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,于是LED也...
behind the scenes, the STM32 microcontroller on your board separates the pins into groups calledGPIO ports. Each GPIO port is given a letter, so for example,there’s GPIO port A, port B, and so on[1]. The pins on a GPIO port are givenbit ...
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...
确认led_pin、led_gpio_port和dht11_pin这些宏的完整和正确的定义: #define led_pin gpio_pin_13:这个宏定义看起来是正确的,它定义了一个名为led_pin的宏,其值为gpio_pin_13。这通常表示LED连接到GPIO端口的第13号引脚。但是,需要确保gpio_pin_13在当前编程环境中是有效的。在STM32等微控制器中,通常会...
I have a doubt regarding the GPIO_port_Init() function. I have configured multiple ports in the configuration and used the GPIO_port_Init() API to initialize all the configured ports. However, I did not get the expected output for different pins of the same port. For example, I have co...
LED输出反转
thus: GPIOPinWrite(GPIO_PORTK_BASE, 0xFF, char); // this will cause Port K to emit the value contained w/in variable char - which should prove very useful... One caution - with 2nd parameter set as shown (0xff) you are vulnerable to unwanted bit outputs from Port K - should...
1. S32K1xx系列MCU详细说明引脚功能特征(PORT和GPIO模块) S32K1xx系列MCU引脚功能由以下两个模块配置和控制: ① PORT --引脚端口功能复用和中断模块; ② GPIO --引脚做GPIO输入输出配置/控制模块; S32K1xx系列MCU引脚信号复用框图如下, 引脚的 PAD
Solved: Every time I create a new S32K144 project I fall into the same trap and I can never remember how to get out of it I am using a FS32K144
InputOutputPort A value indicating that the GPIO port is used for both input and output. This value is currently not available. InputPort A value indicating that the GPIO port is used only for input. None A value indicating that the GPIO port's current mode is unspecified. OutputPort A va...