3.0以后的版本中使用了CMSIS數(shù)據(jù)類型，變量的定義有所不同，但是出于兼容舊版本的目的，以上的數(shù)據(jù)類型仍然兼容。CMSIS的IO類型限定詞如表 5?7所示，CMSIS和STM32固件庫(kù)的數(shù)據(jù)類型對(duì)比如表 5?8所示。這些數(shù)據(jù)類型可以在STM32F10x_StdPeriph_Lib_V3.4.0\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\stm32f10x.h中找到具體的定義，此部分定義如下。

/*!< STM32F10x Standard Peripheral 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 */

表 5?7 CMSIS IO類型限定詞

表 5?8 固件庫(kù)與CMSIS數(shù)據(jù)類型對(duì)比

stm32f10x.h文件中還包含了常用的布爾形變量定義，如：

typedef enum {RESET = 0, SET = !RESET} FlagStatus, ITStatus;

typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;

#define IS_FUNCTIONAL_STATE(STATE) (((STATE) == DISABLE) || ((STATE) == ENABLE))

typedef enum {ERROR = 0, SUCCESS = !ERROR} ErrorStatus;