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喜欢寄存器操作的，可以尝试用这些驱动，重要的是SDIO, USB这些复杂的驱动也给出了。
ST官方推出的那个CubeF4封装的一层又一层，太烦人了。
这里贴一个外部中断的驱动：
- /* ----------------------------------------------------------------------
- * Copyright (C) 2013 ARM Limited. All rights reserved.
- *
- * $Date: 12. March 2013
- * $Revision: V1.00
- *
- * Project: EXTI Driver definitions for ST STM32F4xx
- * -------------------------------------------------------------------- */
- #ifndef __EXTI_STM32F4XX_H
- #define __EXTI_STM32F4XX_H
- #include <stdint.h>
- #include <stdbool.h>
- #include "stm32f4xx.h"
- #if defined (__CC_ARM)
- #define __FORCE_INLINE static __forceinline
- #else
- #define __FORCE_INLINE __STATIC_INLINE
- #endif
- /// EXTI Pin
- typedef enum _EXTI_PIN {
- EXTI_PIN_PA,
- EXTI_PIN_PB,
- EXTI_PIN_PC,
- EXTI_PIN_PD,
- EXTI_PIN_PE,
- EXTI_PIN_PF,
- EXTI_PIN_PG,
- EXTI_PIN_PH,
- EXTI_PIN_PI,
- } EXTI_PIN;
- /// EXTI Mode
- typedef enum _EXTI_MODE {
- EXTI_MODE_INTERRUPT,
- EXTI_MODE_EVENT
- } EXTI_MODE;
- /// EXTI Trigger
- typedef enum _EXTI_TRIGGER {
- EXTI_TRIGGER_NONE,
- EXTI_TRIGGER_RISING,
- EXTI_TRIGGER_FALLING,
- EXTI_TRIGGER_RISING_FALLING
- } EXTI_TRIGGER;
- /**
- \fn void EXTI_Setup (void)
- \brief Setup EXTI
- */
- extern void EXTI_Setup (void);
- /**
- \fn void EXTI_ConfigurePin (uint32_t line, EXTI_PIN pin)
- \brief Configure EXTI pin
- \param[in] line Line number
- \param[in] pin ref EXTI_PIN
- \return true - success
- false - error
- */
- extern bool EXTI_ConfigurePin (uint32_t line, EXTI_PIN pin);
- /**
- \fn void EXTI_ConfigureLine (uint32_t line,
- EXTI_MODE mode,
- EXTI_TRIGGER trigger)
- \brief Configure EXTI line
- \param[in] line Line number
- \param[in] mode \ref EXTI_MODE
- \param[in] trigger \ref EXTI_TRIGGER
- */
- extern void EXTI_ConfigureLine (uint32_t line,
- EXTI_MODE mode,
- EXTI_TRIGGER trigger);
- /**
- \fn void EXTI_ReadPendingBit (uint32_t line)
- \brief Read pending bit
- \param[in] line Line number
- \return bit value (0 or 1)
- */
- __FORCE_INLINE bool EXTI_ReadPendingBit (uint32_t line) {
- return ((EXTI->PR & (1UL << line)) != 0);
- }
- /**
- \fn void EXTI_ClearPendingBit (uint32_t line)
- \brief Clear pending bit
- \param[in] line Line number
- */
- __FORCE_INLINE void EXTI_ClearPendingBit (uint32_t line) {
- EXTI->PR = 1UL << line;
- }
- /**
- \fn void EXTI_SoftwareTrigger (uint32_t line)
- \brief Generate Software trigger
- \param[in] line Line number
- */
- __FORCE_INLINE void EXTI_SoftwareTrigger (uint32_t line) {
- EXTI->SWIER = 1UL << line;
- }
- #endif /* __EXTI_STM32F4XX_H */
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发表于 2014-6-14 14:26:13
发表于 2014-6-16 16:41:57
楼主
