Difference between revisions of "Ox64"

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m (Added link to video guide - yes I made the video, but it took me ages to piece together the information to get it right so hoping it makes it easier for others to get started with this platform and ultimately build a stronger and larger community.)
(removed tracking ref, moved into the correct section, renamed headline)
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* [https://github.com/arm000/linux-bl808/tree/linux-next/mboxic Kernel] IRQChip, SDCard, and (WIP) USB by arm000, pokey and others
* [https://github.com/arm000/linux-bl808/tree/linux-next/mboxic Kernel] IRQChip, SDCard, and (WIP) USB by arm000, pokey and others
* [https://github.com/openbouffalo/OBLFR OpenBouffalo Firmware] low_load drivers by Fishwaldo and others
* [https://github.com/openbouffalo/OBLFR OpenBouffalo Firmware] low_load drivers by Fishwaldo and others
A video on how to connect to, flash and boot the Ox64 as at 2023-02 (15min) can be found [https://youtube.com/watch?v=czRtF-UNiEY?utm_source=Ox64_wiki here].


Original Linux Images provided by Bouffalo - Very basic '''alpha build''' which are only fit for board bring up and testing purposes.  
Original Linux Images provided by Bouffalo - Very basic '''alpha build''' which are only fit for board bring up and testing purposes.  
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* Input Power: 5V 0.5A microUSB or USB-C port
* Input Power: 5V 0.5A microUSB or USB-C port
* Schematic:
* Schematic:
=== Production version schematic: ===
=== Production version schematic: ===
** Pinout:  
** Pinout:  
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** Some CH340G based adapters work and some don't.
** Some CH340G based adapters work and some don't.


== GitHub/Gitlab ==
== Resources ==
* [https://github.com/bouffalolab/bl808-pac Official Bouffalo BL-808 site]
* A video on how to connect to, flash and boot the Ox64 as at 2023-02 (15min) can be found [https://youtube.com/watch?v=czRtF-UNiEY here].
* [https://github.com/sfranzyshen/arduino-bl808 Community made Arduino Core specifically for the Bouffalo Labs BL808 RISC-V MCU]
 
== Articles and Blogs ==
* [https://gist.github.com/lupyuen/7a0c697b89abccda8e38b33dfe5ebaff First Batch of Ox64 won't appear as USB Serial Port]
* [https://gist.github.com/lupyuen/7a0c697b89abccda8e38b33dfe5ebaff First Batch of Ox64 won't appear as USB Serial Port]
* [https://gist.github.com/lupyuen/2087e9b3fb40aab5e0795bb02a265a3b First Batch of Ox64 tested OK with CH340C/G]
* [https://gist.github.com/lupyuen/2087e9b3fb40aab5e0795bb02a265a3b First Batch of Ox64 tested OK with CH340C/G]
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* [https://thelittleengineerthatcould.blogspot.com/2022/12/the-8-linux-computer-part-2.html The $8 linux computer (with picoprobe-rp2040 programming instructions)]
* [https://thelittleengineerthatcould.blogspot.com/2022/12/the-8-linux-computer-part-2.html The $8 linux computer (with picoprobe-rp2040 programming instructions)]
* [https://github.com/p4ddy1/pine_ox64/blob/main/build_toolchain_macos.md Building the Xuantie GNU Toolchain for Ox64 on macOS and Apple Silicon]
* [https://github.com/p4ddy1/pine_ox64/blob/main/build_toolchain_macos.md Building the Xuantie GNU Toolchain for Ox64 on macOS and Apple Silicon]
Git repositories:
* [https://github.com/bouffalolab/bl808-pac Official Bouffalo BL-808 site]
* [https://github.com/sfranzyshen/arduino-bl808 Community made Arduino Core specifically for the Bouffalo Labs BL808 RISC-V MCU]


== Development Efforts ==
== Development Efforts ==
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* [https://twitter.com/btashton/status/1586381334439923713?t=w5xRRUR74HGK2O1Zg_aFyw&s=19 Brennan Ashton is porting Apache NuttX RTOS and OpenAMP (Asymmetric Multiprocessing) to BL808]
* [https://twitter.com/btashton/status/1586381334439923713?t=w5xRRUR74HGK2O1Zg_aFyw&s=19 Brennan Ashton is porting Apache NuttX RTOS and OpenAMP (Asymmetric Multiprocessing) to BL808]
* [https://twitter.com/thanos_engine/status/1585153938092761093 Phone Concept for BL808]
* [https://twitter.com/thanos_engine/status/1585153938092761093 Phone Concept for BL808]


[[Category:Ox64]] [[Category:Bouffalo BL808]]
[[Category:Ox64]] [[Category:Bouffalo BL808]]

Revision as of 00:34, 12 February 2023

The Ox64

The Ox64 is a RISC-V based Single Board Computer powered by Bouffalo Lab BL808 C906 64-Bit RISC-V CPU, 32-Bit CPU, embedded 64MB PSRAM memory and build-on 3 radio RF (Wifi, BT, Zigbee). It provides breadboard friendly form factor, MicroSD Card slot, USB 2.0, and many other peripheral interfaces for makers to integrate with sensors and other devices.

