Difference between revisions of "Getting Started with BPI-R3"

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[[zh:快速上手 香蕉派 BPI-R3]]
 
[[zh:快速上手 香蕉派 BPI-R3]]
 
==Introduction==
 
==Introduction==
−
[[File:Banana_pi_751.jpg]]
 
  
−
Banana Pi BPI-R3 Router board with MediaTek MT7986(Filogic 830) quad core ARM A53 + MT7531A chip design ,2G DDR RAM ,8G eMMC flash onboard,It is a very high performance open source router development board,support Wi-Fi 6/6E 2.4G wifi use MT7975N and 5G wifi use MT7975P, support 2 SFP 2.5GbE port, and 5 GbE network port.
+
Banana Pi BPI-R3 Mini Router board with MediaTek MT7986(Filogic 830) quad core ARM A53 chip design ,2G DDR RAM ,8G eMMC flash onboard,It is a very high performance open source router development board,support Wi-Fi6 2.4G wifi use MT7975N and 5G wifi use MT7975P, support 2 2.5GbE network port.
  
 
==MediaTek MT7986(Filogic 830)==
 
==MediaTek MT7986(Filogic 830)==
  
−
The MT7986(Filogic 830) integrates four Arm Cortex-A53 cores up to 2GHz with up to 18,000 DMIPs of processing power and 6Gbps of dual 4x4 Wi-Fi 6/6E connectivity. It has two 2.5g Ethernet interfaces and serial peripheral interfaces (SPI). Filogic 830‘s built-in hardware acceleration engine enables fast and reliable Wi-Fi offloading and wireless network connection. In addition, the chip supports Mediatek FastPath™ technology, which is suitable for games, AR/VR and other low-latency applications.
+
The MT7986(Filogic 830) integrates four Arm Cortex-A53 cores up to 2GHz with up to 18,000 DMIPs of processing power and 6Gbps of dual 4x4 Wi-Fi6 connectivity. It has two 2.5g Ethernet interfaces and serial peripheral interfaces (SPI). Filogic 830‘s built-in hardware acceleration engine enables fast and reliable Wi-Fi offloading and wireless network connection. In addition, the chip supports Mediatek FastPath™ technology, which is suitable for games, AR/VR and other low-latency applications.
−
 
 
−
Wi-fi 6E has many advantages over its predecessors, including lower latency, larger bandwidth capacity and faster transmission rates. Wireless network devices supporting the 6GHz band mainly use 160MHz wide channel and 6GHz uncongested bandwidth to provide multigigabit transmission and low-latency wi-fi connection, providing reliable wireless network for streaming media, games, AR/VR and other applications.
 
  
 +
Wi-fi 6 has many advantages over its predecessors, including lower latency, larger bandwidth capacity and faster transmission rates. Wireless network devices supporting the 6GHz band mainly use 160MHz wide channel and 6GHz uncongested bandwidth to provide multigigabit transmission and low-latency wi-fi connection, providing reliable wireless network for streaming media, games, AR/VR and other applications.
  
 
==Key Features==
 
==Key Features==
  
−
*. MediaTek MT7986(Filogic 830) Quad core ARM Cortex A53+MT7531 chip design
+
* MediaTek MT7986(Filogic 830) Quad core ARM Cortex A53
−
*. Wifi 6/6E 4x4 2.4G Wifi(MT7975N) +4x4 5G Wifi(MT7975P)
+
* Wifi 6 2.4G/5G（MT7976C）
−
*. 2G DDR RAM
+
* 2G DDR RAM
−
*. 8G eMMC flash
+
* 8G eMMC flash
−
*. 2 SFP 2.5GbE
+
* 128MB Nand flash
−
*. 5 GbE network port  
+
* 2x 2.5GbE network port
−
*. POE support (optional)
+
* 1x M.2 Key B USB inerface
−
*. Mini PCIe via USB
+
* 1x M.2 KEY M PCIe inerface
−
*. M.2 KEY-E PCIe inerface
+
* 1x USB2.0 interface
−
*. Mciro SD card interfact
 
−
*. 26 PIN GPIO
 
  
 
=Development=
 
=Development=
Line 31: Line 27:
 
