以下是stm32f4xx.h中对GPIO的定义。
- typedef struct
- {
- __IO uint32_t MODER; /*!< GPIO port mode register, Address offset: 0x00 */
- __IO uint32_t OTYPER; /*!< GPIO port output type register, Address offset: 0x04 */
- __IO uint32_t OSPEEDR; /*!< GPIO port output speed register, Address offset: 0x08 */
- __IO uint32_t PUPDR; /*!< GPIO port pull-up/pull-down register, Address offset: 0x0C */
- __IO uint32_t IDR; /*!< GPIO port input data register, Address offset: 0x10 */
- __IO uint32_t ODR; /*!< GPIO port output data register, Address offset: 0x14 */
- __IO uint16_t BSRRL; /*!< GPIO port bit set/reset low register, Address offset: 0x18 */
- __IO uint16_t BSRRH; /*!< GPIO port bit set/reset high register, Address offset: 0x1A */
- __IO uint32_t LCKR; /*!< GPIO port configuration lock register, Address offset: 0x1C */
- __IO uint32_t AFR[2]; /*!< GPIO alternate function registers, Address offset: 0x20-0x24 */
- } GPIO_TypeDef;
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