Can somebody getme a code to send and receive data to serial port? C++

Question

I need a simple program on c++ i need send a bit and receive one. Is for connect a pc to microcontroler pic16f84a.

Answer 1

//Do you have your attempts?? please attach then

Answer 2

Yes, you can use that code for opening comport on Windows. but you must append a check of serialHandle for successful opening.

Use WriteFile function to write number to comport and
ReadFile to read number.

Answer 3

The code is platform specific.
The general algorithm is as follows:
1. Get handle by Opening the com port as regular file using its OS-specific name (COM1 on windows or /dev/ttyS1 on linux...).
2. Setup com port (baudrate, parity...) by calling OS-specific API on the handle.
3. Read and write to comport handle using file read/write functions.
4. Close the handle.

Usually work with comport is performed in a separate thread

Answer 4

A web search may give you a solution.

Answer 5

No man

Answer 6

I dont have then

Answer 7

Could i use this code?

#include <windows.h> /* ... */ // Open serial port HANDLE serialHandle;

serialHandle = CreateFile("\\\\.\\COM1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);

// Do some basic settings DCB serialParams = { 0 };

serialParams.DCBlength = sizeof(serialParams);

GetCommState(serialHandle, &serialParams);

serialParams.BaudRate = baudrate;

serialParams.ByteSize = byteSize;

serialParams.StopBits = stopBits;
serialParams.Parity = parity; SetCommState(serialHandle, &serialParams);

Answer 8

For example I need send number one and receive 2

Answer 9

Helpme please

Answer 10

I need to open the serial or com port and send a number one and then receive a number 2 from that same port