How to use QT to develop Wi-Fi ping application for am37x-evm board?

Niyazi Toros

Hi,

I have an am37x-evm board and Sitara SDK ("downloads.ti.com/.../").

I use QT to create a small application and I am able to connect Wi-Fi hot-spot. I connect my am37x-evm board using putty. In terminal window I can use ping command to ping google. I also created a Ping DialogWindow in QT as shown below. At the moment when I click the ping button using below code the ping operation is works.

My problem is that I don't know how to use below code or similar to make a ping operation GUI window. Does anyone knows how to use QT to develop Wi-Fi ping application for am37x-evm board?

I contacted to QT form. And they advice me to come back here ("TI E2E™ Community") due to Sitara SDK. In this link ("e2e.ti.com/.../1731147 Mr. Biser Gatchev-XID advice me to get help from "wireless_connectivity" form.

Kind Regards

Code:

// WIFI PING TEST BUTTON 
void DialogWIFI::on_PushButtonPing_clicked()
{
    system("ping -c 10 www.google.com > ping.txt");
}

Window:

over 8 years ago

0 Joseph Gigi over 8 years ago

TI__Guru* 85400 points

Hi,

Can you please clarify which SDK release are you using? WiFi GUI option is not available in any of the later SDKs.
Also, I'm not very clear about your question - "make a ping operation GUI window" --> Isn't this purely QT related? How is this related to WLAN?

Regards,
Gigi Joseph.

0 Niyazi Toros over 8 years ago in reply to Joseph Gigi

Intellectual 480 points

Hi,

I explaind in e2e.ti.com/.../1731147 link. When I use putty to connect my am37x-evm board I can use ping command as shown below.

_____ _____ _ _
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_|
|___| |___|

Arago Project http://arago-project.org am37x-evm ttyO2

Arago 2013.02 am37x-evm ttyO2

am37x-evm login: root
Password:
root@am37x-evm:~# gnome-terminal -x sh -c \" ping www.google.com \"
-sh: gnome-terminal: not found
root@am37x-evm:~# ping www.google.com
PING www.google.com (74.125.136.147): 56 data bytes
64 bytes from 74.125.136.147: seq=0 ttl=46 time=3068.082 ms
64 bytes from 74.125.136.147: seq=1 ttl=46 time=2214.051 ms
64 bytes from 74.125.136.147: seq=2 ttl=46 time=1481.413 ms
64 bytes from 74.125.136.147: seq=3 ttl=46 time=2109.458 ms
64 bytes from 74.125.136.147: seq=4 ttl=46 time=1377.098 ms
^C
--- www.google.com ping statistics ---
6 packets transmitted, 5 packets received, 16% packet loss
round-trip min/avg/max = 1377.098/2050.020/3068.082 ms
root@am37x-evm:~#

I use code as;

system("ping -c 10 www.google.com > ping.txt"); and seems its working.

In my QT appas shown below for the am37x-evm I get an error that says ping: invalid number 10.

void DialogWIFI::on_PushButtonPing_clicked()
{
//system("ping -c 10 www.google.com > ping.txt");

QString m_sHostName;
QString m_parameter;

// Clear text
ui->TextEditResult->clear();

// Create string command and argument
m_sHostName = ui->LineEditWebPage->text();
m_parameter = "-c";

ui->TextEditResult->append(m_sHostName);
ui->TextEditResult->append(m_parameter);

// Create QProcess object
proc = new QProcess();
proc->start("ping", QStringList() << m_parameter << QString(m_sHostName));

// Show output
connect(proc, SIGNAL(readyReadStandardOutput()), this, SLOT(rightMessage()));
connect(proc, SIGNAL(readyReadStandardError()), this, SLOT(wrongMessage()));

}

// Show right message
void DialogWIFI::rightMessage()
{
QByteArray strdata = proc->readAllStandardOutput();
ui->TextEditResult->setTextColor(Qt::black);
ui->TextEditResult->append(strdata);
}

// Show wrong message
void DialogWIFI::wrongMessage()
{
QByteArray strdata = proc->readAllStandardError();
ui->TextEditResult->setTextColor(Qt::red);
ui->TextEditResult->append(strdata);
}

Kind Regards,

0 Niyazi Toros over 8 years ago in reply to Niyazi Toros

Intellectual 480 points

Hi,

Here is the solution. My problem was TI SDK example didin't show how to use system command when using QT and C++.
I was looking the line "proc->start("ping", QStringList() << "-c" << "3" << QString(m_sHostName));" that is the solution.

Kind Regards.

// WIFI PING TEST BUTTON
void DialogWIFI::on_PushButtonPing_clicked()
{
QString m_sHostName;
QString m_sHostNameMessage;

// Clear text
ui->TextEditResult->clear();

// Create string command and argument
m_sHostNameMessage = ui->LineEditHostName->text();
m_sHostNameMessage = m_sHostNameMessage.append(" ping işlemi başlatıldı...");

m_sHostName = ui->LineEditHostName->text();

ui->TextEditResult->setTextColor(Qt::white);
ui->TextEditResult->append(m_sHostName);
ui->TextEditResult->append("<br>");

// Create QProcess object
proc = new QProcess();
proc->start("ping", QStringList() << "-c" << "3" << QString(m_sHostName));

// Show output
connect(proc, SIGNAL(readyReadStandardOutput()), this, SLOT(rightMessage()));
connect(proc, SIGNAL(readyReadStandardError()), this, SLOT(wrongMessage()));

ui->TextEditResult->setTextColor(Qt::white);
QCoreApplication::processEvents();
}

// Show right message
void DialogWIFI::rightMessage()
{
QByteArray strdata = proc->readAllStandardOutput();
strdata = strdata.simplified();
strdata = strdata.trimmed();

ui->TextEditResult->setTextColor(Qt::white);
ui->TextEditResult->append(strdata);
ui->TextEditResult->append("<br>");
QCoreApplication::processEvents();
}

// Show wrong message
void DialogWIFI::wrongMessage()
{
QByteArray strdata = proc->readAllStandardError();
ui->TextEditResult->setTextColor(Qt::red);
ui->TextEditResult->append(strdata);
QCoreApplication::processEvents();
}

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How to use QT to develop Wi-Fi ping application for am37x-evm board?