st2.0电机库时钟配置触发输出问题

drf63329272

我现在在改写st2.0电机库，为什么配置时钟的触发输出库里是TIM_SelectOutputTrigger(TIMER_NUM, TIM_TRGOSource_Update);
更新触发
按手册上写应该是采用CC4通道比较匹配触发TIM_SelectOutputTrigger(TIMER_NUM, TIM_TRGOSource_OC4Ref);才对的吧
但是我改成TIM_TRGOSource_OC4Ref的时候尽然触发不了
不改的话，ADC触发无论是配置为ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_TRGO);
还是ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_CC4);
都是在更新事件的时候才触发的，我通过量PWM波形看到上桥PWM都是在高电平中点，不是在低电平中点，请教各位有谁知道？

drf63329272

TIM配置代码如下：
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;
TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
       
//#if DRIVE_AUTO_OUTPUT_LOW_SIDE <= 0
//    TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
//#endif       

    TIM1_RCC_Configuration();
    TIM1_GPIO_Configuration();
       
    /* Time Base configuration */
                TIM_DeInit(TIMER_NUM);       
                TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
    TIM_TimeBaseStructure.TIM_Prescaler = PWM_PRSC;
    TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_CenterAligned1;
    TIM_TimeBaseStructure.TIM_Period = PWM_PERIOD-1;
    TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV2;
    TIM_TimeBaseStructure.TIM_RepetitionCounter = REP_RATE;
    TIM_TimeBaseInit(TIMER_NUM, &TIM_TimeBaseStructure);
               
    /* Channel 1 Configuration in PWM mode */
                TIM_OCStructInit(&TIM_OCInitStructure);
    TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
               
#if PMOS_ON_HIGH_SIDE > 0
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
                TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
#else
    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
                TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;
#endif
   

#if DRIVE_AUTO_OUTPUT_LOW_SIDE <= 0
    TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
    TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
    TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;
#else
    TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;
    TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
    TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Reset;               
#endif       

                TIM_OCInitStructure.TIM_Pulse = 0;
    TIM_OC1Init(TIMER_NUM, &TIM_OCInitStructure);
                TIM_OCInitStructure.TIM_Pulse = 0;
    TIM_OC2Init(TIMER_NUM, &TIM_OCInitStructure);
                TIM_OCInitStructure.TIM_Pulse = 0;
    TIM_OC3Init(TIMER_NUM, &TIM_OCInitStructure);
               
                /* Channel 4 Configuration in OC */
                TIM_OCStructInit(&TIM_OCInitStructure);
                TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;   //oí1.2.3í¨μàμ&#196;PWM1&#196;￡ê&#189;&#213;yo&#195;&#207;à·′￡&#172;2&#206;&#191;&#188;
                                                                                                                                //        TIM1_CCMR1&#188;&#196;′&#230;&#198;÷μ&#196;4-6&#206;&#187;&#161;￡       
                TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;     ////CCR4 &#213;a&#184;&#246;±&#216;D&#235;ê&#228;3&#246;ê1&#196;üoó2&#197;&#196;ü′￥·￠ADC1μ&#196;×￠è&#235;í¨μà2é&#209;ù
                TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Disable;   //  TIM_OutputState_Enable            
                TIM_OCInitStructure.TIM_Pulse = PWM_PERIOD -1;//2*PWM_PERIOD -20 - 30; //20&#206;aμ&#231;á÷2é&#209;ùê±&#188;&#228; 30&#206;a±￡&#214;¤2é&#209;ùê±&#191;ì&#212;útim &#184;üD&#194;ê&#194;&#188;t2úéú&#214;&#174;&#199;°
               
                TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
                TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_Low;         
                TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
                TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;      
               
                TIM_OC4Init(TIMER_NUM, &TIM_OCInitStructure);
               
