CC110L: Carrier Sense

Paul K Joy

Prodigy 70 points

Part Number: CC110L
Other Parts Discussed in Thread: CC1101

Tool/software:

I want to use Carrier sense in CC110L , data rate: 38.4 KBaud, 865 MHz.

I want to set RSSI threshold to enable CCA . How to configure AGCCTRL registers for this?

5 months ago

0 ZC 5 months ago

TI__Genius 13170 points

Hi,

Along with Section 7 of SWRA114 (the App Note linked in your previous thread), you can use SmartRF Studio 7 to calculate the required settings and export the register values.

Starting with one of the recommended register settings in SmartRF Studio is the best method for this - (the AGCCTRL registers are updated with the selected PHY).

SmartRF Studio 7: https://www.ti.com/tool/SMARTRFTM-STUDIO

Regards,

Zack

0 Paul K Joy 5 months ago in reply to ZC

Prodigy 70 points

How to generate similar table (as in the App note section 7) to find the CS absolute threshold?

0 Paul K Joy 5 months ago in reply to Paul K Joy

Prodigy 70 points

What should be the setting If I want the CS threshold to be at -70dBm. (865Mhz , 38.4kBaud)

0 ZC 3 months ago in reply to Paul K Joy

TI__Genius 13170 points

Hi Paul,

Please see Sverre's answer in the following thread (the last paragraph describes how to measure the exact threshold): https://e2e.ti.com/support/wireless-connectivity/other-wireless-group/other-wireless/f/other-wireless-technologies-forum/229044/carrier-sense-threshold-setting-for-cc1101

Otherwise, there are two tables (2.5 kBaud and 250 kBaud) in the CC1101 Datasheet: https://www.ti.com/lit/swrs061 that are also applicable to the CC110L that you can use as a reference (along with the settings generated in SmartRF Studio 7).

Regards,

Zack

Sub-1 GHz

Sub-1 GHz forum

CC110L: Carrier Sense