rm -rf MMDVM-SDR/
git clone
cd MMDVM-SDR
git checkout mmdvm_sdr
mkdir build && cd build
cmake ..
make -j 2
[...]
Runnign with this MMDVM binary, MMDVMHost tells me:
W: 2024-06-17 18:38:18.287 Received a NAK from the MMDVM, command = 0x14, reason = 1
When I switch to trunking branch:
git checkout trunking
rm -rf build
mkdir build
cd build
cmake ..
make
NAK error is gone, but instead, the DMR signal on the control channel, when received as FM, is not steady, but interrupted about 1-2 times per second. That explains the CRC errors in dsd-fme.
Reduced to 4 channels, same problem. System load seems fine.
top - 20:48:08 up 11 min,? 2 users,? load average: 2.07, 2.22, 1.30
Tasks: 157 total,?? 2 running, 155 sleeping,?? 0 stopped,?? 0 zombie
%Cpu(s): 21.2 us,? 9.5 sy,? 0.0 ni, 69.0 id,? 0.0 wa,? 0.0 hi, 0.3 si,? 0.0 st
MiB Mem :? 15876.3 total,? 14964.8 free,??? 427.0 used,??? 484.5 buff/cache
MiB Swap:??? 976.0 total,??? 976.0 free,????? 0.0 used.? 15095.8 avail Mem
??? PID USER????? PR? NI??? VIRT??? RES??? SHR S? %CPU? %MEM TIME+ COMMAND
?? 2725 db9cr???? 20?? 0 3250220 177232? 52416 S? 65.4?? 1.1 0:43.10 qradiolink
?? 2814 db9cr???? 20?? 0? 321996?? 5776?? 5208 S? 11.3?? 0.0 0:07.85 mmdvm
?? 2727 db9cr???? 20?? 0 1590168? 92176? 61100 S? 11.0?? 0.6 0:08.19 dmrtc
?? 2815 db9cr???? 20?? 0? 321996?? 5652?? 5088 S? 10.3?? 0.0 0:07.55 mmdvm
?? 2816 db9cr???? 20?? 0? 321996?? 5684?? 5120 R? 10.3?? 0.0 0:07.51 mmdvm
?? 2817 db9cr???? 20?? 0? 321996?? 5656?? 5092 S? 10.3?? 0.0 0:07.56 mmdvm
?? 2947 db9cr???? 20?? 0??? 6364?? 3756?? 3488 S?? 2.7?? 0.0 0:01.17 DMRGateway
?? 2945 db9cr???? 20?? 0??? 6364?? 3648?? 3380 S?? 2.3?? 0.0 0:01.18 DMRGateway
?? 2946 db9cr???? 20?? 0??? 6364?? 3608?? 3336 S?? 2.0?? 0.0 0:01.17 DMRGateway
?? 2948 db9cr???? 20?? 0??? 6364?? 3736?? 3468 S?? 2.0?? 0.0 0:01.16 DMRGateway
?? 2938 db9cr???? 20?? 0?? 14976?? 3800?? 3532 S?? 1.0?? 0.0 0:00.58 MMDVMHost
?? 2939 db9cr???? 20?? 0?? 14976?? 3768?? 3496 S?? 1.0?? 0.0 0:00.57 MMDVMHost
?? 2940 db9cr???? 20?? 0?? 14976?? 3704?? 3428 S?? 1.0?? 0.0 0:00.57 MMDVMHost
?? 2941 db9cr???? 20?? 0?? 14976?? 3816?? 3548 S?? 1.0?? 0.0 0:00.57 MMDVMHost
??? 695 sddm????? 20?? 0 1229048 114384? 71876 S?? 0.3?? 0.7 0:04.27 sddm-greeter
????? 1 root????? 20?? 0? 164152? 10400?? 7728 S?? 0.0?? 0.1 0:01.16 systemd
????? 2 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 kthreadd
????? 3 root?????? 0 -20?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.00 rcu_gp
????? 4 root?????? 0 -20?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.00 rcu_par_gp
????? 6 root?????? 0 -20?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.00 kworker/0:0H-events_highpri
????? 8 root?????? 0 -20?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.00 mm_percpu_wq
????? 9 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 rcu_tasks_rude_
???? 10 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 rcu_tasks_trace
???? 11 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.02 ksoftirqd/0
???? 12 root????? 20?? 0?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.20 rcu_sched
???? 13 root????? rt?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 migration/0
???? 14 root????? 20?? 0?????? 0????? 0????? 0 I?? 0.0?? 0.0 0:00.04 kworker/0:1-events
???? 15 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 cpuhp/0
???? 16 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.00 cpuhp/1
???? 17 root????? rt?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.09 migration/1
???? 18 root????? 20?? 0?????? 0????? 0????? 0 S?? 0.0?? 0.0 0:00.01 ksoftirqd/1
different USB port solved the problem. Now the radio is registering!
Thank you very much for your help!
Christian DB9CR
