stm32 直接讀寫寄存器代碼風格總結

根據memory mapping 直接寫寄存器代碼風格：

#define GPIOA_BASE1 (uint32_t)0x40010800#define GPIOA_CRH ((uint32_t*)(GPIOA_BASE1+0x04))

*GPIOA_CRH=0x000004B0;//A端口//復用推挽輸出

結構體指針解決連續多個寄存器讀寫設置：

#define Usart1_BASE	 0x40013800typedef struct{__IO uint32_t SR;__IO uint32_t DR;__IO uint32_t BRR;__IO uint32_t CR1;__IO uint32_t CR2;__IO uint32_t CR3;__IO uint32_t GTPR;}Usart1_typedef;#define Usart1 ((Usart1_typedef*)Usart1_BASE)