I have been running 9.99.17 on RPi3+ and did ./build.sh current, which produced 9.99.69 -- and it works perfectly, no garbling. I just copied src/sys/arch/evbarm/compile/obj/GENERIC/netbsd.img to /boot/KERNEL7.IMG and rebooted.
# sysctl -a|grep freq machdep.cpu.frequency.target = 1400 machdep.cpu.frequency.current = 1400 machdep.cpu.frequency.min = 600 machdep.cpu.frequency.max = 1400 machdep.cpu.frequency.available = 600 1400 So I'm now more confused than ever. On Wed, Jul 8, 2020 at 9:03 AM Michael van Elst <mlel...@serpens.de> wrote: > kar...@netbsd.org (Frank Kardel) writes: > > >The next message is the setting of the maxiimum frequency which hoses the > >RPI3B serial port speed. Do we have a clock setting/source issue here? > > It's a hardware limitation, the UART frequency is coupled with the > CPU frequency. > > You can either run with a fixed CPU frequency or configure the other UART > as serial port. The latter then causes problems with the bluetooth > controller. > > -- > -- > Michael van Elst > Internet: mlel...@serpens.de > "A potential Snark may lurk in every tree." >