STM32F4驱动LED灯的问题

只看该作者 · 2014-10-15 14:35

我用STM32F407驱动LED，发现只有PD口，PF口可以正常工作，其他不行。
大侠给看看。谢谢！
贴出部分程序
#define RCC_AHB1Periph_GPIOA          ((uint32_t)0x00000001)
#define RCC_AHB1Periph_GPIOB          ((uint32_t)0x00000002)
#define RCC_AHB1Periph_GPIOC          ((uint32_t)0x00000004)
#define RCC_AHB1Periph_GPIOD          ((uint32_t)0x00000008)
#define RCC_AHB1Periph_GPIOE          ((uint32_t)0x00000010)
#define RCC_AHB1Periph_GPIOF          ((uint32_t)0x00000020)
#define RCC_AHB1Periph_GPIOG          ((uint32_t)0x00000040)

#define PERIPH_BASE          ((uint32_t)0x40000000)
#define APB2PERIPH_BASE    (PERIPH_BASE + 0x10000)
#define AHB1PERIPH_BASE    (PERIPH_BASE + 0x20000)
#define GPIOA_BASE          (AHB1PERIPH_BASE+ 0x0000)
#define GPIOA             ((GPIO_TypeDef *) GPIOA_BASE)
#define GPIOB_BASE          (AHB1PERIPH_BASE+ 0x0400)
#define GPIOB             ((GPIO_TypeDef *) GPIOB_BASE)
#define GPIOC_BASE          (AHB1PERIPH_BASE+ 0x0800)
#define GPIOC             ((GPIO_TypeDef *) GPIOC_BASE)
#define GPIOD_BASE          (AHB1PERIPH_BASE+ 0x0C00)
#define GPIOD             ((GPIO_TypeDef *) GPIOD_BASE)
#define GPIOE_BASE          (AHB1PERIPH_BASE+ 0x1000)
#define GPIOE             ((GPIO_TypeDef *) GPIOE_BASE)
#define GPIOF_BASE          (AHB1PERIPH_BASE+ 0x1400)
#define GPIOF             ((GPIO_TypeDef *) GPIOF_BASE)
#define GPIOG_BASE          (AHB1PERIPH_BASE+ 0x1800)
#define GPIOG             ((GPIO_TypeDef *) GPIOG_BASE)

只看该作者 · 2014-10-15 14:36

/*使能AHB1总线的时钟，对GPIO的端口F时钟使能*/
       RCC->AHB1ENR |= RCC_AHB1Periph_GPIOF;
   RCC->AHB1ENR |= RCC_AHB1Periph_GPIOD;
      RCC->AHB1ENR |= RCC_AHB1Periph_GPIOE;
   RCC->AHB1ENR |= RCC_AHB1Periph_GPIOG;
   RCC->AHB1ENR |= RCC_AHB1Periph_GPIOA;
   RCC->AHB1ENR |= RCC_AHB1Periph_GPIOB;
   RCC->AHB1ENR |= RCC_AHB1Periph_GPIOC;

/*配置输入输出模式和输入输出的速度*/
   GPIOA->MODER &= 0x0FC000F0; //01表示通用输入输出
   GPIOA->MODER |= 0x50154505;

   GPIOA->OTYPER &= 0x0000000;    //0表示上拉输出
   GPIOA->OTYPER |= 0x0000000;

   GPIOA->OSPEEDR &= 0x00000000;    // 25MHZ
       GPIOA->OSPEEDR |= 0x50154505;

   GPIOA->PUPDR &= 0x0FC000F0; //00没上啦，没下拉
   GPIOA->PUPDR |= 0x0000000;

   GPIOB->MODER &= 0x0FC000F0; //01表示通用输入输出
   GPIOB->MODER |= 0x50154505;

   GPIOB->OTYPER &= 0x0000000;    //0表示上拉输出
   GPIOB->OTYPER |= 0x0000000;

   GPIOB->OSPEEDR &= 0x00000000;    // 25MHZ
       GPIOB->OSPEEDR |= 0x50154505;

   GPIOB->PUPDR &= 0x0FC000F0; //00没上啦，没下拉
   GPIOB->PUPDR |= 0x0000000;

   GPIOC->MODER &= 0x0FC000F0; //01表示通用输入输出
   GPIOC->MODER |= 0x50154505;

   GPIOC->OTYPER &= 0x0000000;    //0表示上拉输出
   GPIOC->OTYPER |= 0x0000000;

