Avalon2

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Avalon2 is the second machine of Avalon project. using the 55nm ASIC chips

Pictures

A3255

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 than USB-serial convertor. you may want add a usb-hub between machine and 703n

Raspberry Pi

The 13 ports USB HUB
  • 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

Manual by others

Overclock

  • Chip Freq: 1700, Voltage: 10750 --> 119GHs
Extra cooling is recommended, GJPMiningco recommend remove the slide 
panel that covers the heatsink and add some fans that blow down into
the heatsink at least 3 fans evenly spaced along the heatsink

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


Source code

Debug port

Firmware

20140423

  • Update cgminer from 4.0.0 to 4.3.0 (You may want read document on --config options)
  • Update OpenWrt to r40351 (Linux version 3.10.34)
  • Fix a bug that may cause hashrate lose.
  • Support 703N, 1043ND-V2 and RaspBerry Pi
  • Detect Avalon power good signal in cgminer
  • Display GHS(not MHS) on cgminer status page
  • Add some text for support both Avalon2 and Avalon3
  • Support frequency setting for Avalon2 and Avalon3 chips on cgminer configuration page
  • Support voltage setting for Avalon2 and Avalon3 chips on cgminer configuration page

20140411

20140320

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

NEXT

  • NOTICE: Only for testing

Test plan

  • Test 10 avalon2 single module with one host (703N or RPi)


Testing

Donation

Links

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