STM32G070RBT6基于Arduino框架GPIO输入输出模式

Posted 2022-11-14 perseverance52

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STM32G070RBT6基于Arduino框架GPIO输入输出模式

📌相关篇《【硬件开源电路】STM32G070RBT6开发板》
🎈《STM32G070RBT6基于Arduino框架下点灯程序》

⛳STM32G070RBT6 GPIO输入输出

在LQFP-64封装当中，可用的IO引脚数量59个，可以说相当多。在Arduino框架下开发，GPIO输入输出引脚模式：INPUT（输入模式/浮空输入= INPUT_FLOATING ）, INPUT_PULLUP（输入上拉模式）, INPUT_PULLDOWN（输入下拉模式）or OUTPUT（输出模式）,INPUT_ANALOG(模拟输入)，还有就是OUTPUT_OPEN_DRAIN（开漏输出）。

📋相关输入输出定义在文件：C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware\\stm32\\2.3.0\\cores\\arduino\\wiring_constants.h头文件当中。

📖GPIO相关函数解析

🔖具体的相关函数定义在：C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware\\stm32\\2.3.0\\cores\\arduino\\wiring_digital.h 文件当中。

/**
 * \\brief Configures the specified pin to behave either as an input or an output.
 * 设置GPIO引脚输入输出模式
 * \\param dwPin The number of the pin whose mode you wish to set
 * \\param dwMode Either INPUT, INPUT_PULLUP, INPUT_PULLDOWN or OUTPUT
 */
extern void pinMode(uint32_t dwPin, uint32_t dwMode) ;

/**
 * \\brief Write a HIGH or a LOW value to a digital pin.
 * 写入对应的电平状态到指定GPIO引脚上
 * If the pin has been configured as an OUTPUT with pinMode(), its voltage will be set to the
 * corresponding value: 3.3V for HIGH, 0V (ground) for LOW.
 *
 * \\param dwPin the pin number
 * \\param dwVal HIGH or LOW
 */
extern void digitalWrite(uint32_t dwPin, uint32_t dwVal) ;

/**
 * \\brief Reads the value from a specified digital pin, either HIGH or LOW.
 * 读取指定GPIO引脚状态
 * \\param ulPin The number of the digital pin you want to read (int)
 *
 * \\return HIGH or LOW
 */
extern int digitalRead(uint32_t ulPin) ;

/**
 * \\brief Toggle the value from a specified digital pin.
 *	GPIO引脚状态翻转
 * \\param ulPin The number of the digital pin you want to toggle (int)
 */
extern void digitalToggle(uint32_t ulPin) ;

🌿通过上面的相关函数，我们可以了解到，和AVR单片机功能函数上基本一致，但是新增了一个状态翻转函数。以前的话需要digitalWrite(uint32_t dwPin, !digitalRead(uint32_t dwPin)) ;这样写才能实现。

📗GPIO高速模式

🔖具体的相关函数定义在：C:\\Users\\Administrator\\AppData\\Local\\Arduino15\\packages\\STMicroelectronics\\hardware\\stm32\\2.3.0\\cores\\arduino\\stm32\\digital_io.h 文件当中。

📢在使用时，注意不要和普通模式的函数的形参混淆，否则编译会报错。

/**
  * @brief  This function set a value to an IO
  * @param  port : one of the gpio port
  * @param  pin : one of the gpio pin
  * @param  val : 0 to set to low, any other value to set to high
  * @retval None
  */
static inline void digital_io_write(GPIO_TypeDef *port, uint32_t pin, uint32_t val)

  if (val) 
    LL_GPIO_SetOutputPin(port, pin);
   else 
    LL_GPIO_ResetOutputPin(port, pin);
  


/**
  * @brief  This function read the value of an IO
  * @param  port : one of the gpio port
  * @param  pin : one of the gpio pin
  * @retval The pin state (LOW or HIGH)
  */
static inline uint32_t digital_io_read(GPIO_TypeDef *port, uint32_t pin)

  return LL_GPIO_IsInputPinSet(port, pin);


/**
  * @brief  This function toggle value of an IO
  * @param  port : one of the gpio port
  * @param  pin : one of the gpio pin
  * @retval None
  */
static inline void digital_io_toggle(GPIO_TypeDef *port, uint32_t pin)

  LL_GPIO_TogglePin(port, pin);


/**
  * @brief  This function set a value to an IO
  * @param  pn : Pin name
  * @param  val : 0 to set to low, any other value to set to high
  * @retval None
  */
static inline void digitalWriteFast(PinName pn, uint32_t ulVal)

  digital_io_write(get_GPIO_Port(STM_PORT(pn)), STM_LL_GPIO_PIN(pn), ulVal);


/**
  * @brief  This function read the value of an IO
  * @param  pn : Pin name
  * @retval The pin state (LOW or HIGH)
  */
static inline int digitalReadFast(PinName pn)

  uint8_t level = 0;
  level = digital_io_read(get_GPIO_Port(STM_PORT(pn)), STM_LL_GPIO_PIN(pn));
  return (level) ? HIGH : LOW;


