我用定时器3设置了4路呼吸灯为什莫只有一路管用是不是哪里还需要设置 ...

超越者 · 发表于 2014-9-15 21:31:30

/** ****************************************************************************** * @file bsp_pwm_output.c * @author STMicroelectronics * @version V1.0 * @date 2013-xx-xx * @brief tim3êä3öËÄÂ·pwm bsp ****************************************************************************** * @attention * * êμÑéÆ½ì¨:ò°»e iSO STM32 ¿a·￠°å * ÂÛì3 :http://www.firebbs.cn * ìÔ±| :http://firestm32.taobao.com * ****************************************************************************** */ #include "bsp_breathing.h"
/* LEDáá¶èμè¼¶ PWM±í */uint8_t indexWave[] = {1,1,2,2,3,4,6,8,10,14,19,25,33,44,59,80, 107,143,191,255,255,191,143,107,80,59,44,33,25,19,14,10,8,6,4,3,2,2,1,1};
/** * @brief ÅäÖÃTIM3¸′óÃêä3&#246

WMê±óÃμ½μÄI/O  * @param  ÎT  * @retval ÎT  */static void TIM3_GPIO_Config(void) {  GPIO_InitTypeDef GPIO_InitStructure;
  /* GPIOB clock enable */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOA, ENABLE); // RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
  /* ÅäÖÃoôÎüμÆóÃμ½μ&#196

B0òy½Å */  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_0 | GPIO_Pin_1;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;       // ¸′óÃíÆíìêä3ö  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIOB, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_6 | GPIO_Pin_7; GPIO_Init(GPIOA, &GPIO_InitStructure);}

/**  * @brief  ÅäÖÃÇ¶ì×Ïòá¿ÖD¶Ï¿ØÖÆÆ÷NVIC  * @param  ÎT  * @retval ÎT  */static void NVIC_Config_PWM(void){  NVIC_InitTypeDef NVIC_InitStructure; /* Configure one bit for preemption priority */  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* ÅäÖÃTIM3_IRQÖD¶ÏÎaÖD¶ÏÔ′ */  NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  NVIC_Init(&NVIC_InitStructure);}
/**  * @brief  ÅäÖÃTIM3êä3öμ&#196

WMDÅoÅμÄÄ￡ê½￡¬èçÖüÆú¡￠¼«DÔ  * @param  ÎT  * @retval ÎT  */
/* * TIMxCLK/CK_PSC --> TIMxCNT --> TIMx_ARR --> ÖD¶Ï & TIMxCNT ÖØDÂ¼Æêy *                   TIMx_CCR(μçÆ½·￠éú±ä»ˉ) * * DÅoÅÖüÆú=(TIMx_ARR +1 ) * ê±ÖóÖüÆú *  */
/* _______ ______    _____    ____    ___       __       _ * |_|    |__|    |___|    |____| |_____| |______|  |_______| |________| */static void TIM3_Mode_Config(void){ TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure; TIM_OCInitTypeDef  TIM_OCInitStructure; /* éèÖÃTIM3CLK ê±ÖóÎa72MHZ */  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //ê1ÄüTIM3ê±Öó
  /* »ù±¾¶¨ê±Æ÷ÅäÖÃ */    TIM_TimeBaseStructure.TIM_Period = 255;       //μ±¶¨ê±Æ÷′ó0¼Æêyμ½255￡¬¼′Îa266′Î￡¬Îaò»¸ö¶¨ê±ÖüÆú  TIM_TimeBaseStructure.TIM_Prescaler = 1999;         //éèÖÃÔ¤·ÖÆμ￡o  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1 ; //éèÖÃê±Öó·ÖÆμÏμêy￡o2»·ÖÆμ(ÕaàïóÃ2»μ½)  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;    //ÏòéÏ¼ÆêyÄ￡ê½  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
  /* PWMÄ￡ê½ÅäÖÃ */ TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;         //ÅäÖÃÎaPWMÄ￡ê½1  TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //ê1Äüêä3ö  TIM_OCInitStructure.TIM_Pulse = 0;       //éèÖÃ3õê&#188

