GBA1000 68060 Turbocard build project
- Thread starter hese
- Start date
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Ok. I looked in the file and found this. But adding the multiplier in the compiled jedecs is too hard for me (I don't know where to start looking at the code in control_top.abl)
// Einstellung PLL M = high (3,3V out) 1 = 3-State (5V pullup) 0 = low
// S1 S0 Multi S1 OE S0 OE
// 0 0 x2 0 1 0 1
// 0 1 x5 0 1 1 0
// M 0 x3 1 1 0 1
// M 1 x3,33 1 1 1 0
// 1 0 x4 1 0 0 1
// 1 1 x2,5 1 0 1 0
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cadillac46
New member
Hi. Is it possible to re-design thid board to run in an Amiga 3/4000?
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BloodyCactus
Member
the schematics exist in Eagle, you would need to re do the layout of the board, traces, chip position and then get it fabricated. Its not open source tho, so you should ask permission of Georg Braun if you wanted to go make changes to his design.
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cadillac46
New member
No, I won't do it by myself. Maybe I'll ask Georg.
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Congratulations hese, how is your 060 turbocard after some days of testing? Have you found any issues?
Could it be possible to post the components-list for turbo card published on A1k here? I have registered myself there, but it is still impossible to download any of these docs. According to THE RULES I need first to send some posts... I do not want to produce posts only to gain the full access (it is little bit crazy). I think the docs are not confidential.
Could it be possible to post the components-list for turbo card published on A1k here? I have registered myself there, but it is still impossible to download any of these docs. According to THE RULES I need first to send some posts... I do not want to produce posts only to gain the full access (it is little bit crazy). I think the docs are not confidential.
Below, the components list generated directly from the Eagle files.
View attachment GBA1K_TK_02.partlist.TXT
Today, I wanted to order components for the GBA1000 expansions, but I have some problems.
I don't find any valid reference for L8 of the 060 board.
It's also the same for L1 & L2 of the Mini-Thylacine.
@hese: which reference did you order for these components?
I don't find any valid reference for L8 of the 060 board.
It's also the same for L1 & L2 of the Mini-Thylacine.
@hese: which reference did you order for these components?
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Can you elaborate a bit? Why is it not the best choice, what would I gain by getting a revision 6, and what will I be doing differently to anyone else? I'm aware it will run a little hotter than an MC incidentally, but it's not packed in to an A1200 case so I can always add a heatsink or fan.
What I'm a bit confused over is how the 50Mz variant of a 68060 can be expected to run at 100Mhz - that's a rather large overclock!
Sadly, I'm currently well over £500 into this GB-A1000 build (I stopped keeping track at £500 as it was too depressing) so I have to draw the line somewhere and can't just keep ploughing money in forever.
What I'm a bit confused over is how the 50Mz variant of a 68060 can be expected to run at 100Mhz - that's a rather large overclock!
Sadly, I'm currently well over £500 into this GB-A1000 build (I stopped keeping track at £500 as it was too depressing) so I have to draw the line somewhere and can't just keep ploughing money in forever.
I'm not sure there is a true MC68060 that has a stamped rating above 50Mhz. I think the only parts faster are the 68EC060. So no matter what, you are always over clocking the part for this turbo board. The ones vesalia sells may all be of the same batch/revision, or may be random. Steer clear of Chinese sellers as they have been caught scrubbing and relabeling chips. Also steer clear of parts labeled XC68060, as these are the earliest ones and probably can't take the over clock to 100Mhz.
Anothe consideration - the bulk buy here on amibay appears to have resulted in memory chips that can't run at 100Mhz. These has been working on my card using a known good rev6 CPU but the card won't boot above 80Mhz.
Anothe consideration - the bulk buy here on amibay appears to have resulted in memory chips that can't run at 100Mhz. These has been working on my card using a known good rev6 CPU but the card won't boot above 80Mhz.
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Martin you paid too much for it. You should have bought this one...
http://www.ebay.com/itm/Motorola-Mo...042?pt=LH_DefaultDomain_0&hash=item3f287ecbfa
Oh. Me board still won't boot (Sob), so it can't be the LSI chip. Oh well on the shelf it goes (Maybe I should sell it as a none-working board eh????) But I put $$$$$ into it...
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Martin you paid too much for it. You should have bought this one...
http://www.ebay.com/itm/Motorola-Mo...042?pt=LH_DefaultDomain_0&hash=item3f287ecbfa
Oh. Me board still won't boot (Sob), so it can't be the LSI chip. Oh well on the shelf it goes (Maybe I should sell it as a none-working board eh????) But I put $$$$$ into it...
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The one in your link is an EC. No FPU.
I didn't find an exact match for the L8 (50Ohm 0.2A) from Mouser, so I ordered part number 623-2512066007Y0A4 (60Ohm 0.2A) instead.
Seems to be working fine.
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Just for a reference, I tested the turbocard also with a LC chip (no FPU) but the computer wouldn't boot.
