STM32

请问STM32F103VCT6 ADC1与ADC2同步规则转换如何配置？

2019-07-14 13:34发布

站内问答 / STM32/STM8
3834 7 1455
             最近做一个项目，需要用STM32的ADC1与ADC2通过定时器控制采样，并DMA读取。但是不知道该如何配置，还请高手们给予帮助.......................
友情提示: 此问题已得到解决，问题已经关闭,关闭后问题禁止继续编辑，回答。
7条回答
guanrui1202
2019-07-15 05:57
 /* ADC1 configuration ------------------------------------------------------*/
  ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
  ADC_InitStructure.ADC_ScanConvMode = DISABLE;
  ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
  ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
  ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
  ADC_InitStructure.ADC_NbrOfChannel = 1;
  ADC_Init(ADC1, &ADC_InitStructure);
 
/* Enable ADC1 external trigger */ 
  ADC_ExternalTrigConvCmd(ADC1, ENABLE);
 
 /* TIM1 configuration ------------------------------------------------------*/ 
  /* Time Base configuration */
  TIM_TimeBaseStructInit(&TIM_TimeBaseStructure); 
  TIM_TimeBaseStructure.TIM_Period = 0xFF;          
  TIM_TimeBaseStructure.TIM_Prescaler = 0x4;       
  TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;    
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  
  TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
  /* TIM1 channel1 configuration in PWM mode */
  TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; 
  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;                
  TIM_OCInitStructure.TIM_Pulse = 0x7F; 
  TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;         
  TIM_OC1Init(TIM1, &TIM_OCInitStructure);
 
官方驱动库中示例工程ADC下面的TIMTrigger_AutoJnjection就是用定时器出发ADC转换的.
另外可参考网上的文章stm32定时器触发ADC参考．

一周热门 更多>