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TIM1多路PWM输出选项字节(Option Byte)操作和IO复用

本文摘录于：https://blog.csdn.net/freeape/article/details/47008033只是做学习备份之用，绝无抄袭之意，有疑惑请联系本人！
代码上要使用TIME1输出3路PWM,代码如下:

void timer1_init(void)
{TIM1_DeInit();  TIM1_TimeBaseInit(0x0000, TIM1_COUNTERMODE_UP, 1600, 0x00);//16000000/160=10000=10KTIM1_OC1Init(TIM1_OCMODE_PWM1, TIM1_OUTPUTSTATE_ENABLE,TIM1_OUTPUTNSTATE_DISABLE,400, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_HIGH,TIM1_OCIDLESTATE_SET, TIM1_OCNIDLESTATE_SET);TIM1_OC2Init(TIM1_OCMODE_PWM1, TIM1_OUTPUTSTATE_ENABLE,TIM1_OUTPUTNSTATE_DISABLE,800, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_HIGH,TIM1_OCIDLESTATE_SET, TIM1_OCNIDLESTATE_SET);TIM1_OC3Init(TIM1_OCMODE_PWM1, TIM1_OUTPUTSTATE_ENABLE,TIM1_OUTPUTNSTATE_DISABLE,1200, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_HIGH,TIM1_OCIDLESTATE_SET, TIM1_OCNIDLESTATE_SET);TIM1_Cmd(ENABLE);TIM1_CtrlPWMOutputs(ENABLE);
}

但是不知道为什么怎么通道1和通道2都没有输出,只有通道3有输出:

经过从从百度多方查看终于看到这篇文章:https://blog.csdn.net/freeape/article/details/47008033

这你要配置AFR0,经过了解要用stvp进行Option Byte的修改:https://download.csdn.net/download/rui22/12885187

操作成功过后可以读回配置看看是否成功:


经过配置后通道1和通道2终于有PWM输出了: