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我收到此编译器错误 ../include/BlinkLed.h:46:68: 错误:从“int”转换为“uint16_t {aka short unsigned int}”可能会改变其值 [-Werror=conversion]

当我在 GPIO_SetBit/GPIO_ResetBits 函数上将引脚作为 u16 类型传递时,

如果我用恒定值调用相同的函数,例如。

GPIO_SetBits(BLINK_GPIOx(BLINK_PORT_NUMBER),BLINK_PIN_MASK(15)); 程序编译并运行良好。如何避免此编译错误,但仍将引脚作为参数传递。

 //
    // This file is part of the GNU ARM Eclipse distribution.
    // Copyright (c) 2014 Liviu Ionescu.
    //

    #ifndef BLINKLED_H_
    #define BLINKLED_H_

    #include "stm32f30x.h"
    #include "diag/Trace.h"

    // ----- LED definitions ------------------------------------------------------

    // Adjust these definitions for your own board.

    // STM32F3DISCOVERY definitions (GREEN led, E15, active high)
    // (SEGGER J-Link device name: STM32F303VC).

    // Port numbers: 0=A, 1=B, 2=C, 3=D, 4=E, 5=F, 6=G, ...
    #define BLINK_PORT_NUMBER               (4)
    #define BLINK_PIN_NUMBER                (15)
    #define BLINK_ACTIVE_LOW                (0)

    #define BLINK_GPIOx(_N)                 ((GPIO_TypeDef *)(GPIOA_BASE + (GPIOB_BASE-GPIOA_BASE)*(_N)))
    #define BLINK_PIN_MASK(_N)              (1 << (_N))
    #define BLINK_RCC_MASKx(_N)             (RCC_AHBPeriph_GPIOA << (_N))
    // ----------------------------------------------------------------------------

    class BlinkLed
    {
    public:
      BlinkLed() = default;

      void
      powerUp(u16 pin);

      inline void
      __attribute__((always_inline))
      turnOn(u16 pin)
      {
          trace_printf("turn on %u\n", pin);
    #if (BLINK_ACTIVE_LOW)
        GPIO_ResetBits(BLINK_GPIOx(BLINK_PORT_NUMBER),
           BLINK_PIN_MASK( pin));
    #else
        GPIO_SetBits(BLINK_GPIOx(BLINK_PORT_NUMBER),BLINK_PIN_MASK(pin));
    #endif
      }*emphasized text*

      inline void
      __attribute__((always_inline))
      turnOff(u16 pin)
      {
    #if (BLINK_ACTIVE_LOW)
        GPIO_SetBits(BLINK_GPIOx(BLINK_PORT_NUMBER),
            pin);
    #else
        GPIO_ResetBits(BLINK_GPIOx(BLINK_PORT_NUMBER),
            pin);
    #endif
      }
    };

    // ----------------------------------------------------------------------------

    #endif // BLINKLED_H_


The functions GPIO_SetBits/GPIO_ResetBits are declared as

/**
  ******************************************************************************
  * @file    stm32f30x_gpio.c
  * @author  MCD Application Team
  * @version V1.0.1
  * @date    23-October-2012
  * @brief   This file provides firmware functions to manage the following 
  *          functionalities of the GPIO peripheral:
  *           + Initialization and Configuration functions
  *           + GPIO Read and Write functions
  *           + GPIO Alternate functions configuration functions
  *
  *  @verbatim


 ===============================================================================
                      ##### How to use this driver #####
 ===============================================================================
    [..]
    (#) Enable the GPIO AHB clock using RCC_AHBPeriphClockCmd()
    (#) Configure the GPIO pin(s) using GPIO_Init()
        Four possible configuration are available for each pin:
        (++) Input: Floating, Pull-up, Pull-down.
        (++) Output: Push-Pull (Pull-up, Pull-down or no Pull),
                     Open Drain (Pull-up, Pull-down or no Pull).
             In output mode, the speed is configurable: Low, Medium, Fast or High.
        (++) Alternate Function: Push-Pull (Pull-up, Pull-down or no Pull), 
                                 Open Drain (Pull-up, Pull-down or no Pull).
        (++) Analog: required mode when a pin is to be used as ADC channel,
             DAC output or comparator input.
    (#) Peripherals alternate function:
        (++) For ADC, DAC and comparators, configure the desired pin in 
             analog mode using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AN
        (++) For other peripherals (TIM, USART...):
             (+++) Connect the pin to the desired peripherals' Alternate 
                   Function (AF) using GPIO_PinAFConfig() function.
             (+++) Configure the desired pin in alternate function mode using
                   GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
             (+++) Select the type, pull-up/pull-down and output speed via 
                   GPIO_PuPd, GPIO_OType and GPIO_Speed members.
             (+++) Call GPIO_Init() function.
    (#) To get the level of a pin configured in input mode use GPIO_ReadInputDataBit()
    (#) To set/reset the level of a pin configured in output mode use
        GPIO_SetBits()/GPIO_ResetBits()
    (#) During and just after reset, the alternate functions are not active 
        and the GPIO pins are configured in input floating mode (except JTAG pins).
    (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as 
        general-purpose (PC14 and PC15, respectively) when the LSE
        oscillator is off. The LSE has priority over the GPIO function.
    (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as general-purpose 
        (PF0 and PF1 respectively) when the HSE oscillator is off. The HSE has 
        the priority over the GPIO function.  

