初出茅庐的小李第85篇博客之STM32寄存器 *** 作模板编写

初出茅庐的小李第85篇博客之STM32寄存器 *** 作模板编写 *** 作寄存器有

#1.GPIO  端口模式寄存器      (GPIOx_MODER)   (x = A..I)
#2.GPIO  端口输出类型寄存器  (GPIOx_OTYPER)  (x = A..I)
#3.GPIO  端口输出速度寄存器  (GPIOx_OSPEEDR) (x = A..I)
#4.GPIO  端口上拉/下拉寄存器 (GPIOx_PUPDR)   (x = A..I)
#5.GPIO  端口输入数据寄存器  (GPIOx_IDR)     (x = A..I)
#6.GPIO  端口输出数据寄存器  (GPIOx_ODR)     (x = A..I)
#7.GPIO  端口置位/复位寄存器 (GPIOx_BSRR)    (x = A..I)
#8.GPIO  端口配置锁定寄存器  (GPIOx_LCKR)    (x = A..I)
#9.GPIO  复用功能低位寄存器  (GPIOx_AFRL)    (x = A..I)
#10.GPIO 复用功能高位寄存器  (GPIOx_AFRH)    (x = A..I)

*** 作方法如下

GPIOx->MODER   &= ~(0x3<<(2*PIN_NUM));
GPIOx->MODER   |=  (0x0<<(2*PIN_NUM));


GPIOx->MODER   &= ~(0x3<<(2*PIN_NUM));
GPIOx->MODER   |=  (0x1<<(2*PIN_NUM));


GPIOx->MODER   &= ~(0x3<<(2*PIN_NUM));
GPIOx->MODER   |=  (0x2<<(2*PIN_NUM));


GPIOx->MODER   &= ~(0x3<<(2*PIN_NUM));
GPIOx->MODER   |=  (0x3<<(2*PIN_NUM));



GPIOx->OTYPER  &= ~(0x1<<(PIN_NUM));
GPIOx->OTYPER  |=  (0x0<<(PIN_NUM));


GPIOx->OTYPER  &= ~(0x1<<(PIN_NUM));
GPIOx->OTYPER  |=  (0x0<<(PIN_NUM));


 



GPIOx->OSPEEDR &= ~(0x3<<(2*PIN_NUM));
GPIOx->OSPEEDR |=  (0x0<<(2*PIN_NUM));

GPIOx->OSPEEDR &= ~(0x3<<(2*PIN_NUM));
GPIOx->OSPEEDR |=  (0x1<<(2*PIN_NUM));

GPIOx->OSPEEDR &= ~(0x3<<(2*PIN_NUM));
GPIOx->OSPEEDR |=  (0x2<<(2*PIN_NUM));

GPIOx->OSPEEDR &= ~(0x3<<(2*PIN_NUM));
GPIOx->OSPEEDR |=  (0x3<<(2*PIN_NUM));







GPIOx->PUPDR   &= ~(0x3<<(2*PIN_NUM));
GPIOx->PUPDR   |=  (0x0<<(2*PIN_NUM));

GPIOx->PUPDR   &= ~(0x3<<(2*PIN_NUM));
GPIOx->PUPDR   |=  (0x1<<(2*PIN_NUM));

GPIOx->PUPDR   &= ~(0x3<<(2*PIN_NUM));
GPIOx->PUPDR   |=  (0x2<<(2*PIN_NUM));



((GPIOx->IDR&(0x1<>PIN_NUM))

GPIOx->ODR     &= ~(0x1<ODR     |=  (0x0<ODR     &= ~(0x1<ODR     |=  (0x1<BSRR    &= ~(0x1<<(16+PIN_NUM));
GPIOx->BSRR    |=  (0x1<<(16+PIN_NUM));


GPIOx->BSRR    &= ~(0x1<BSRR    |=  (0x1<AFRL    &= ~(0x1<<16);
GPIOx->AFRH    &=  (0x0<<16);

GPIOx->LCKR    &= ~(0x1<<16);
GPIOx->LCKR    |=  (0x1<<16);


GPIOx->AFRL    &= ~(0xf<<(4*PIN_NUM));
GPIOx->AFRL    |=  ((AF_NUM)<<(4*PIN_NUM));


GPIOx->AFRH    &= ~(0xf<<(4*(PIN_NUM-8)));
GPIOx->AFRH    |=  ((AF_NUM)<<(4*(PIN_NUM-8)));