RockpiN10/dev/serial-console - Revision history

Stephen: /* Requirement */ The voltage of serial console pins is 3.3V.

2021-01-15T12:35:27Z

‎Requirement: The voltage of serial console pins is 3.3V.

Stephen: /* Troubleshooting */

2021-01-15T12:32:12Z

‎Troubleshooting

Stephen at 04:46, 8 February 2020

2020-02-08T04:46:06Z

Hipboi: /* Connection */

2019-12-03T10:41:09Z

‎Connection

Hipboi: /* Setup minicom */

2019-12-03T10:13:28Z

‎Setup minicom

Hipboi: /* Serial setting on host PC */

2019-12-03T10:11:21Z

‎Serial setting on host PC

Hipboi: /* Requirement */

2019-12-03T10:10:40Z

‎Requirement

Hipboi: Created page with "{{rockpiN10_header}} {{Languages|rockpiN10/dev/serial-console}} ROCK Pi N10 > Development > rockpiN10/dev/serial-console | Serial Co..."

2019-12-03T10:02:17Z

Created page with "{{rockpiN10_header}} {{Languages|rockpiN10/dev/serial-console}} ROCK Pi N10 > Development > rockpiN10/dev/serial-console | Serial Co..."

New page

{{rockpiN10_header}}
{{Languages|rockpiN10/dev/serial-console}}

[[rockpiN10 | ROCK Pi N10]] > [[rockpiN10/dev | Development]] > [[rockpiN10/dev/serial-console | Serial Console]]

ROCK Pi N10 exports the dedicated serial console for CPU and the NPU, which can access the low level debug message.

== Requirement ==

* ROCK Pi N10
* USB Type-C power adapter and USB Type-C charging data cable
* Host PC with Windows or Linux
* USB to TTL serial cable
** The definition of each pin of USB to TTL cable is showing like this:

[[File:usb2ttl-cable-definition.jpeg | 500px ]]

=== Note ===

* The default baudrate of ROCK Pi N10 CPU&NPU is 1500000(1.5Mbps), please check if your USB to TTL cable support 1.5Mbps baudrate. Some model of [https://www.silabs.com/products/interface/usb-bridges CP210X] and [http://www.prolific.com.tw/US/ShowProduct.aspx?pcid=41 PL2303x] have baudrate limitation, please check the specified model. We also tested that some cheap PL2303x based cable does not work well. Make sure choose a high quality one. The instructions below use a [http://www.ftdichip.com/Products/ICs/FT232R.htm FT232RL] based cable.

* It seems that the serial tool on macOS platform can not support custom baudrate such as 1.5Mbps due to driver restriction. If you know how to set custom baudrate on macOS, please add an item here to show your findings.

== Connection ==

Connect the USB to TTL serial cable as below. '''Don't connect the red wire.'''

{| class="wikitable"
|-
! ROCK Pi N10 || <---> || USB to TTL cable
|-
| RX(pin 10) || <---> || Green wire
|-
| TX(pin 8) || <---> || White wire
|-
| GND(pin 6) || <---> || Black wire
|}

[[File:serial-connection.jpeg | 500px ]]

== Serial setting on host PC ==

The default serial setting for ROCK Pi N10 u-boot and kernel console is:

baudrate: 1500000
data bit: 8
stop bit: 1
parity : none
flow control: none

=== Linux ===

Minicom is the serial tool that supports wide range baud rate.

Install minicom:

sudo apt-get update
sudo apt-get install minicom

Plug in the USB to TTL cable, kernel `dmesg | tail` should show the following device:

[1036835.654076] usb 1-6.4.3: new full-speed USB device number 103 using xhci_hcd
[1036835.755730] usb 1-6.4.3: New USB device found, idVendor=0403, idProduct=6001
[1036835.755732] usb 1-6.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[1036835.755733] usb 1-6.4.3: Product: USB <-> Serial
[1036835.755734] usb 1-6.4.3: Manufacturer: FTDI
[1036835.756728] ftdi_sio 1-6.4.3:1.0: FTDI USB Serial Device converter detected
[1036835.756750] usb 1-6.4.3: Detected FT232BM
[1036835.757195] usb 1-6.4.3: FTDI USB Serial Device converter now attached to ttyUSB0

'''/dev/ttyUSB0''' is our device here.

==== Setup minicom====

First add current user to plugdev group to use minicom without sudo or root.

sudo usermod -a -G plugdev $USER

Edit your '''~/.bashrc''' and add the following line with some default parameter

alias minicom='minicom -w -t xterm -l -R UTF-8'

Login to a new terminal to take effect.