So a full CPU seems to be required.
Are you absolutely sure it's the memory? What kind did you all get in the end? As far as I can tell from the datasheet, even the slowest K4S561632 should be rated for 100MHz (at CAS latency 3)..
The 68060 in my hand is an 'XC68060RC50'.
I'm not really sure what to do now. My primary reason for purchasing the accelerator card is to support the Picasso graphics and equally for the additional fast RAM. I'm not interested in squeezing every last possible Mhz out of the board. I prefer a good stable and usable system that I am actually intending to use for some development over the fastest thing money can buy
There have been a number of group buys for parts but apart from this CPU, all of my parts so far (including the memory) have come from the first group buy that Tuxbar did. So I'm guessing that means I also have the memory chips that are being discussed above as well.
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Oh, PS: I paid too much for almost all of the parts I have bought to date that didn't come from a bulk buy. I'm not very good at hunting down the cheapest, but such is life. However, cheapest does not always = best option.
The original fast ram on the GB-A itself I bought 16 chips from China. A very cheap price. Then had a real bad time soldering them on, eventually having to admit defeat when I was getting memory errors. I sent it to Ordyne to look at as he has the kit to remove the RAM and is much more experience with SMT than I. After starting again he couldn't get it on there either. It turned out the RAM had arrived with crushed legs so there was nothing wrong with my soldering after all.
End result, this last week I had to purchase new RAM from a known good supplier in the UK (Farnell) that would deliver next day, and any issues it could be returned. It cost £90 total (approx £5 per chip). Very expensive, but within 24 hours the new RAM was fitted and the board working. Goes to show, you get what you pay for in this world
The GB-A1000 was demonstrated at the Amibay get together in Cheltenham yesterday and seemed to be very well received. Albeit I had to put my finger on the LSI CPLD to get it to boot so I clearly have a bad PLCC socket there and will be replacing that today if I get the time.
Sorry for going OT a little here! These boards can be very frustrating to get running, but then it does say that it requires a lot of skill and knowledge on George's site.
I'm not really sure what to do now. My primary reason for purchasing the accelerator card is to support the Picasso graphics and equally for the additional fast RAM. I'm not interested in squeezing every last possible Mhz out of the board. I prefer a good stable and usable system that I am actually intending to use for some development over the fastest thing money can buy
There have been a number of group buys for parts but apart from this CPU, all of my parts so far (including the memory) have come from the first group buy that Tuxbar did. So I'm guessing that means I also have the memory chips that are being discussed above as well.
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Oh, PS: I paid too much for almost all of the parts I have bought to date that didn't come from a bulk buy. I'm not very good at hunting down the cheapest, but such is life. However, cheapest does not always = best option.
The original fast ram on the GB-A itself I bought 16 chips from China. A very cheap price. Then had a real bad time soldering them on, eventually having to admit defeat when I was getting memory errors. I sent it to Ordyne to look at as he has the kit to remove the RAM and is much more experience with SMT than I. After starting again he couldn't get it on there either. It turned out the RAM had arrived with crushed legs so there was nothing wrong with my soldering after all.
End result, this last week I had to purchase new RAM from a known good supplier in the UK (Farnell) that would deliver next day, and any issues it could be returned. It cost £90 total (approx £5 per chip). Very expensive, but within 24 hours the new RAM was fitted and the board working. Goes to show, you get what you pay for in this world
The GB-A1000 was demonstrated at the Amibay get together in Cheltenham yesterday and seemed to be very well received. Albeit I had to put my finger on the LSI CPLD to get it to boot so I clearly have a bad PLCC socket there and will be replacing that today if I get the time.
Sorry for going OT a little here! These boards can be very frustrating to get running, but then it does say that it requires a lot of skill and knowledge on George's site.
MartinW, your 68060 should be just great for 50MHz, probably works at 66MHz too, but I would leave it at 50 since it probably gets pretty hot already at that speed.
I missed all group-buys (maybe there will be one for the second batch of 060 boards but I was too hasty and have most of the parts already). I've spent hours and hours looking at datasheets and browsing eBay and electronic stores, and still managed to make a couple of costly mistakes. But I'm pretty confident I've done as thorough job as I possibly could. I *really* hope my GBA fastram turns out OK. Turbo card rams were only 11e so if those are wrong after all, that's not a huge deal...
Now I'm almost certain mine won't work either when I finally get all the parts in it. Luckily I don't live terribly far from lemming0s and hese ....
I missed all group-buys (maybe there will be one for the second batch of 060 boards but I was too hasty and have most of the parts already). I've spent hours and hours looking at datasheets and browsing eBay and electronic stores, and still managed to make a couple of costly mistakes. But I'm pretty confident I've done as thorough job as I possibly could. I *really* hope my GBA fastram turns out OK. Turbo card rams were only 11e so if those are wrong after all, that's not a huge deal...
Now I'm almost certain mine won't work either when I finally get all the parts in it. Luckily I don't live terribly far from lemming0s and hese ....
