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Post by harbinger on Aug 22, 2008 13:38:56 GMT -5
I've read threads on both the 1541-III and uIEC/SD2MMC and am a bit confused. I think I'd read that the 1541-III has some 'bug' or issue where it doesn't peform as well as the other board, but theother board has its own issues....I'm just wondering which would be my best bet as far as reliability/expandability/and do forth.
I don't check the boards regularly, and it seems that I always just miss out when a new batch of either are produced. If someone could let me know when a new batch of either project will be produced I'd appreciate it.
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Post by shadowolf on Aug 23, 2008 4:39:28 GMT -5
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Post by ulysses31 on Aug 23, 2008 5:13:43 GMT -5
whatis the board size in mm for the SD2IEC?
as I would like to make a couple for my DTV.
cheers
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Post by shadowolf on Aug 23, 2008 5:57:27 GMT -5
It's 55,72x30,08 mm.
The WIKI page has schematic and board files for use with EAGLE V4.
One problem though, the SD-socket is obsolete and while I know a German dealer who still has some it may be rather difficult to get one.
Oh, and there are parts on both sides of the board.
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Post by ulysses31 on Aug 23, 2008 6:42:35 GMT -5
It's 55,72x30,08 mm. The WIKI page has schematic and board files for use with EAGLE V4. One problem though, the SD-socket is obsolete and while I know a German dealer who still has some it may be rather difficult to get one. Oh, and there are parts on both sides of the board. are the sd sockets the nine pin connector type? if so then they are relatively easy to buy here in the UK (cost approx GBP£0.78.) thanks for the board size and sorry to Harbinger for hijacking this thread  |
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Post by shadowolf on Aug 23, 2008 8:07:42 GMT -5
>are the sd sockets the nine pin connector type?
Well, sort of.
But each manufacturer does its own footprint and what makes it worse they use several footprints even in one series of connectors.
We haven't found a socket yet that could be used as direct replacement.
And I haven't looked that hard yet to find a different socket to modify the board for.
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Post by 1570 on Aug 23, 2008 13:31:02 GMT -5
I think I'd read that the 1541-III has some 'bug' or issue where it doesn't peform as well as the other board, but theother board has its own issues.... - The last 1541-III firmware release has been February 2008 (the only release in 2008). The last sd2iec firmware release has been July 2008 (with a release almost every month so far).
- The 1541-III firmware can be updated using a special cable. The sd2iec firmware is updated by exchanging a file on the SD card.
- 1541-III does not support any fastloaders. sd2iec does support some fastloaders (Jiffy, Final Cartridge III, etc.).
- The sd2iec firmware is used in at least two different devices and is developed by two people continuously with other people occasionally helping. Don't know about 1541-III in this regard.
You decide  . |
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Post by harbinger on Aug 24, 2008 9:36:55 GMT -5
Thanks to all for the great info. It looks like I'll try to latch onto a SD2IEC, despite the problem finding a "correct" SD-socket. I'm in the States, so I don't know what kind of luck I'll have.
Who sells the SD2IEC kits/assembled units?
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Post by robertb on Aug 24, 2008 16:10:51 GMT -5
Who sells the SD2IEC kits/assembled units? Tony Kim seems to have made another run of the MMC2IEC boards his company manufactures. I don't know if he has taken my advice to put in a bigger ATMEL chip so that the latest SD2IEC software can be installed (the previous board had a smaller chip and thus used a smaller-sized, older version of SD2IEC). If you should order the board, emphasize that you want the SD2IEC software on it -- not the MMC2IEC software. Go to www.nkcelectronics.com/commodore.htmlTruly, Robert Bernardo Fresno Commodore User Group videocam.net.au/fcugThe Other Group of Amigoids www.calweb.com/~rabel1/ |
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Post by shadowolf on Aug 24, 2008 17:15:42 GMT -5
robertbI wonder if Tony Kim reworked the board. Unfortunately I lost contact with him after I sent him my very first steps of a reworked design. And after that I did the SD2IEC anyways which kind of renders MMC2IEC obsolete. Just putting the M644 on the board instead does not really cut it.
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Post by shadowolf on Aug 24, 2008 17:21:48 GMT -5
harbinger>Who sells the SD2IEC kits/assembled units? Sort of, I do - or did. But not in the commercial sense of "selling". I organised a collective order and sent out kits with pre-assembled and bootloader-installed M644's but only asked for what the parts and shipment cost. This was limited to a german forum though and there are no plans whatsoever to extend that to worldwide or make it a standing offer.
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Post by robertb on Aug 24, 2008 17:51:00 GMT -5
I wonder if Tony Kim reworked the board. Unfortunately I lost contact with him after I sent him my very first steps of a reworked design. I will send him an e-mail right now and find out. If he responds, I'll post the info here. Truly, Robert Bernardo Fresno Commodore User Group videocam.net.au/fcugThe Other Group of Amigoids www.calweb.com/~rabel1/ |
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Post by ulysses31 on Aug 25, 2008 9:29:30 GMT -5
Just putting the M644 on the board instead does not really cut it. these do work ok  as I just ordered some parts to build a couple of SD2IEC boards |
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Post by shadowolf on Aug 25, 2008 12:01:25 GMT -5
ulysses31 >these do work ok >as I just ordered some parts to build a couple of SD2IEC boards Of course they do. My comment was adressed to the NKC boards I know so far. For example you would be missing the disk-change button.
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Post by racob on Aug 25, 2008 13:09:52 GMT -5
Shadowolf wrote:
Will there be any remote chance for other members outside of Germany that maybe able to acquire or purchase your version.
I saw the schematics you posted. Although we could probably build it as a point-to-point wiring project (for non-experienced PCB builders), has anyone In North America expressed interests in getting your version done here. Maybe we can get Tony Kim to get into some arrangements with you (IF all parties are interested, of course) to market that here. I am sure I will be willing to buy...even if PCB only for a start..
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