我原来使用stm32F103来做步进电机驱动，256细分都做好了，领导忽然说，要把CPU改成HK32F030MF4P6，做的过程占空比无法修改，问题如下：
步进电机细分需要不断改变占空比，比如这个周期内占空比是20，下一个周期的占空比是21，那么，我使用航顺的例程如下：
/*配置TIMER*/
void TIM_Config(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Time Base configuration */
TIM_TimeBaseStructure.TIM_Prescaler = 0;//，CNTCLK=fck_PSC/(PSC[15:0]+1)
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 3200;//配置PWM频率为10KHZ
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
/* Channel 1, 2,3 and 4 Configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1600;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = 800;
TIM_OC2Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = 400;
TIM_OC3Init(TIM1, &TIM_OCInitStructure);
// TIM_OCInitStructure.TIM_Pulse = Channel4Pulse;
// TIM_OC4Init(TIM1, &TIM_OCInitStructure);
/* Automatic Output enable, Break, dead time and lock configuration*/
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 = 1;
TIM_BDTRInitStructure.TIM_Break = TIM_Break_Disable;
TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High;
TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);
TIM_CCPreloadControl(TIM1, ENABLE);
TIM_ITConfig(TIM1, TIM_IT_COM, ENABLE);
/* TIM1 counter enable */
TIM_Cmd(TIM1, ENABLE);
/* TIM1 Main Output Enable */
TIM_CtrlPWMOutputs(TIM1, ENABLE);
/* Enable the TIM1 Trigger and commutation interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM1_UP_TRG_COM_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
产生的占空比是正确的，示波器和逻辑分析仪测试输出波形符合软件设定，
我使用中断，在下一个周期，改变上面代码中的 TIM_OCInitStructure.TIM_Pulse 值，占空比没有变化，不知道，还有没有其他的地方要改变的。
那位大神能够指点一二，谢谢 |
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