stm32f1xx_hal_def.h File Reference

This file contains HAL common defines, enumeration, macros and structures definitions. More...

#include "stm32f1xx.h"
#include "Legacy/stm32_hal_legacy.h"
#include <stddef.h>

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Macros
#define	HAL_MAX_DELAY   0xFFFFFFFFU
#define	HAL_IS_BIT_SET(REG, BIT)   (((REG) & (BIT)) != 0U)
#define	HAL_IS_BIT_CLR(REG, BIT)   (((REG) & (BIT)) == 0U)
#define	__HAL_LINKDMA(__HANDLE__, __PPP_DMA_FIELD__, __DMA_HANDLE__)
#define	UNUSED(X)   (void)X /* To avoid gcc/g++ warnings */
#define	__HAL_RESET_HANDLE_STATE(__HANDLE__)   ((__HANDLE__)->State = 0U)
	Reset the Handle's State field. More...
#define	__HAL_LOCK(__HANDLE__)
#define	__HAL_UNLOCK(__HANDLE__)
#define	__ALIGN_END

Enumerations
enum	HAL_StatusTypeDef { HAL_OK = 0x00U, HAL_ERROR = 0x01U, HAL_BUSY = 0x02U, HAL_TIMEOUT = 0x03U }
	HAL Status structures definition.
enum	HAL_LockTypeDef { HAL_UNLOCKED = 0x00U, HAL_LOCKED = 0x01U }
	HAL Lock structures definition.

Detailed Description

This file contains HAL common defines, enumeration, macros and structures definitions.

Author

MCD Application Team

Attention

© Copyright (c) 2017 STMicroelectronics. All rights reserved.

This software component is licensed by ST under BSD 3-Clause license, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: opensource.org/licenses/BSD-3-Clause

Macro Definition Documentation

__HAL_LINKDMA

#define __HAL_LINKDMA	(		__HANDLE__,
			__PPP_DMA_FIELD__,
			__DMA_HANDLE__
	)

Value:

do{                                                      \
                              (__HANDLE__)->__PPP_DMA_FIELD__ = &(__DMA_HANDLE__); \
                              (__DMA_HANDLE__).Parent = (__HANDLE__);             \
                          } while(0U)

__HAL_LOCK

#define __HAL_LOCK

(

__HANDLE__

)

Value:

do{                                        \
                                    if((__HANDLE__)->Lock == HAL_LOCKED)   \
                                    {                                      \
                                       return HAL_BUSY;                    \
                                    }                                      \
                                    else                                   \
                                    {                                      \
                                       (__HANDLE__)->Lock = HAL_LOCKED;    \
                                    }                                      \
                                  }while (0U)

__HAL_RESET_HANDLE_STATE

#define __HAL_RESET_HANDLE_STATE

(

__HANDLE__

)

((__HANDLE__)->State = 0U)

Reset the Handle's State field.

Parameters

<strong>HANDLE</strong>

specifies the Peripheral Handle.

Note

This macro can be used for the following purpose:

• When the Handle is declared as local variable; before passing it as parameter to HAL_PPP_Init() for the first time, it is mandatory to use this macro to set to 0 the Handle's "State" field. Otherwise, "State" field may have any random value and the first time the function HAL_PPP_Init() is called, the low level hardware initialization will be missed (i.e. HAL_PPP_MspInit() will not be executed).
• When there is a need to reconfigure the low level hardware: instead of calling HAL_PPP_DeInit() then HAL_PPP_Init(), user can make a call to this macro then HAL_PPP_Init(). In this later function, when the Handle's "State" field is set to 0, it will execute the function HAL_PPP_MspInit() which will reconfigure the low level hardware.

Return values

None

__HAL_UNLOCK

#define __HAL_UNLOCK

(

__HANDLE__

)

Value:

do{                                       \
                                      (__HANDLE__)->Lock = HAL_UNLOCKED;    \
                                    }while (0U)