This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

How to translate the result from register RSSISAMPLE to the real RSSI ?

Hi, Thank you for your kindly help.

I have get the result from the register RSSISAMPLE. The result I get from RSSISAMPLE is like this:0x00000050. As you known, the result should be a negative number. So there must be a formula or some other operation to translate it into the final result. But I haven't find any document about that. So please reply soon.

Many thans

Parents

0 user2109 over 12 years ago

This is pretty clearly stated in the nRF51 Reference Manual: "The value of this register is read as a positive value while the actual received signal strength is a negative value. Actual received signal strength is as follows: Received signal strength = -A [dBm]"

This means that your 0x50 = 80, to be read as -80 dBm.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel
0 user2109 over 12 years ago in reply to user2109

The way you do it now, you wait for the packet to be completely received, and then start the RSSI measurement. This will obviously not measure the RSSI while the packet is received, which is most likely what you want. To do such measurement, I'd recommend using the shortcut between address match and RSSI start, so that RSSI measurement is started once an address is matched.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Reply

0 user2109 over 12 years ago in reply to user2109

The way you do it now, you wait for the packet to be completely received, and then start the RSSI measurement. This will obviously not measure the RSSI while the packet is received, which is most likely what you want. To do such measurement, I'd recommend using the shortcut between address match and RSSI start, so that RSSI measurement is started once an address is matched.
Cancel
Vote Up 0 Vote Down

Sign in to reply

Verify Answer

Cancel

Children

No Data