   * Prepare 8G/above TF card, USB-Serial interface, Ubuntu System
 
   * Prepare 8G/above TF card, USB-Serial interface, Ubuntu System
 
   * Using your USB-Serial Connect debug console on BPI-R3
 
   * Using your USB-Serial Connect debug console on BPI-R3
 +
  Note: '''Debug Uart 3.3v TTL,Baud: 115200'''.
 +
  * Default IP address for LAN port: '''192.168.1.1'''
 +
  * User name/password: '''pi/bananapi''' ,'''root/bananapi'''.
 +
  Or the user is '''root without a password'''.
 +
  * WIFI: '''MTK_MT7986_AP_AX6000_2.4G'''and'''MTK_MT7986_AP_AX6000_5G'''
 +
  [[Image:R3_debug_console.jpg|320px]]
 +
 +
  * R3 bootstrap and device select Jumper Setting
 +
  [[Image:BPI-R3-Jumper.png|320px]]
  
−
  [[Image:R3_debug_console.jpg|320px]]
+
  Note: SW1-A and SW1-B is for boot strap selecting;
 +
        SW1-C is that SPI-Nand or SPI-Nor Device is connected to CPU's SPI bus;
 +
        SW1-D is that SD Card or EMMC device is connected tp CPU's EMMC bus.
 +
 +
  * Examples:
 +
    All Jumper is High.
 +
    [[Image:BPI-R3-Jumper-ALL-High.png|320px]]
 +
 
 +
    All Jumper is Low.
 +
    [[Image:BPI-R3-Jumper-ALL-Low.png|320px]]
  
 
===How to burn image to SD card===
 
===How to burn image to SD card===
Line 51: Line 65:
 
     2. Install the tools into Windows computer.
 
     2. Install the tools into Windows computer.
 
     3. flash image into SD card.
 
     3. flash image into SD card.
 +
 
 +
C. Change Boot Jumper to boot from SD, Enable SD Card Device.
 +
    [[Image:BPI-R3-Jumper-ALL-High.png|320px]]
  
−
====How to burn image to onboard eMMC====
+
===How to burn image to onboard eMMC===
 
   Note: because SD card and EMMC device share one SOC's interface, you need flash one SD image firstly, then R3 boot from SD card, then flash nand image into Nand, then change boot strap to boot from nand,  you need flash EMMC image into EMMC. Finally you change bootstrap to boot from EMMC.
 
   Note: because SD card and EMMC device share one SOC's interface, you need flash one SD image firstly, then R3 boot from SD card, then flash nand image into Nand, then change boot strap to boot from nand,  you need flash EMMC image into EMMC. Finally you change bootstrap to boot from EMMC.
  
Line 67: Line 84:
 
   4. Execute following command to enable and copy image to nand flash:
 
   4. Execute following command to enable and copy image to nand flash:
 
     * mtd erase /dev/mtd0
 
     * mtd erase /dev/mtd0
−
     * dd if=mtk-bpi-r3-NAND-WAN1-SFP1-20220619-single-image.bi of=/dev/mtdblock0
+
     * dd if=mtk-bpi-r3-NAND-WAN1-SFP1-20220619-single-image.bin of=/dev/mtdblock0
  
 
   5. Shutdown, remove SD card, and change bootstrap to boot from nand flash and change SD/EMMC switch jumper to EMMC, restart the board from Nand Flash.
 
   5. Shutdown, remove SD card, and change bootstrap to boot from nand flash and change SD/EMMC switch jumper to EMMC, restart the board from Nand Flash.
 +
    Note: Enable EMMC device, boot strap is from nand
 +
    [[Image:BPI-R3-Jumper-Flash-EMMC.png|320px]]
  
 
   6. repeat step 3, mount u-disk to /mnt, Execute following command to enable and copy image to EMMC device:
 
   6. repeat step 3, mount u-disk to /mnt, Execute following command to enable and copy image to EMMC device:
Line 79: Line 98:
  
 
   7. power off R3 board, remove u-disk driver, change bootstrap to boot from emmc device.
 
   7. power off R3 board, remove u-disk driver, change bootstrap to boot from emmc device.
 +
    Note: Enable EMMC device, boot strap is from EMMC.
 +
    [[Image:BPI-R3-Jumper-Boot-EMMC.png|320px]]
  
 
=== Network-Configuration===
 
=== Network-Configuration===
Line 221: Line 242:
 
* echo out > /sys/class/gpio/gpio433/direction
 
* echo out > /sys/class/gpio/gpio433/direction
 
* echo 1 > /sys/class/gpio/gpio433/value
 
* echo 1 > /sys/class/gpio/gpio433/value
 +
 +
===FAN===
 +
 +
[[Image:FAN.png]]
 +
 +
* R317 for 5V FAN and R318 for 12V FAN.
 +
* CN23 supports PWM control while CN22 does not support.
  
