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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Hi,Yes I've been working on a separate project, and yes it does work (100Mhash/s…
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n/a | li_gangyi | August 18, 2011, 02:30:15 PM |
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Custom FPGA Board for Sale! Computer hardware
It does make things easier with a UART port, maybe with a USB to TTL converter i…
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n/a | li_gangyi | August 18, 2011, 01:26:45 PM |
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Custom FPGA Board for Sale! Computer hardware
I have to admit I'm kind of jealous of you guys. But isn't the Board overengine…
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n/a | li_gangyi | August 18, 2011, 12:03:46 PM |
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Custom FPGA Board for Sale! Computer hardware
Go ahead, we've got no reputation at this point of time, and we need to build th…
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n/a | li_gangyi | August 18, 2011, 11:33:44 AM |
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Custom FPGA Board for Sale! Computer hardware
Jtag itself is fairly scalable, you can chain multiple devices into the loops I.…
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n/a | li_gangyi | August 18, 2011, 11:04:44 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Hi, yeah I've been busy lately. I've no problems with 0402s, but it'll probably…
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n/a | li_gangyi | August 09, 2011, 02:16:16 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Been busy with another related project recently. I've looked at the PSU section,…
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n/a | li_gangyi | August 02, 2011, 07:34:51 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
li_gangyi: do you think there will be an inrush current issue with the voltage r…
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n/a | li_gangyi | July 27, 2011, 11:32:58 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
You'd need seperate resistors to each FPGA and yes, 2 seperate oscillators is be…
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n/a | li_gangyi | July 27, 2011, 09:49:37 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
That's what I planned on doing, populate 1 board, test it out and if it works, p…
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n/a | li_gangyi | July 27, 2011, 04:02:59 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
[...] For the FPGA, I suggest the ASEM1-100.000MHZ-LC-T: it's small (3.2x2.5mm2)…
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n/a | li_gangyi | July 26, 2011, 11:44:28 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I uploaded a new version of the FPGA section and of li_gangyi's PSU schematic an…
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n/a | li_gangyi | July 26, 2011, 10:37:37 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Something like that yeah, let me copy that in.Edit: Done, it's inside my folder.…
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n/a | li_gangyi | July 24, 2011, 10:42:39 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I wanted the thru hole parts for better strength, if you're gonna be plugging th…
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n/a | li_gangyi | July 24, 2011, 04:05:31 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
It looks good, I've checked and it looks like it has the adequate number of deco…
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n/a | li_gangyi | July 24, 2011, 03:15:53 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Well, I'm talking about ceramic surface-mount caps. By bloated I guess you mean…
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n/a | li_gangyi | July 23, 2011, 03:35:13 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
You can switch from low-ESR caps to normal caps to save a bit more money. The lo…
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n/a | li_gangyi | July 23, 2011, 03:10:16 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I can fund all 5 initial boards and then some1 come up with a simple test proced…
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n/a | li_gangyi | July 23, 2011, 10:59:05 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
How soon are we proposing to get these boards out? I need to clear some storage…
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n/a | li_gangyi | July 23, 2011, 09:38:52 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Since there are two regulators for VCCINT it's better if they are separate even…
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n/a | li_gangyi | July 22, 2011, 01:57:22 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I don't know how much memory the final design will need, but at the start if we…
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n/a | li_gangyi | July 21, 2011, 02:20:45 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
No specific reason why I went in from the other side, for the termination resist…
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n/a | li_gangyi | July 21, 2011, 03:25:47 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Personally it doesn't look too bad to me, I just need to check that we are meeti…
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n/a | li_gangyi | July 20, 2011, 11:39:23 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I can add a LDO to power the MSP430 if you guys think the hibernation mode on th…
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n/a | li_gangyi | July 20, 2011, 10:57:13 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
With blind vias it'd be easier to put gnd on the 2nd layer and route the gnd pin…
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n/a | li_gangyi | July 20, 2011, 06:45:56 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Ok, I've splitted in the schematic VccINT into 1 and 2, and seperated them + put…
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n/a | li_gangyi | July 20, 2011, 06:04:38 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Please guys, use a full unbroken GND plane for the entire board ( preferrably on…
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n/a | li_gangyi | July 19, 2011, 11:48:10 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Uploaded new sch and brd files to the main folder, which combines both the FPGA…
