Rock4

2023-03-25T03:04:39Z

Stephen:

{{rock4_header}}

{{Languages|rock4}}

__NOTOC__

<div class="col-md-12 ">
<div class="col-md-8">
=ROCK 4=

ROCK 4 is a series of Rockchip RK3399 series SoC based SBC(Single Board Computer) in a small form factor by [[Special:SpecialContact/| Radxa]]. It can run android or some Linux distributions as well as BSD distributions.

ROCK 4 series feature a dual core Cortex-A72 + quad core Cortex-A53 ARM processor, 64bit LPDDR4, up to 4K@60 HDMI, MIPI DSI, MIPI CSI, 3.5mm jack with mic, USB Port, GbE LAN, 40-pin color expansion header, RTC. ROCK 4 series is first introduced in 2018 with ROCK 4 Model A and Model B, more models are added during the time:

* ROCK 4A and 4B - 2018
* ROCK 4C - 2020
* ROCK 4A Plus and 4B Plus - 2021
* ROCK 4C Plus - 2022
* ROCK 4 SE - 2022

All models are supported by Radxa team until 2029.

</div>

<div class="col-md-4 ">

<div class="panel panel-meadow-white">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-star"></i> [[community_updates | What's new]]</h3> </div>
<div class="panel-body">

{{Community_updates}}

</div>
</div>

</div>
</div>

<div class="col-md-12 ">

<div class="col-md-3">
<div class="panel panel-meadow">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i> [[rock4/4se | ROCK 4 SE]]</h3> </div>
<div class="panel-body">
<div class="thumbnail ">[[File:ROCK_4SE.png | 300px | link=rock4/4se]]</div>
Powered by RK3399-T(2022)
</div>
</div>
</div>

<div class="col-md-3">
<div class="panel panel-meadow">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i> [[rock4/4cplus | ROCK 4C Plus]]</h3> </div>
<div class="panel-body">
<div class="thumbnail ">[[File:ROCK_4C_Plus.png | 300px | link=rock4/4cplus]]</div>
Powered by RK3399-T(2022)
</div>
</div>
</div>

<div class="col-md-3">
<div class="panel panel-meadow">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i> [[rock4/4abplus | ROCK 4A/4B Plus]]</h3> </div>
<div class="panel-body">
<div class="thumbnail ">[[ File:ROCK_4AB_Plus.gif | 300px | link=rock4/4abplus ]]</div>
Powered by OP1(2021)
</div>
</div>
</div>

<div class="col-md-3">
<div class="panel panel-meadow">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i> [[rock4/4ab | ROCK 4A/4B]]</h3> </div>
<div class="panel-body">
<div class="thumbnail ">[[File:ROCK_4AB.gif | 300px | link=rock4/4ab]]</div>
Powered by RK3399(2018)
</div>
</div>
</div>

<div class="col-md-3">
<div class="panel panel-meadow">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i> [[rock4/4c | ROCK 4C]]</h3> </div>
<div class="panel-body">
<div class="thumbnail ">[[File:ROCK_4C.png | 300px | link=rock4/4c]]</div>
Powered by RK3399(2020)
</div>
</div>
</div>

</div>

Rock4/4se

2023-03-25T03:04:02Z

Stephen: Created page with "{{rock4_header}} {{Languages|rock4/4se}} __NOTOC__ <div class="col-md-12 "> <div class="col-md-8 "> = ROCK 4 SE = This is the documentation for ROCK 4 SE, written by Rad..."

{{rock4_header}}

{{Languages|rock4/4se}}

__NOTOC__

<div class="col-md-12 ">
<div class="col-md-8 ">

= ROCK 4 SE =
This is the documentation for ROCK 4 SE, written by Radxa Team with community contributions.

ROCK 4 SE is powered by RK3399-T with a dual core Cortex-A72@1.5GHz + quad core Cortex-A53@1Ghz ARM processor, 64bit LPDDR4, up to 4K@60 HDMI, MIPI DSI, MIPI CSI, 3.5mm jack with mic, USB Port, GbE LAN, 40-pin color expansion header, RTC. ROCK 4 SE is introduced in 2022.

