Initiate a timer

Question

I'm a new on programming JavaCard, and have a question about how to use the timer. I want to make an application that is running once every hour.
How do set the timer value the first time, when I don't want to use a menu? I have tried to set the timer in the installation of the applet, but I get errors, so I guess that is not possible to use the proactive handler at that time?
Please help!!!

Answer 1

The following should start a timer (give or take a few syntax errors):
private static final byte START_TIMER = (byte) 0x00;
private byte timerId = 1;
// Initialize the command
proHdlr.init(PRO_CMD_TIMER_MANAGEMENT, START_TIMER, DEV_ID_ME);
// add the timer id
proHdlr.appendTLV((byte)(TAG_TIMER_IDENTIFIER | TAG_SET_CR), timerId);
// add timer value
proHdlr.appendTLV((byte)(TAG_TIMER_VALUE | TAG_SET_CR), timerData, (short)0, (short)3);
// Start proactive session with the mobile
result = proHdlr.send();
With timerData being the byte[] array containing the timer time-out value.
That being said, I launch this from a menu... I actually wouldn't know where to put it by default. I suppose you could use the profile download (which really starts the applet, right?) as some sort of trigger, but this part is best answered by someone else.
Instrumental for this to work is of course that the mobile (*) supports timers, because it is the mobile who will generate the time-out event.
Jimbo.
(*) "Mobile", or more generically, the "Card Acceptance Device"