ʾʹõԴ
TIM1 BRK1    --   PB8
TIM1 CH1     --   PA3
TIM1 CH1N    --   PA4
TIM1 CH2     --   PA2
TIM1 CH2N    --   PA5
TIM1 CH3     --   PA1
TIM1 CH3N    --   PA6


ʾḶ́
1ϵʱӣRCH 48MHz
2TIM1ΪPWMģʽ3ͨ;
       ͨ1CC1PЧCC1NPЧ
                      ͨ1еƽΪЧͨ1еƽΪЧ
       ͨ2CCC2PЧCC2NPЧ
                      ͨ2еƽΪЧͨ2еƽΪЧ
       ͨ3CC3PЧCC3NPЧ
                      ͨ3еƽΪЧͨ3еƽΪЧ
   
3ͨ1εռձΪ50%
       ͨ2εռձΪ37.5%
       ͨ3εռձΪ25%

4ö·źЧʱ·¼ʱPWM

ע⣺
1·źϵĬ״̬Ϊ͵ƽ
2·źЧʱ·Ϊͨ1Ϊ
                              __________________________
                             | 
 BRK1 _______________________| 
                              
                              <->
 CH1  __         ________         _______________________            
        |       |        |       |                 
        |_______|        |_______|                                
          _____            __ <-> <--------------->               
         |     |          |  |     ״̬
 CH1N ___|     |__________|  |___________________________
 
 