RTOS/CC1310: How to know easylink Starting Frame time Delimiter

jihwan jang

Intellectual 300 points

Part Number: CC1310

Tool/software: TI-RTOS

I try to test connection between rfWsnNode and rfWsnConcentrator.

When node will connect concentrator , they can connect easylink.

Do you know start time of easylink? is there any time information related to easylink frame start ?

What is EasyLink_getAbsTime() ? this function means delivery time from TX to RX ?

Could you explain it about the detailed ?

thank you for reading.

Best regard.

over 4 years ago

0 Seong Kim over 4 years ago

TI__Mastermind 34310 points

Jihwan,

Information about the EasyLink Layer can read here.

The EasyLink_getAbsTime() is defined in the EasyLink API reference page here.

BR,

Seong

0 jihwan jang over 4 years ago in reply to Seong Kim

Intellectual 300 points

Hi Seong

Thank you for Quick reply.

I figured out that EasyLink getAbsTime() can return absolute radio time.

But I have more questions , how to measure absolute radio time ?

Could absolute radio time count refer to 32.768KHZ?

Also, Clock_getTicks() can get a timestamp . is it a relative time or a absolute time ?

Could you explain the detailed compare Clock_getTicks() return value and EasyLink getAbsTime() ?

Thank you

Best Regard.

0 Seong Kim over 4 years ago in reply to jihwan jang

TI__Mastermind 34310 points

Jihwan,

Clock_getTicks() is driven by the 32kHz crystal and getAbsTime() is driven by the radio timer (RAT) module.

See section 23.2.3. in the TRM for more information about the RAT.

BR,

Seong

0 jihwan jang over 4 years ago in reply to Seong Kim

Intellectual 300 points

I couldn't find section 23.2.3 as you mentioned.

Could you let me know link URL about it

Thanks

0 Seong Kim over 4 years ago in reply to jihwan jang

TI__Mastermind 34310 points

Jihwan,

See here for the CC1310 TRM.

BR,

Seong

Sub-1 GHz

Sub-1 GHz forum

RTOS/CC1310: How to know easylink Starting Frame time Delimiter