Problems to stop a process with a pushbutton. | Telit Cinterion IoT Developer Community
October 29, 2014 - 5:19pm, 2636 views
I have the TC65 terminal controlling two buttons through GPIO ports.One is connected into GPIO4 and the other into GPIO6
^SCPOL: 5,1
^SCPOL: 5,0
^SCPOL: 3,1
^SCPOL: 3,0
The application is simple
1) If the button --GPIO4-- is pushed the count with one second delay should be initiated and present the result
which must be multiples of a reference value.
2) The count must stop when the button GPIO6 is pressed and shows the final value of the count.
The main problem:
I can 't stop the process by pressing the button controlled by the port GPIO6.
The hardware if working OK.The main application is controlled by a timer that stops it after 30 seconds.
Any suggestion?
Regards,
German F
public class ATList implements ATCommandListener
{
public void RINGChanged(boolean arg0){}
public void DCDChanged(boolean arg0) {}
public void CONNChanged(boolean arg0) {}
public void DSRChanged(boolean arg0) {}
public void ATEvent(String arg0)
{
boolean state1=false;
boolean state2=false;
int ficha=3;
int cont=0;
int credits=0;
while (true) {
if ((arg0.indexOf("3,1")>0) || (arg0.indexOf("3,0")>0))
state1=checkInt(3);
if ((arg0.indexOf("5,1")>0) || (arg0.indexOf("5,0")>0))
state2=checkInt(5);
if (state1=true){
try {
Thread.sleep(1000);
cont++;
if(cont%ficha==0){
credits=cont;
System.out.println("Parcial credits:" + credits);
}
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}else if (state2=true)
{System.out.println("Total Credits:" + credits);
break;
}
}
}
String sendAT(String str)
{
try
{
str = atc.send(str + "\r".toUpperCase());
}
catch (ATCommandFailedException e)
{
} catch (IllegalArgumentException e) {
} catch (IllegalStateException e) {
}
return str;
}
boolean checkInt(int NumGPIO)
{
String answerButton;
boolean Flag=false;
answerButton = sendAT("at^sgio="+ NumGPIO);
if ((answerButton.indexOf("^SGIO:1")>0)&&(answerButton.indexOf("^SGIO:0")>0)) {
Flag=true;
}
return Flag;
}
Oct 30 2014 - 11:40am
Hello,
The main problem is that when ATEvent(String arg0) method is called it may never finish.
When you implement a listener your code should leave the listener context (ATEvent(String arg0) method) as soon as possible. Please see also the API.
If you need longer processing or starting another activity please consider running a new thread for that. While the callback method does not return it cannot be called again if another GPIO button is pressed.
And in your code the while(true) loop will probably never finish because the arg0 argument will never change.
Please also verify the condition in the checkInt(int NumGPIO) method - the flag is set to true only if the reply contains both ^SGIO:1 and ^SGIO:0 strings.
Best regards,
Bartłomiej
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