WMÂö3å¿í¶èÎa0    TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;       //μ±¶¨ê±Æ÷¼ÆêyÖμD¡óúCCR1_Valê±ÎaμíμçÆ½
  TIM_OC3Init(TIM3, &TIM_OCInitStructure);      //ê1Äüí¨μà3
  TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable); //ê1ÄüÔ¤×°ÔØ    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //ê1Äüêä3ö    TIM_OCInitStructure.TIM_Pulse = 0; TIM_OC2Init(TIM3, &TIM_OCInitStructure);      //ê1Äüí¨μà3 TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable); //ê1ÄüÔ¤×°ÔØ    TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //ê1Äüêä3ö    TIM_OCInitStructure.TIM_Pulse = 0; TIM_OC1Init(TIM3, &TIM_OCInitStructure);      //ê1Äüí¨μà3 TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable); //ê1ÄüÔ¤×°ÔØ TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //ê1Äüêä3ö    TIM_OCInitStructure.TIM_Pulse = 0; TIM_OC4Init(TIM3, &TIM_OCInitStructure);      //ê1Äüí¨μà3 TIM_OC4PreloadConfig(TIM3, TIM_OCPreload_Enable); //ê1ÄüÔ¤×°ÔØ
  TIM_ARRPreloadConfig(TIM3, ENABLE);      //ê1ÄüTIM3ÖØÔØ¼Ä′æÆ÷ARR
  /* TIM3 enable counter */  TIM_Cmd(TIM3, ENABLE);                //ê1Äü¶¨ê±Æ÷3 TIM_ITConfig(TIM3,TIM_IT_Update, ENABLE); //ê1ÄüupdateÖD¶Ï NVIC_Config_PWM(); //ÅäÖÃÖD¶ÏóÅÏè¼¶ }
/**  * @brief  TIM3 oôÎüμÆ3õê¼»ˉ  *       ÅäÖ&#195

WMÄ￡ê½oíGPIO * @param ÎT * @retval ÎT */void TIM3_Breathing_Init(void){ TIM3_GPIO_Config(); TIM3_Mode_Config(); }
/*********************************************END OF FILE**********************/

中断服务程序
void TIM3_IRQHandler(void)
{
static uint8_t pwm_index = 0; //óÃóúPWM2é±í
static uint8_t period_cnt = 0; //óÃóú¼ÆËãÖüÆúêy

if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET) //TIM_IT_Update
{
period_cnt++;
if(period_cnt >= 10) //èôêä3öμÄÖüÆúêy′óóú10￡¬êä3öÏÂò»ÖÖÂö3å¿íμ&#196

WM2¨
{

TIM3->CCR3 = indexWave[pwm_index]; //¸ù¾YPWM±íDT¸Ä¶¨ê±Æ÷μÄ±è½Ï¼Ä′æÆ÷Öμ
TIM3->CCR1 = indexWave[pwm_index]; //¸ù¾YPWM±íDT¸Ä¶¨ê±Æ÷μÄ±è½Ï¼Ä′æÆ÷Öμ
TIM3->CCR2 = indexWave[pwm_index]; //¸ù¾YPWM±íDT¸Ä¶¨ê±Æ÷μÄ±è½Ï¼Ä′æÆ÷Öμ
TIM3->CCR4 = indexWave[pwm_index]; //¸ù¾YPWM±íDT¸Ä¶¨ê±Æ÷μÄ±è½Ï¼Ä′æÆ÷Öμ
pwm_index++; //±êÖ&#190

WM±íμÄÏÂò»¸öÔaËØ

if( pwm_index >= 40) //è&#244

WMÂö3å±íòÑ¾-êä3öíê3éò»±é￡¬ÖØÖ&#195

WM2é±í±êÖ¾
{
pwm_index=0;
}

period_cnt=0; //ÖØÖÃÖüÆú¼Æêy±êÖ¾
}
TIM_ClearITPendingBit (TIM3, TIM_IT_Update); //±ØDëòaÇå3yÖD¶Ï±êÖ¾Î»
}

刀口 · 发表于 2014-9-16 11:13:16

阁下火星来的?

超越者 · 发表于 2014-9-16 12:53:01

程序我粘上去结果就是这样了我也不知道怎末发着好要不你能办忙看看不我把程序发给你

超越者 · 发表于 2014-9-16 12:53:20

强烈支持，非常感谢哥们

超越者 · 发表于 2014-9-16 13:03:49

刀_口发表于 2014-9-16 11:13
阁下火星来的?

程序我粘上去结果就是这样了我也不知道怎末发着好要不你能办忙看看不我把程序发给你

超越者 · 发表于 2014-9-16 13:04:11

刀_口发表于 2014-9-16 11:13
阁下火星来的?

强烈支持，非常感谢哥们

Marcello · 发表于 2014-11-4 13:09:26

比雷公还雷人哦~

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我用定时器3设置了4路呼吸灯 为什莫只有一路管用 是不是哪里还需要设置 ...

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我用定时器3设置了4路呼吸灯为什莫只有一路管用是不是哪里还需要设置 ...