STM8S103F的TIM2无法进入中断

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一、环境

芯片：STM8S103F3PIDE环境：IAR for STM8

IAR自带的STM库中TIM2的库错误，寄存器和datasheet不一致，需要修改。

二、分析

stms.h中定义的TIM2寄存器如下图：

STM官网资料STM8S103F3P中定义的TIM2寄存器如下图：

三、解决

在库中把Reserve寄存器加上即可

typedef struct TIM2_struct

{

__IO uint8_t CR1; /*!< control register 1 */

__IO uint8_t RESERVE1;

__IO uint8_t RESERVE2;

__IO uint8_t IER; /*!< interrupt enable register */

__IO uint8_t SR1; /*!< status register 1 */

__IO uint8_t SR2; /*!< status register 2 */

__IO uint8_t EGR; /*!< event generation register */

__IO uint8_t CCMR1; /*!< CC mode register 1 */

__IO uint8_t CCMR2; /*!< CC mode register 2 */

__IO uint8_t CCMR3; /*!< CC mode register 3 */

__IO uint8_t CCER1; /*!< CC enable register 1 */

__IO uint8_t CCER2; /*!< CC enable register 2 */

__IO uint8_t CNTRH; /*!< counter high */

__IO uint8_t CNTRL; /*!< counter low */

__IO uint8_t PSCR; /*!< prescaler register */

__IO uint8_t ARRH; /*!< auto-reload register high */

__IO uint8_t ARRL; /*!< auto-reload register low */

__IO uint8_t CCR1H; /*!< capture/compare register 1 high */

__IO uint8_t CCR1L; /*!< capture/compare register 1 low */

__IO uint8_t CCR2H; /*!< capture/compare register 2 high */

__IO uint8_t CCR2L; /*!< capture/compare register 2 low */

__IO uint8_t CCR3H; /*!< capture/compare register 3 high */

__IO uint8_t CCR3L; /*!< capture/compare register 3 low */

}TIM2_TypeDef

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