rxSetupTime - How to obtain the value from the datasheet

[Norberto - IT]

In the OMNeT++ the rxSetupTime is the Time to setup radio to reception state.

 

For the CC2420 we have  rxSetupTime = 0.001792 s;

 

For the CC1100 we have  rxSetupTime = 0.00108 s;

 

How can we get this values form the datasheets?

What variables are used to get the previous values?

 

Norberto_IT

[Daniel Pfefferkorn]

Hi Norbert,

in MiXiM those times are called/defined a litte more precisely:
timeSleepToRX = 0.00108 s;
timeSleepToTX = 0.00108 s;

If you check the data sheet for CC1100
(http://www.ti.com/lit/ds/symlink/cc1100.pdf) on pp. 14-16, you will
find different time values. Those are specified as delay times between
hardware state transitions, for example from IDLE to RX or TX.

When in sleep ideally everything has been switched off, meaning that
a) the Power-regulator has to start & settle
b) the crystal oscillator has to start & settle
c) the RX state has to be entered including (requires calibration of
frequency synthesizer)

a) ? (max 5 ms)
b) 150 us
c) 809 us (88 us + 721 us)
-------------------------------
959 us + x us
-------------------------------
-------------------------------

The whole power-up sequence is described a little more detailed on p. 43.

Hope that this helps a little bit.

Regards,
Daniel

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[Norberto - IT]

Hi Daniel, your explanation helps very much,
Can you also explain to me how we can obtained the values for the CC2420?

-----Mensagem original-----
De: omn...@googlegroups.com [mailto:omn...@googlegroups.com] Em nome de
Daniel Pfefferkorn
Enviada: sexta-feira, 27 de Janeiro de 2012 13:31
Para: omn...@googlegroups.com
Assunto: Re: [Omnetpp-l] rxSetupTime - How to obtain the value from the
datasheet