CC1310: Is there CSMA and carrier sensing in the EasyLink?

SEONGHO KIM

Part Number: CC1310

Hello,

I'm planning to use the EasyLink API(Sub-1GHz) with CC1310 to communicate several nodes. (rfWsnConcentrator and rfWsnNode examples)

But I'm not sure that there is carrier sensing and CSMA mechanism in EasyLink layer.

In order to avoid the collision, do we need to implement a protocol like CSMA to the examples above?

Thank you.

over 6 years ago

0 TER over 6 years ago

TI__Guru**** 317180 points

Have you looked at the following example: dev.ti.com/.../README.html

0 samuel zhang over 6 years ago in reply to TER

Intellectual 570 points

Is there any documents describing how to form an EasyLink network? For example there are six nodes A,B,C,D,E,F; I expect A,B,C to form network N1 and D, E, F form network N2. N1 and N2 must be different frequency?

0 samuel zhang over 6 years ago in reply to samuel zhang

Intellectual 570 points

A,B,C,D,E,F are all in radio communication range, that means they can listen each other.

0 YiKai Chen over 6 years ago in reply to samuel zhang

Guru 735685 points

EasyLink doesn’t form network. If you need to form network, you should use TI 16.4 collector/sensor examples.

0 samuel zhang over 6 years ago in reply to YiKai Chen

Intellectual 570 points

If use the collector/Sensor examples, ( A,B,C,D,E,F) six CC1310 devices are in communication range, (A,B,C) is in N1 group and (D,E,F) in another N2 group; N1 and N2 group don't communicate each other, how to achieve that?

Another question, the Technical Reference Manual (swcu117.pdf) combines CC13X0 and CC26X0, there are 8 sections in chapter 23 Radio, from 23.1 to 23.8; which section belongs to CC13X0?

0 YiKai Chen over 6 years ago in reply to samuel zhang

Guru 735685 points

When a collector forms 15.4 network, it will use a specific PANID to make difference. In your case, A, B, C would use a PANID and D, E, F would use another. For swcu117, except 23.6 are for CC1310.

0 SEONGHO KIM over 6 years ago in reply to YiKai Chen

Prodigy 140 points

Thank you for your reply!!!

I already know TI 16.4 collector/sensor examples.

However the examples are working based on TI 802.15.04g Mac protocol so they are very heavy.

I just want very light-weight protocol to communicate with one coordinator and about 20 nodes.

Thank you.

0 SEONGHO KIM over 6 years ago in reply to TER

Prodigy 140 points

Thank you. I'll check the example today.

0 YiKai Chen over 6 years ago in reply to SEONGHO KIM

Guru 735685 points

Then, you might have to implement this by yourself based on EasyLink examples.

Sub-1 GHz

Sub-1 GHz forum

CC1310: Is there CSMA and carrier sensing in the EasyLink?