 
====PWM FAN Control====
 
====PWM FAN Control====
Line 234: Line 262:
  
 
[[Image:BPI-R3-miniPCIe-Slot-EC25.jpg]]
 
[[Image:BPI-R3-miniPCIe-Slot-EC25.jpg]]
 +
 +
===SFP===
 +
After high and low temperature test, the following modules are suppoted by BPI-R3:
 +
 +
[[Image:SFP.png]]
 +
 +
===4G&5G===
 +
* BPI-R3 supports 4G LTE EC25.
 +
* If you want to use 5G on BPI-R3:
 +
    1. Insert 5G dongle into USB3.0.
 +
    2. Connect RG200U-CN to mini PCIe, connect SoC through USB2.0(speed limited).
 +
    3. Make an RG200U-CN LGA adapter board and insert it into M.2 KEY M.
 +
Note: The availability of 4G/5G depends on the local carrier frequency band.
  
 
===Ap mode on BPI-R3===
 
===Ap mode on BPI-R3===
Line 239: Line 280:
 
* ra0  is MT7986a 2.4G wifi
 
* ra0  is MT7986a 2.4G wifi
 
* rax0 is MT7986a 5G wifi
 
* rax0 is MT7986a 5G wifi
 +
 +
===Wifi & Serial cable===
 +
* '''If the chip type of serial cable is pl2303, the driver fails to load the firmware apparently and thus the wifi can't work.'''
 +
* '''Other types including cp2102,ch340 and FDTI are all available, serial cable vlotage must be 3.3v LVTTL standard.
 +
'''
 +
'''UART_TX0 is the Boot Strapping PIN and must be kept low during power-on.'''
 +
 +
[[File:Strapping.png|720px]]
  
 
==FAQ==
 
==FAQ==
 
*MT7986a Reference Manual for Develope Board(BPi)
 
*MT7986a Reference Manual for Develope Board(BPi)
 
::Google Drive：https://drive.google.com/file/d/1biSJmxnIpNzQroYDg9mtPtSTAv4i0DFf/view?usp=sharing
 
::Google Drive：https://drive.google.com/file/d/1biSJmxnIpNzQroYDg9mtPtSTAv4i0DFf/view?usp=sharing
 +
===TTL Voltage===
 +
:: The debug-uart TTL is tolerant to 3.3V.
  
 
='''Reference Link'''=
 
='''Reference Link'''=
  
 
http://forum.banana-pi.org/
 
http://forum.banana-pi.org/

Latest revision as of 18:02, 5 May 2024

Introduction

Banana Pi BPI-R3 Mini Router board with MediaTek MT7986(Filogic 830) quad core ARM A53 chip design ,2G DDR RAM ,8G eMMC flash onboard,It is a very high performance open source router development board,support Wi-Fi6 2.4G wifi use MT7975N and 5G wifi use MT7975P, support 2 2.5GbE network port.

MediaTek MT7986(Filogic 830)

The MT7986(Filogic 830) integrates four Arm Cortex-A53 cores up to 2GHz with up to 18,000 DMIPs of processing power and 6Gbps of dual 4x4 Wi-Fi6 connectivity. It has two 2.5g Ethernet interfaces and serial peripheral interfaces (SPI). Filogic 830‘s built-in hardware acceleration engine enables fast and reliable Wi-Fi offloading and wireless network connection. In addition, the chip supports Mediatek FastPath™ technology, which is suitable for games, AR/VR and other low-latency applications.

Wi-fi 6 has many advantages over its predecessors, including lower latency, larger bandwidth capacity and faster transmission rates. Wireless network devices supporting the 6GHz band mainly use 160MHz wide channel and 6GHz uncongested bandwidth to provide multigigabit transmission and low-latency wi-fi connection, providing reliable wireless network for streaming media, games, AR/VR and other applications.

Key Features

  • MediaTek MT7986(Filogic 830) Quad core ARM Cortex A53
  • Wifi 6 2.4G/5G（MT7976C）
  • 2G DDR RAM
  • 8G eMMC flash
  • 128MB Nand flash
  • 2x 2.5GbE network port
  • 1x M.2 Key B USB inerface
  • 1x M.2 KEY M PCIe inerface
  • 1x USB2.0 interface

Development

Basic Development

Prepare to develop

 * Prepare 8G/above TF card, USB-Serial interface, Ubuntu System
 * Using your USB-Serial Connect debug console on BPI-R3
 Note: Debug Uart 3.3v TTL,Baud: 115200.
 * Default IP address for LAN port: 192.168.1.1
 * User name/password: pi/bananapi ,root/bananapi.
 Or the user is root without a password.
 * WIFI: MTK_MT7986_AP_AX6000_2.4GandMTK_MT7986_AP_AX6000_5G
 R3 debug console.jpg

 * R3 bootstrap and device select Jumper Setting
 BPI-R3-Jumper.png

  Note: SW1-A and SW1-B is for boot strap selecting;
        SW1-C is that SPI-Nand or SPI-Nor Device is connected to CPU's SPI bus;
        SW1-D is that SD Card or EMMC device is connected tp CPU's EMMC bus.