/**
  * @brief  This function toggle value of an IO
  * @param  port : one of the gpio port
  * @param  pin : one of the gpio pin
  * @retval None
  */
static inline void digitalToggleFast(PinName pn)

  digital_io_toggle(get_GPIO_Port(STM_PORT(pn)), STM_LL_GPIO_PIN(pn));

高速模式中，内联函数形参-引脚变量为枚举类型，定义在同目录下的PinNames.h头文件当中。

typedef enum 
  // Not connected
  NC = 0xFFFFFFFF,

  // Pin name definition
  PA_0  = (PortA << 4) + 0x00,
  PA_1  = (PortA << 4) + 0x01,
  PA_2  = (PortA << 4) + 0x02,
  PA_3  = (PortA << 4) + 0x03,
  PA_4  = (PortA << 4) + 0x04,
  PA_5  = (PortA << 4) + 0x05,
  PA_6  = (PortA << 4) + 0x06,
  PA_7  = (PortA << 4) + 0x07,
  PA_8  = (PortA << 4) + 0x08,
  PA_9  = (PortA << 4) + 0x09,
  PA_10 = (PortA << 4) + 0x0A,
  PA_11 = (PortA << 4) + 0x0B,
  PA_12 = (PortA << 4) + 0x0C,
  PA_13 = (PortA << 4) + 0x0D,
  PA_14 = (PortA << 4) + 0x0E,
  PA_15 = (PortA << 4) + 0x0F,

