CC110L variable packet length

TIPUser

Other Parts Discussed in Thread: CC1101

Hi all.

When I set the pktlen register to 0x06, it suppose only receive 6 bytes of data, but when i send a 15 bytes of data, the receiver is still receiving all the 15 bytes of data.

Also, when I set the pktlen register to 0xFF, and I send 18 bytes of data, the first byte which is the length byte that the receiver received is only 0x0F=15.

Anyone know the reason?

Thanks in advance.

over 10 years ago

0 TER over 10 years ago

TI__Guru**** 317180 points

Are you using variable packet length (as the title of this post indicate) or fixed packet length as the use of pktlen indicate? See 15.2 in www.ti.com/.../cc1101.pdf

0 TIPUser over 10 years ago in reply to TER

Prodigy 100 points

Hi, Thanks for the reply.
Ya, I am using variable packet length.
There is no problem if my packet size is smaller than or equal to 15 bytes. If the packet size is larger than 15 bytes, the first byte that the receiver received is only 0x0F as long as the packet size is larger than 15 bytes.

0 TER over 10 years ago in reply to TIPUser

TI__Guru**** 317180 points

I would recommend to look at the easylink example for CC1101 here: processors.wiki.ti.com/.../Category:Sub-1GHz

Without your settings and code it's a bit difficult to know why things doesn't work as expected.

Sub-1 GHz

Sub-1 GHz forum

CC110L variable packet length