The 8]axe is a 8-ASIC-BM1366 Miner based on the 0xaxe
rev1: averaging at about 3.3-3,6TH/s with ~90 Watts on the wall on default settings (485Mhz)
rev2: added boost converter to eliminate the extra 12V PSU / different design to fit vertain enclosures
note: The 8]axe is not a stand-alone device because it only supports USB. It can be run connected to a Raspberry Pi without problems. Also multiple devices can be connected to a single Pi.
WARNING: The 8]Axe working with Voltage Domains is the end level boss for Pros. It's hard to get it working properly. The main reason is the powering scheme that uses 4 different voltage domain. It's difficult to get it into balance properly and needs very good and uniform cooling. The device works but can be super frustrating until it really is mining as it should. Therefore there is some WIP to eliminate the voltage-domains and chaining 8 Asics in one Domain instead. There will be no further development in near future on this project by myself, due to another project without voltage-domains
ASICs
=====
The 8]axe uses 8 ASICs of type BM1366
Compilation (Bootloader or CMSIS-DAP)
======================================
Start WSL on your PC and go through the followig steps:
```bash
# install curl
sudo apt install curl
# install rust
curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh
# add to ~/.bash.rc (afterwards, opening a new terminal is needed)
echo 'source "$HOME/.cargo/env"' >> ~/.bashrc
# clone repository
git clone https://github.com/shufps/0xaxe
# clone submodules
cd 0xaxe
git submodule init
git submodule update
# add rust target for STM32L0 variants
rustup target add thumbv6m-none-eabi
# build firmware for L072
cd firmware/fw-L072KZ
./build.sh
For windows the usbipd is needed to connect the device to WSL. Install it from here:
https://github.com/dorssel/usbipd-win/releases
Afterwards reboot your PC and open the cmd as Administrator.
Connect the USB to your PC and power on the 12V while pressing the BOOT Button to start the device in BOOT-Mode
Then:
C:\Windows\System32>usbipd list
Connected:
BUSID VID:PID DEVICE STATE
2-1 046d:c52b Logitech USB Input Device, USB-Eingabegerät Not shared
3-1 0c76:161f USB PnP Audio Device, USB-Eingabegerät Not shared
3-2 046d:c52b Logitech USB Input Device, USB-Eingabegerät Not shared
3-3 046d:c548 Logitech USB Input Device, USB-Eingabegerät Not shared
4-1 8087:0aa7 Intel(R) Wireless Bluetooth(R) Not shared
4-2 2e8a:000c Picoprobe CMSIS-DAP v2, Serielles USB-Gerät (COM3) Attached
Note the BUSID for the STM32. Then
C:\Windows\System32> usbipd bind --busid 4-2
Afterwards start your WSL Linux
Then attach the device with:
C:\Windows\System32> usbipd attach --wsl --busid 4-2
When it is running you can check in your WSL-Linux if the probe is detected:
probe-rs list
The following debug probes were found:
[0]: Picoprobe CMSIS-DAP (VID: 2e8a, PID: 000c, Serial: E66138528337A532, CmsisDap)
The STM32L072CB variant has an integrated DFU Bootloader that starts when pressing the BOOT button during reset.
Afterwards the firmware can be flashed via dfu-utils:
# install cargo-binutils and llvm tools
cargo install cargo-binutils
rustup component add llvm-tools-preview
# create the firmware.bin
DEFMT_LOG=info cargo objcopy --release --bin qaxe -- -O binary 0xaxe.bin
# install dfu-utils
sudo apt-get install dfu-util
# after booting, list the devices
dfu-util --list
# flash the binary
dfu-util -a 0 -s 0x08000000:leave -D 0xaxe.binUse the "config.yml.example" of the Piaxe-Miner and change it as follows:
debug_bm1366: false
verify_solo: false
miner: 0xaxe
# works only with public pool
#suggest_difficulty: 2048
0xaxe:
name: 8]axe
chips: 8
fan_speed_1: 0.8
asic_frequency: 480
extranonce2_interval: 1.5
serial_port_asic: "/dev/ttyACM0"
serial_port_ctrl: "/dev/ttyACM1"
...
Stratum Mining Client:
https://github.com/shufps/piaxe-miner
I used a 80x160x170 aluminum case like this one: Amazon
Added 2x80mm Noctua Fans to get it pretty silent
If you like this project and want to support future work, feel free to donate to: (https://github.com/shufps/0xaxe)