  PB_0  = (PortB << 4) + 0x00,
  PB_1  = (PortB << 4) + 0x01,
  PB_2  = (PortB << 4) + 0x02,
  PB_3  = (PortB << 4) + 0x03,
  PB_4  = (PortB << 4) + 0x04,
  PB_5  = (PortB << 4) + 0x05,
  PB_6  = (PortB << 4) + 0x06,
  PB_7  = (PortB << 4) + 0x07,
  PB_8  = (PortB << 4) + 0x08,
  PB_9  = (PortB << 4) + 0x09,
  PB_10 = (PortB << 4) + 0x0A,
  PB_11 = (PortB << 4) + 0x0B,
  PB_12 = (PortB << 4) + 0x0C,
  PB_13 = (PortB << 4) + 0x0D,
  PB_14 = (PortB << 4) + 0x0E,
  PB_15 = (PortB << 4) + 0x0F,
#if defined GPIOC_BASE
  PC_0  = (PortC << 4) + 0x00,
  PC_1  = (PortC << 4) + 0x01,
  PC_2  = (PortC << 4) + 0x02,
  PC_3  = (PortC << 4) + 0x03,
  PC_4  = (PortC << 4) + 0x04,
  PC_5  = (PortC << 4) + 0x05,
  PC_6  = (PortC << 4) + 0x06,
  PC_7  = (PortC << 4) + 0x07,
  PC_8  = (PortC << 4) + 0x08,
  PC_9  = (PortC << 4) + 0x09,
  PC_10 = (PortC << 4) + 0x0A,
  PC_11 = (PortC << 4) + 0x0B,
  PC_12 = (PortC << 4) + 0x0C,
  PC_13 = (PortC << 4) + 0x0D,
  PC_14 = (PortC << 4) + 0x0E,
  PC_15 = (PortC << 4) + 0x0F,
#endif
#if defined GPIOD_BASE
  PD_0  = (PortD << 4) + 0x00,
  PD_1  = (PortD << 4) + 0x01,
  PD_2  = (PortD << 4) + 0x02,
  PD_3  = (PortD << 4) + 0x03,
  PD_4  = (PortD << 4) + 0x04,
  PD_5  = (PortD << 4) + 0x05,
  PD_6  = (PortD << 4) + 0x06,
  PD_7  = (PortD << 4) + 0x07,
  PD_8  = (PortD << 4) + 0x08,
  PD_9  = (PortD << 4) + 0x09,
  PD_10 = (PortD << 4) + 0x0A,
  PD_11 = (PortD << 4) + 0x0B,
  PD_12 = (PortD << 4) + 0x0C,
  PD_13 = (PortD << 4) + 0x0D,
  PD_14 = (PortD << 4) + 0x0E,
  PD_15 = (PortD << 4) + 0x0F,
#endif
#if defined GPIOE_BASE
  PE_0  = (PortE << 4) + 0x00,
  PE_1  = (PortE << 4) + 0x01,
  PE_2  = (PortE << 4) + 0x02,
  PE_3  = (PortE << 4) + 0x03,
  PE_4  = (PortE << 4) + 0x04,
  PE_5  = (PortE << 4) + 0x05,
  PE_6  = (PortE << 4) + 0x06,
  PE_7  = (PortE << 4) + 0x07,
  PE_8  = (PortE << 4) + 0x08,
  PE_9  = (PortE << 4) + 0x09,
  PE_10 = (PortE << 4) + 0x0A,
  PE_11 = (PortE << 4) + 0x0B,
  PE_12 = (PortE << 4) + 0x0C,
  PE_13 = (PortE << 4) + 0x0D,
  PE_14 = (PortE << 4) + 0x0E,
  PE_15 = (PortE << 4) + 0x0F,
#endif
#if defined GPIOF_BASE
  PF_0  = (PortF << 4) + 0x00,
  PF_1  = (PortF << 4) + 0x01,
  PF_2  = (PortF << 4) + 0x02,
  PF_3  = (PortF << 4) + 0x03,
  PF_4  = (PortF << 4) + 0x04,
  PF_5  = (PortF << 4) + 0x05,
  PF_6  = (PortF << 4) + 0x06,
  PF_7  = (PortF << 4) + 0x07,
  PF_8  = (PortF << 4) + 0x08,
  PF_9  = (PortF << 4) + 0x09,
  PF_10 = (PortF << 4) + 0x0A,
  PF_11 = (PortF << 4) + 0x0B,
  PF_12 = (PortF << 4) + 0x0C,
  PF_13 = (PortF << 4) + 0x0D,
  PF_14 = (PortF << 4) + 0x0E,
  PF_15 = (PortF << 4) + 0x0F,
#endif
#if defined GPIOG_BASE
  PG_0  = (PortG << 4) + 0x00,
  PG_1  = (PortG << 4) + 0x01,
  PG_2  = (PortG << 4) + 0x02,
  PG_3  = (PortG << 4) + 0x03,
  PG_4  = (PortG << 4) + 0x04,
  PG_5  = (PortG << 4) + 0x05,
  PG_6  = (PortG << 4) + 0x06,
  PG_7  = (PortG << 4) + 0x07,
  PG_8  = (PortG << 4) + 0x08,
  PG_9  = (PortG << 4) + 0x09,
  PG_10 = (PortG << 4) + 0x0A,
  PG_11 = (PortG << 4) + 0x0B,
  PG_12 = (PortG << 4) + 0x0C,
  PG_13 = (PortG << 4) + 0x0D,
  PG_14 = (PortG << 4) + 0x0E,
  PG_15 = (PortG << 4) + 0x0F,
#endif
#if defined GPIOH_BASE
  PH_0  = (PortH << 4) + 0x00,
  PH_1  = (PortH << 4) + 0x01,
  PH_2  = (PortH << 4) + 0x02,
  PH_3  = (PortH << 4) + 0x03,
  PH_4  = (PortH << 4) + 0x04,
  PH_5  = (PortH << 4) + 0x05,
  PH_6  = (PortH << 4) + 0x06,
  PH_7  = (PortH << 4) + 0x07,
  PH_8  = (PortH << 4) + 0x08,
  PH_9  = (PortH << 4) + 0x09,
  PH_10 = (PortH << 4) + 0x0A,
  PH_11 = (PortH << 4) + 0x0B,
  PH_12 = (PortH << 4) + 0x0C,
  PH_13 = (PortH << 4) + 0x0D,
  PH_14 = (PortH << 4) + 0x0E,
  PH_15 = (PortH << 4) + 0x0F,
#endif
#if defined GPIOI_BASE
  PI_0  = (PortI << 4) + 0x00,
  PI_1  = (PortI << 4) + 0x01,
  PI_2  = (PortI << 4) + 0x02,
  PI_3  = (PortI << 4) + 0x03,
  PI_4  = (PortI << 4) + 0x04,
  PI_5  = (PortI << 4) + 0x05,
  PI_6  = (PortI << 4) + 0x06,
  PI_7  = (PortI << 4) + 0x07,
  PI_8  = (PortI << 4) + 0x08,
  PI_9  = (PortI << 4) + 0x09,
  PI_10 = (PortI << 4) + 0x0A,
  PI_11 = (PortI << 4) + 0x0B,
  PI_12 = (PortI << 4) + 0x0C,
  PI_13 = (PortI << 4) + 0x0D,
  PI_14 = (PortI << 4) + 0x0E,
  PI_15 = (PortI << 4) + 0x0F,
#endif
#if defined GPIOJ_BASE
  PJ_0  = (PortJ << 4) + 0x00,
  PJ_1  = (PortJ << 4) + 0x01,
  PJ_2  = (PortJ << 4STM32G070RBT6基于Arduino框架下点灯程序
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STM32G070RBT6基于Arduino框架GPIO输入输出模式

STM32G070RBT6基于Arduino框架GPIO输入输出模式

⛳STM32G070RBT6 GPIO输入输出

📖GPIO相关函数解析

📗GPIO高速模式

高速模式中，内联函数形参-引脚变量为枚举类型，定义在同目录下的PinNames.h头文件当中。

高速模式中，内联函数形参-引脚变量为`枚举类型`，定义在同目录下的`PinNames.h`头文件当中。