CC1125: cc1125 rssi valid intrrupt

sudhir mishra

Part Number: CC1125

Hi,

I am Using RSSI1 register for reading the RSSI value, The device take much more time to appear valid rssi value than mention in datasheet and user guide,

This create issue in asynchronous frequency hopping where we required to know the whether the signal is valid or not in with in 1 ms.

Please help.

and also periodically RSSI valid interrupt is raised irrespective of whether signal on this frequency or not, Please help.

why it happen.

I need interrupt only when valid signal on configure frequency.

over 6 years ago

0 sudhir mishra over 6 years ago

Expert 1100 points

Please refer FHSS docs (http://www.ti.com/lit/an/swra482/swra482.pdf ) page number 8, Receiving Node Algorithm.

How i can achieve this, If found valid rssi on frequency where there is no signal.

If i configure f1 and how i can have valid rssi on f0.

0 TER over 6 years ago in reply to sudhir mishra

TI__Guru**** 317180 points

Why do you have a high signal level on a channel where you are not sending? Would you be able to not select channels with high noise since if you are actually sending on this channel you will get poor performance.

0 Keith Barkley over 6 years ago

Guru 42085 points

A receiver is not a spectrum analyzer, it measures all the signals in its passband.

0 sudhir mishra over 6 years ago

Expert 1100 points

Please tell what is the meaning of AGC_CFG0.RSSI_VALID_CNT

0 sudhir mishra over 6 years ago

Expert 1100 points

Hi,

Can i set the noise rssi thresold, like suppose i want to read the rsssi signal which above the -110 level.

Is it is possible.

0 TER over 6 years ago in reply to sudhir mishra

TI__Guru**** 317180 points

Not sure if I understand your last question. Could you elaborate and also cover how this is related to your original question?

0 TER over 6 years ago in reply to TER

TI__Guru**** 317180 points

Marking this thread as resolved since I haven't heard back from you

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CC1125: cc1125 rssi valid intrrupt