CadClientInterface.powerUp() hangs while connecting smart card using Serial Port

Question

I am trying to connect to my smart card using serial port using below code:

String port = "COM1"; // serial port
CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier(port);

String appname = "CadClient";
int timeout = 30000;

CommPort commPort = portId.open(appname, timeout);              
InputStream is = commPort.getInputStream(); 
OutputStream os = commPort.getOutputStream();

cad = CadDevice.getCadClientInstance(CadDevice.PROTOCOL_T1, is, os);

//...hangs here for unlimited time
cad.powerUp();

Any help why it stuck at powerUp(). Thanks

simplify · Answer 1 · 2018-05-21T05:50:52.533

2

Go to your device properties and check the "Do not open APDU console" checkbox.

This should be something like this :

edited May 21 '18 at 05:50

answered May 20 '18 at 19:09

simplify

109
11

Thanks for your input however i dont see this option. Can you please elaborate more ? – naeemgik May 21 '18 at 05:31
What IDE do you use ? And what simulator? – simplify May 21 '18 at 05:38
i am using eclipse IDE and using physical device: omni smart card – naeemgik May 21 '18 at 05:42
Does your device appear in IDE ? ( I edited my answer with some pictures). – simplify May 21 '18 at 05:51
Thanks for your effort however this option only appears for simulator NOT actual device. – naeemgik May 21 '18 at 06:19

score 0 · Answer 2 · answered May 18 '18 at 14:18

0

The most common reason for it to hang is that the card is not answering to reset i.e. ATR is not received from the card. This is done on powerUP().

This could be due to non-open port or port being used by some other APDU client.

answered May 18 '18 at 14:18

hsg

656
4
10

I assume the port is opened by cadClient only once, however how to make sure for this? – naeemgik May 21 '18 at 05:43
I believe that PORT is open (for service) by some cad device or running simulator. Your code here is a client to connect to that port and thereby, sending the APDU's to the running service. – hsg May 21 '18 at 12:33
so what you suggest please? – naeemgik May 24 '18 at 04:15

CadClientInterface.powerUp() hangs while connecting smart card using Serial Port

2 Answers2