你的浏览器版本过低,可能导致网站不能正常访问!
为了你能正常使用网站功能,请使用这些浏览器。

STM32F051 TIM17产生两路带死区的互补pwm

[复制链接]
kinto 提问时间:2019-8-9 20:24 /
我想用STM32F051 TIM17产生两路带死区的互补pwm,互补pwm出来了,但死区没有,不知道哪位大神有经验?

        TIM_TimeBaseStructure.TIM_Period = 4095;
        TIM_TimeBaseStructure.TIM_Prescaler = 11485;//11719;
        TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
        TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
        TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
        TIM_TimeBaseInit(TIM17, &TIM_TimeBaseStructure);
        TIM_ARRPreloadConfig(TIM17, ENABLE);

        TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
        TIM_OCInitStructure.TIM_Pulse = 1000;
        TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
        TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
       TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
       TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
       TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
       TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Set;

        TIM_OC1Init(TIM17, &TIM_OCInitStructure);
        TIM_OC1PreloadConfig(TIM17, TIM_OCPreload_Enable);
       
        TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;
        TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
        TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_OFF;
        TIM_BDTRInitStructure.TIM_DeadTime = 500;
        TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
       TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_Low;
       TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
       TIM_BDTRConfig(TIM17, &TIM_BDTRInitStructure);
       
        TIM_ARRPreloadConfig(TIM17, ENABLE);
          
        TIM_Cmd(TIM17, ENABLE);
        TIM_CCPreloadControl(TIM17,ENABLE);
        TIM_CtrlPWMOutputs(TIM17, ENABLE);

收藏 评论1 发布时间:2019-8-9 20:24

举报

1个回答
butterflyspring 回答时间:2019-9-12 15:59:06
楼主你好,我在官方例程基础上跑了一下,发现死区时间的定义不是直接定义的。你再试试看
TIM_BDTRInitStructure.TIM_DeadTime = 500; 这个值太大了。
我用的设置是TIM_BDTRInitStructure.TIM_DeadTime = 11
STM32F0 dead time.PNG
关于意法半导体
我们是谁
投资者关系
意法半导体可持续发展举措
创新和工艺
招聘信息
联系我们
联系ST分支机构
寻找销售人员和分销渠道
社区
媒体中心
活动与培训
隐私策略
隐私策略
Cookies管理
行使您的权利
关注我们
st-img 微信公众号
st-img 手机版