Avalon2
Avalon2 is the second machine of Avalon project. using the 55nm ASIC chips
Pictures
PCB
Single modular
Avalon2 parts
Avalon2
User manual
TP LINK WR703N
The USB on the AR9331 have bugs. if you want use serial console, please the direct serial console on 703N (the /dev/ttyATH0). it's far more stable then USB-serial convertor. you may want add a usb-hub between machine and 703n
Raspberry Pi
- The default firmware IP address is 192.168.0.100, you can access it by http://192.168.0.100
- You may need update the address/DNS to your local configuration. DO NOT FORGET your IP address.
- If Rpi can access internet the cgminer should automatic start
- 8GB Memory card: http://item.jd.com/632744.html
- Reflash: sudo dd if=openwrt-brcm2708-sdcard-vfat-ext4.img of=/dev/sdb bs=4M #/dev/sdb is your memory card
- USB Hub, UNITEK Y-2132 USB2.0 13ports
- USB WiFi, EDUP EP-N8508GS
Manual by others
The Avalon2
Power supply
Specification
315GH/s, 1020W@220V in normal mode. 210GH/s, 420W@220V in ECO mode.
Avalon2 Single Modular
Module hash speed: ~105GHS Chip operating speed: 1.5GHS Chip working voltage: 1.0V Typical values DH: ~2% Module Power: 24.5A@12V, 294W (excluding fan power consumption). 0.1A @ 5V, 0.5A @ 3.3V. Power Module conversion efficiency: >= 87% Design Operating temperature: 85C (chip temperature), 60C (PCB, temperature sensor measurements) Fan: 4PIN PWM speed control, report fan speed back. Include: Single modular, USB Connector
LEDS
from bottom(FPGA) to top is 1 to 8 1, 2, 3, 4, 5: Blink when found nonce 6, 7, Data transfer 8: Error or under testing
Design Files
- A3255 ASIC Datasheet: http://downloads.canaan-creative.com/hardware/A3255/datasheet/
- The Hardware design files: http://downloads.canaan-creative.com/hardware/A3255/avalon2
Firmware
Source code
- MM(Miner Manager)]
- The cgminer Avalon2 support
- OpenWrt LUCI page
- OpenWrt cgminer package, files and config
- Build script file
NEXT
20140320
- Here: http://downloads.canaan-creative.com/software/avalon2/2014-03-20/
- MM(201401-1f7d08b0): read the power good single back.
- Poweron five small module one by one. good for PSU.
- Update cgminer to 4.0.0
- Add devs information on status page.
20140123
- Here: http://downloads.canaan-creative.com/software/avalon2/2014-01-23/
- MM(201401-a3cb3950): Include the first stable version of MM firmware
- Include the RPi OpenWrt firmware
- Include the 703N OpenWrt firmware
- Support fixed fan speed, support A3255 frequency from 1G to 2G, support adjust voltage for 0.65v to 1.1v
- Display all modules status include 2 fan, 2 temperature sensors, voltage and frequency
- Voltage display as encode mode. needs to be changed to human readable
- Include an ASIC cores testing python script
Test plan
- Test 10 avalon2 single module with one host (703N or RPi)
Testing
- The Avalon2 MM firmware support testing. no needs particular firmware.
- The host test program is here: https://github.com/BitSyncom/avalon-extras/blob/master/scripts/avalon2-a3255-modular-test.py
- Run avalon2-a3255-modular-test.py for testing. you may update your serial port at -s option.
Donation
- Ngzhang0: 1kBGUHDxmSAegACRB6fcE2vrnVAfPJarW
- Con Kolivas: 15qSxP1SQcUX3o4nhkfdbgyoWEFMomJ4rZ
- Kanoi: 1KanoiBupPiZfkwqB7rfLXAzPnoTshAVmb
- Xiangfu: 19BT2rcGStUK23vwrmF6y6s3ZWpxzQQn8x
Links
- 55nm open design contest: http://avalon-asics.com/avalon-gen2-55nm-open-source-design-contest/
- Documents release by Avalon: http://downloads.canaan-creative.com/hardware/A3255/
- Avalon2 prototype by using Avalon1 hardware design