Text sent not being displayed at receiver using smartrf studio for smartrf board+cc13xx using Tx/Rx sample example of TI-RTOS

yenubaripratap.yp

Intellectual 430 points

hello,

i have been testing the sample Tx/Rx code for TI-RTOS using CCS on smartRf +cc13xxEM-7XD-7793_4L.

I have set the frequency of 920MHZ.

The packets are shown being transmitted and the receiver is receiving them.

I have tried to send the text "hello" but at the receiver some garbage values are coming.how to rectify this error.

also when i put the frequency to 868 or 915 Mhz the receiver side though the packets are being shown received by the values for the text remain blank and the rssi and packet error rate etc. are showing no response and are blank..

why is this happening.

i am attaching the snapshots of the tx and rx using smartRF

over 8 years ago

0 TER over 8 years ago

TI__Guru**** 317180 points

You have set up the sender with fixed packet length and the receiver with variable, use variable on both and it will work.

0 yenubaripratap.yp over 8 years ago in reply to TER

Intellectual 430 points

thank you sir its working.

another doubt i have is with respect to the CRC field of the packet .Its always showing XX XX as you can see in the above picture.
plz tell me how to make it variable.

thank u

0 TER over 8 years ago in reply to yenubaripratap.yp

TI__Guru**** 317180 points

The CRC field is marked with xx since SmartRF Studio does not calculate what the CRC is. If you want to know the CRC you can set the receiver to receive with fixed packet length set to 2 bytes more than what is set to on the Tx side. Then the two last bytes in the FIFO will be the CRC.

0 yenubaripratap.yp over 8 years ago in reply to TER

Intellectual 430 points

Thank you .i got it

Sub-1 GHz

Sub-1 GHz forum

Text sent not being displayed at receiver using smartrf studio for smartrf board+cc13xx using Tx/Rx sample example of TI-RTOS