  * Examples:
    All Jumper is High.
    BPI-R3-Jumper-ALL-High.png

    All Jumper is Low.
    BPI-R3-Jumper-ALL-Low.png

How to burn image to SD card

 A. Note: burn image to SD card on linux computer
   1.You could download latest image from our forum
   * Here is the example image link: 
 
   2.Install bpi-tools on your Ubuntu. If you can't access this URL or any other problems, please go to bpi-tools repo and install this tools manually.
   * apt-get install pv
   * curl -sL https://github.com/BPI-SINOVOIP/bpi-tools/raw/master/bpi-tools | sudo -E bash
 
   3.After you download the image, insert your TF card into your Ubuntu
   * Execute "bpi-copy xxx.img /dev/sdx" to install image on your TF card
 
   4.After step 3, then you can insert your TF card into R3, and press power button to setup R3
 B. Note: burn image to SD card on windows computer
   1. Download the tools from the website:   https://sourceforge.net/projects/win32diskimager/
   2. Install the tools into Windows computer.
   3. flash image into SD card.
 
C. Change Boot Jumper to boot from SD, Enable SD Card Device.
   BPI-R3-Jumper-ALL-High.png

How to burn image to onboard eMMC

 Note: because SD card and EMMC device share one SOC's interface, you need flash one SD image firstly, then R3 boot from SD card, then flash nand image into Nand, then change boot strap to boot from nand,  you need flash EMMC image into EMMC. Finally you change bootstrap to boot from EMMC.

 Before burning image to eMMC, please prepare a SD card with flashed bootable image and a USB disk. Let's take OpenWrt image (mtk-bpi-r3-SD-WAN1-SFP1-20220619-single-image.img, mtk-bpi-r3-NAND-WAN1-SFP1-20220619-single-image.bin, bl2_emmc.img, mtk-bpi-r3-EMMC-WAN1-SFP1-20220619-single-image.img) for example, the steps are below:

 1. Insert the flashed SD card and power on to start the board.(the image "mtk-bpi-r3-SD-WAN1-SFP1-20220619-single-image.img" on the SD card can be OpenWrt or other linux OS like ubuntu...)

 2. Copy Nand bootable and EMMC boot OpenWrt image(mtk-bpi-r3-NAND-WAN1-SFP1-20220619-single-image.bin, bl2_emmc.img, mtk-bpi-r3-EMMC-WAN1-SFP1-20220619-single-image.img) to USB disk, if the image is compressed please uncompress it before copying to USB disk.

 3. Plug in USB disk to the board, and mount the USB to /mnt or other directory as follows: (you can skip mounting if it is mounted automatically)
    * mount -t vfat /dev/sda1 /mnt 
    * change your directory to the mounting point, here is : cd /mnt

 4. Execute following command to enable and copy image to nand flash:
    * mtd erase /dev/mtd0
    * dd if=mtk-bpi-r3-NAND-WAN1-SFP1-20220619-single-image.bin of=/dev/mtdblock0

 5. Shutdown, remove SD card, and change bootstrap to boot from nand flash and change SD/EMMC switch jumper to EMMC, restart the board from Nand Flash.
    Note: Enable EMMC device, boot strap is from nand
    BPI-R3-Jumper-Flash-EMMC.png

 6. repeat step 3, mount u-disk to /mnt, Execute following command to enable and copy image to EMMC device:
    * mount -t vfat /dev/sda1 /mnt
    * echo 0 > /sys/block/mmcblk0boot0/force_ro
    * dd if=bl2_emmc.img of=/dev/mmcblk0boot0
    * dd if=mtk-bpi-r3-EMMC-WAN1-SFP1-20220619-single-image.img of=/dev/mmcblk0
    * mmc bootpart enable 1 1 /dev/mmcblk0

 7. power off R3 board, remove u-disk driver, change bootstrap to boot from emmc device.
    Note: Enable EMMC device, boot strap is from EMMC.
    BPI-R3-Jumper-Boot-EMMC.png

