STM32中的数据类型。求解答，

会飞的大白猪 · 发表于 2015-8-10 15:06:51

STM32中的定义的数据类型都是什么啊。
U8 U16 uint16_t 还有其他的。可不可以给详细讲解一下啊。求助

jiutianshenjian · 发表于 2015-8-10 15:06:52

打开stm32f10x.h:
/*!< STM32F10x Standard

eripheral Library old types (maintained for legacy purpose) */
typedef int32_t  s32;
typedef int16_t s16;
typedef int8_t  s8;

typedef const int32_t sc32;  /*!< Read Only */
typedef const int16_t sc16;  /*!< Read Only */
typedef const int8_t sc8;   /*!< Read Only */

typedef __IO int32_t  vs32;
typedef __IO int16_t  vs16;
typedef __IO int8_t   vs8;

typedef __I int32_t vsc32;  /*!< Read Only */
typedef __I int16_t vsc16;  /*!< Read Only */
typedef __I int8_t vsc8;   /*!< Read Only */

typedef uint32_t  u32;
typedef uint16_t u16;
typedef uint8_t  u8;

typedef const uint32_t uc32;  /*!< Read Only */
typedef const uint16_t uc16;  /*!< Read Only */
typedef const uint8_t uc8;   /*!< Read Only */

typedef __IO uint32_t  vu32;
typedef __IO uint16_t vu16;
typedef __IO uint8_t  vu8;

typedef __I uint32_t vuc32;  /*!< Read Only */
typedef __I uint16_t vuc16;  /*!< Read Only */
typedef __I uint8_t vuc8;   /*!< Read Only */

480行：
#include <stdint.h>

打开stdint.h：
typedef   signed          char int8_t;
typedef   signed short     int int16_t;
typedef   signed           int int32_t;
typedef   signed       __int64 int64_t;

    /* exact-width unsigned integer types */
typedef unsigned          char uint8_t;
typedef unsigned short     int uint16_t;
typedef unsigned           int uint32_t;
typedef unsigned       __int64 uint64_t;

    /* 7.18.1.2 */

    /* smallest type of at least n bits */
    /* minimum-width signed integer types */
typedef   signed          char int_least8_t;
typedef   signed short     int int_least16_t;
typedef   signed           int int_least32_t;
typedef   signed       __int64 int_least64_t;

    /* minimum-width unsigned integer types */
typedef unsigned          char uint_least8_t;
typedef unsigned short     int uint_least16_t;
typedef unsigned           int uint_least32_t;
typedef unsigned       __int64 uint_least64_t;

    /* 7.18.1.3 */

    /* fastest minimum-width signed integer types */
typedef   signed           int int_fast8_t;
typedef   signed           int int_fast16_t;
typedef   signed           int int_fast32_t;
typedef   signed       __int64 int_fast64_t;

    /* fastest minimum-width unsigned integer types */
typedef unsigned           int uint_fast8_t;
typedef unsigned           int uint_fast16_t;
typedef unsigned           int uint_fast32_t;
typedef unsigned       __int64 uint_fast64_t;

    /* 7.18.1.4 integer types capable of holding object pointers */
typedef   signed           int intptr_t;
typedef unsigned           int uintptr_t;

    /* 7.18.1.5 greatest-width integer types */
typedef   signed       __int64 intmax_t;
typedef unsigned       __int64 uintmax_t;