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Can you please clarify the following ::
1) Carrier sensing time is : around 30 micro sec time. (i.e. to get the o/p of warpmac_carriersense() function ) . This value i got from the DIFS timer used for the carrier sense. Is it right ?
2) What can be the data rate of warp board transmission? (How many bits can be transmitted per sec using warp board )
3) I am putting " updateDuration" for the user_timerA as : 2*(10^7). This updateDuration when we multiply with TIMERCLK_CYCLES_PER_USEC (= 80 micro sec ), we will get 1600Sec = 27 minutes. i.e. user_timerA should expire after 27 minutes. But, when i see it practically, it is taking only 1/2 minute or so to get the timer expiration.
Please clarify why is it happening? ( i am using warp-2, virtex-4 FPGA board with warp version 16.1 )
4) What is the probability of false alarm for CSMA when carrier sense threshold is set to 7000? How can we calculate it?
The above 1), 2) & 3) values i tried to print using Xil_printf statements where i have used %f . But, it did not print the values there. Again , i have used printf statements which is not even transmitting the video itself. (May be because, so many printfs are there, it is not transmitting the video). So, only i am requesting to get help from you.
Please clarify my doubts sir.
With best regards,
kalpana
Last edited by kalpana (2012-Oct-24 09:41:26)
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