   GPIOC->OSPEEDR &= 0x00000000;    // 25MHZ
       GPIOC->OSPEEDR |= 0x50154505;

   GPIOC->PUPDR &= 0x0FC000F0; //00没上啦，没下拉
   GPIOC->PUPDR |= 0x0000000;

   GPIOD->MODER &= 0x0FC000F0; //01表示通用输入输出
   GPIOD->MODER |= 0x50154505;

   GPIOD->OTYPER &= 0x0000000;    //0表示上拉输出
   GPIOD->OTYPER |= 0x0000000;

   GPIOD->OSPEEDR &= 0x00000000;    // 25MHZ
       GPIOD->OSPEEDR |= 0x50154505;

   GPIOD->PUPDR &= 0x0FC000F0; //00没上啦，没下拉
   GPIOD->PUPDR |= 0x0000000;

   GPIOE->MODER &= 0x0FC000F0; //01表示通用输入输出
   GPIOE->MODER |= 0x50154505;

   GPIOE->OTYPER &= 0x0000000;    //0表示上拉输出
   GPIOE->OTYPER |= 0x0000000;

   GPIOE->OSPEEDR &= 0x00000000;    // 25MHZ
       GPIOE->OSPEEDR |= 0x50154505;

   GPIOE->PUPDR &= 0x0FC000F0; //00没上啦，没下拉
   GPIOE->PUPDR |= 0x0000000;

   GPIOF->MODER &= 0xFFC00FF0; //01表示通用输入输出
   GPIOF->MODER |= 0x00154001;

   GPIOF->OTYPER &= 0xFFFFB000;    //0表示上拉输出
   GPIOF->OTYPER |= 0x0000000;

   GPIOF->OSPEEDR &= 0xFFC00F0;    // 25MHZ
       GPIOF->OSPEEDR |= 0x00154001;

   GPIOF->PUPDR &= 0xFFC00FF0; //00没上啦，没下拉
   GPIOF->PUPDR |= 0x0000000;

   GPIOG->MODER &= 0xF0C00FF0; //01表示通用输入输出
   GPIOG->MODER |= 0x05154001;

   GPIOG->OTYPER &= 0xF0FF0000;    //0表示上拉输出
   GPIOG->OTYPER |= 0x0000000;

   GPIOG->OSPEEDR &= 0xF0C00F0;    // 25MHZ
       GPIOG->OSPEEDR |= 0x05154001;

   GPIOG->PUPDR &= 0xF0C00FF0; //00没上啦，没下拉
   GPIOG->PUPDR |= 0x0000000;

只看该作者 · 2014-10-15 14:36

/* Infinite loop 主循环 */
while (1)
{
      GPIOA->BSRRL=GPIO_Pin_0;    /*熄灭LED灯*/
GPIOB->BSRRL=GPIO_Pin_0;    /*熄灭LED灯*/
GPIOC->BSRRL=GPIO_Pin_0;    /*熄灭LED灯*/
GPIOD->BSRRL=GPIO_Pin_0;    /*熄灭LED灯*/
GPIOE->BSRRL=GPIO_Pin_0;    /*熄灭LED灯*/
GPIOF->BSRRL=GPIO_Pin_9;    /*熄灭LED灯*/
GPIOF->BSRRL=GPIO_Pin_10;    /*熄灭LED灯*/
          Delay(0x2FFFFFF);
GPIOA->BSRRH=GPIO_Pin_0;    /*点亮LED灯*/
GPIOB->BSRRH=GPIO_Pin_0;    /*点亮LED灯*/
GPIOC->BSRRH=GPIO_Pin_0;    /*点亮LED灯*/
GPIOD->BSRRH=GPIO_Pin_0;    /*点亮LED灯*/
GPIOE->BSRRH=GPIO_Pin_0;    /*点亮LED灯*/
GPIOF->BSRRH=GPIO_Pin_9;    /*点亮LED灯*/
          GPIOF->BSRRH=GPIO_Pin_10;    /*点亮LED灯*/
          Delay(0x2FFFFFF);
}

只看该作者 · 2014-10-15 17:42

用库的例程解决了。

3万 · 2014-10-15 20:40

#define RUN_LED_ON GPIOA->BSRRL = GPIO_Pin_15
#define RUN_LED_OFF GPIOA->BSRRH = GPIO_Pin_15
我一般这样定义的；

STM32F4驱动LED灯的问题

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