58 lines
1.0 KiB
C
58 lines
1.0 KiB
C
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/*片上外设基地址 */
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#define PERIPH_BASE ((unsigned int)0x40000000)
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/*总线基地址 */
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#define D3_AHB1PERIPH_BASE (PERIPH_BASE + 0x18020000)
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/*GPIO外设基地址*/
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#define GPIOB_BASE (D3_AHB1PERIPH_BASE + 0x0400)
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/* GPIOB寄存器地址,强制转换成指针 */
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#define GPIOB_MODER *(unsigned int*)(GPIOB_BASE+0x00)
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#define GPIOB_OTYPER *(unsigned int*)(GPIOB_BASE+0x04)
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#define GPIOB_OSPEEDR *(unsigned int*)(GPIOB_BASE+0x08)
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#define GPIOB_PUPDR *(unsigned int*)(GPIOB_BASE+0x0C)
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#define GPIOB_IDR *(unsigned int*)(GPIOB_BASE+0x10)
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#define GPIOB_ODR *(unsigned int*)(GPIOB_BASE+0x14)
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#define GPIOB_BSRR *(unsigned int*)(GPIOB_BASE+0x18)
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#define GPIOB_LCKR *(unsigned int*)(GPIOB_BASE+0x1C)
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#define GPIOB_AFRL *(unsigned int*)(GPIOB_BASE+0x20)
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#define GPIOB_AFRB *(unsigned int*)(GPIOB_BASE+0x24)
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/*RCC外设基地址*/
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#define RCC_BASE (D3_AHB1PERIPH_BASE + 0x4400)
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/*RCC的AHB1时钟使能寄存器地址,强制转换成指针*/
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#define RCC_AHB4ENR *(unsigned int*)(RCC_BASE+0xE0)
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