#define led3 GPIOD

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- *1* *2* *3* [再造STM32---第九部分：GPIO输出—使用固件库点亮LED](https://blog.csdn.net/qq_38351824/article/details/89791754)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
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相关问题

把下列程序改成stc89c52rc单片机的c语言程序“#include "stm8s.h" #include "stdlib.h" #define LED_GPIO_PORT (GPIOC) #define LED_GPIO_PINS (GPIO_PIN_7) #define UART_GPIO_PORT (GPIOD) #define UART_GPIO_PINS (GPIO_PIN_4) //485控制脚 #define UARTTX_GPIO_PINS (GPIO_

把下列程序改成stc89c52rc单片机的c语言程序：

#include "stc89c52.h"
#include <stdlib.h>

#define LED_GPIO_PORT    P2
#define LED_GPIO_PINS    0x01
#define UART_GPIO_PORT   P1
#define UART_GPIO_PINS   0x10
#define UARTTX_GPIO_PINS 0x20

void delay(unsigned int n)
{
    unsigned int i;
    for(i = 0; i < n; i++);
}

void InitUART()
{
    TMOD |= 0x20;
    SCON = 0x50;
    TH1 = 0xfd;
    TL1 = 0xfd;
    PCON = 0x00;
    TR1 = 1;
}

void UARTSendChar(unsigned char ch)
{
    SBUF = ch;
    while(!TI);
    TI = 0;
}

void main()
{
    InitUART();
    LED_GPIO_PORT = 0x00;

    while(1)
    {
        UARTSendChar('H');
        delay(50000);
        UARTSendChar('e');
        delay(50000);
        UARTSendChar('l');
        delay(50000);
        UARTSendChar('l');
        delay(50000);
        UARTSendChar('o');
        delay(50000);
        UARTSendChar('\n');
        LED_GPIO_PORT ^= LED_GPIO_PINS;
    }
}

stm32按键控制led

以下是基于STM32的按键控制LED的代码示例：

#include "stm32f4xx.h"

#define LED_PIN GPIO_Pin_12
#define LED_PORT GPIOD

#define BUTTON_PIN GPIO_Pin_0
#define BUTTON_PORT GPIOA

int main(void)
{
  // Enable clock for GPIOD and GPIOA
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD | RCC_AHB1Periph_GPIOA, ENABLE);

  // Configure LED pin as output
  GPIO_InitTypeDef GPIO_InitStructure;
  GPIO_InitStructure.GPIO_Pin = LED_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(LED_PORT, &GPIO_InitStructure);

  // Configure button pin as input
  GPIO_InitStructure.GPIO_Pin = BUTTON_PIN;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
  GPIO_Init(BUTTON_PORT, &GPIO_InitStructure);

  while (1)
  {
    // If button is pressed, turn on LED
    if (GPIO_ReadInputDataBit(BUTTON_PORT, BUTTON_PIN) == Bit_SET)
    {
      GPIO_SetBits(LED_PORT, LED_PIN);
    }
    else
    {
      GPIO_ResetBits(LED_PORT, LED_PIN);
    }
  }
}

在这个示例中，我们使用了GPIO库来初始化GPIO口。我们首先启用了GPIOD和GPIOA的时钟，并将LED引脚配置为输出和按键引脚配置为输入。在while循环中，我们检测按键引脚的状态。如果它被按下，我们将LED引脚置为高电平，否则我们将LED引脚置为低电平。