Hi

I am using an OrangePi Zero 2+ with AllWinner H3 and i need both uart. I enable them with armbian-config and on pins 

Uart2 on pins 8 and 10 work fine bat uart1 on pins 11, 13 don't.

The pin on this board is not the same as orangepi zero?

I mast make some setup to make uart1 to work? 

 

auto@orangepizeroplus2-h3:~$ uname -a
Linux orangepizeroplus2-h3 5.9.14-sunxi #20.11.3 SMP Fri Dec 11 20:31:12 CET 2020 armv7l armv7l armv7l GNU/Linux
auto@orangepizeroplus2-h3:~$ cat /boot/armbianEnv.txt
verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun8i-h3
overlays=i2c1 uart1 uart2 uart3 usbhost2 usbhost3
rootdev=UUID=f2961b16-88cc-46d0-8297-931c6211f21c
rootfstype=ext4
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
auto@orangepizeroplus2-h3:~$ ls -al /dev/ttyS*
crw--w---- 1 root tty     4, 64 Feb 26 07:57 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 Feb 26 07:58 /dev/ttyS1
crw-rw---- 1 root dialout 4, 66 Feb 26 07:58 /dev/ttyS2
crw-rw---- 1 root dialout 4, 67 Feb 26 07:56 /dev/ttyS3
crw-rw---- 1 root dialout 4, 68 Feb 26 07:56 /dev/ttyS4
crw-rw---- 1 root dialout 4, 69 Feb 26 07:56 /dev/ttyS5
crw-rw---- 1 root dialout 4, 70 Feb 26 07:56 /dev/ttyS6
crw-rw---- 1 root dialout 4, 71 Feb 26 07:56 /dev/ttyS7
auto@orangepizeroplus2-h3:~$ dmesg | grep tty
[    0.000000] Kernel command line: root=UUID=f2961b16-88cc-46d0-8297-931c6211f21c rootwait rootfstype=ext4 console=ttyS0,115200 console=tty1 hdmi.audio=EDID:0 disp.screen0_output_mode=1920x1080p60 consoleblank=0 loglevel=1 ubootpart= ubootsource=mmc usb-storage.quirks=0x2537:0x1066:u,0x2537:0x1068:u   sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16 cgroup_enable=memory swapaccount=1
[    0.000272] printk: console [tty1] enabled
[    2.333990] printk: console [ttyS0] disabled
[    2.334080] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 40, base_baud = 1500000) is a 16550A
[    2.334160] printk: console [ttyS0] enabled
[    2.335312] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 41, base_baud = 1500000) is a 16550A
[    2.336286] 1c28800.serial: ttyS2 at MMIO 0x1c28800 (irq = 42, base_baud = 1500000) is a 16550A
[    2.337239] 1c28c00.serial: ttyS3 at MMIO 0x1c28c00 (irq = 43, base_baud = 1500000) is a 16550A
[    4.955994] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    5.613942] systemd[1]: Found device /dev/ttyGS0.
[    6.438922] systemd[1]: Found device /dev/ttyS0.
auto@orangepizeroplus2-h3:~$ pyserial-miniterm /dev/ttyS2
--- Miniterm on /dev/ttyS2  9600,8,N,1 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
sdfsdf

--- exit ---
 

On 2/26/2021 at 10:30 AM, popai said:

Armbianmonitor:

http://ix.io/2QU2

Hi

I am using an OrangePi Zero 2+ with AllWinner H3 and i need both uart. I enable them with armbian-config and on pins 

Uart2 on pins 8 and 10 work fine bat uart1 on pins 11, 13 don't.

The pin on this board is not the same as orangepi zero?

I mast make some setup to make uart1 to work? 

 

auto@orangepizeroplus2-h3:~$ uname -a
Linux orangepizeroplus2-h3 5.9.14-sunxi #20.11.3 SMP Fri Dec 11 20:31:12 CET 2020 armv7l armv7l armv7l GNU/Linux
auto@orangepizeroplus2-h3:~$ cat /boot/armbianEnv.txt
verbosity=1
bootlogo=false
console=both
disp_mode=1920x1080p60
overlay_prefix=sun8i-h3
overlays=i2c1 uart1 uart2 uart3 usbhost2 usbhost3
rootdev=UUID=f2961b16-88cc-46d0-8297-931c6211f21c
rootfstype=ext4
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u
auto@orangepizeroplus2-h3:~$ ls -al /dev/ttyS*
crw--w---- 1 root tty     4, 64 Feb 26 07:57 /dev/ttyS0
crw-rw---- 1 root dialout 4, 65 Feb 26 07:58 /dev/ttyS1
crw-rw---- 1 root dialout 4, 66 Feb 26 07:58 /dev/ttyS2
crw-rw---- 1 root dialout 4, 67 Feb 26 07:56 /dev/ttyS3
crw-rw---- 1 root dialout 4, 68 Feb 26 07:56 /dev/ttyS4
crw-rw---- 1 root dialout 4, 69 Feb 26 07:56 /dev/ttyS5
crw-rw---- 1 root dialout 4, 70 Feb 26 07:56 /dev/ttyS6
crw-rw---- 1 root dialout 4, 71 Feb 26 07:56 /dev/ttyS7
auto@orangepizeroplus2-h3:~$ dmesg | grep tty
[    0.000000] Kernel command line: root=UUID=f2961b16-88cc-46d0-8297-931c6211f21c rootwait rootfstype=ext4 console=ttyS0,115200 console=tty1 hdmi.audio=EDID:0 disp.screen0_output_mode=1920x1080p60 consoleblank=0 loglevel=1 ubootpart= ubootsource=mmc usb-storage.quirks=0x2537:0x1066:u,0x2537:0x1068:u   sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16 cgroup_enable=memory swapaccount=1
[    0.000272] printk: console [tty1] enabled
[    2.333990] printk: console [ttyS0] disabled
[    2.334080] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 40, base_baud = 1500000) is a 16550A
[    2.334160] printk: console [ttyS0] enabled
[    2.335312] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 41, base_baud = 1500000) is a 16550A
[    2.336286] 1c28800.serial: ttyS2 at MMIO 0x1c28800 (irq = 42, base_baud = 1500000) is a 16550A
[    2.337239] 1c28c00.serial: ttyS3 at MMIO 0x1c28c00 (irq = 43, base_baud = 1500000) is a 16550A
[    4.955994] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    5.613942] systemd[1]: Found device /dev/ttyGS0.
[    6.438922] systemd[1]: Found device /dev/ttyS0.
auto@orangepizeroplus2-h3:~$ pyserial-miniterm /dev/ttyS2
--- Miniterm on /dev/ttyS2  9600,8,N,1 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
sdfsdf

--- exit ---
 

 

OK, according to the Xunlong's board schematic uart1 is no longer on 2x13 expansion port, on pin 11 an 13 is S-TWI-SCK / PL0 ,S-TWI-SDA / PL1 (uart1 is on PG6, PG7).

I tray to enable uart3, bat no success. Uart3 according to schematic is on pin PA13, PA14, this pin ar on 2x13  expansion port.

Any advice how to enable uart3 on OrangePi Zero 2+ ?