void TIM_OC1PolarityConfig(TIM_TypeDef* TIMx, uint16_t TIM_OCPolarity) - 用于配置定时器的输出比较通道 1(OC1)的极性 void TIM_CCxCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCx) - 用于控制定时器的比较/捕获通道的开关状态 void TIM_SelectOCxM(TIM_TypeDef* TIMx, uint16_...
__HAL_TIM_SET_COMPARE(&htim4,TIM_CHANNEL_1,6400) ; // 输入通道1的捕获比较值CCR1 ,PWM个数为6400个 __HAL_TIM_SET_COMPARE(&htim4,TIM_CHANNEL_2,6400) ; // 输入通道2的捕获比较值CCR2 HAL_TIM_OC_Start_IT(&htim4,TIM_CHANNEL_1) ; //开启定时器4通道1的输入捕获中断 HAL_TIM_OC_S...
然后第一步开启时钟,如果是通用定时器那是挂在 APB1 上的,所以直接 RCC_APB1PeriphClockCmd。以通用定时器 TIM2 为例: RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); 第二步选择时钟源,有多个函数,对应都可见上框图: TIM_InternalClockConfig 使用内部时钟 TIM_ITRxExternalClockConfig 使用 ITRx ...
HAL_TIM_OC_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_2); TIM_CCxChannelCmd(TIM2, TIM_CHANNEL_2, TIM_CCx_ENABLE);//HAL_TIM_Base_Start_IT(&htim2); } 3.2.2 波形 极性是低电平时,会先输出脉宽为计数周期的高电平,当TIMx_CNT=TIMx_CCR2后输出一直为低电平(有效电平) 极性是高电平时...
(TIM_CCx)); tmp = CCER_CCE_Set TIM_Channel; /* Reset the CCxE Bit */ TIMx-CCER = (uint16_t)~ tmp; /* Set or reset the CCxE Bit */ //TIMx-CCER |= (uint16_t)(TIM_CCx TIM_Channel); //原来的库函数错误 //修改为: if(TIM_CCx==ENABLE) TIMx-CCER |= tmp; } /** ...
* This parameter can be: TIM_CCx_Enable or TIM_CCx_Disable.* @retval None */ void TIM_CCxCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCx) { uint16_t tmp = 0; /* Check the parameters */ assert_param(IS_TIM_LIST8_PERIPH(TIMx));assert_param(IS_TIM_...
* This parameter can be: TIM_CCx_Enable or TIM_CCx_Disable.* @retval None */ void TIM_CCxCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCx) { uint16_t tmp = 0; /* Check the parameters */ assert_param(IS_TIM_LIST8_PERIPH(TIMx));assert_param(IS_TIM_...
/*ResettheCCxEBit*/ TIMx->CCER&=(uint16_t)~tmp; /*SetorresettheCCxEBit*/ //TIMx->CCER|=(uint16_t)(TIM_CCx< //修改为: if(TIM_CCx==ENABLE)TIMx->CCER|=tmp; } /** *@briefEnablesordisablestheTIMCaptureCompareChannelxN.
2.3 开启TIM1通道1/2/3的比较输出功能。 TIM_CCxChannelCmd(TIM1,TIM_CHANNEL_1, TIM_CCx_ENABLE); TIM_CCxChannelCmd(TIM1,TIM_CHANNEL_2, TIM_CCx_ENABLE); TIM_CCxChannelCmd(TIM1,TIM_CHANNEL_3, TIM_CCx_ENABLE); 2.4允许相应通道比较事件的DMA请求并开启相应通道的DMA传输功能。
//PWM输出初始化//arr:自动重装值//psc:时钟预分频数void TIM3_PWM_Init(u16 arr,u16 psc){GPIO_InitTypeDef GPIO_InitStructure;TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;TIM_OCInitTypeDef TIM_OCInitStructure;RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);//使能定时器3时钟RCC_APB2PeriphClockCm...