pc端串口发送字符串

要在PC端通过串口发送字符串，需要使用串口通讯软件，并按照以下步骤进行：

1. 打开串口通讯软件，选择要使用的串口和波特率等参数。
2. 在发送缓存区中输入要发送的字符串。
3. 点击发送按钮，将字符串发送到串口。
4. 等待串口接收到字符串，并进行相应的处理。

下面是一个使用Tera Term和Python发送字符串的示例：

1. 打开Tera Term，选择要使用的串口和波特率等参数，并打开串口连接。
2. 在发送缓存区中输入以下Python代码：

import serial

ser = serial.Serial('COM1', 9600)  # 打开COM1串口，波特率为9600
ser.write(b'Hello, World!')        # 发送字符串
ser.close()                        # 关闭串口

3. 点击发送按钮，将字符串发送到串口。
4. 在51单片机或其他设备上接收串口数据，并进行相应的处理。

在实际应用中，还需要根据实际情况进行调整，例如修改串口参数、更改发送缓存区大小等参数。同时，也需要注意串口接收和发送时序，避免数据的丢失或错误。

相关问题

51开发板如何把pc端串口发送的字符串储存在at24c02

首先，您需要在51开发板上连接一个AT24C02 EEPROM。然后，您需要编写51单片机的程序以实现串口通信和EEPROM的读写操作。

以下是实现串口通信和EEPROM读写操作的一些基本步骤：

1. 配置串口通信参数，包括波特率、数据位、停止位和校验位等。

2. 在程序中实现串口接收中断，以便在接收到PC端发送的字符串时能够及时处理。

3. 在接收到PC端发送的字符串后，将其存储到一个缓冲区中，然后将缓冲区中的数据写入EEPROM。

4. 实现EEPROM的读取操作，以便在需要时能够读取存储的字符串。

下面是一个简单的示例程序，可以实现串口通信和EEPROM读写操作：

#include <reg51.h>

#define EEPROM_ADDR 0xA0

sbit SDA = P2^0;
sbit SCL = P2^1;

void delay(int n)
{
    int i;
    while(n--)
    {
        for(i=0; i<100; i++);
    }
}

void i2c_start()
{
    SDA = 1;
    SCL = 1;
    delay(5);
    SDA = 0;
    delay(5);
    SCL = 0;
}

void i2c_stop()
{
    SDA = 0;
    SCL = 1;
    delay(5);
    SDA = 1;
    delay(5);
}

void i2c_send(unsigned char dat)
{
    unsigned char i;
    for(i=0; i<8; i++)
    {
        SDA = (dat & 0x80) >> 7;
        dat <<= 1;
        SCL = 1;
        delay(5);
        SCL = 0;
        delay(5);
    }
    SDA = 1;
    SCL = 1;
    delay(5);
    SCL = 0;
}

unsigned char i2c_recv()
{
    unsigned char i, dat = 0;
    SDA = 1;
    for(i=0; i<8; i++)
    {
        SCL = 1;
        delay(5);
        dat = (dat << 1) | SDA;
        SCL = 0;
        delay(5);
    }
    return dat;
}

void eeprom_write(unsigned char addr, unsigned char dat)
{
    i2c_start();
    i2c_send(EEPROM_ADDR);
    i2c_send(addr);
    i2c_send(dat);
    i2c_stop();
    delay(10);
}

unsigned char eeprom_read(unsigned char addr)
{
    unsigned char dat;
    i2c_start();
    i2c_send(EEPROM_ADDR);
    i2c_send(addr);
    i2c_start();
    i2c_send(EEPROM_ADDR | 0x01);
    dat = i2c_recv();
    i2c_stop();
    return dat;
}

void uart_init()
{
    TMOD = 0x20;
    TH1 = 0xFD;
    TL1 = 0xFD;
    TR1 = 1;
    SM0 = 0;
    SM1 = 1;
    REN = 1;
    EA = 1;
    ES = 1;
}

void uart_send(unsigned char dat)
{
    SBUF = dat;
    while(!TI);
    TI = 0;
}

void uart_recv() interrupt 4
{
    static unsigned char buf[32];
    static unsigned char idx = 0;
    unsigned char ch = SBUF;
    if(ch == '\r')
    {
        buf[idx] = '\0';
        for(unsigned char i=0; i<idx; i++)
        {
            eeprom_write(i, buf[i]);
        }
        uart_send('\n');
        idx = 0;
    }
    else
    {
        buf[idx++] = ch;
    }
}

void main()
{
    uart_init();
    while(1);
}

这个程序实现了串口通信和EEPROM的读写操作。当接收到PC端发送的字符串后，程序会将其存储到EEPROM中。当需要读取存储的字符串时，可以使用`eeprom_read()`函数来读取指定地址上的数据。

