第一个函数 GPIO_SetBits(GPIOD,GPIO_Pin_2); 当该函数被程序执行的时候,会改变I/O对应寄存器的值,让I/O口PD2输出电压3v3,于是led就被点亮了. 第二个函数 GPIO_ResetBits(GPIOD,GPIO_Pin_2); 当该函数被程序执行的时候,就会把寄存器的逻辑电平改成0,那么I/O口PD2实际的输出电压就会变成0v了,
问在GPIO_pin和GPIO_port中封装STM32的好方法EN测试(API函数和STM32封装的一样) 1,开发板上的led连...
你好,@Nithyanantham、 请允许我向您介绍 Cy_GPIO_Port_Init 的函数定义,您会发现它将对相应的 PORT 寄存器字段执行 32 位写入,包括您要配置驱动模式的 CFG 寄存器字段。 如果仅将 portC.cfg 配置为 CY_GPIO_DM_STRONG (0x0E),那么它只会将 0x0E 写入 GPIO_PRT5_CFG 寄存器的整个 32 位,本质...
在嵌入式系统中,特别是在微控制器(MCU)的上下文中,"port" 和 "GPIO"(General Purpose Input/Output)是相关但不同的概念。下面是它们之间的关系: 1.Port(端口): "Port" 通常是指 MCU 上的一组物理引脚或管脚,这些引脚可以用于输入或输出数字信号。 MCU 的端口通常由一组引脚组成,每个引脚可以用于不同的目的...
so for example,there’s GPIO port A, port B, and so on[1]. The pins on a GPIO port are givenbit numbers, which go from 0 to 15. In ST’sdocumentation, a pin is given by the letter “P”, followed by its portletter and bit number. For instance, “PA4” is GPIO port A, ...
gpio是通用输入输出端口的英文, 是指单一根脚.port是指一组gpio,看单片机的端口规划例如8051就有0~3个port
LED输出反转
Search GpioPort Class GpioPort Members GpioPort Fields GpioPort Fields _debounceMode Field _evtActivity Field _interruptMode Field _isr Field _isrParam Field _resistorMode Field _state Field GpioPort Constructor GpioPort Methods GpioPort Properties GpioPort Events...
GpioPort._interruptMode Field Article 09/07/2011 In this article Syntax Version Information See Also Specifies the transition edge at which an interrupt occurs.Namespace: Microsoft.SPOT.Emulator.Gpio Assembly: Microsoft.SPOT.Emulator (in microsoft.spot.emulator.dll)...
Now in interrupt handler of this external interrupt we have disabled the external interrupt on rising edge with the help of GPIO_PortDisableInterrupts() function. But what we observed is control goes into interrupt handler one more time even after disabling it. However if we ...