Network-Configuration

BPI-R3 network interface.jpg

root@OpenWrt:/# ifconfig

br-lan Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
         inet6 addr: fe80::eca1:57ff:fe81:ca19/64 Scope:Link
         inet6 addr: fd63:8bea:d5ce::1/60 Scope:Global
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:2418 (2.3 KiB)

br-wan Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         inet6 addr: fe80::eca1:57ff:fe81:ca19/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:8538 (8.3 KiB)

eth0 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         inet6 addr: fe80::eca1:57ff:fe81:ca19/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:32 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:4408 (4.3 KiB)
         Interrupt:124

eth1 Link encap:Ethernet HWaddr 4A:BB:84:B4:5D:3F 

         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:8674 (8.4 KiB)
         Interrupt:124

lan0 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lan1 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lan2 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lan3 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lan4 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lan5 Link encap:Ethernet HWaddr EE:A1:57:81:CA:19 

         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:2418 (2.3 KiB)

lo Link encap:Local Loopback 

         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:65536  Metric:1
         RX packets:56 errors:0 dropped:0 overruns:0 frame:0
         TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:4368 (4.2 KiB)  TX bytes:4368 (4.2 KiB)

ra0 Link encap:Ethernet HWaddr 00:0C:43:26:60:38 

         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
         Interrupt:6

rax0 Link encap:Ethernet HWaddr 02:0C:43:36:60:38 

         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

root@OpenWrt:/# brctl show br-wan

bridge name bridge id STP enabled interfaces br-wan 7fff.eea15781ca19 no lan0, eth1

root@OpenWrt:/# brctl show br-lan

bridge name bridge id STP enabled interfaces br-lan 7fff.eea15781ca19 no lan4, rax0, lan2, lan5, ra0, lan3, lan1

root@OpenWrt:/#

Advanced Development

GPIO

26 Pins Definition

R3 gpio 40.jpg

GPIO Control

  • echo xxx > /sys/class/gpio/export
  • echo in/out > /sys/class/gpio/gpioxxx/direction
  • echo 0/1 > /sys/class/gpio/gpioxxx/value

Check the base gpio, you could see mine is 411

BPI-R3-GPIO-Base.jpg

For example: if you want to change gpio 22 as out highlevel, you need input commands like this：

  • echo 433（22+411） > /sys/class/gpio/export
  • echo out > /sys/class/gpio/gpio433/direction
  • echo 1 > /sys/class/gpio/gpio433/value

FAN

FAN.png

  • R317 for 5V FAN and R318 for 12V FAN.
  • CN23 supports PWM control while CN22 does not support.

PWM FAN Control

  • echo 0 > /sys/class/pwm/pwmchip0/export
  • echo 10000 > /sys/class/pwm/pwmchip0/pwm0/period
  • echo 5000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle
  • echo normal > /sys/class/pwm/pwmchip0/pwm0/polarity
  • echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable

miniPCIe slot

currently, miniPCIe slot only support one USB 4G module, example: EC25 when you insert one EC25 module, you may check it.

BPI-R3-miniPCIe-Slot-EC25.jpg

SFP

After high and low temperature test, the following modules are suppoted by BPI-R3:

SFP.png

4G&5G

  • BPI-R3 supports 4G LTE EC25.
  • If you want to use 5G on BPI-R3:
   1. Insert 5G dongle into USB3.0.
   2. Connect RG200U-CN to mini PCIe, connect SoC through USB2.0(speed limited).
   3. Make an RG200U-CN LGA adapter board and insert it into M.2 KEY M.

Note: The availability of 4G/5G depends on the local carrier frequency band.

Ap mode on BPI-R3

  • ra0 is MT7986a 2.4G wifi
  • rax0 is MT7986a 5G wifi

Wifi & Serial cable

  • If the chip type of serial cable is pl2303, the driver fails to load the firmware apparently and thus the wifi can't work.
  • Other types including cp2102,ch340 and FDTI are all available, serial cable vlotage must be 3.3v LVTTL standard.

UART_TX0 is the Boot Strapping PIN and must be kept low during power-on.

Strapping.png

FAQ

  • MT7986a Reference Manual for Develope Board(BPi)
Google Drive：https://drive.google.com/file/d/1biSJmxnIpNzQroYDg9mtPtSTAv4i0DFf/view?usp=sharing

TTL Voltage

The debug-uart TTL is tolerant to 3.3V.

Reference Link

http://forum.banana-pi.org/

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