RISC-V.png

Software Releases

Quick Links to the Source of OS Images Build

There is a community effort to bring updated kernels, peripherals and buildroot - Lots of communication happening in the #ox64-nutcracker channel.

  • buildroot bringing all the work below together with a bootable kernel and updated filesystem images for SD cards
  • U-Boot and OpenSBI work by Smauel
  • Kernel IRQChip, SDCard, and (WIP) USB by arm000, pokey and others
  • OpenBouffalo Firmware low_load drivers by Fishwaldo and others

Original Linux Images provided by Bouffalo - Very basic alpha build which are only fit for board bring up and testing purposes.

Software Development Kits

SoC and Memory Specification

Bouffalo Lab icon.png

BL808 Block Diagram.jpg

CPU Architecture

T-Head.png
    • Supports RISC-V RV64IMAFCV instruction architecture
    • Five-stage single-issue sequentially executed pipeline
    • Level-1 instruction and data cache of Harvard architecture, with a size of 32 KB and a cache line of 64B
    • Sv39 memory management unit, realizing the conversion of virtual and real addresses and memory management
    • jTLB that supports 128 entries
    • Supports AXI 4.0 128-bit master interface
    • Supports core local interrupt (CLINT) and platform-level interrupt controller (PLIC)
    • With 80 external interrupt sources, 3 bits for configuring interrupt priority
    • Supports BHT (8K) and BTB
    • Compatible with RISC-V PMP, 8 configurable areas
    • Supports hardware performance monitor (HPM) units
  • T_head E907 320MHz 32-bit RISC-V CPU
    • Supports RISC-V RV32IMAFCP instruction set
    • Supports RISC-V 32-bit/16-bit mixed instruction set
    • Supports RISC-V machine mode and user mode
    • Thirty-two 32-bit integer general purpose registers (GPR) and thirty-two 32-bit/64-bit floating-point GPRs
    • Integer (5-stage)/floating-point (7-stage), single-issue, sequentially executed pipeline
    • Supports AXI 4.0 main device interface and AHB 5.0 peripheral interface
    • 32K instruction cache, two-way set associative structure
    • 16K data cache, two-way set associative structure

System Memory

  • Embedded 64MB PSRAM

Board Features

Network

  • 2.4GHz 1T1R WiFi 802.11 b/g/n
  • Bluetooth 5.2
  • Zigbee
  • 10/100Mbps Ethernet (optional, on expansion board)

Storage

  • on-board 16Mb (2MB) or 128Mb (16MB) XSPI NOR flash memory
  • microSD - supports SDHC and SDXC

Expansion Ports

  • USB 2.0 OTG port
  • 26 GPIO Pins, including SPI, I2C and UART functionality. Possible I2S and GMII expansion
  • Dual lane MiPi CSI port, located at USB-C port, for camera module

Audio

  • mic (optional, on camera module)
  • speaker (optional, on camera module)

Board Information, Schematics and Certifications

  • Baseboard Dimensions: 51mm x 21mm x 19mm x 3.5mm (Breadboard friendly)
  • Input Power: 5V 0.5A microUSB or USB-C port
  • Schematic:

Production version schematic:

    • Pinout:

0x64pinout.png

Prototype (dispatched to developers) schematic:

  • Certifications:
    • Disclaimer: Please note that PINE64 SBC is not a "final" product and in general certification is not necessary.
    • Not yet available

Datasheets for Components and Peripherals

Compatible UARTs when in bootloader mode

  • When the Ox64 is in bootloader mode, some UARTs are unable to communicate with it. When this is the case, utilities such as BLDevCube are unable to actually program the device.
  • If you see "Shake hand fail" and an empty ack, and your device is in bootloader mode, then it is likely an incompatible UART.
  • The below devices have been tested and verified as working
    • Raspberry Pi Pico - running the following uart firmware
      • GP4 and GP5 are used for port 0, GP12 and GP13 for port 1
    • ESP32 with CP210x - bridge the EN pin to ground to disable the ESP32 itself, and then connect the TX on the esp32 to 14 on the Ox64 and RX to pin 15. Note that only baud rate 115200 works, and this doesn't seem to work for everyone)
    • Stand-alone CP2102 dongle works at 115200 baud. Brand used was HiLetgo.
    • STM32F401 BlackPill - running the Black Magic Debug firmware
    • Some UART adapters based on the FT232H (note that the FT232RL does not work, and neither does the Pine 64 JTAG)
    • Some CH340G based adapters work and some don't.

Resources

Git repositories:

Development Efforts