stm8s003f/103f的tim2 3路pwm都无输出

只看该作者 · 2016-2-18 11:16

stm8s003f/103f的tim2 3路pwm都无输出，使用的是st 提供的库，option byte也设置了。代码如下:

//---------------------------------------------------------------------------------------------------------------------------------------------------------

/* Includes ------------------------------------------------------------------*/
#include "stm8s.h"

/**
  * @addtogroup TIM2_PWM_DutyCycleConfiguration
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint16_t CCR1_Val = 500;
uint16_t CCR2_Val = 250;
uint16_t CCR3_Val = 125;

/* Private function prototypes -----------------------------------------------*/
static void TIM2_Config(void);
/* Private functions ---------------------------------------------------------*/
/* Public functions ----------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
void main(void)
{
  /* TIM2 configuration -----------------------------------------*/
  TIM2_Config();

  while (1)
  {}
}

/**
  * @brief  Configure TIM2 peripheral in PWM mode
  * @param  None
  * @retval None
  */
static void TIM2_Config(void)
{
  /* Time base configuration */
  TIM2_TimeBaseInit(TIM2_PRESCALER_1, 999);

  /* PWM1 Mode configuration: Channel1 */
  TIM2_OC1Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,CCR1_Val, TIM2_OCPOLARITY_HIGH);
  TIM2_OC1PreloadConfig(ENABLE);

  /* PWM1 Mode configuration: Channel2 */
  TIM2_OC2Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,CCR2_Val, TIM2_OCPOLARITY_HIGH);
  TIM2_OC2PreloadConfig(ENABLE);

  /* PWM1 Mode configuration: Channel3 */
  TIM2_OC3Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,CCR3_Val, TIM2_OCPOLARITY_HIGH);
  TIM2_OC3PreloadConfig(ENABLE);

  TIM2_ARRPreloadConfig(ENABLE);

  /* TIM2 enable counter */
  TIM2_Cmd(ENABLE);
}

#ifdef USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  * where the assert_param error has occurred.
  * @param file: pointer to the source file name
  * @param line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* User can add his own implementation to report the file name and line number,
   ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

只看该作者 · 2016-2-18 16:55

先测试一下你的timer有没有正常运行

只看该作者 · 2016-2-18 22:46

确认下已经定义了 STM8S003或STM8S103

typedef struct TIM2_struct
{
  __IO uint8_t CR1; /*!< control register 1 */
#if defined(STM8S103) || defined(STM8S003)
uint8_t RESERVED1; /*!< Reserved register */
uint8_t RESERVED2; /*!< Reserved register */
#endif
  __IO uint8_t IER; /*!< interrupt enable register */
  __IO uint8_t SR1; /*!< status register 1 */
  __IO uint8_t SR2; /*!< status register 2 */

只看该作者 · 2016-2-19 13:55

To xmshao ：从st下载的库和例程，并在IAR中定义了芯片类型，编译都ok，timer1输出没问题。就timer2无输出，一路也没。
To 仙女山 : 测试了, 使用timer2中断例程有动作，代码未变更。

只看该作者 · 2016-2-19 14:33

既然这样
可能管脚有问题，还有大家为什么总是不说完整芯片型号呢
是否有管脚需要额外OPTION配置的，若果是20脚的003/103,不做OPTION AFR配置就出不来。

只看该作者 · 2019-7-13 08:56

请问楼主这个问题解决了吗，我也遇到了同样的问题，求楼主指点