STM32F4 C++ 封装库 之 EXTI -

这几天看了下 mbed 的源码，给上层应用调用的接口封装的还是不错的。代码质量比较高，注释也很详细，文档和例程比较全。但是驱动层的程序全是 C 语言编写的，代码质量就没有那么高了，注释比较少而且不规范，比较怀疑 mbed 的稳定性。mbed 的实时内核是用的 RTX5 ，文件系统用的 FatFs ，还有一些开源的协议栈，整套系统比较繁杂。mbed 框架是为物联网设备开发的，工业控制级别的产品可以考虑用 RTE 框架。RTE 框架目前驱动层程序还不太完善，有好多需要自己去实现，可能在过一段时间会好一些吧。总之物联网产品可以用 mbed ，工业控制产品可以用 RTE 。这几天封装了 EXTI ，距离整套系统可以产生生产力还有很长的距离要走，我也不知道整个系统会成什么样子，我能坚持多久，不管了先做再说。在这里分享我的 STM32F4 C++ 封装之旅。今天分享《STM32F4 C++ 封装库 之 EXTI》，直接上代码了~

本文引用地址: http://www.21ic.com/app/mcu/201806/764655.htm

stm32f4xx_xexti.h 文件

/**

******************************************************************************

* file stm32f4xx_xexti.h

* author XinLi

* version v1.0

* date 20-March-2018

* brief Header file for external interrupt/event controller module.

******************************************************************************

* attention

*

*

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see .

*

******************************************************************************

*/

#ifndef STM32F4XX_XEXTI_H

#define STM32F4XX_XEXTI_H

#include "stm32f4xx_ll_exti.h"

/*! External interrupt/event controller module. */

class XExti

{

public:

/*! Enumerate of EXTI lines. */

enum ExtiLine

{

Line0 = LL_EXTI_LINE_0, /*!< EXTI line 0. */

Line1 = LL_EXTI_LINE_1, /*!< EXTI line 1. */

Line2 = LL_EXTI_LINE_2, /*!< EXTI line 2. */

Line3 = LL_EXTI_LINE_3, /*!< EXTI line 3. */

Line4 = LL_EXTI_LINE_4, /*!< EXTI line 4. */

Line5 = LL_EXTI_LINE_5, /*!< EXTI line 5. */

Line6 = LL_EXTI_LINE_6, /*!< EXTI line 6. */

Line7 = LL_EXTI_LINE_7, /*!< EXTI line 7. */

Line8 = LL_EXTI_LINE_8, /*!< EXTI line 8. */

Line9 = LL_EXTI_LINE_9, /*!< EXTI line 9. */

Line10 = LL_EXTI_LINE_10, /*!< EXTI line 10. */

Line11 = LL_EXTI_LINE_11, /*!< EXTI line 11. */

Line12 = LL_EXTI_LINE_12, /*!< EXTI line 12. */

Line13 = LL_EXTI_LINE_13, /*!< EXTI line 13. */

Line14 = LL_EXTI_LINE_14, /*!< EXTI line 14. */

Line15 = LL_EXTI_LINE_15, /*!< EXTI line 15. */

#ifdef LL_EXTI_LINE_16

Line16 = LL_EXTI_LINE_16, /*!< EXTI line 16. */

#endif

#ifdef LL_EXTI_LINE_17

Line17 = LL_EXTI_LINE_17, /*!< EXTI line 17. */

#endif

#ifdef LL_EXTI_LINE_18

Line18 = LL_EXTI_LINE_18, /*!< EXTI line 18. */

#endif

#ifdef LL_EXTI_LINE_19

Line19 = LL_EXTI_LINE_19, /*!< EXTI line 19. */

#endif

#ifdef LL_EXTI_LINE_20

Line20 = LL_EXTI_LINE_20, /*!< EXTI line 20. */

#endif

#ifdef LL_EXTI_LINE_21

Line21 = LL_EXTI_LINE_21, /*!< EXTI line 21. */

#endif

#ifdef LL_EXTI_LINE_22

Line22 = LL_EXTI_LINE_22, /*!< EXTI line 22. */

#endif

#ifdef LL_EXTI_LINE_23

Line23 = LL_EXTI_LINE_23, /*!< EXTI line 23. */

#endif

#ifdef LL_EXTI_LINE_24

Line24 = LL_EXTI_LINE_24, /*!< EXTI line 24. */

#endif

#ifdef LL_EXTI_LINE_25

Line25 = LL_EXTI_LINE_25, /*!< EXTI line 25. */

#endif

#ifdef LL_EXTI_LINE_26

Line26 = LL_EXTI_LINE_26, /*!< EXTI line 26. */

#endif

#ifdef LL_EXTI_LINE_27

Line27 = LL_EXTI_LINE_27, /*!< EXTI line 27. */

#endif

#ifdef LL_EXTI_LINE_28

Line28 = LL_EXTI_LINE_28, /*!< EXTI line 28. */

#endif

#ifdef LL_EXTI_LINE_29

Line29 = LL_EXTI_LINE_29, /*!< EXTI line 29. */

#endif

#ifdef LL_EXTI_LINE_30

Line30 = LL_EXTI_LINE_30, /*!< EXTI line 30. */

#endif

#ifdef LL_EXTI_LINE_31

Line31 = LL_EXTI_LINE_31, /*!< EXTI line 31. */

#endif

};

/*! Enumerate of EXTI modes. */

enum ExtiMode

{

ModeInterrupt = LL_EXTI_MODE_IT, /*!< EXTI interrupt mode. */

ModeEvent = LL_EXTI_MODE_EVENT, /*!< EXTI event mode. */

ModeInterruptEvent = LL_EXTI_MODE_IT_EVENT, /*!< EXTI interrupt and event mode. */

};

/*! Enumerate of EXTI triggers. */

enum ExtiTrigger

{

TriggerNone = LL_EXTI_TRIGGER_NONE, /*!< EXTI none trigger. */

TriggerRising = LL_EXTI_TRIGGER_RISING, /*!< EXTI rising trigger. */

TriggerFalling = LL_EXTI_TRIGGER_FALLING, /*!< EXTI falling trigger. */

TriggerRisingFalling = LL_EXTI_TRIGGER_RISING_FALLING, /*!< EXTI rising and falling trigger. */

};

XExti(ExtiLine line, ExtiMode mode, ExtiTrigger trigger = TriggerNone);

virtual ~XExti();

void setLine(ExtiLine line);

ExtiLine getLine() const;

void setMode(ExtiMode mode);

ExtiMode getMode() const;

void setTrigger(ExtiTrigger trigger);

ExtiTrigger getTrigger() const;

void setFlag();

void clearFlag();

bool isFlagSet() const;

bool open();

void close();

bool isOpen() const;

private:

ExtiLine line;

ExtiMode mode;

ExtiTrigger trigger;

bool openFlag;

XExti(const XExti &) = delete;

XExti & operator = (const XExti &) = delete;

};

#endif // STM32F4XX_XEXTI_H

stm32f4xx_xexti.cpp 文件

/**

******************************************************************************

* file stm32f4xx_xexti.cpp

* author XinLi

* version v1.0

* date 20-March-2018

* brief External interrupt/event controller module driver.

******************************************************************************

* attention

*

*

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see .

*

******************************************************************************

*/