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STM32 TIM1 PWM with Wizard

I have problems with TIM1 PWM settings. My machine is stm32 3 and i use uvision-3. Can somebody please write basic setup for TIM1 CH.1 PWM 50%.(registers). I can not make it work with setting from offical stm32 firmware library.

Problems are always with most simple things.

  • this is working code with %50 duty cycle and 36khz at pa.06 pin simulation is posible via simulator . i have added it...

    #include "stm32f10x_lib.h"

    /* Private typedef -----------------------------------------------------------*/
    /* Private define ------------------------------------------------------------*/
    /* Private macro -------------------------------------------------------------*/
    /* Private variables ---------------------------------------------------------*/
    TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
    TIM_OCInitTypeDef TIM_OCInitStructure;
    u16 CCR1_Val = 500;

    ErrorStatus HSEStartUpStatus;

    /* Private function prototypes -----------------------------------------------*/
    void RCC_Configuration(void);
    void GPIO_Configuration(void);
    void NVIC_Configuration(void);

    /* Private functions ---------------------------------------------------------*/

    /*******************************************************************************
    * Function Name : main
    * Description : Main program
    * Input : None
    * Output : None
    * Return : None
    *******************************************************************************/
    int main(void)
    { #ifdef DEBUG debug();
    #endif

    /* System Clocks Configuration */ RCC_Configuration();

    /* NVIC Configuration */ NVIC_Configuration();

    /* GPIO Configuration */ GPIO_Configuration();

    /* ----------------------------------------------------------------------- TIM3 Configuration: generate 4 PWM signals with 4 different duty cycles: TIM3CLK = 36 MHz, Prescaler = 0x0, TIM3 counter clock = 36 MHz TIM3 ARR Register = 999 => TIM3 Frequency = TIM3 counter clock/(ARR + 1) TIM3 Frequency = 36 KHz. TIM3 Channel1 duty cycle = (TIM3_CCR1/ TIM3_ARR)* 100 = 50%

    ----------------------------------------------------------------------- */

    /* Time base configuration */ TIM_TimeBaseStructure.TIM_Period = 999; TIM_TimeBaseStructure.TIM_Prescaler = 0; TIM_TimeBaseStructure.TIM_ClockDivision = 0; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

    TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);

    /* PWM1 Mode configuration: Channel1 */ TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = CCR1_Val; TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

    TIM_OC1Init(TIM3, &TIM_OCInitStructure);

    TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);

    TIM_ARRPreloadConfig(TIM3, ENABLE);

    /* TIM3 enable counter */ TIM_Cmd(TIM3, ENABLE);

    while (1) {}
    }

    /*******************************************************************************
    * Function Name : RCC_Configuration
    * Description : Configures the different system clocks.
    * Input : None
    * Output : None
    * Return : None
    *******************************************************************************/
    void RCC_Configuration(void)
    { /* RCC system reset(for debug purpose) */ RCC_DeInit();

    /* Enable HSE */ RCC_HSEConfig(RCC_HSE_ON);

    /* Wait till HSE is ready */ HSEStartUpStatus = RCC_WaitForHSEStartUp();

    if (HSEStartUpStatus == SUCCESS) { /* Enable Prefetch Buffer */ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

    /* Flash 2 wait state */ FLASH_SetLatency(FLASH_Latency_2);

    /* HCLK = SYSCLK */ RCC_HCLKConfig(RCC_SYSCLK_Div1);

    /* PCLK2 = HCLK */ RCC_PCLK2Config(RCC_HCLK_Div1);

    /* PCLK1 = HCLK/4 */ RCC_PCLK1Config(RCC_HCLK_Div4);

    /* PLLCLK = 8MHz * 9 = 72 MHz */ RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

    /* Enable PLL */ RCC_PLLCmd(ENABLE);

    /* Wait till PLL is ready */ while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {}

    /* Select PLL as system clock source */ RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

    /* Wait till PLL is used as system clock source */ while (RCC_GetSYSCLKSource() != 0x08) {} }

    /* TIM3 clock enable */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

    /* GPIOA and GPIOB clock enable */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);

    }

    /*******************************************************************************
    * Function Name : GPIO_Configuration
    * Description : Configure the TIM3 Ouput Channels.
    * Input : None
    * Output : None
    * Return : None
    *******************************************************************************/
    void GPIO_Configuration(void)
    { GPIO_InitTypeDef GPIO_InitStructure;

    /*GPIOA Configuration: TIM3 channel 1 and 2 as alternate function push-pull */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 ; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_Init(GPIOA, &GPIO_InitStructure);

    }

    /*******************************************************************************
    * Function Name : NVIC_Configuration
    * Description : Configures Vector Table base location.
    * Input : None
    * Output : None
    * Return : None
    *******************************************************************************/
    void NVIC_Configuration(void)
    { #ifdef VECT_TAB_RAM /* Set the Vector Table base location at 0x20000000 */ NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
    #else /* VECT_TAB_FLASH */ /* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
    #endif
    }

    #ifdef DEBUG
    /*******************************************************************************
    * Function Name : assert_failed
    * Description : Reports the name of the source file and the source line number
    * where the assert_param error has occurred.
    * Input : - file: pointer to the source file name
    * - line: assert_param error line source number
    * Output : None
    * Return : None
    *******************************************************************************/
    void assert_failed(u8* file, u32 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) */

    while (1) {}
    } #endif

    /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/

    all the working code is link seen below...

    rapidshare.com/.../pwmkeil.rar.html