STM32學習筆記

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1.STM32中變數的定義（在stm32f103x.h中）

 1 /*!< STM32F10x Standard Peripheral Library old types (maintained for legacy purpose) */ 2 typedef int32_t  s32; 3 typedef int16_t s16; 4 typedef int8_t  s8; 5  6 typedef const int32_t sc32;  /*!< Read Only */ 7 typedef const int16_t sc16;  /*!< Read Only */ 8 typedef const int8_t sc8;   /*!< Read Only */ 9 10 typedef __IO int32_t  vs32;11 typedef __IO int16_t  vs16;12 typedef __IO int8_t   vs8;13 14 typedef __I int32_t vsc32;  /*!< Read Only */15 typedef __I int16_t vsc16;  /*!< Read Only */16 typedef __I int8_t vsc8;   /*!< Read Only */17 18 typedef uint32_t  u32;19 typedef uint16_t u16;20 typedef uint8_t  u8;21 22 typedef const uint32_t uc32;  /*!< Read Only */23 typedef const uint16_t uc16;  /*!< Read Only */24 typedef const uint8_t uc8;   /*!< Read Only */25 26 typedef __IO uint32_t  vu32;27 typedef __IO uint16_t vu16;28 typedef __IO uint8_t  vu8;29 30 typedef __I uint32_t vuc32;  /*!< Read Only */31 typedef __I uint16_t vuc16;  /*!< Read Only */32 typedef __I uint8_t vuc8;   /*!< Read Only */