Create and edit file '''~/.minirc.n10''', add the following content:

pu port /dev/ttyUSB0
pu baudrate 1500000
pu bits 8
pu parity N
pu stopbits 1
pu rtscts No

Now run '''minicom n10''' to use the config above and connects to the ROCK Pi N10 serial console.

=== Windows ===

Putty is also great serial tool that supports wide range baud rate.

Plug in the USB to TTL cable to you windows PC. Viewing the '''device manager''' you can find the '''COM number'''. Here it is '''COM3'''.

Launch the application Putty on your windows PC. And do the setting as follows:

For category '''Session''', set '''serial line''' as COM3, '''speed''' ad 1500000, '''connection type''' as Serial.

Write '''rockpi4''' in the '''Saved Sessions''' column and press '''Save'''.

[[File:putty-setting-session.jpg | 500px ]]

For category '''Connection---Serial''', do the setting:

[[File:putty-setting-serial.jpg | 500px ]]

Once finish the setting, press '''Open''' button to start.

== Troubleshooting ==
* Post your issue at the forum: https://forum.radxa.com/c/dev

← Older revision		Revision as of 12:32, 15 January 2021
Line 127:		Line 127:

	=== Troubleshooting ===		=== Troubleshooting ===
−	* Post your issue at the forum: https://forum.radxa.com/c/~~dev~~	+	* Post your issue at the forum: https://forum.radxa.com/c/rockpin10.

@@ Line 11: / Line 11: @@
 * USB Type-C power adapter and USB Type-C charging data cable
 * Host PC with Windows or Linux
-* USB to TTL serial cable x2
+* USB to TTL serial cable
 ** The definition of each pin of USB to TTL cable is showing like this:

@@ Line 6: / Line 6: @@
 ROCK Pi N10 exports the dedicated  serial console for CPU and the NPU, which can access the low level debug message.
-== Requirement ==
+=== Requirement ===
 * ROCK Pi N10
@@ Line 16: / Line 16: @@
 [[File:usb2ttl-cable-definition.jpeg | 500px ]]
-=== Note ===
+==== Note ====
 * The default baudrate of ROCK Pi N10 CPU&NPU is 1500000(1.5Mbps), please check if your USB to TTL cable support 1.5Mbps baudrate. Some model of [https://www.silabs.com/products/interface/usb-bridges CP210X] and [http://www.prolific.com.tw/US/ShowProduct.aspx?pcid=41 PL2303x]  have baudrate limitation, please check the specified model. We also tested that some cheap PL2303x based cable does not work well. Make sure choose a high quality one. The instructions below use a [http://www.ftdichip.com/Products/ICs/FT232R.htm FT232RL] based cable.
@@ Line 24: / Line 24: @@
 * You need two USB to TTL cable if you want to debug CPU and NPU at the same time.
-== Connection ==
+=== Connection ===
 Connect the USB to TTL serial cable as below. '''Don't connect the red wire.'''
@@ Line 41: / Line 41: @@
 [[File:Rockpin10_serial_console.jpeg | 500px ]]
-== Serial setting on host PC ==
+=== Serial setting on host PC ===
 The default serial setting for ROCK Pi N10 CPU&NPU u-boot and kernel console is:
@@ Line 51: / Line 51: @@
      flow control: none
-=== Linux ===
+==== Linux ====
 Minicom is the serial tool that supports wide range baud rate.
@@ Line 73: / Line 73: @@
 '''/dev/ttyUSB0''' is our device here.
-==== Setup minicom====
+===== Setup minicom=====
 First add current user to plugdev group to use minicom without sudo or root.
@@ Line 100: / Line 100: @@
 run '''minicom n10-npu''' to connect to the NPU serial console.
-=== Windows ===
+==== Windows ====
 Putty is also great serial tool that supports wide range baud rate.
@@ Line 120: / Line 120: @@
 Once finish the setting, press '''Open''' button to start.
-== Troubleshooting ==
+=== FAQs ===
 * Post your issue at the forum: https://forum.radxa.com/c/dev

@@ Line 94: / Line 94: @@
      pu rtscts           No
-Now run '''minicom n10''' to use the config above and connects to the ROCK Pi N10 serial console.
+Copy the conf file to NPU.
 === Windows ===

@@ Line 43: / Line 43: @@
 == Serial setting on host PC ==
-The default serial setting for ROCK Pi N10 u-boot and kernel console is:
+The default serial setting for ROCK Pi N10 CPU&NPU u-boot and kernel console is:
      baudrate: 1500000