=== Close look of ROCK 4 SE ===

[[File:rock4se_top.png | 400px]][[File:rock4se_bottom.png|400px]]

=== <span id="get_start_specs"></span> Features ===

{| class="wikitable"
! colspan="1" width=20% | Model
! colspan="1" width=80% | ROCK 4 SE
|-
! Processor
| colspan="1" | 64bits hexa core processor<br />Rockchip RK3399-T<br />Dual Cortex-72, frequency '''1.5GHz''' with qual Cortex-A53, frequency '''1.0GHz'''<br />Mali T860MP4 gpu, support OpenGL ES 1.1/2.0/3.0/3.1/3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11.
|-
! Memory
| colspan="1" | LPDDR4<br />64bit dual channel LPDDR4@3200Mb/s, 1GB/2GB/4GB optioal
|-
! Storage
| colspan="1" | eMMC connector <br />μSD card (μSD slot supports up to 256 GB μSD card)<br />M.2 SSD (M.2 connector supports up to 2T M2 NVME SSD)
|-
! Display
| colspan="1" | Standard HDMI 2.0 up to 4k@60<br />MIPI DSI 2 lanes via FPC connector<br />HDMI and MIPI DSI can work at the same time, support mirror mode or extend mode.
|-
! Audio
| colspan="1" | 3.5mm jack with mic<br />HD codec that supports up to 24-bit/96KHz audio.
|-
! Camera
| colspan="1" | MIPI CSI 2 lanes via FPC connector, support up to 800 MP camera(1mm pitch connector).
|-
! Wireless
| colspan="1" | 802.11 ac wifi<br />BT 5.0<br />with on board or external antenna
|-
! USB
| colspan="1" | USB 3.0 OTG X1, hardware switch for host/device switch, upper one<br />USB 3.0 HOST X1, dedicated USB 3.0 channel, lower one<br />USB 2.0 HOST X2
|-
! Ethernet
| colspan="1" | GbE LAN with Power over Ethernet (PoE) support<br />additional HAT is required for powering from PoE
|-
! IO
| colspan="1" | 40-pin expansion header<br />2 x UART<br />2 x SPI bus<br />3 x I2C bus<br />1 x PCM/I2S<br />1 x SPDIF<br />2 x PWM<br />1 x ADC<br />6 x GPIO<br />2 x 5V DC power in<br />2 x 3.3V DC power in
|-
! Others
| colspan="1" | RTC<br />RTC battery connector for time backup(optional)
|-
! Power
| colspan="1" | USB PD, support USB Type C PD 2.0, 9V/2A, 12V/2A.<br />Qualcomm® Quick ChargeTM: Supports QC 3.0/2.0 adapter, 9V/2A, 12V/1.5A
|-
! Size
| colspan="1" | 85mm x 54mm
|}

=== Getting start guide ===

Follow the [[Rock4/getting_started| Guide]] to start using your ROCK 4 SE.

=== Use Radxa Debian ===

Follow the [[Rock4/Debian | Radxa Debian Guide]]

=== Download and install third party OS ===

Find [[Rock4/downloads | more OS]] by the Radxa friends and the community.

=== Find supported accessories ===

Discover the [[Rock4/hardware#accessories | accessories]] that just work on ROCK 4 SE

=== Learn more about the hardware details ===

Learn more about the ROCK 4 SE [[Rock4/hardware/product | connectors and pinout]]

Check the [[Rock4/hardware#datasheet | data sheets]] of the components used on ROCK 4 SE.

</div> 

<div class="col-md-4 ">

<div class="thumbnail ">[[File:rock4se_animation.png | 440px]]</div>

<div class="panel panel-hearts-white">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-hand-o-up"></i>[[rock4/getting_started | Setup/Quick start ]]</h3> </div>
<div class="panel-body">
* [[rock4/getting_started | Getting started with ROCK 4]], including what you need and how to get it booted.
* [[Rock4/hardware/gpio| GPIO pinout]]
* [[Rock4/backup | Backup and Restore your SD card or eMMC module]]
* [[Rock4/hardware/M2_extend | How to mount SSD with M2 extension board]]

</div>
</div> 

<div class="panel panel-mango-white">
<div class="panel-heading"> <h3 class="panel-title"><i class="fa fa-star"></i> [[community_updates | What's new]]</h3> </div>
<div class="panel-body">
{{Community_updates}}
</div>
</div> 

<div class="panel panel-cocktail-white">
<div class="panel-heading"><h3 class="panel-title"><i class="fa fa-users"></i> Community</h3></div>
<div class="panel-body">
* Forum: http://forum.radxa.com
* Discord: https://rock.sh/go
* Telegram Group: https://t.me/rockpi4
* [[rockpi4/contribute | How to contribute to this wiki]]
* Wechat Group: [[File:Wechat_group_qrcode.JPG | 120px ]]

