为什么会出现此类型转换错误
Why do I get this Type conversion error
我收到这个编译器错误
../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 pin 作为 u16 类型传递时，
如果我用常数值调用相同的函数，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>© 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****/
添加此 pragma 解决了该问题；
#if defined ( __GNUC__ )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
并在您想恢复推送的指令时执行诊断弹出
我收到这个编译器错误 ../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 pin 作为 u16 类型传递时，
如果我用常数值调用相同的函数，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>© 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****/
添加此 pragma 解决了该问题；
#if defined ( __GNUC__ )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
并在您想恢复推送的指令时执行诊断弹出