Hello to everyone ,
I'm trying to read NMEA messages from GPS receiver via UART .
But can't read anything on pins 8,10 & 38,40 ..
What coulb be a reason ? GPS receiver is working fine , I can read it via USB-UART converter on the same board ...
Thanks in advance !
Here's my system (UARTs are enabled via armbian config utility):
root@orangepiprime:/boot# cat armbianEnv.txt
verbosity=1
console=both
overlay_prefix=sun50i-h5
rootdev=UUID=aca8c4ac-41d0-4e0b-ae7e-1d727baa4d43
rootfstype=ext4
overlays=pps-gpio uart1 uart2 uart3
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
root@orangepiprime:/boot# uname -a
Linux orangepiprime 4.14.70-sunxi64 #274 SMP Wed Sep 19 12:09:30 CEST 2018 aarch64 GNU/Linux