</div>
</div> 

</div> 

</div>

Rock3/dev/usb-gadget

2023-03-18T07:48:05Z

Stephen:

{{rock3_header}}

{{Languages|rock3/dev/usb-gadget}}

[[rock3 | ROCK 3]] > [[rock3/dev | Development]] > [[rock3/dev/usb-gadget | USB Gadget Support]]

=== USB Gadget Support ===

==== USB NET RNDIS ====

===== Hardware Connection =====

{| class="wikitable"
|-
! ROCK 3C || <---> || ROCK 5B (Debian11)
|-
| Type-A OTG port || <---> || Type-A 3.0 Host port
|}

===== Software Configuration =====

Step1: Install essential tools

root@rock-3c:~# apt update -y && apt install -y net-tools iperf

Step2: Enable USB OTG function (Do this only once)

root@rock-3c:~# rsetup

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Please select an option below: │
│ │
│ System Maintaince │
│ Hardware │
│ Overlays │
│ Connectivity │
│ User Settings │
│ Localization │
│ About │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Manage overlays'''

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Configure Device Tree Overlay │
│ │
│ Manage overlays │
│ View overlay info │
│ Install overlay from source │
│ Reset overlays │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Set OTG port to OTG mode'''

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Please select overlays: │
│ │
│ [ ] Enable PWM14-M0 │
│ [ ] Enable PWM14-M1 ▒ │
│ [ ] Enable PWM15-M1 ▒ │
│ [ ] Enable PWM8-M0 ▒ │
│ [ ] Enable PWM9-M0 ▒ │
│ [ ] Enable Radxa 5-inch Touchscreen ▒ │
│ [ ] Enable Raspberry Pi 7-inch Touchscreen ▒ │
│ [ ] Enable Raspberry Pi Camera v1.3 ▒ │
│ [ ] Enable Raspberry Pi Camera v2 ▒ │
│ [ ] Enable UART2-M0 ▒ │
│ [ ] Enable UART3-M0 ▒ │
│ [ ] Enable UART4-M1 ▒ │
│ [ ] Enable UART5-M1 ▒ │
│ [ ] Enable UART9-M1 ▒ │
│ [ ] Enable spidev on SPI3-M1 over CS0 │
│ [*] Set OTG port to OTG mode │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Ok'''' to confirm.

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ │
│ Selected overlays will be enabled at next boot. │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Click <code>Esc</code> to exit the window.

Reboot ROCK 3C.

root@rock-3c:~# reboot

Step3: Load kernel module

<pre>
root@rock-3c:~# modprobe g_ether
root@rock-3c:~# dmesg -c
[ 108.290807] using random self ethernet address
[ 108.290820] using random host ethernet address
[ 108.292182] usb0: HOST MAC 9a:ec:b8:df:56:60
[ 108.292322] usb0: MAC 52:4c:1e:5e:dd:aa
[ 108.292382] using random self ethernet address
[ 108.292391] using random host ethernet address
[ 108.292504] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[ 108.292513] g_ether gadget: g_ether ready
[ 108.403372] dwc3 fcc00000.dwc3: device reset
[ 108.530261] dwc3 fcc00000.dwc3: device reset
[ 108.685170] g_ether gadget: high-speed config #2: RNDIS
</pre>

Step 4: Bring up the usb0 device

<pre>
root@rock-3c:~# ifconfig usb0 up
</pre>

Now you should have usb0 on ROCK 3C enabled.

Step 5: Check usb0 network card on ROCK 5B.

On ROCK 5B Debian11, the '''dmesg''' gives something like below:

<pre>
root@rock-5b:~# dmesg -c
[ 334.470377] usb 2-1: new high-speed USB device number 2 using ehci-platform
[ 334.620061] usb 2-1: New USB device found, idVendor=0525, idProduct=a4a2, bcdDevice= 4.19
[ 334.620088] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 334.620107] usb 2-1: Product: RNDIS/Ethernet Gadget
[ 334.620125] usb 2-1: Manufacturer: Linux 4.19.193-1-rk356x with dwc3-gadget
[ 334.634014] rndis_host 2-1:2.0 usb0: register 'rndis_host' at usb-fc880000.usb-1, RNDIS device, c2:e5:aa:9d:8f:e0
</pre>

'''usb0''' is the "USB network card" for ROCK 3C and ROCK 5B

Step 6: Setup USB Network

On ROCK 3C

<pre>
root@rock-3c:~# IP=10.0.1.1
root@rock-3c:~# HOST_IP=10.0.1.1
root@rock-3c:~# ifconfig usb0 $IP netmask 255.255.255.0
root@rock-3c:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 usb0
</pre>

