Starting with a newly cloned (recursive) contiki source as of 10 September 2016.
Buffer mod to slip-radio and band(AU) + channel changes to slip-radio and examples/cc26cc/cc26xx-web-demo. I also enabled CC26XX_UART_CONF_ENABLE and added a simple RSSI indicator to the read_frame routine in cpu/cc26xx-cc13xx/rf-core/prop-mode.c. My slip host is 6lbr in Ubuntu (instant-contiki). The test hardware is launchpad/cc1310 - no external antenna.
After a long packet has been transmitted (> 50 bytes), the RSSI of the response packet is ~13dbm HIGHER than other received packets. I am trying to understand why, since I am having a range issue - severely less than the range spread-sheet indicates and a 13dbm variation would account for some of that.
Other threads have suggested using the nullrdc driver but when I do that, I lose all data capability - there is lots of rx and tx activity, but any request (GET, PING, ...) from 6lbr times out. Remove the nullrdc driver and it all comes good. Doubling the RDC rate to 16 samples per second degraded the performance as well.
There were mentions of upgraded firmware, but this is happening with a very recent clone.
I am at a loss on what to look at next.
