stm8s105c6 Pc1引脚冲突

阿莫西林提问时间：2015-11-19 22:42 /

问答
是否解决:

小弟在使用tim1输出4路pwm的时候。出现了几个问题：1、唯独ch1没有输出；2、ch2、3、4，频率本该是1k，结果出来125hz。pwm代码如下：TIM1_DeInit();
CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER1,ENABLE);
TIM1_TimeBaseInit(15,TIM1_COUNTERMODE_UP,1000,0);

TIM1_OC1Init(TIM1_OCMODE_PWM2,\
               TIM1_OUTPUTSTATE_ENABLE,\
               TIM1_OUTPUTNSTATE_DISABLE,\
               Default_Pulse,\
               TIM1_OCPOLARITY_LOW,\
               TIM1_OCPOLARITY_HIGH,\
               TIM1_OCIDLESTATE_SET,\
               TIM1_OCIDLESTATE_RESET);
TIM1_OC1PreloadConfig(DISABLE);

TIM1_OC2Init(TIM1_OCMODE_PWM2,\
               TIM1_OUTPUTSTATE_ENABLE,\
               TIM1_OUTPUTNSTATE_DISABLE,\
               Default_Pulse,\
               TIM1_OCPOLARITY_LOW,\
               TIM1_OCPOLARITY_HIGH,\
               TIM1_OCIDLESTATE_SET,\
               TIM1_OCIDLESTATE_RESET);
TIM1_OC2PreloadConfig(DISABLE);

TIM1_OC3Init(TIM1_OCMODE_PWM2,\
               TIM1_OUTPUTSTATE_ENABLE,\
               TIM1_OUTPUTNSTATE_DISABLE,\
               Default_Pulse,\
               TIM1_OCPOLARITY_LOW,\
               TIM1_OCPOLARITY_HIGH,\
               TIM1_OCIDLESTATE_SET,\
               TIM1_OCIDLESTATE_RESET);
TIM1_OC3PreloadConfig(DISABLE);

TIM1_OC4Init(TIM1_OCMODE_PWM2,\
               TIM1_OUTPUTSTATE_ENABLE,\
               Default_Pulse,\
               TIM1_OCPOLARITY_LOW,\
               TIM1_OCIDLESTATE_SET);
TIM1_OC4PreloadConfig(DISABLE);

TIM1_CtrlPWMOutputs(ENABLE);
   TIM1_Cmd(ENABLE);
现猜测可能是使用了uart2，导致PC1/TIM1_CH1/UART2_CK这个引脚出了什么问题，所以才没有输出。如果是这个原因的话，我该怎么设置，在哪设置改掉啊。（好像也不是改选项字节，因为在afr里面都没看到pc1）

各位大哥，给点建议吧，谢啦