On ROCK 5B

<pre>
root@rock-5b:~# HOST_IP=10.0.1.2
root@rock-5b:~# ifconfig usb0 $HOST_IP netmask 255.255.255.0
</pre>

Step 7: Test network via '''ping'''

on ROCK 5B

<pre>
root@rock-5b:~# ifconfig usb0
usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.1.2 netmask 255.255.255.0 broadcast 10.0.1.255
ether c2:e5:aa:9d:8f:e0 txqueuelen 1000 (Ethernet)
RX packets 37 bytes 2464 (2.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 145 bytes 28585 (27.9 KiB)
TX errors 58 dropped 0 overruns 0 carrier 0 collisions 0
</pre>

On ROCK 3C, ping 'ROCK 5B'
<pre>
root@rock-3c:~# ping 10.0.1.2
PING 10.0.1.2 (10.0.1.2) 56(84) bytes of data.
64 bytes from 10.0.1.2: icmp_seq=1 ttl=64 time=0.805 ms
64 bytes from 10.0.1.2: icmp_seq=2 ttl=64 time=0.612 ms
64 bytes from 10.0.1.2: icmp_seq=3 ttl=64 time=0.489 ms
64 bytes from 10.0.1.2: icmp_seq=4 ttl=64 time=0.495 ms
64 bytes from 10.0.1.2: icmp_seq=5 ttl=64 time=0.407 ms
64 bytes from 10.0.1.2: icmp_seq=6 ttl=64 time=0.357 ms
64 bytes from 10.0.1.2: icmp_seq=7 ttl=64 time=0.314 ms
64 bytes from 10.0.1.2: icmp_seq=8 ttl=64 time=0.493 ms
64 bytes from 10.0.1.2: icmp_seq=9 ttl=64 time=0.469 ms
</pre>

Step 8: Test network throughput via 'iperf3'

on ROCK 5B

<pre>
root@rock-5b:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 10.0.1.1, port 32814
[ 5] local 10.0.1.2 port 5201 connected to 10.0.1.1 port 32816
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 26.4 MBytes 222 Mbits/sec
[ 5] 1.00-2.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 2.00-3.00 sec 30.1 MBytes 253 Mbits/sec
[ 5] 3.00-4.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 4.00-5.00 sec 30.0 MBytes 252 Mbits/sec
[ 5] 5.00-6.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 6.00-7.00 sec 29.7 MBytes 249 Mbits/sec
[ 5] 7.00-8.00 sec 30.1 MBytes 253 Mbits/sec
[ 5] 8.00-9.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 9.00-10.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 10.00-10.04 sec 1.05 MBytes 246 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.04 sec 298 MBytes 249 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
</pre>

on ROCK 3C

<pre>
root@rock-3c:~# iperf3 -c 10.0.1.2
Connecting to host 10.0.1.2, port 5201
[ 5] local 10.0.1.1 port 32816 connected to 10.0.1.2 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 28.5 MBytes 239 Mbits/sec 0 238 KBytes
[ 5] 1.00-2.00 sec 30.3 MBytes 254 Mbits/sec 0 238 KBytes
[ 5] 2.00-3.00 sec 29.8 MBytes 250 Mbits/sec 0 238 KBytes
[ 5] 3.00-4.00 sec 30.3 MBytes 254 Mbits/sec 0 238 KBytes
[ 5] 4.00-5.00 sec 30.3 MBytes 254 Mbits/sec 0 259 KBytes
[ 5] 5.00-6.00 sec 30.2 MBytes 253 Mbits/sec 0 259 KBytes
[ 5] 6.00-7.00 sec 29.9 MBytes 251 Mbits/sec 0 283 KBytes
[ 5] 7.00-8.00 sec 29.6 MBytes 249 Mbits/sec 0 296 KBytes
[ 5] 8.00-9.00 sec 30.4 MBytes 255 Mbits/sec 0 296 KBytes
[ 5] 9.00-10.00 sec 30.4 MBytes 255 Mbits/sec 0 416 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 300 MBytes 252 Mbits/sec 0 sender
[ 5] 0.00-10.04 sec 298 MBytes 249 Mbits/sec receiver

iperf Done.
</pre>

Rock3/dev/usb-gadget

2023-03-17T04:17:56Z

Stephen:

