kludge’s TF534 build

TF534 - 68030 + More RAM Board (More compatible with amiga hardware)

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dalek
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Re: kludge’s TF534 build

Post by dalek »

I'd check your solder joints on the IDE header pins - I've had cases where the solder mask was a bit iffy and you get a short to ground with some of the through holes. I'm guessing you've already checked over the cplds a hundred times? Why not post a close-up pic of both sides of the board - maybe someone can spot something...
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kludge
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Re: kludge’s TF534 build

Post by kludge »

So, I've reflowed the RAM CPLD, and now it's somewhat working. KS 3.1.4 detects the CF card and boots from it happily (albeit with quite a long delay on power up, ~48 seconds from power up until I get to the kickstart menu when holding down both mouse buttons). The weird thing is that neither KS 2.05, 3.1 nor DiagROM detects the CF card. I might have a bad solder joint somewhere else, but this is really weird. Crazy fast, though :D
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A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
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kludge
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Re: kludge’s TF534 build

Post by kludge »

dalek wrote: Tue May 28, 2019 1:06 am I'd check your solder joints on the IDE header pins - I've had cases where the solder mask was a bit iffy and you get a short to ground with some of the through holes. I'm guessing you've already checked over the cplds a hundred times? Why not post a close-up pic of both sides of the board - maybe someone can spot something...
Yeah, I might post some close ups if reflowing the BUS CPLD doesn't work, but I've looked REALLY close and can't see any bridges anywhere, so the only thing I can think of is that there's some pin somewhere that hasn't got a good enough connection.
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
terriblefire
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Re: kludge’s TF534 build

Post by terriblefire »

Sounds like the resistors maybe a bit squirly. 2K or 1K?
———
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indicates how much hurting you shall receive."
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kludge
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Re: kludge’s TF534 build

Post by kludge »

terriblefire wrote: Tue Jun 11, 2019 8:49 pm Sounds like the resistors maybe a bit squirly. 2K or 1K?
The resistors and resistor networks are 1K :oops:

But it seems to work fine with 1K resistors according to... Was it 8 Bit Dreams that used them?
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
terriblefire
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Re: kludge’s TF534 build

Post by terriblefire »

kludge wrote: Tue Jun 11, 2019 8:51 pm
terriblefire wrote: Tue Jun 11, 2019 8:49 pm Sounds like the resistors maybe a bit squirly. 2K or 1K?
The resistors and resistor networks are 1K :oops:

But it seems to work fine with 1K resistors according to... Was it 8 Bit Dreams that used them?
i use 2K2s
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
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kludge
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Re: kludge’s TF534 build

Post by kludge »

terriblefire wrote: Tue Jun 11, 2019 8:53 pm i use 2K2s
Yeah, I know. And I know the BOM says 2K2, but I already had a stash of 1K's and the import fees would be freakishly high for just a resistor order. And I'm sure one of the builders said that they were using them.

Oh well... Might try to swap them out.

Are the values of the resistors and resistor networks equally important? I can find SMD resistors easily here in Sweden (I might even have some in a box somewhere), but the 2K2 RN's are much harder to find with reasonable shipping and import fees.
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
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chue
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Re: kludge’s TF534 build

Post by chue »

I used 1K resistor networks in my build. As for the other resistors, I used 2.2K and 47K, per the BOM.
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kludge
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Re: kludge’s TF534 build

Post by kludge »

chue wrote: Tue Jun 11, 2019 11:48 pm I used 1K resistor networks in my build. As for the other resistors, I used 2.2K and 47K, per the BOM.
I might try to swap out the 1K 0603’s for 2K2’s and see if it makes a difference.
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
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kludge
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Re: kludge’s TF534 build

Post by kludge »

kludge wrote: Tue Jun 11, 2019 8:59 pm
terriblefire wrote: Tue Jun 11, 2019 8:53 pm i use 2K2s
Are the values of the resistors and resistor networks equally important? I can find SMD resistors easily here in Sweden (I might even have some in a box somewhere), but the 2K2 RN's are much harder to find with reasonable shipping and import fees.
Answering my own own question after opening up the schematics: The RN's are probably fine as they are. :)
A kludge is a workaround or quick-and-dirty solution that is clumsy, inelegant, inefficient, difficult to extend and hard to maintain.

My lack of focus:
[ 4 * Amiga 500 ][ Amiga 500+ ][ 2 * Amiga 600 ][ A1200 ][ Amiga 2000 w/ A2386 ][ Amiga 4000/030 w/ CyberVision 64 3D, FastLane SCSI Z3 ][ CD32 ][ VIC-20 ][ 4 * C64 Breadbin ][ 5 * C64C ][ 2 * C128 ][ C128D ][ C64 DTV ][ Mac Classic ][ Mac Classic II ][ Mac Colour Classic ]
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