Cannot receive data from 3d printer but sending it successfully

Hello, im trying to build a simple app as a learning project but im running some issues. So im successfully connecting through serial port and sending data to my printer (tried to send G28 and it homes) but when i try to read data for example i sent M503 i receive nothing. So my question is could it be that i need to set Databits, StopBit , Parity etc , if so where can i find them in my firmware. Im using Marlin 2.1.2 and Bigtreetech SKR 1.3. Thank you

Edited 1 time(s). Last edit at 09/05/2023 09:04AM by mile.

I don't see an event handler to receive data

take a look at this
[www.c-sharpcorner.com]

public string Read()
{
Thread.Sleep(1000);
serialPort.ReadTimeout = 5000;
try
{
if (serialPort.IsOpen)
{
string data = serialPort.ReadLine();
DataRead?.Invoke(this, data);
return data;
}
return null;
}
catch (TimeoutException)
{
Console.WriteLine("Timeout: No data received within the specified time.");
return null;
}
catch (Exception ex)
{
// Handle the exception (e.g., log or display an error message)
Console.WriteLine($"Error reading from serial port: {ex.Message}");
ErrorOccurred?.Invoke(this, ex.Message);
return null;
}
}

I can't receive it just with this method ?

the issue you're facing could indeed be related to the configuration of the serial port settings such as Databits, StopBits, Parity, and Baud Rate. In Marlin firmware, these settings are typically defined in the Configuration.h file.







192.168.100.1 192.168.1.1

Edited 1 time(s). Last edit at 10/08/2023 12:19PM by rimase.