Topic: Open Source Avalon Gen2 55nm Board - page 4. (Read 35930 times)

Edit driver-klondike.c and set MAX_WORK_COUNT to 8, then compile again.

What must I do to make this board mining under cgminer? Please help me

if the Max Count is 8 ~  >>>>  #define TICK_TOTAL   20800

I have 3.3 V and the Pickit is connected correctly.
I can also download the existing firmware from the board.
Could it be that there must be a special setting in MPLABX IDE for prject properties ? Under prject properties - licensed debugger - auto select memories and ranges: I can choose "allow licensed debugger to select memories" or must ist be "manually select memories and ranges"?

Yes I use it. But the errormessage says the it could not write to the board. It seems to be a settings problem. The programmer tries to write from 0x0 and the expected range seems to begin at 0x3027.

Ok, what I did:
- bought Pickit3, downloaded MPLAB X, installed it
- download latest firmware once from
     github.com/formtapez/avalon and from
     github.com/zipiju/k16-firmware
-connected Pickit3 to computer, drivers have been installed
- started Pickit3
- choosen as device: PIC16LF1459
- pressed connect
- warning window pops up to check wether the choose device is correct or not. => checked it chip on board
   is PIC16LF1459 => pressed ok
- warning window pops up: Target Device ID (0x0) does not match the expected Device ID (0x3027). Would
  you like to continue? => press ok => CONNECTION WILL BE ESTABLISHED
- choose downloaded .hex-file => press Program
- error message comes up: failed to program device

What am I doing wrong? For me it seems that I have the .hex-files? Is this correct?

Does hongkongapple1 gave is latest firmware to anyone of you? I asked him twice for the .hex-file for 25GHs and he gave me no response nor the files.

Can anybody help me a little bit?
 

Hi everybody,

now I have my first Klondike-boards in hands and it seems that they need the last firmware to become flashed. Can anybody give me a description howto do this?

I also want to mine with the boards using minepeon. Must I patch the cgminer used by minepeon? If yes, how to do this?

A little help would be wonderfull.

Best regards

Joerg

By datasheet, the chips claim 2.05W/Gh. We could run the chips at 1.5-1.6GH/s on the 10-chip board, so on the 16-chip board the typical power consumption will be 2.05*1.6*16=52.48W. Assuming 1V core supply voltage, this results in 52.48A consumption from the DVDD source.

But the measured power consumption is a bit higher. The 10-chip board draws 3.5A from the 12V source which is 42W. Assume 3W goes into 3.3V supply to power the PIC and the rest of the circuit, while 39W goes into the voltage converter. Assuming 85% efficiency (per datasheet at this output voltage), the output power is 33.15W which corresponds to 33A current draw for 10 chips. If we run 16 chips in this mode, the current would proportionally rise to 53.04A.

Ok, at least it sort of works. I already ordered the PCBs so I'll probably just run the modules overloaded or reduce the hash rate. But it's a bad engineering practice. Do you think TI's engineers were not tempted to quote higher values in their datasheet if the device was really capable of providing more output current? These days everything is around marketing, and part manufacturers sometimes quote very optimistic values that are only achievable in very controlled circumstances, while in real applications the part can't be realistically expected to deliver that performance. So there must be reasons why their nominal output current is limited to 50A, not more.

Overcurrent protection is just a safeguard against unexpected, exceptional overloads but not a guideline to constantly run your device at currents between 50 and 95A. If you constantly violate datasheet requirements in your designs, you're simply asking for trouble. Say, if this module fails catastrophically, not only it will cost you some $40-$50 to replace it, but it could also fry 16 of your Avalon chips. In the end you may lose a whole board with all parts.

I would consider reducing the number of chips on the board to 12-14 or making a custom VDD voltage regulator in place of the PTH12040 module. The latter approach could also save costs considerably. I have some experience with switching mode power converters, but not at these high currents.

Dear Lucko,  I have now still now 5 boards for u,  & 11 boards for my Finland Clients~  who he have actually have wait for the longest time ~  there is a lots of credit for your guys ~  who paitent enought to wait ~  While problem arise on the board,  some board can't pass the test, which cos more delay ~

All should be finialized ~  should be able to send them all all tomorrow.. ~

Lets u guys had a great news ~  

Now the board can run very stable @ 1.59 Ghz / Chips ~

Means u can now get ~ a promised ( 25.5 Ghz very Stable !)

~  So some who do true this dude !  Will Paid off now ~

Pls do not ask me how,  this is lots of hardwork & co-operation ~  ( including working under a 5 days Extreme Fever & Flu, super head killing condition ~  luckily all are passed !  only my voice are not back yet,  I have almost lost my voice )

Only avaliable to Lucko & great supporter ~

I will preload the firmware for u ~    

Pls do not ask me how,  this is lots of hardwork & co-operation

hongkongapple1 still sick? Can you please send my boards on the way...