{{rock3_header}}

{{Languages|rock3/dev/usb-gadget}}

[[rock3 | ROCK 3]] > [[rock3/dev | Development]] > [[rock3/dev/usb-gadget | USB Gadget Support]]

=== USB Gadget Support ===

==== USB NET RNDIS ====

===== Hardware Connection =====

{| class="wikitable"
|-
! ROCK 3C || <---> || ROCK 5B (Debian11)
|-
| Type-A OTG port || <---> || Type-A 3.0 Host port
|}

===== Software Configuration =====

Step1: Install essential tools

root@rock-3c:~# apt update -y && apt install -y net-tools iperf

Step2: Enable USB OTG function (Do this only once)

root@rock-3c:~# rsetup

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Please select an option below: │
│ │
│ System Maintaince │
│ Hardware │
│ Overlays │
│ Connectivity │
│ User Settings │
│ Localization │
│ About │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Manage overlays'''

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Configure Device Tree Overlay │
│ │
│ Manage overlays │
│ View overlay info │
│ Install overlay from source │
│ Reset overlays │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Set OTG port to OTG mode'''

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ Please select overlays: │
│ │
│ [ ] Enable PWM14-M0 │
│ [ ] Enable PWM14-M1 ▒ │
│ [ ] Enable PWM15-M1 ▒ │
│ [ ] Enable PWM8-M0 ▒ │
│ [ ] Enable PWM9-M0 ▒ │
│ [ ] Enable Radxa 5-inch Touchscreen ▒ │
│ [ ] Enable Raspberry Pi 7-inch Touchscreen ▒ │
│ [ ] Enable Raspberry Pi Camera v1.3 ▒ │
│ [ ] Enable Raspberry Pi Camera v2 ▒ │
│ [ ] Enable UART2-M0 ▒ │
│ [ ] Enable UART3-M0 ▒ │
│ [ ] Enable UART4-M1 ▒ │
│ [ ] Enable UART5-M1 ▒ │
│ [ ] Enable UART9-M1 ▒ │
│ [ ] Enable spidev on SPI3-M1 over CS0 │
│ [*] Set OTG port to OTG mode │
│ │
│ │
│ <Ok> <Cancel> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Select '''Ok'''' to confirm.

<pre>
┌──────────────────────────────────┤ RSETUP ├──────────────────────────────────┐
│ │
│ Selected overlays will be enabled at next boot. │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ │
│ <Ok> │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
</pre>

Click <code>Esc</code> to exit the window.

Reboot ROCK 3C.

root@rock-3c:~# reboot

Step3: Load kernel module

<pre>
root@rock-3c:~# modprobe g_ether
root@rock-3c:~# dmesg -c
[ 108.290807] using random self ethernet address
[ 108.290820] using random host ethernet address
[ 108.292182] usb0: HOST MAC 9a:ec:b8:df:56:60
[ 108.292322] usb0: MAC 52:4c:1e:5e:dd:aa
[ 108.292382] using random self ethernet address
[ 108.292391] using random host ethernet address
[ 108.292504] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[ 108.292513] g_ether gadget: g_ether ready
[ 108.403372] dwc3 fcc00000.dwc3: device reset
[ 108.530261] dwc3 fcc00000.dwc3: device reset
[ 108.685170] g_ether gadget: high-speed config #2: RNDIS
</pre>

Step 4: Bring up the usb0 device

<pre>
root@rock-3c:~# ifconfig usb0 up
</pre>

Now you should have usb0 on ROCK 3C enabled.

Step 5: Check usb0 network card on ROCK 5B.

On ROCK 5B Debian11, the '''dmesg''' gives something like below:

<pre>
root@rock-5b:~# dmesg -c
[ 334.470377] usb 2-1: new high-speed USB device number 2 using ehci-platform
[ 334.620061] usb 2-1: New USB device found, idVendor=0525, idProduct=a4a2, bcdDevice= 4.19
[ 334.620088] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 334.620107] usb 2-1: Product: RNDIS/Ethernet Gadget
[ 334.620125] usb 2-1: Manufacturer: Linux 4.19.193-1-rk356x with dwc3-gadget
[ 334.634014] rndis_host 2-1:2.0 usb0: register 'rndis_host' at usb-fc880000.usb-1, RNDIS device, c2:e5:aa:9d:8f:e0
</pre>

