RTOS/CC1310: Broadcast example for cc1310

Rohit Kulkarni

Prodigy 90 points

Part Number: CC1310

Tool/software: TI-RTOS

Hello,

Is there any broadcasting example in TI 15.4 for cc1310. I am currently using simpleink sdk 1_60_00_21.

over 7 years ago

0 YiKai Chen over 7 years ago

Guru 735685 points

There’s no broadcast example in TI 15.4 Stack.

0 Rohit Kulkarni over 7 years ago in reply to YiKai Chen

Prodigy 90 points

Hi YiKai,

Thanks for the prompt response! Even if there's no example, can you let me know if broadcast is supported on the cc1310 802.15.4g stack?

In our tests the unicast packets (with extended addresses) are transmitted without a problem but as soon as we use the short address 0xFFFF, the application crashes. Before we proceed with further debugging, I was curious if there's anything special that we need to set on the mcps data request for broadcasting a packet or any other steps that we may have missed. Fyi, we are using the simplelink SDK v1.60.

Regards,

Rohit

0 YiKai Chen over 7 years ago in reply to Rohit Kulkarni

Guru 735685 points

According to csf.h, "#defineCSF_INVALID_SHORT_ADDR 0xFFFF", 0xFFFF is an invalid short address.

0 Rohit Kulkarni over 7 years ago in reply to YiKai Chen

Prodigy 90 points

Hello,

We have the following library defined values in api_mac.h:

/*! Special address value - Broadcast short address */
#define APIMAC_SHORT_ADDR_BROADCAST 0xFFFF


/*! Special address value - Short address when there is no short address */
#define APIMAC_SHORT_ADDR_NONE 0xFFFF

0 YiKai Chen over 7 years ago in reply to Rohit Kulkarni

Guru 735685 points

Hector_r Can you suggest how to do broadcast in TI 15.4 stack?

0 Hector_r over 7 years ago in reply to Rohit Kulkarni

TI__Genius 12415 points

Hi,

I believe you should set the following options
dataReq.txOptions.ack = false;
and
dataReq.txOptions.indirect = false;

Regards,
Hector

0 Hector_r over 7 years ago in reply to Hector_r

TI__Genius 12415 points

I have tested sending a broadcast by setting the dst short address as 0xFFFF and using the following settings
dataReq.txOptions.ack = false;
and
dataReq.txOptions.indirect = false;

and my device has no problem sending broadcasts over the air

0 Rohit Kulkarni over 7 years ago in reply to Hector_r

Prodigy 90 points

Thanks Hector!

"txOptions.indirect =false;" did the trick. We were already setting txOptions.ack to false;

What I'm wondering though is that we use direct transmission for unicast packets as well but that works without setting txOptions.indirect to false. Could this be a bug in the sdk?

Regards,

Rohit

0 Hector_r over 7 years ago in reply to Rohit Kulkarni

TI__Genius 12415 points

By default txOption.indirect is false (if you are using the API sendMsg) since "dataReq" gets initialized to all 0. So there should not really be a need of setting txOption.indirect=false in this API as long as rxOnIdle is set to true, otherwise rxOnIdle will change the value of txOption.indirect to true.

Sub-1 GHz

Sub-1 GHz forum

RTOS/CC1310: Broadcast example for cc1310