CC3220S-LAUNCHXL: What is the range of RSSI i get from CC3220S?

XiaozhongZhang

Expert 1925 points

Part Number: CC3220S-LAUNCHXL
Other Parts Discussed in Thread: CC3220S

I use api sl_WlanRxStatGet to get RSSI when I connect an AP.

what is the range of RSSI I got from stack AvarageMgMntRssi?

over 7 years ago

0 Sarah P over 7 years ago

TI__Mastermind 38980 points

Hi XiaozhongZhang,

AvarageMgMntRssi reports the average RX sensitivity in dBm in a 16-bit signed integer. Please see the WLAN Receiver Characteristics table in the datasheet (www.ti.com/.../cc3220.pdf) for details on the radio's sensitivity.

Best regards,
Sarah

0 XiaozhongZhang over 7 years ago in reply to Sarah P

Expert 1925 points

Hi Sarah:

I find the description in 4.10 WLAN Receiver Characteristics in the pdf you given me. it only present the typ dbm such as 1 DSSS –96.0 and 2 DSSS –94.0, i want the range of rssi?

0 XiaozhongZhang over 7 years ago in reply to XiaozhongZhang

Expert 1925 points

why once some one reply me it said "TI Thinks Resolved"? It is not resolved in my opinion!

0 Sarah P over 7 years ago in reply to XiaozhongZhang

TI__Mastermind 38980 points

Hi XiaozhongZhang,

The typical number represents the low RSSI threshold of the device. With any lower dBm, you would not reliably receive packets (for example, at 1 DSSS, -96 dBm would be far down into the noise floor). Anything higher, you should see. The minimum and maximum are not as relevant as the typical here. For your purposes with the average RSSI value, you would see the typical.

The original poster (you) has buttons on each suggested reply that allow you to accept or reject an answer.

Best regards,
Sarah

0 XiaozhongZhang over 7 years ago in reply to Sarah P

Expert 1925 points

hi Sarah:
So, i have another question. how can I get the current speed (Mbps) which CC3220S talked with AP? Use which API?

0 Sarah P over 7 years ago in reply to XiaozhongZhang

TI__Mastermind 38980 points

Hi XiaozhongZhang,

None of our APIs report that information.

Best regards,
Sarah

0 XiaozhongZhang over 7 years ago in reply to Sarah P

Expert 1925 points

So do work mode? b/g/n also cannot be known?

0 Sarah P over 7 years ago in reply to XiaozhongZhang

TI__Mastermind 38980 points

Hi XiaozhongZhang,

No, the network processor does not report what technology you are using.

Is your application trying to determine the best AP within range to use? sl_NetAppPing() returns a ping report with round times. It is not the same as throughput, but it can be used as an estimate to compare responses.

Best regards,
Sarah

Wi-Fi

Wi-Fi forum

CC3220S-LAUNCHXL: What is the range of RSSI i get from CC3220S?