TIMx，通道x，無對映，部分對映，完全對映

TIM1_CH1, PA8,    PE9,
TIM1_CH2, PA9,    PE11
TIM1_CH3, PA10,    PE13
TIM1_CH4, PA11,    PE14


TIM2_CH1, PA15 
TIM2_CH2, PA1,    PB3
TIM2_CH3, PA2,    PB10
TIM2_CH4, PA3,    PB11


TIM3_CH1, PA6,  PB4, PC6
TIM3_CH2, PA7,    PB5, PC7
TIM3_CH3, PB0,    PC8
TIM3_CH4, PB1,    PC9


TIM4_CH1, PB6,  PD12
TIM4_CH2, PB7,    PD13
TIM4_CH3, PB8,    PD14
TIM4_CH4, PB9,    PD15


TIM5_CH1, PA0,  PH10
TIM5_CH2, PA1,    PH11
TIM5_CH3, PA2,    PH12
TIM5_CH4, PA3,    PI10


TIM8_CH1, PC6,  PI5
TIM8_CH2, PC7,    PI6
TIM8_CH3, PC8,    PI7
TIM8_CH4, PC9,    PI2


TIM9_CH1, PA2,  PE5
TIM9_CH2, PA3,    PE6


TIM10_CH1, PB8,  PF6


TIM11_CH1, PB9,  PF7


TIM12_CH1, PB14,  PH6
TIM12_CH2, PB15,  PH9


TIM13_CH1, PA6,  PF8
TIM14_CH1, PA7,  PF9

APB1 定時器有 TIM2, TIM3 ,TIM4, TIM5, TIM6, TIM7, TIM12, TIM13, TIM14 
APB2 定時器有 TIM1, TIM8 ,TIM9, TIM10, TIM11



APB1 定時器的輸入時鐘 TIMxCLK = SystemCoreClock / 2; 84M
APB2 定時器的輸入時鐘 TIMxCLK = SystemCoreClock; 168M