'''usb0''' is the "USB network card" for ROCK 3C and ROCK 5B

Step 6: Setup USB Network

On ROCK 3C

<pre>
root@rock-3c:~# IP=10.0.1.1
root@rock-3c:~# HOST_IP=10.0.1.1
root@rock-3c:~# ifconfig usb0 $IP netmask 255.255.255.0
root@rock-3c:~# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 usb0
</pre>

On ROCK 5B

<pre>
root@rock-5b:~# HOST_IP=10.0.1.2
root@rock-5b:~# ifconfig enp0s20f0u2 $HOST_IP netmask 255.255.255.0
</pre>

Step 7: Test network via '''ping'''

on ROCK 5B

<pre>
root@rock-5b:~# ifconfig usb0
usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.1.2 netmask 255.255.255.0 broadcast 10.0.1.255
ether c2:e5:aa:9d:8f:e0 txqueuelen 1000 (Ethernet)
RX packets 37 bytes 2464 (2.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 145 bytes 28585 (27.9 KiB)
TX errors 58 dropped 0 overruns 0 carrier 0 collisions 0
</pre>

On ROCK 3C, ping 'ROCK 5B'
<pre>
root@rock-3c:~# ping 10.0.1.2
PING 10.0.1.2 (10.0.1.2) 56(84) bytes of data.
64 bytes from 10.0.1.2: icmp_seq=1 ttl=64 time=0.805 ms
64 bytes from 10.0.1.2: icmp_seq=2 ttl=64 time=0.612 ms
64 bytes from 10.0.1.2: icmp_seq=3 ttl=64 time=0.489 ms
64 bytes from 10.0.1.2: icmp_seq=4 ttl=64 time=0.495 ms
64 bytes from 10.0.1.2: icmp_seq=5 ttl=64 time=0.407 ms
64 bytes from 10.0.1.2: icmp_seq=6 ttl=64 time=0.357 ms
64 bytes from 10.0.1.2: icmp_seq=7 ttl=64 time=0.314 ms
64 bytes from 10.0.1.2: icmp_seq=8 ttl=64 time=0.493 ms
64 bytes from 10.0.1.2: icmp_seq=9 ttl=64 time=0.469 ms
</pre>

Step 8: Test network throughput via 'iperf3'

on ROCK 5B

<pre>
root@rock-5b:~# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 10.0.1.1, port 32814
[ 5] local 10.0.1.2 port 5201 connected to 10.0.1.1 port 32816
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 26.4 MBytes 222 Mbits/sec
[ 5] 1.00-2.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 2.00-3.00 sec 30.1 MBytes 253 Mbits/sec
[ 5] 3.00-4.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 4.00-5.00 sec 30.0 MBytes 252 Mbits/sec
[ 5] 5.00-6.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 6.00-7.00 sec 29.7 MBytes 249 Mbits/sec
[ 5] 7.00-8.00 sec 30.1 MBytes 253 Mbits/sec
[ 5] 8.00-9.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 9.00-10.00 sec 30.2 MBytes 253 Mbits/sec
[ 5] 10.00-10.04 sec 1.05 MBytes 246 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.04 sec 298 MBytes 249 Mbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
</pre>

on ROCK 3C

<pre>
root@rock-3c:~# iperf3 -c 10.0.1.2
Connecting to host 10.0.1.2, port 5201
[ 5] local 10.0.1.1 port 32816 connected to 10.0.1.2 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 28.5 MBytes 239 Mbits/sec 0 238 KBytes
[ 5] 1.00-2.00 sec 30.3 MBytes 254 Mbits/sec 0 238 KBytes
[ 5] 2.00-3.00 sec 29.8 MBytes 250 Mbits/sec 0 238 KBytes
[ 5] 3.00-4.00 sec 30.3 MBytes 254 Mbits/sec 0 238 KBytes
[ 5] 4.00-5.00 sec 30.3 MBytes 254 Mbits/sec 0 259 KBytes
[ 5] 5.00-6.00 sec 30.2 MBytes 253 Mbits/sec 0 259 KBytes
[ 5] 6.00-7.00 sec 29.9 MBytes 251 Mbits/sec 0 283 KBytes
[ 5] 7.00-8.00 sec 29.6 MBytes 249 Mbits/sec 0 296 KBytes
[ 5] 8.00-9.00 sec 30.4 MBytes 255 Mbits/sec 0 296 KBytes
[ 5] 9.00-10.00 sec 30.4 MBytes 255 Mbits/sec 0 416 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 300 MBytes 252 Mbits/sec 0 sender
[ 5] 0.00-10.04 sec 298 MBytes 249 Mbits/sec receiver

iperf Done.
</pre>