Yunjin.jiang at 02:28, 26 May 2023

2023-05-26T02:28:55Z

Yunjin.jiang at 02:02, 24 November 2021

2021-11-24T02:02:19Z

Yunjin.jiang: Created page with "= USB2UART Bridge = There are plenty types of usb to uart bridge in the market . Most of them use the following chip : *[https://www.silabs.com/products/development-too..."

2021-11-24T02:00:26Z

Created page with "= USB2UART Bridge = There are plenty types of usb to uart bridge in the market . Most of them use the following chip : *[https://www.silabs.com/products/development-too..."

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= USB2UART Bridge =

There are plenty types of usb to uart bridge in the market . Most of them use the following chip :

*[https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers CP210X]
*[http://www.prolific.com.tw/US/ShowProduct.aspx?pcid=41 PL2303]
*[https://sparks.gogo.co.nz/ch340.html CH340]

= Hardware PIN define  =

RSB4810 debug port pin define : 

{| border="1" cellspacing="1" cellpadding="1"
|-
| '''PIN'''
| '''PIN Name'''
|-
| 1
| NC
|-
| 2
| TX
|-
| 3
| RX
|-
| 4
| GND
|}

[[File:RSB-4710 Debug console.jpg|RTENOTITLE]]

'''Note : '''

Please connect device's TX to usb2uart adapter's RX and device's RX to usb2uart adapter's TX .

= UART parameter =

*BaudRate：115200
*DataBits  ：8
*StopBits  ：1
*Parity      ：None
*FlowControl：None or XON/XOFF

= Debug on windows =

Install usb2uart adapter's driver. Connect adapter to PC , you will find COM port like :

[[File:RK3288 Debian Debug Port Number.png|800x572px|RK3288 Debian Debug Port Number.png]]

Putty is very populate tool on Windows. [https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html Download putty here.]

Run PUTTY.exe, select Connection type of "Serial" , input COM port found in Device Manager.

Set Parameter like :

[[File:RK3288 Debian Debug Port Config.png|RTENOTITLE]]

Then Click "Open" to start debug console.

= Debug on Ubuntu =

"Kermit" and "MiniCom" are very famous tools on Ubuntu.

 Connect adapter to PC , find COM port :
<pre>$ ls /dev/ttyUSB*
/dev/ttyUSB0
</pre>

== Kermit ==

'''Install Kermit : '''
<pre>sudo apt-get update
sudo apt-get install ckermit
</pre>

'''Config Kermit : '''
<pre>vi $HOME/.kermrc;
</pre>

Input the following content : 
<pre>set line /dev/ttyUSB0
set speed 115200
set carrier-watch off
set handshake none
set flow-control none
robust
set file type bin
set file name lit
set rec  pack 1000
set send pack 1000
set window 5

</pre>

'''Note : '''

Change "/dev/ttyUSB0" according your system, Use Command "ls /dev/ttyUSB*" .

'''Run kermit'''
<pre>sudo kermit
</pre>

= MiniCom =

'''Install MiniCom: '''
<pre>sudo apt-get update
sudo apt-get install minicom
</pre>

'''Run kermit'''
<pre>$ sudo minicom
Welcome to minicom 2.7
OPTIONS: I18n
Compiled on Jan 1 2014, 17:13:19.
Port /dev/ttyUSB0, 15:57:00
Press CTRL-A Z for help on special keys</pre>

According the tips, press CTRL-A, then press Z to show help.
<pre> +-------------------------------------------------------------------+
Minicom Command Summary |
| |
| Commands can be called by CTRL-A <key> |
| |
| Main Functions Other Functions |
| |
| Dialing directory..D run script (Go)....G | Clear Screen.......C |
| Send files.........S Receive files......R | cOnfigure Minicom..O |
| comm Parameters....P Add linefeed.......A | Suspend minicom....J |
| Capture on/off.....L Hangup.............H | eXit and reset.....X |
| send break.........F initialize Modem...M | Quit with no reset.Q |
| Terminal settings..T run Kermit.........K | Cursor key mode....I |
| lineWrap on/off....W local Echo on/off..E | Help screen........Z |
| Paste file.........Y Timestamp toggle...N | scroll Back........B |
| Add Carriage Ret...U |
| |
| Select function or press Enter for none. |
+--------------------------------------------------------------------+</pre>

According the tips, press O to show configuration.
<pre> +-----[configuration]------+
| Filenames and paths |
| File transfer protocols |
| Serial port setup |
| Modem and dialing |
| Screen and keyboard |
| Save setup as dfl |
| Save setup as.. |
| Exit |
+--------------------------+</pre>

Press "↓"， move cursor to "Serial port setup" to Config parameter.

Then press "A"-"G" to set relative content as following :
<pre> +-----------------------------------------------------------------------+
| A - Serial Device  : /dev/ttyUSB0 |
| B - Lockfile Location  : /var/lock |
| C - Callin Program  : |
| D - Callout Program  : |
| E - Bps/Par/Bits  : 115200 8N1 |
| F - Hardware Flow Control : No |
| G - Software Flow Control : No |
| |
| Change which setting? |
+-----------------------------------------------------------------------+</pre>

When configuration is done, back to choose "Save setup as dfl" to save as default configuration.

@@ Line 33: / Line 33: @@
 |}
-[[File:RSB-4710 Debug console.jpg|RTENOTITLE]]
+[[File:RSB4810 debug console.jpg]]
 '''Note&nbsp;:&nbsp;'''

@@ Line 125: / Line 125: @@
-'''Run kermit'''
+'''Run MiniCom'''
 <pre>$ sudo minicom
 Welcome to minicom 2.7

How to debug RK3568 - Revision history

Yunjin.jiang at 02:28, 26 May 2023

Yunjin.jiang at 02:02, 24 November 2021

Yunjin.jiang: Created page with "= USB2UART Bridge = There are plenty types of usb to uart bridge in the market . Most of them use the following chip : *[https://www.silabs.com/products/development-too..."