CC1310: CRC override for RF

Emanuel Aguirre

Prodigy 20 points

Part Number: CC1310

I am developing a an application that transmits data over RF, and there is a need to use certain polynomial.

The polynomial is 0x9eb2, that is: x^16 +x^13 +x^12 +x^11 +x^10 +x^8 +x^6 +x^5 +x^2 +1.

Can I do parameter overriding to be able to use this polynomial for the RF data transmission?

If so, where do I make the parameter overriding?

My question is based on the answer in this post:

https://e2e.ti.com/support/wireless-connectivity/sub-1-ghz/f/156/t/520740

over 6 years ago

0 TER over 6 years ago

TI__Guru**** 317180 points

The post you link to covers which override you have to modify to use a different CRC polynomial and where to place the override. You can use a online CRC calculator to find the normal form of the polynomial you are using.

0 Emanuel Aguirre over 6 years ago in reply to TER

Prodigy 20 points

I was also asking because in the other post says: "It is not straight forward how this can be done, so if you can specify what CRC you are interested in we can see if this can be supported or not."
But. Making the overrides as indicated in the other post, using the Normal Form should do, right?

0 TER over 6 years ago in reply to Emanuel Aguirre

TI__Guru**** 317180 points

The post you refer to is more than 2.5 years old and we have added more documentation etc after this. Here is how this is now documented in the SDK:

dev.ti.com/.../packet-format.html

Sub-1 GHz

Sub-1 GHz forum

CC1310: CRC override for RF