ADC1设置,这里采用规则通道+DMA+软件触发,注入通道+CCR4事件触发: 1ADC_InitStructure.ADC_Mode =ADC_Mode_Independent;2ADC_InitStructure.ADC_ScanConvMode =ENABLE;3ADC_InitStructure.ADC_ContinuousConvMode =DISABLE;4ADC_InitStructure.ADC_ExternalTrigConv =ADC_ExternalTrigConv_None;5ADC_InitStructure.ADC_DataAlign...
ADC1设置,这里采用规则通道+DMA+软件触发,注入通道+CCR4事件触发: 1ADC_InitStructure.ADC_Mode =ADC_Mode_Independent;2ADC_InitStructure.ADC_ScanConvMode =ENABLE;3ADC_InitStructure.ADC_ContinuousConvMode =DISABLE;4ADC_InitStructure.ADC_ExternalTrigConv =ADC_ExternalTrigConv_None;5ADC_InitStructure.ADC_DataAlign...
pwm_ch_on(4);//开启TIM1_CH1 通道输出 TIM1->CCR4H = 0;//初始化PWM通道占空比 1:1 TIM1->CCR4L = Num; break; } TIM1->CR1 |= TIM1_CR1_CEN; } //PWM占空比调节 0-100 void Driver_PWMSet(u8 ch,u8 Num) { if(Num > 100) return; switch(ch) { case 1: TIM1->CCR1L = Num...
即可控制TIM1通道3脉宽,占空比为: (x)/(9999+1) TIM1->CCR4 = 任意数值x //0 即可控制TIM1通道4脉宽,占空比为: (x)/(9999+1) 还有其它函数方法改变脉宽,个人觉得简单实用就好, 例程下载(STM32F407VET6,8M晶振通过测试)或http://pan.baidu.com/s/1nvrhGfv...
TIM1, TIM_IT_CC4, ENABLE); //CCR4的中断，这个通过设置CCR4的pulse来控制产生中断相当于PWM-ON...
CC4 update rate = TIM4 counter clock / CCR4_Val = 400KHz --- */ Timer_GPIO_Configuration()...
TIM1->CCR4 = TIM1_CH4_PULSEWIDTH;TIM1->BDTR |= 1 << 15;///TIM1->CR1 = 0x0080;//...
TIM1->CCR4 = 80; TIM1->EGR |= 1<<0; //初始化所有的寄存器 TIM1->CR1|=1<<0; //使能定时器3 while(1) { //调节占空比或者频率 } }©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销...
8.设置TIM1 ARR值8000-1;CCR4 值8000-2;开启channel 4 pwm;开启ADC注入组采样; PWM开关频率 = 160M/(8000*2) = 10k; 9.启动DAC,并设置DAC阈值;启动比较器; 10.在while循环中对VDC和电位器电压采样; VDC电压采样增益:26 = 78k/3k;(基于原理图电阻分压) 11.按键2开始PWM输出,按键3停止PWM输出; 12...
= 8 - 1;TIM2->ARR = 250 - 1;TIM2->CCR2 = 0;TIM2->CCR3 = 0;TIM2->CCR4 ...