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RTOS/CC1310: Prevent from printing old data to UART

Mahir Hasan
Prodigy 100 points
Part Number: CC1310

Tool/software: TI-RTOS

Hi,

Example projects:

rfWsnNode -> LP1 (LaunchPad) | rfWsnConcentrator -> LP2

Every time LP1 is powered up or reset, a new nodeAddress is generated automatically.

LP2 receives RF packet from LP1 and with Realterm or Putty or linux terminal you can read those packets. As a new nodeAddress is generated when LP1 is restarted, instead of reading only the new RF packet, you also read the old RF packet every time LP2 receives a packet.

Example:

LP1 is started for the first time:

Data read from LP2 over USB:

0x321d92b5|0x02ab|0x4173|0x2ad1|0x111c|0x2678|0x7a33|0x5282|0x3902|0x026c|1|000000462|-042|

Here, 0x321d92b5 is the nodeAddress of LP1

Now LP1 is restarted.

Data read from LP2 over USB:

0x321d92b5|0x02ab|0x4173|0x2ad1|0x111c|0x2678|0x7a33|0x5282|0x3902|0x026c|1|000000462|-042|
0x59f64e88|0x02ad|0x0c33|0x7b3d|0x4691|0x5ec0|0x4a1d|0x51a5|0x640d|0x180d|1|000000020|-035|

0x321d92b5|0x02ab|0x4173|0x2ad1|0x111c|0x2678|0x7a33|0x5282|0x3902|0x026c|1|000000462|-042|
0x59f64e88|0x02af|0x26ab|0x2433|0x578d|0x257e|0x485e|0x358f|0x273e|0x38e6|1|000000021|-035|

0x321d92b5|0x02ab|0x4173|0x2ad1|0x111c|0x2678|0x7a33|0x5282|0x3902|0x026c|1|000000462|-042|
0x59f64e88|0x02ab|0x4868|0x3e74|0x4da6|0x353a|0x10b1|0x20c3|0x0493|0x7d11|1|000000022|-035|

0x321d92b5|0x02ab|0x4173|0x2ad1|0x111c|0x2678|0x7a33|0x5282|0x3902|0x026c|1|000000462|-042|
0x59f64e88|0x02ad|0x0ea8|0x3064|0x52c7|0x2cdb|0x46ca|0x2de0|0x4860|0x3ce1|1|000000023|-035|

As you can see, the new nodeAddress is 0x59f64e88. But when I read the packet, every time it prints out the old RF packet along with the newly received packet. Any idea how it can be solved?

Thank you.

  • 0
    TI__Guru* 86071 points
    The consentrator cannot distinguish between two different node, and the same node using two different addresses, hence it will add the"old" node with the new address, as if it was a new node :-) If you only have one node in your system and you only want to look at data from this one, simply reduce CONCENTRATOR_MAX_NODES from 7 to 1.