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n/a | li_gangyi | July 19, 2011, 03:22:17 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Yeah, that's what I was afraid of, let's not do that, in fact I think we can lea…
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n/a | li_gangyi | July 19, 2011, 02:27:47 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Alright, so we're pretty much basically set in terms of IOs required. Do we stil…
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n/a | li_gangyi | July 19, 2011, 01:33:36 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
What I was saying RE: the extra pins was to take as many as you can and connect…
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n/a | li_gangyi | July 19, 2011, 11:52:52 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I've looked at some calculations, if we assume the 10A is spread out across all…
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n/a | li_gangyi | July 19, 2011, 06:52:27 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
GNU GPL is the simplest and most convenient way to go about protecting this coll…
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n/a | li_gangyi | July 19, 2011, 06:14:01 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I've looked at some calculations, if we assume the 10A is spread out across all…
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n/a | li_gangyi | July 19, 2011, 05:16:24 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Since we have dedicated layers for power, I don't think thickness is an issue at…
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n/a | li_gangyi | July 19, 2011, 01:35:20 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I've looked at the new layout, it looks alot better then the previous one we had…
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n/a | li_gangyi | July 19, 2011, 12:25:26 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
QuoteActually, could you not share those? The VCCaux supply powers the frequency…
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n/a | li_gangyi | July 18, 2011, 02:46:41 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
We can always minimise risks, populate the PSU first before the FPGA, populate o…
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n/a | li_gangyi | July 18, 2011, 11:33:30 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
li_gangyi, I looked at your PSU schematic in the Dropbox folder. I hope you don'…
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n/a | li_gangyi | July 18, 2011, 11:03:31 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Added updated layout + schematic files for the PSU and BOM to the dropbox, I thi…
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n/a | li_gangyi | July 18, 2011, 06:30:44 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Here's the PSU I've layed out. http://www.dropbox.com/gallery/19035447/1/FPGA?h=…
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n/a | li_gangyi | July 18, 2011, 02:33:56 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Is any more help needed to support this development? I am an electrical engineer…
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n/a | li_gangyi | July 17, 2011, 03:32:23 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Doing the power supply, do I just draw up the schematic so we can route later in…
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n/a | li_gangyi | July 17, 2011, 12:25:20 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
The solder pad itself can be .4mm, but the solder mask clearance around the pad…
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n/a | li_gangyi | July 17, 2011, 06:45:21 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
The prices for populating are for 1 board? That price is inclusive or exclusive…
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n/a | li_gangyi | July 17, 2011, 12:21:42 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
One question, why are we planning for 12V input when we want 2.5V maximum? Would…
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n/a | li_gangyi | July 16, 2011, 02:27:49 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Well just to explain this again maybe. The consuption of 7.7 W is calculated for…
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n/a | li_gangyi | July 16, 2011, 10:28:44 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I routed some part of the bus system so far.As im new to the eagle software its…
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n/a | li_gangyi | July 15, 2011, 11:36:07 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
QuoteThis would be great. Do i understand correctly; you would assemble the boa…
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n/a | li_gangyi | July 15, 2011, 03:11:06 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I'll be happy to produce the 1st ten boards for $0, just to get this project up…
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n/a | li_gangyi | July 15, 2011, 12:59:49 PM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
I'd like to add that if we were to populate the 1st few boards ourselves, before…
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n/a | li_gangyi | July 15, 2011, 11:42:41 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
QuoteThis would be very helpful! At least for the first prototypes. I looked thr…
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n/a | li_gangyi | July 15, 2011, 11:21:46 AM |
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Modular FPGA Miner Hardware Design Development Development & Technical Discussion
Hi guys, I have access to BGA rework/repair equipment, if a prototype batch need…
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n/a | li_gangyi | July 15, 2011, 06:25:03 AM |
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Whitelist Requests (Want out of here?) Beginners & Help
Hi,I'd love to be whitelisted. Although I'm new to bitcoin, I'm not new to elect…
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n/a | li_gangyi | July 15, 2011, 01:11:15 AM |
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Newbie restrictions Beginners & Help
I seldom post on forums if at all, usually I spend most of the time just reading…
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n/a | li_gangyi | July 14, 2011, 03:46:04 PM |
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