OK - I’ll set the DEBUG_SPI to 1
Where can I find the DEBUG output?
Commenting out the 2 lines had no effect.
OK - the SPI bus seems to be working.
31.07.17 21:24:53 (+0000) INFO: Description configured to “RPi3-ic880a-1”
31.07.17 21:24:53 (+0000) INFO: [main] TTY port /dev/ttyAMA0 open for GPS synchronization
31.07.17 21:24:53 (+0000) INFO: [Transports] Initializing protocol for 1 servers
31.07.17 21:24:57 (+0000) INFO: [TTN] server “bridge.eu.thethings.network” connected
31.07.17 21:24:57 (+0000) INFO: [main] Starting the concentrator
31.07.17 21:24:57 (+0000) Note: SPI port opened and configured ok
31.07.17 21:24:57 (+0000) Note: SPI read success
31.07.17 21:24:57 (+0000) Note: SPI read success
31.07.17 21:24:57 (+0000) ERROR: [main] failed to start the concentrator
31.07.17 21:25:09 (+0000) [TTN Gateway]: Resetting concentrator on pin 22
31.07.17 21:25:10 (+0000) *** Multi Protocol Packet Forwarder for Lora Gateway ***
31.07.17 21:25:10 (+0000) Version: 3.0.0
31.07.17 21:25:10 (+0000) *** Lora concentrator HAL library version info ***
31.07.17 21:25:10 (+0000) Version: 5.0.1; Options: native;
31.07.17 21:25:10 (+0000) ***
But the concentrator still fails to start.