                /* Enables the TIM1 Preload on CC1 Register */
                TIM_OC1PreloadConfig(TIMER_NUM, TIM_OCPreload_Enable);  //&#198;&#244;ó&#195;±è&#189;&#207;&#198;÷μ&#196;ó°×ó&#188;&#196;′&#230;&#198;÷￡¨&#214;±μ&#189;2úéú&#184;üD&#194;ê&#194;&#188;t2&#197;&#184;ü&#184;&#196;éè&#214;&#195;￡&#169;
                /* Enables the TIM1 Preload on CC2 Register */
                TIM_OC2PreloadConfig(TIMER_NUM, TIM_OCPreload_Enable);
                /* Enables the TIM1 Preload on CC3 Register */
                TIM_OC3PreloadConfig(TIMER_NUM, TIM_OCPreload_Enable);
                /* Enables the TIM1 Preload on CC4 Register */
                TIM_OC4PreloadConfig(TIMER_NUM, TIM_OCPreload_Enable);
               
//#if DRIVE_AUTO_OUTPUT_LOW_SIDE <= 0
    /* Automatic Output enable, Break, dead time and lock configuration*/
    TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;  //TIM_OSSRState_Enable  TIM_OSSIState_Disable
    TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSRState_Enable;
    TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1;
    TIM_BDTRInitStructure.TIM_DeadTime  = TIMER_DeadTime_Value;//64;
    TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
    TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High;
    TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Disable;
    TIM_BDTRConfig(TIMER_NUM, &TIM_BDTRInitStructure);
//#endif       

                TIM_SelectOutputTrigger(TIMER_NUM, TIM_TRGOSource_Update); //&#209;&#161;&#212;&#241;TIM1′￥·￠&#198;÷ê&#228;3&#246;&#196;￡ê&#189;
//                TIM_SelectOutputTrigger(TIMER_NUM, TIM_TRGOSource_OC4Ref); //&#209;&#161;&#212;&#241;TIM1′￥·￠&#198;÷ê&#228;3&#246;&#196;￡ê&#189;
               
//                TIM_ClearITPendingBit(TIMER_NUM, TIM_IT_Break);//&#199;&#229;3t&#189;&#244;&#188;±é23μ&#214;D&#182;&#207;±ê&#214;&#190;&#206;&#187;
//                TIM_ITConfig(TIMER_NUM, TIM_IT_Break,DISABLE); //ENABLE ê1&#196;ü&#189;&#244;&#188;±é23μ&#214;D&#182;&#207;  &#199;°&#195;&#230;DèòaTIM1_BDTRInitStructure.TIM_Break = TIM_Break_Enable;

//                // Clear Update Flag
//                TIM_ClearFlag(TIMER_NUM, TIM_FLAG_Update);
////               
//                TIM_ITConfig(TIMER_NUM, TIM_IT_Update, ENABLE); //&#212;úê&#199;·&#241;Dèòa&#182;áè&#161;ADC&#214;D&#190;&#246;&#182;¨1&#216;±&#213;&#187;ò&#191;a&#198;&#244;&#184;üD&#194;ê&#194;&#188;t&#214;D&#182;&#207;
////               
//                TIM_ITConfig(TIMER_NUM, TIM_IT_CC4,ENABLE);
               
                Motor_DRIVE_ON();
               
    /* TIMER_NUM counter enable */
    TIM_Cmd(TIMER_NUM, ENABLE);

    /* Main Output Enable */
    TIM_CtrlPWMOutputs(TIMER_NUM, ENABLE);
               
                // Resynch to have the Update evend during Undeflow
                TIM_GenerateEvent(TIMER_NUM, TIM_EventSource_Update);       

drf63329272

自己顶，哪位看看

drf63329272

问题已解决，TIM_TimeBaseStructure.TIM_Period = PWM_PERIOD-1;和CCR4   TIM_OCInitStructure.TIM_Pulse = PWM_PERIOD -1;不能相等
，需要改为TIM_OCInitStructure.TIM_Pulse = PWM_PERIOD -2;