CC1352R: TI154STACK-3903 issue fixed

Marijn Achterkamp

Expert 1460 points

Part Number: CC1352R

Hello,

The release notes from the 6.10 SDK show TI154STACK-3903 as a fixed issue.

Can you explain what exactly was the issue?

best regards,

Marijn

over 3 years ago

0 Marie H over 3 years ago

TI__Guru* 82061 points

Hi Marjin,

TI154STACK-3903 Reduced beacon interval offset in beacon mode.

The offset mentioned is the offset between when a beacon should be sent according to the beacon interval, and when it is actually transmitted over the air. For SDK 6.10 this offset is smaller than it used to be. (10s of us instead of 100s of us.)

Cheers,

Marie H

0 Marijn Achterkamp over 3 years ago in reply to Marie H

Expert 1460 points

Hi Marie,

Thanks, I was asking because we have devices regularly missing beacons and going into resync. Could this be a fix for that? I'm not sure what time period the receiver is on to receive a beacon but we have a relatively low beacon interval (1.2sec) and if this offset could cause the beacon to be missed.

thanks,

Marijn

+1 Marie H over 3 years ago in reply to Marijn Achterkamp

TI__Guru* 82061 points

Hi Marjin,

If you're using beacon interval of 1.2 s, it sounds like you're using beacon order 6. For BO = 6 the offset has gone from around 35 us to 7 us (depending on device and PHY). Both of these offsets are well within the spec and I would not expect any trouble for the peer device to receive these beacons.

You can try to use a logic analyzer on the RF pins to check what the offset is in your case.

https://dev.ti.com/tirex/explore/content/simplelink_cc13xx_cc26xx_sdk_6_10_00_29/docs/ti154stack/html/ti154stack-guide/debugging-index.html#debugging-rf-output

Cheers,

Marie H

0 Marijn Achterkamp over 3 years ago in reply to Marie H

Expert 1460 points

Hi Marie,

Yes indeed BO=6 in our case. Good to hear that both offsets are well within the spec already. This issue just caught my eye and wanted to be sure.

Thanks for your help!

Marijn

Sub-1 GHz

Sub-1 GHz forum

CC1352R: TI154STACK-3903 issue fixed