STM8S_StdPeriph_Examples/TIM1/TIM1_7PWM_Output/main.c

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/**
  ******************************************************************************
  * @file TIM1_7PWM_Output\main.c
  * @brief This file contains the main function for TIM1 7 PWM Output example.
  * @author  MCD Application Team
  * @version  V2.2.0
  * @date     30-September-2014
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */ 

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

/**
  * @addtogroup TIM1_7PWM_Output
  * @{
  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/
#define CCR1_Val  ((uint16_t)2047)
#define CCR2_Val  ((uint16_t)1535)
#define CCR3_Val  ((uint16_t)1023)
#define CCR4_Val  ((uint16_t)511)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/ 
/* Private function prototypes -----------------------------------------------*/
static void TIM1_Config(void);
/* Private functions ---------------------------------------------------------*/
/* Public functions ----------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
void main(void)
{
  /* TIM1 configuration -----------------------------------------*/
  TIM1_Config();
  
  while (1)
  {} 
}

/**
  * @brief  Configure TIM1 to generate 7 PWM signals with 4 different duty cycles
  * @param  None
  * @retval None
  */
static void TIM1_Config(void)
{

   TIM1_DeInit();

  /* Time Base configuration */
  /*
  TIM1_Period = 4095
  TIM1_Prescaler = 0
  TIM1_CounterMode = TIM1_COUNTERMODE_UP
  TIM1_RepetitionCounter = 0
  */

  TIM1_TimeBaseInit(0, TIM1_COUNTERMODE_UP, 4095, 0);

  /* Channel 1, 2,3 and 4 Configuration in PWM mode */
  
  /*
  TIM1_OCMode = TIM1_OCMODE_PWM2
  TIM1_OutputState = TIM1_OUTPUTSTATE_ENABLE
  TIM1_OutputNState = TIM1_OUTPUTNSTATE_ENABLE
  TIM1_Pulse = CCR1_Val
  TIM1_OCPolarity = TIM1_OCPOLARITY_LOW
  TIM1_OCNPolarity = TIM1_OCNPOLARITY_HIGH
  TIM1_OCIdleState = TIM1_OCIDLESTATE_SET
  TIM1_OCNIdleState = TIM1_OCIDLESTATE_RESET
  
  */
  TIM1_OC1Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
               CCR1_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
               TIM1_OCNIDLESTATE_RESET); 

  /*TIM1_Pulse = CCR2_Val*/
  TIM1_OC2Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE, CCR2_Val,
               TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET, 
               TIM1_OCNIDLESTATE_RESET);

  /*TIM1_Pulse = CCR3_Val*/
  TIM1_OC3Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_ENABLE,
               CCR3_Val, TIM1_OCPOLARITY_LOW, TIM1_OCNPOLARITY_HIGH, TIM1_OCIDLESTATE_SET,
               TIM1_OCNIDLESTATE_RESET);

  /*TIM1_Pulse = CCR4_Val*/
  TIM1_OC4Init(TIM1_OCMODE_PWM2, TIM1_OUTPUTSTATE_ENABLE, CCR4_Val, TIM1_OCPOLARITY_LOW,
               TIM1_OCIDLESTATE_SET);

  /* TIM1 counter enable */
  TIM1_Cmd(ENABLE);

  /* TIM1 Main Output Enable */
  TIM1_CtrlPWMOutputs(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****/