[mc1322x] Access to LQI

Clive Stubbings cstl at xentech.co.uk
Thu Jun 10 06:44:11 EDT 2010


Hi,

I'm looking to get access to the Rx Link Quality Information. The Freescale code 
seems to have a function MLMELinkQuality() that claims to return

   DAGC_RSSI =   Cal_factor_dB
             - (LNA_min_gain_dB + lna_state*(LNA_max_gain_dB-LNA_min_gain_dB))
             + (IFA_max_gain_dB - 3*ifa_state)
             + rx_dagc_gain_state

That seems quite convoluted, but if it provides an indication of link 
quality/signal strength that will do me fine..

However, all that does is call PhyPlmeGetLQI(). Needless to say PhyPlmeGetLQI() 
seems to be in the MC1322x.a and I've not found any documentation on how to 
access that information.

Has anyone looked at this, or can anyone give me any pointers on how to track 
it down?

Thanks
Clive




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