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- 2013-8-10
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两个函数操作的寄存器一样 只是一个参数的输入范围不一样 (而且前8个参数是一样的)
重点:为什么要弄两个函数??? 清除挂起位跟清除中断标志位是一样的吗?
#define TIM_FLAG_Update ((uint16_t)0x0001)
#define TIM_FLAG_CC1 ((uint16_t)0x0002)
#define TIM_FLAG_CC2 ((uint16_t)0x0004)
#define TIM_FLAG_CC3 ((uint16_t)0x0008)
#define TIM_FLAG_CC4 ((uint16_t)0x0010)
#define TIM_FLAG_COM ((uint16_t)0x0020)
#define TIM_FLAG_Trigger ((uint16_t)0x0040)
#define TIM_FLAG_Break ((uint16_t)0x0080)
#define TIM_FLAG_CC1OF ((uint16_t)0x0200)
#define TIM_FLAG_CC2OF ((uint16_t)0x0400)
#define TIM_FLAG_CC3OF ((uint16_t)0x0800)
#define TIM_FLAG_CC4OF ((uint16_t)0x1000)
void TIM_ClearFlag(TIM_TypeDef* TIMx, uint16_t TIM_FLAG)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_CLEAR_FLAG(TIM_FLAG));
/* Clear the flags */
TIMx->SR = (uint16_t)~TIM_FLAG;
}
#define TIM_IT_Update ((uint16_t)0x0001)
#define TIM_IT_CC1 ((uint16_t)0x0002)
#define TIM_IT_CC2 ((uint16_t)0x0004)
#define TIM_IT_CC3 ((uint16_t)0x0008)
#define TIM_IT_CC4 ((uint16_t)0x0010)
#define TIM_IT_COM ((uint16_t)0x0020)
#define TIM_IT_Trigger ((uint16_t)0x0040)
#define TIM_IT_Break ((uint16_t)0x0080)
void TIM_ClearITPendingBit(TIM_TypeDef* TIMx, uint16_t TIM_IT)
{
/* Check the parameters */
assert_param(IS_TIM_ALL_PERIPH(TIMx));
assert_param(IS_TIM_IT(TIM_IT));
/* Clear the IT pending Bit */
TIMx->SR = (uint16_t)~TIM_IT;
}
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