i am using cdma_txrx_.grc,there is two ways :imitate wihtout usrp and entity wiht usrp
the first is using virtual source and virtual sink to imitate the tx and rx, this way work well.
the second i replace the virtual sorce and sink whit usrp source and sink,when i run the grc,i got an error,
the cdma_txrx.grc grc just wok well occasionally,this means that when i run this grc first time ,it is well as i using virtual sink source,but when i run this grc second time ,the grc crashed, and this is the error message
Sgr::log :INFO: packet_headerparser_b0 - Detected an invalid packet at item 0
******* MESSAGE DEBUG PRINT ********
#f
************************************
S
>>> Done
i want to konw why i replaced the virtual sink and source the same grc cannot work as before
and i want to konw what is this message mean,how can i solve it
thanks
accessory is the grc file,i am using cdma_txrx.grc
mine usrp sink and source is using sample rate=800K center freq=140M gain = 30
cdma_txrx.grc