小编Lim*_*olt的帖子

我想尝试一个有makefile的程序,但是当我放入makeshell时,错误是:

 g++ -g -DaUNIX -I../../acroname/aInclude -I../../acroname/aSource -Wl,-rpath,.     unix_aLaserDemo_Data/aLaserDemo.o unix_aLaserDemo_Data/acpLaser.o -lpthread -lcrypto -lssl  -o ../../acroname/aBinary/aLaserDemo
/usr/bin/ld: cannot find -lcrypto
collect2: ld returned 1 exit status

这是makefile:

 CC = g++
 CFLAGS = -DaUNIX -I../../acroname/aInclude -I../../acroname/aSource
 LFLAGS = -Wl,-rpath,.
 SRC = ../../acroname/aSource
 BIN = ../../acroname/aBinary
 LIBS = -lpthread -lcrypto -lssl \
 #LIBS = -lpthread\
       -L../../acroname/aBinary -l aUtil -l aIO
 OBJ = unix_aLaserDemo_Data

.PHONY : app
 app : $(OBJ) $(BIN)/aLaserDemo

$(OBJ) :
        mkdir $(OBJ)

$(BIN)/aLaserDemo : $(OBJ)/aLaserDemo.o $(OBJ)/acpLaser.o
        $(CC) -g $(CFLAGS) $(LFLAGS) …

我想通过visual c ++访问串口我从互联网上获取程序但是当我运行程序时,似乎端口无法打开

这是我的程序serialClass.cpp

#ifndef SERIALCLASS_H_INCLUDED
#define SERIALCLASS_H_INCLUDED
#define ARDUINO_WAIT_TIME 2000
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>

class Serial
{
private:
    HANDLE hSerial;
    bool connected;
    COMSTAT status;
    DWORD errors;

public:
    Serial(char *portName);
    //Serial();
    ~Serial();
    int ReadData(char *buffer, unsigned int nbChar);
    bool WriteData(char *buffer, unsigned int nbChar);
    bool IsConnected();
};
#endif // SERIALCLASS_H_INCLUDED

和我的Serial.cpp

#include "SerialClass.h"
 Serial::Serial(char *portName)
 //Serial::Serial()
{
//We're not yet connected
this->connected = false;

//Try to connect to the given port throuh CreateFile
this->hSerial = CreateFile((LPCWSTR) portName,
        GENERIC_READ …

我尝试从传感器读取数据。传感器控制器使用 db9 标头 (com1)，因为我将使用 com1，所以我使用 db9 到 USB 转换器并获取 com 11。

我有程序读取和写入串口，当我使用com1时它可以工作，但是当我更改为com 11时，程序无法打开com，因为它到达了ERROR_FILE_NOT_FOUND

这是我的串口编程程序：

Serial::Serial(char *portName)

{

this->connected = false;

wchar_t wcPort[64];
 size_t convertedChars = 0;
 mbstowcs_s(&convertedChars, wcPort, strlen(portName), portName, _TRUNCATE);

 this->hSerial = CreateFile(wcPort,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
0);

//Check if the connection was successfull
if(this->hSerial==INVALID_HANDLE_VALUE)
{
    //If not success full display an Error
    if(GetLastError()==ERROR_FILE_NOT_FOUND){

        //Print Error if neccessary
        printf("ERROR: Handle was not attached. Reason: %s not available.\n", portName);

    }
    else
    {
        printf("ERROR!!!");
    }
}
else …