  @endverbatim

  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2012 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 "stm32f30x_gpio.h"
    #include "stm32f30x_rcc.h"

    /** @addtogroup STM32F30x_StdPeriph_Driver
      * @{
      */

    /** @defgroup GPIO 
      * @brief GPIO driver modules
      * @{
      */


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


    /* Private macro -------------------------------------------------------------*/
    /* Private variables ---------------------------------------------------------*/
    /* Private function prototypes -----------------------------------------------*/
    /* Private functions ---------------------------------------------------------*/

    /** @defgroup GPIO_Private_Functions 
      * @{
      */

    /** @defgroup GPIO_Group1 Initialization and Configuration
     *  @brief   Initialization and Configuration
     *
    @verbatim
     ===============================================================================
                ##### Initialization and Configuration #####
     ===============================================================================

    @endverbatim
      * @{
      */

    /**
      * @brief  Deinitializes the GPIOx peripheral registers to their default reset 
      *         values.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @retval None
      */
    void GPIO_DeInit(GPIO_TypeDef* GPIOx)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));

      if(GPIOx == GPIOA)
      {
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, ENABLE);
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, DISABLE);
      }
      else if(GPIOx == GPIOB)
      {
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, ENABLE);
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, DISABLE);
      }
      else if(GPIOx == GPIOC)
      {
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, ENABLE);
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, DISABLE);
      }
      else if(GPIOx == GPIOD)
      {
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, ENABLE);
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, DISABLE);
      }
      else if(GPIOx == GPIOE)
      {
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, ENABLE);
        RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, DISABLE);
      }
      else
      {
        if(GPIOx == GPIOF)
        {
          RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, ENABLE);
          RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, DISABLE);
        }
      }
    }

    // [ILG]
    #if defined ( __GNUC__ )
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wconversion"
    #endif

    /**
      * @brief  Initializes the GPIOx peripheral according to the specified 
      *         parameters in the GPIO_InitStruct.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that 
      *         contains the configuration information for the specified GPIO
      *         peripheral.
      * @note   GPIO_Pin: selects the pin to be configured:
      *         GPIO_Pin_0->GPIO_Pin_15 for GPIOA, GPIOB, GPIOC, GPIOD and GPIOE;
      *         GPIO_Pin_0->GPIO_Pin_2, GPIO_Pin_4, GPIO_Pin_6, GPIO_Pin_9 
      *                       and GPIO_Pin_10 for GPIOF.
      * @retval None
      */
    void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
    { 
      uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00;

      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
      assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
      assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd));

      /*-------------------------- Configure the port pins -----------------------*/
      /*-- GPIO Mode Configuration --*/
      for (pinpos = 0x00; pinpos < 0x10; pinpos++)
      {
        pos = ((uint32_t)0x01) << pinpos;

        /* Get the port pins position */
        currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;

        if (currentpin == pos)
        {
          if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF))
          {
            /* Check Speed mode parameters */
            assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));

            /* Speed mode configuration */
            GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (pinpos * 2));
            GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2));

            /* Check Output mode parameters */
            assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType));

            /* Output mode configuration */
            GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)pinpos));
            GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos));
          }

          GPIOx->MODER  &= ~(GPIO_MODER_MODER0 << (pinpos * 2));

          GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2));

          /* Pull-up Pull down resistor configuration */
          GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)pinpos * 2));
          GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2));
        }
      }
    }

