2024年1月15日发(作者：)

------------------------------------------------------------------------------------------------------------------------------------------------------STM32库函数TIM_CCxCmd()和TIM_CCxNCmd()错误

Hefei Fulaide Electronics Science&technology Co., Ltd.

2015年9月7日，在使用PWM时，调试发现STM32 V3.5的库有几个函数有问题。下载了STM32 V3.61的库,也是同样的问题，于是自己修改这个BUG。

STM32库函数TIM_CCxCmd()和TIM_CCxNCmd()错误修改：

/**

* @brief Enables or disables the TIM Capture Compare Channel x.

* @param TIMx: where x can be 1 to 17 except 6 and 7 to select the TIM peripheral.

* @param TIM_Channel: specifies the TIM Channel

* This parameter can be one of the following values:

* @arg TIM_Channel_1: TIM Channel 1

* @arg TIM_Channel_2: TIM Channel 2

* @arg TIM_Channel_3: TIM Channel 3

* @arg TIM_Channel_4: TIM Channel 4

* @param TIM_CCx: specifies the TIM Channel CCxE bit new state.

* This parameter can be: TIM_CCx_Enable or TIM_CCx_Disable.

* @retval None

*/

void TIM_CCxCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCx)

{

uint16_t tmp = 0;

/* Check the parameters */

assert_param(IS_TIM_LIST8_PERIPH(TIMx));

assert_param(IS_TIM_CHANNEL(TIM_Channel));

assert_param(IS_TIM_CCX(TIM_CCx));

tmp = CCER_CCE_Set << TIM_Channel;

/* Reset the CCxE Bit */

TIMx->CCER &= (uint16_t)~ tmp;

/* Set or reset the CCxE Bit */

//TIMx->CCER |= (uint16_t)(TIM_CCx << TIM_Channel); //原来的库函数错误

//修改为:

if(TIM_CCx==ENABLE) TIMx->CCER |= tmp;

}

/**

* @brief Enables or disables the TIM Capture Compare Channel xN.

* @param TIMx: where x can be 1, 8, 15, 16 or 17 to select the TIM peripheral.

* @param TIM_Channel: specifies the TIM Channel

* This parameter can be one of the following values:

地址：安徽省、合肥市、肥东县、店埠镇，合肥市福来德电子科技有限公司

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------------------------------------------------------------------------------------------------------------------------------------------------------STM32库函数TIM_CCxCmd()和TIM_CCxNCmd()错误

Hefei Fulaide Electronics Science&technology Co., Ltd.

* @arg TIM_Channel_1: TIM Channel 1

* @arg TIM_Channel_2: TIM Channel 2

* @arg TIM_Channel_3: TIM Channel 3

* @param TIM_CCxN: specifies the TIM Channel CCxNE bit new state.

* This parameter can be: TIM_CCxN_Enable or TIM_CCxN_Disable.

* @retval None

*/

void TIM_CCxNCmd(TIM_TypeDef* TIMx, uint16_t TIM_Channel, uint16_t TIM_CCxN)

{

uint16_t tmp = 0;

/* Check the parameters */

assert_param(IS_TIM_LIST2_PERIPH(TIMx));

assert_param(IS_TIM_COMPLEMENTARY_CHANNEL(TIM_Channel));

assert_param(IS_TIM_CCXN(TIM_CCxN));

tmp = CCER_CCNE_Set << TIM_Channel;

/* Reset the CCxNE Bit */

TIMx->CCER &= (uint16_t) ~tmp;

/* Set or reset the CCxNE Bit */

//TIMx->CCER |= (uint16_t)(TIM_CCxN << TIM_Channel); //原来的库函数错误

//修改为:

if(TIM_CCxN==ENABLE) TIMx->CCER |= tmp;

}

地址：安徽省、合肥市、肥东县、店埠镇，合肥市福来德电子科技有限公司

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