条件1.使用stm32f103c8t6,c语言编程条件2.使用PA1,PA2,PA3,PA4,PA5，PA6配置成上拉输入,根据6个引脚的电平高低生成。例如000000表示6引脚电平全为0,并使用串口1以字符串形式发送该二进制数到PC端。统计该二进制数中0的次数记作zeo_count;条件3.串口1使用中断接收数据,结束符0X0D,0X0A.条件4.条件2中的zeo_count与下一次条件2中的zeo_count比较,若前一次zeo_count大于后一次zeo_count;则打开蜂鸣器条件5.若串口接收字符串为"1",关闭蜂鸣器; 若串口接收字符串为"2",打开蜂鸣器;若串口接收字符串为"3"且条件2中zeo_count=1,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收字符串为"4"且条件2中zeo_count=2,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收字符串为"5"且条件2中zeo_count=3,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收字符串为"6"且条件2中zeo_count=4,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收字符串为"7"且条件2中zeo_count=5,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收字符串为"8"且条件2中zeo_count=6,则发送字符串"拿取数量正确",否则发送拿取数量异常;若串口接收为空,则进入条件4;条件6.配置PA11引脚为下拉输入,读取PA11电平为高,进入条件5;若PA11电平为低,进入条件4

我可以回答这个问题。以下是代码：

#include "stm32f10x.h"
#include <stdio.h>
#include <string.h>

#define USART1_DR_Base 0x40013804

void USART1_Init(void);
void GPIO_Configuration(void);
void NVIC_Configuration(void);
void USART1_SendString(char* s);
void USART1_IRQHandler(void);

int main(void)
{
    GPIO_Configuration();
    USART1_Init();
    NVIC_Configuration();

    uint8_t last_zero_count = 0;
    uint8_t zero_count = 0;
    uint8_t buzzer_on = 0;

    while (1)
    {
        // Read the input pins
        uint8_t pin1 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_1);
        uint8_t pin2 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2);
        uint8_t pin3 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_3);
        uint8_t pin4 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_4);
        uint8_t pin5 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_5);
        uint8_t pin6 = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_6);

        // Convert the input pins to a binary string
        char binary[7];
        sprintf(binary, "%d%d%d%d%d%d", pin1, pin2, pin3, pin4, pin5, pin6);

        // Count the number of zeros in the binary string
        zero_count = 0;
        for (int i = 0; i < strlen(binary); i++)
        {
            if (binary[i] == '0')
            {
                zero_count++;
            }
        }

        // Send the binary string over USART1
        USART1_SendString(binary);

        // Compare the zero count to the last zero count
        if (zero_count < last_zero_count)
        {
            buzzer_on = 1;
        }
        last_zero_count = zero_count;

        // Wait for USART1 to receive a string
        while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);

        // Read the received string
        char received[2];
        received[0] = USART_ReceiveData(USART1);
        received[1] = '\0';

        // Handle the received string
        if (strcmp(received, "1") == 0)
        {
            buzzer_on = 0;
        }
        else if (strcmp(received, "2") == 0)
        {
            buzzer_on = 1;
        }
        else if (strcmp(received, "3") == 0 && zero_count == 1)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (strcmp(received, "4") == 0 && zero_count == 2)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (strcmp(received, "5") == 0 && zero_count == 3)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (strcmp(received, "6") == 0 && zero_count == 4)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (strcmp(received, "7") == 0 && zero_count == 5)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (strcmp(received, "8") == 0 && zero_count == 6)
        {
            USART1_SendString("拿取数量正确");
        }
        else if (received[0] == '\r' || received[0] == '\n')
        {
            // Do nothing
        }
        else
        {
            USART1_SendString("拿取数量异常");
        }

        // Turn the buzzer on or off
        if (buzzer_on)
        {
            GPIO_SetBits(GPIOB, GPIO_Pin_0);
        }
        else
        {
            GPIO_ResetBits(GPIOB, GPIO_Pin_0);
        }
    }
}

void GPIO_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;

    // Enable GPIOA and GPIOB clock
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);

    // Configure PA1, PA2, PA3, PA4, PA5, PA6 as input with pull-up
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Configure PA11 as input with pull-down
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Configure PB0 as output
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
}

void USART1_Init(void)
{
    USART_InitTypeDef USART_InitStructure;

    // Enable USART1 clock
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

    // Configure USART1 TX and RX pins
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    // Configure USART1
    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(USART1, &USART_InitStructure);

    // Enable USART1
    USART_Cmd(USART1, ENABLE);
}

void NVIC_Configuration(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;

    // Configure the USART1 interrupt
    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);

    // Enable the USART1 receive interrupt
    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
}

void USART1_SendString(char* s)
{
    while (*s)
    {
        while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
        USART_SendData(USART1, *s++);
    }
}

void USART1_IRQHandler(void)
{
    if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
    {
        USART_ClearITPendingBit(USART1, USART_IT_RXNE);
    }
}