    // [ILG]
    #if defined ( __GNUC__ )
    #pragma GCC diagnostic pop
    #endif

    /**
      * @brief  Fills each GPIO_InitStruct member with its default value.
      * @param  GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure which will 
      *         be initialized.
      * @retval None
      */
    void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
    {
      /* Reset GPIO init structure parameters values */
      GPIO_InitStruct->GPIO_Pin  = GPIO_Pin_All;
      GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN;
      GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
      GPIO_InitStruct->GPIO_OType = GPIO_OType_PP;
      GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL;
    }

    /**
      * @brief  Locks GPIO Pins configuration registers.
      *         The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
      *         GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
      * @note   The configuration of the locked GPIO pins can no longer be modified
      *         until the next reset.
      * @param  GPIOx: where x can be (A or B or D) to select the GPIO peripheral.
      * @param  GPIO_Pin: specifies the port bit to be written.
      *   This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
      * @retval None
      */
    void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
    {
      uint32_t tmp = 0x00010000;

      /* Check the parameters */
      assert_param(IS_GPIO_LIST_PERIPH(GPIOx));
      assert_param(IS_GPIO_PIN(GPIO_Pin));

      tmp |= GPIO_Pin;
      /* Set LCKK bit */
      GPIOx->LCKR = tmp;
      /* Reset LCKK bit */
      GPIOx->LCKR =  GPIO_Pin;
      /* Set LCKK bit */
      GPIOx->LCKR = tmp;
      /* Read LCKK bit */
      tmp = GPIOx->LCKR;
      /* Read LCKK bit */
      tmp = GPIOx->LCKR;
    }

    /**
      * @}
      */

    /** @defgroup GPIO_Group2 GPIO Read and Write
     *  @brief    GPIO Read and Write
     *
    @verbatim
     ===============================================================================
                      ##### GPIO Read and Write #####
     ===============================================================================  

    @endverbatim
      * @{
      */   

    /**
      * @brief  Reads the specified input port pin.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_Pin: specifies the port bit to read.
      * @note   This parameter can be GPIO_Pin_x where x can be :
      *         (0..15) for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE;
      *         (0..2, 4, 6, 9..10) for GPIOF.
      * @retval The input port pin value.
      */
    uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
    {
      uint8_t bitstatus = 0x00;

      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GET_GPIO_PIN(GPIO_Pin));

      if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
      {
        bitstatus = (uint8_t)Bit_SET;
      }
      else
      {
        bitstatus = (uint8_t)Bit_RESET;
      }
      return bitstatus;
    }

    /**
      * @brief  Reads the specified input port pin.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @retval The input port pin value.
      */
    uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));

      return ((uint16_t)GPIOx->IDR);
    }

    /**
      * @brief  Reads the specified output data port bit.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_Pin: Specifies the port bit to read.
      * @note   This parameter can be GPIO_Pin_x where x can be :
      *         (0..15) for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE;
      *         (0..2, 4, 6, 9..10) for GPIOF.
      * @retval The output port pin value.
      */
    uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
    {
      uint8_t bitstatus = 0x00;

      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GET_GPIO_PIN(GPIO_Pin));

      if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
      {
        bitstatus = (uint8_t)Bit_SET;
      }
      else
      {
        bitstatus = (uint8_t)Bit_RESET;
      }
      return bitstatus;
    }

    /**
      * @brief  Reads the specified GPIO output data port.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @retval GPIO output data port value.
      */
    uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));

      return ((uint16_t)GPIOx->ODR);
    }

    /**
      * @brief  Sets the selected data port bits.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_Pin: specifies the port bits to be written.
      * @note   This parameter can be GPIO_Pin_x where x can be :
      *         (0..15) for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE;
      *         (0..2, 4, 6, 9..10) for GPIOF.
      * @retval None
      */
    void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      //assert_param(IS_GPIO_PIN(GPIO_Pin));

      GPIOx->BSRR = GPIO_Pin;
    }

    /**
      * @brief  Clears the selected data port bits.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_Pin: specifies the port bits to be written.
      * @note   This parameter can be GPIO_Pin_x where x can be :
      *         (0..15) for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE;
      *         (0..2, 4, 6, 9..10) for GPIOF.
      * @retval None
      */
    void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GPIO_PIN(GPIO_Pin));

