qt rfid serialport

[veysel.olgun]

hello can i a question about serialport in qt

[Edit ~aha_1980: Moved to general & desktop]

[aha_1980]

@veysel.olgun Sure you can - which question do you have?

[veysel.olgun]

void MainWindow::on_all_sector_authentication_clicked()
{
   QString x1,y1;
    x1=ui->combo_key->currentText();
    y1=ui->combo_type->currentText();
    int a1,b1;

    if(x1=="A")
    {
        a1=0;
    }
    else if(x1=="B")
    {
        a1=4;
    }
    if(y1=="0")
    {
        b1=0;
    }
    else if(y1=="1")
    {
        b1=1;
    }

    QByteArray data;

    data[8]=a1;

    data[9]=b1;
   QString command="DF78";

    QString command2="B0";
       data[10]=0X4;


seriport->write(paketle(command,command2,data));
QByteArray data_read;
data_read[8]=0X10;

QString command_read="DF78";
QString command2_read="A5";
seriport->write(paketle(command_read,command2_read,data_read));     / / send data to card reader and after take a response but it is now coming
}

this is my code, i have a rfid card reader i send a code to authenticate after that i send to data_read to read a specific block (data_read[8]=0X10) BUT it is not work

[koahnig: added code tags]

[SGaist]

Hi and welcome to devnet,

You have to be more precise than that. it is no work doesn't say much.

What are you expecting ?
What are you getting ?
What version of Qt are you using ?
What platform are you running ?
Did you connect the readyRead signal ?
Did you check that your RFID reader does indeed answer to other commands ?

[veysel.olgun]

@SGaist said in qt rfid serialport:

indeed

first of all thank you to answer,

i am expecting to authentication all of sectors in my mifare card with one push button after that to read all of blocks with one push button

if i send only this seriport->write(paketle(command,command2,data)); it is work and i am getting response from rfid card reader but if i send this, it is no send to response to me

for(int i=0;i<16;i++)
{
QByteArray data;

data[8]=a1; //load keyA

data[9]=b1; //load key type 

QString command="DF78"; mifare command
data[10]=i; // this is saying autenticate to i. sector
}

i am using Qt creator 4.5.1

i am using windows10

i am using readyread signal

my rfid card reader working correctly but if i send data with loop it sending data to cardreader but card reader does not send response to me

here what i am saying

for(int i=0;i<16;i++)
{
QByteArray data;

data[8]=a1; //load keyA

data[9]=b1; //load key type 

QString command="DF78"; mifare command

QString command2="B0"; authentication command
   data[10]=i; // 

}

I hope, I could express it correctly.

thank you

[SGaist]

What answer are you expecting ?

[veysel.olgun]

this is if i do click "authenticate" button 3 times it give me this datas but i want to click "be authentication all sectors" button just one time, and be authenticate all sectors(i mean sector0,sector1.....sector14,sector15

[SGaist]

Then you should send the command one after the other only when the last one has finished.

[veysel.olgun]

actually i try but no work if i click "authenticate " button many times it send to me data (spin box is 1 and i click authenticate button and i am taking data, spin box is 2 and i click authenticate button and i am taking data...)

[SGaist]

That's the idea of my suggestion: trigger the next command only when you received the answer to the last one, not in a tight loop.

[veysel.olgun]

thank you i will try this i hope it works that time

[RAJALINGAM]

@veysel-olgun
sir, please share rfid coding