RockpiS/dev/serial-console - Revision history

Stephen: /* Windows */

2022-01-29T09:35:03Z

‎Windows

Stephen at 04:43, 8 February 2020

2020-02-08T04:43:35Z

Hipboi: /* Connection */

2019-11-04T03:19:50Z

‎Connection

Stephen at 12:26, 25 October 2019

2019-10-25T12:26:54Z

Stephen: /* Connection */

2019-10-14T01:16:18Z

‎Connection

Stephen: Created page with "{{rockpiS_header}} {{Languages|rockpiS/dev/serial-console}} ROCK Pi S > Development > Serial Console ROCK..."

2019-06-25T03:42:37Z

Created page with "{{rockpiS_header}} {{Languages|rockpiS/dev/serial-console}} ROCK Pi S > Development > Serial Console ROCK..."

New page

{{rockpiS_header}}
{{Languages|rockpiS/dev/serial-console}}
[[rockpiS | ROCK Pi S]] > [[rockpiS/dev | Development]] > [[rockpiS/dev/serial-console | Serial Console]]

ROCK Pi S exports a dedicated serial console, which can access the low level debug message.

== Requirement ==

* ROCK Pi S
* 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 S 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.'''

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

== Serial setting on host PC ==

The default serial setting for ROCK Pi S 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.rockpiS''', 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 rockpiS''' to use the config above and connects to the ROCK Pi S 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 '''rockpiS''' 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 09:35, 29 January 2022
Line 127:		Line 127:

	Once finish the setting, press '''Open''' button to start.		Once finish the setting, press '''Open''' button to start.
		+
		+	==== macOS ====
		+
		+	===== Tool picocom =====
		+
		+	Install picocom
		+
		+	<pre>
		+	% brew install --build-from-source radxa/picocom/picocom
		+	</pre>
		+
		+	Start picocom
		+
		+	<pre>
		+	% picocom -b 1500000 -d 8 /dev/tty.usbserial-2130
		+	</pre>

	=== FAQs ===		=== FAQs ===

@@ Line 38: / Line 38: @@
 |}
-* ROCK Pi S V11 Board
+* ROCK Pi S V11 Board and later
 {| class="wikitable"

← Older revision		Revision as of 01:16, 14 October 2019
Line 24:		Line 24:

	Connect the USB to TTL serial cable as below. '''Don't connect the red wire.'''		Connect the USB to TTL serial cable as below. '''Don't connect the red wire.'''
		+
		+	* ROCK Pi S V10 Board
		+
		+	{\| class="wikitable"
		+	\|-
		+	! ROCK Pi S \|\| <---> \|\| USB to TTL cable
		+	\|-
		+	\| RX(pin 9) \|\| <---> \|\| Green wire
		+	\|-
		+	\| TX(pin 11) \|\| <---> \|\| White wire
		+	\|-
		+	\| GND(pin 25) \|\| <---> \|\| Black wire
		+	\|}
		+
		+	* ROCK Pi S V11 Board
		+
		+	{\| class="wikitable"
		+	\|-
		+	! ROCK Pi S \|\| <---> \|\| USB to TTL cable
		+	\|-
		+	\| RX(pin 10) \|\| <---> \|\| Green wire
		+	\|-
		+	\| TX(pin 8) \|\| <---> \|\| White wire
		+	\|-
		+	\| GND(pin 6) \|\| <---> \|\| Black wire
		+	\|}

	[[File:rockpis_serial-connection.jpeg \| 500px ]]		[[File:rockpis_serial-connection.jpeg \| 500px ]]

@@ Line 5: / Line 5: @@
 ROCK Pi S exports a dedicated  serial console, which can access the low level debug message.
-== Requirement ==
+=== Requirement ===
 * ROCK Pi S
@@ Line 15: / Line 15: @@
 [[File:usb2ttl-cable-definition.jpeg | 500px ]]
-=== Note ===
+==== Note ====
 * The default baudrate of ROCK Pi S 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 21: / Line 21: @@
 * 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 ==
+=== Connection ===
 Connect the USB to TTL serial cable as below. '''Don't connect the red wire.'''
@@ Line 53: / Line 53: @@
 [[File:rockpis-serial-connection.jpeg | 500px ]]
-== Serial setting on host PC ==
+=== Serial setting on host PC ===
 The default serial setting for ROCK Pi S u-boot and kernel console is:
@@ Line 63: / Line 63: @@
      flow control: none
-=== Linux ===
+==== Linux ====
 Minicom is the serial tool that supports wide range baud rate.
@@ Line 85: / Line 85: @@
 '''/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 108: / Line 108: @@
 Now run '''minicom rockpiS''' to use the config above and connects to the ROCK Pi S serial console.
-=== Windows ===
+==== Windows ====
 Putty is also great serial tool that supports wide range baud rate.
@@ Line 128: / Line 128: @@
 Once finish the setting, press '''Open''' button to start.
-== Troubleshooting ==
+=== FAQs ===
 * Post your issue at the forum: https://forum.radxa.com/c/dev