      GPIOx->BRR = GPIO_Pin;
    }

    /**
      * @brief  Sets or clears the selected data port bit.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_Pin: specifies the port bit to be written.
      * @note   This parameter can be GPIO_Pin_x where x can be :
      *         (0..15) for GPIOA, GPIOB, GPIOC, GPIOD or GPIOE;
      *         (0..2, 4, 6, 9..10) for GPIOF.
      * @param  BitVal: specifies the value to be written to the selected bit.
      *   This parameter can be one of the BitAction enumeration values:
      *     @arg Bit_RESET: to clear the port pin
      *     @arg Bit_SET: to set the port pin
      * @retval None
      */
    void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
      assert_param(IS_GPIO_BIT_ACTION(BitVal));

      if (BitVal != Bit_RESET)
      {
        GPIOx->BSRR = GPIO_Pin;
      }
      else
      {
        GPIOx->BRR = GPIO_Pin ;
      }
    }

    /**
      * @brief  Writes data to the specified GPIO data port.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  PortVal: specifies the value to be written to the port output data 
      *                  register.
      * @retval None
      */
    void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
    {
      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));

      GPIOx->ODR = PortVal;
    }

    /**
      * @}
      */

    /** @defgroup GPIO_Group3 GPIO Alternate functions configuration functions
     *  @brief   GPIO Alternate functions configuration functions
     *
    @verbatim
     ===============================================================================
              ##### GPIO Alternate functions configuration functions #####
     ===============================================================================

    @endverbatim
      * @{
      */

    /**
      * @brief  Writes data to the specified GPIO data port.
      * @param  GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
      * @param  GPIO_PinSource: specifies the pin for the Alternate function.
      *   This parameter can be GPIO_PinSourcex where x can be (0..15).
      * @param  GPIO_AF: selects the pin to be used as Alternate function.  
      *   This parameter can be one of the following value:
      *     @arg GPIO_AF_0:  JTCK-SWCLK, JTDI, JTDO/TRACESW0, JTMS-SWDAT, MCO, NJTRST, 
      *                      TRACED, TRACECK.
      *     @arg GPIO_AF_1:  OUT, TIM2, TIM15, TIM16, TIM17.
      *     @arg GPIO_AF_2:  COMP1_OUT, TIM1, TIM2, TIM3, TIM4, TIM8, TIM15.
      *     @arg GPIO_AF_3:  COMP7_OUT, TIM8, TIM15, Touch.
      *     @arg GPIO_AF_4:  I2C1, I2C2, TIM1, TIM8, TIM16, TIM17.
      *     @arg GPIO_AF_5:  IR_OUT, I2S2, I2S3, SPI1, SPI2, TIM8, USART4, USART5
      *     @arg GPIO_AF_6:  IR_OUT, I2S2, I2S3, SPI2, SPI3, TIM1, TIM8
      *     @arg GPIO_AF_7:  AOP2_OUT, CAN, COMP3_OUT, COMP5_OUT, COMP6_OUT, USART1, 
      *                      USART2, USART3.
      *     @arg GPIO_AF_8:  COMP1_OUT, COMP2_OUT, COMP3_OUT, COMP4_OUT, COMP5_OUT, 
      *                      COMP6_OUT.
      *     @arg GPIO_AF_9:  AOP4_OUT, CAN, TIM1, TIM8, TIM15.
      *     @arg GPIO_AF_10: AOP1_OUT, AOP3_OUT, TIM2, TIM3, TIM4, TIM8, TIM17. 
      *     @arg GPIO_AF_11: TIM1, TIM8.
      *     @arg GPIO_AF_12: TIM1.
      *     @arg GPIO_AF_14: USBDM, USBDP.
      *     @arg GPIO_AF_15: OUT.             
      * @note  The pin should already been configured in Alternate Function mode(AF)
      *        using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
      * @note  Refer to the Alternate function mapping table in the device datasheet 
      *        for the detailed mapping of the system and peripherals alternate 
      *        function I/O pins.
      * @retval None
      */
    void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
    {
      uint32_t temp = 0x00;
      uint32_t temp_2 = 0x00;

      /* Check the parameters */
      assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
      assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
      assert_param(IS_GPIO_AF(GPIO_AF));

      temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
      GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
      temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp;
      GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
    }

    /**
      * @}
      */

    /**
      * @}
      */

    /**
      * @}
      */

    /**
      * @}
      */

    /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
4

1 回答 1

0

添加这个编译指示解决了这个问题;

#if defined ( __GNUC__ )
    #pragma GCC diagnostic push
    #pragma GCC diagnostic ignored "-Wconversion"
#endif

并在您想要恢复推送指令时执行诊断弹出

于 2015-03-26T10:32:44.430 回答