1 Jan 2007 07:29
clock but in tossim?
roy liu ^-^ <happyaspen <at> sjtu.edu.cn>
2007-01-01 06:29:49 GMT
2007-01-01 06:29:49 GMT
hi ,everyone:
My tinyos version is 1.1.15.I want to have a timer with the period of 1 ms in tossim simulator.
However it seems the timer module could not provide such short period, so I directly use HPLClock module of
HPLclock.nc and call the command Clock.setRate(interval,scale).The parameters are interval=32,scale=1.
It did fired every time,but the interval of tos_time was not a constant.It has several different interval
time(converting into tos_time): 28182 ,9272,5368 and some others.
What's the problem with my disposal? Any advice will be apprecaited.
ps:
my code segment:
command result_t MACControl.init()
{
.......
// initialize and start clock
call Clock.setRate(32,1) ;
}
uint_32t clocktime;
event result_t clock.fire(){
clocktime++;
dbg(DBG_USR1,"clock.fire has been called at
clocktime=%i,tos_state.tos_time=%i\n",clocktime,tos_state.tos_time);
}
DBG information:
0: clock.fire has been called at clockttime=1 . tos_state.tos_time=19160787..
0: clock.fire has been called at clockttime=2 . tos_state.tos_time=19188969..
0: clock.fire has been called at clockttime=3 . tos_state.tos_time=19217151..
0: clock.fire has been called at clockttime=4 . tos_state.tos_time=19245333..
0: clock.fire has been called at clockttime=5 . tos_state.tos_time=19273515..
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