels configurations （PA4 and PA5 in analog
  *                           enable DAC clock enable DMA2 clock）
  * @param  None
  * @retval None
  */
static void DAC_Config（void）
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* DMA2 clock enable （to be used with DAC） */
  RCC_AHBPeriphClockCmd（RCC_AHBPeriph_DMA2 ENABLE）;

  /* DAC Periph clock enable */
  RCC_APB1PeriphClockCmd（RCC_APB1Periph_DAC ENABLE）;

  /* GPIOA clock enable */
  RCC_AHBPeriphClockCmd（RCC_AHBPeriph_GPIOA ENABLE）;
  
  /* Configure PA.05 （DAC_OUT1） as analog */
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_5;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init（GPIOA &GPIO_InitStructure）;
}

void DAC_Test_init（void）
{
	TIM_Config（）;
	DAC_Config（）;
	
          /* DAC channel2 Configuration */
          DAC_DeInit（DAC1）; 
          DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
          DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
          DAC_InitStructure.DAC_Buffer_Switch = DAC_BufferSwitch_Disable;

          /* DAC Channel2 Init */
          DAC_Init（DAC1 DAC_Channel_2 &DAC_InitStructure）;

          /* Enable DAC Channel2 */
          DAC_Cmd（DAC1 DAC_Channel_2 ENABLE）;
          
          /* DMA2 channel3 configurati

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     文件        211  2018-09-08 17:13  STM32F3_Templatespincsp_dac.h

     文件       5197  2018-09-09 16:45  STM32F3_Templatespsrcsp_dac.c

     文件     726626  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDeviceSTSTM32F30xIncludestm32f30x.h

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     文件       8440  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_class_marks_exampleARMarm_class_marks_example_f32.c

     文件       8440  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_class_marks_exampleGCCarm_class_marks_example_f32.c

     文件      11097  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_convolution_exampleARMarm_convolution_example_f32.c

     文件      10962  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_convolution_exampleARMmath_helper.c

     文件       3085  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_convolution_exampleARMmath_helper.h

     文件      11097  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_convolution_exampleGCCarm_convolution_example_f32.c

     文件      10962  2015-07-08 19:34  STM32F3_TemplateLibrariesCMSISDSP_LibExamplesarm_convolution_exampleGCCmath_helper.c

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