#196646 - 17/06/2004 06:35
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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carpal tunnel
Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
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Cool link! I knew that genetics was one of the big fields of study for fruitflies, but I had not know this. Excellent.
As for the PayPal, you are correct. I have plenty here...
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Paul Grzelak 200GB with 48MB RAM, Illuminated Buttons and Digital Outputs
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#196647 - 17/06/2004 08:02
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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carpal tunnel
Registered: 29/08/2000
Posts: 14489
Loc: Canada
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RAS1 is pin 123 of the StrongArm, not 18.
-ml
Edited by mlord (17/06/2004 08:03)
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#196648 - 17/06/2004 08:50
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: mlord]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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Ok, so I should add "connect pin 14 on the memory chip with pin 123 of the StrongArm" to the write-up.
The problem then is, how do I count the number of pins on the StrongArm? The pin numbering seems clear from the memory datasheet, but it's not that clear from the datasheet for the StrongArm. Or is there a datasheet where I can see which pin is pin #123?
Like this one? But here RAS1 is pin 133? And it doesn't show which pin is the number 133 pin either.
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32MB, serial: 10101626
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#196649 - 17/06/2004 09:01
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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carpal tunnel
Registered: 29/08/2000
Posts: 14489
Loc: Canada
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Manual and pinout (page 14-1) are available for the SA-1100 CPU at this location.
-ml
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#196650 - 18/06/2004 00:32
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: mlord]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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Fantastic! Thanks!
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32MB, serial: 10101626
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#196651 - 18/06/2004 10:31
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: pgrzelak]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Do you think there would be any added concerns with handling the player?
Just to revisit this topic... I did some calculations;
The smallest in-tolerance pin size is 0.3mm wide by 0,13mm thick. Assuming that only the end of the pin is in contact with the pin below, that gives a contact surface area of 0.039mm^2.
One square inch is 25.4^2 mm^2 or 645.16mm^2. That means we have a contact area of 0.039/645.14 = 6.045x10^-5 square inches per pin. 49 pins are connected, so that gives a total surface area of 0.00296 square inches.
The tensile strength of 63/37 solder is given as 7500 psi. That means that the force required to break the joints is 7500x0.00296 = 22.2lbs, or near exactly 100N.
ie, if you attached a mass to the top chip and turned your empeg upside down then the smallest mass needed to pull the chip off would be 10Kg.
Repeating the calculations for tip only contact with the maximum in-tolerance pin size gives an answer of 46lbs or 210N (21Kg mass).
I don't think we need to worry.
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Mk2a 60GB Blue. Serial 030102962
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#196652 - 22/06/2004 09:00
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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journeyman
Registered: 29/08/2000
Posts: 96
Loc: Hamburg, Germany
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Hi folks,
I'm trying to upgrade my player to 32MB, but now I get this at boot-time:
empeg-car bootstrap v1.02 20001106 ( [email protected])
If there is anyone present who wants to upgrade the flash, let them speak now,
or forever hold their peace...it seems not. Let fly the Penguins of Linux!
e000 v1.04
Copying kernel...
Calling linux kernel...
Uncompressing Linux.....(data abort vector)
So I tried to re-install the V2.00 kernel, but when the Upgrade Process starts, I get:
Error "Hardware revision check failed" occurred during stage 0x04.
Any ideas ?
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#196653 - 22/06/2004 09:13
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: pupvogel]
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carpal tunnel
Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
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Check for solder bridges between your pins. You may have a few lines tied together, and it is causing the original memory chips to fail.
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Paul Grzelak 200GB with 48MB RAM, Illuminated Buttons and Digital Outputs
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#196654 - 22/06/2004 09:29
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: pupvogel]
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enthusiast
Registered: 27/03/2002
Posts: 248
Loc: Swindon, UK
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That happened a few times when my players were being done. Scared the sh*t out of me. However, no harm done. Do as Paul said and check for bridges. Its funny, 1 of my players went from this error to 32mb in 30secs :-)
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Andy
MK2a 60GB Amber 040103916 32mb/Light Kit
MK2a 50GB Amber 030102560 32mb
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#196655 - 22/06/2004 09:33
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: pupvogel]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Pay particular attention to the address lines. A bridge is preventing the flash from being read.
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Mk2a 60GB Blue. Serial 030102962
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#196656 - 22/06/2004 10:32
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: pgrzelak]
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journeyman
Registered: 29/08/2000
Posts: 96
Loc: Hamburg, Germany
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Thanks guys, good to know there's still hope !
But dammit...I really think I need to get some more light here !
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#196657 - 23/06/2004 06:53
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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use an ESD-safe temperature-controlled soldering iron
What temperature do I need to set the iron to?
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32MB, serial: 10101626
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#196658 - 23/06/2004 08:49
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Try 450F and see how you get on. Whatever you do, don't go above 550F.
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Mk2a 60GB Blue. Serial 030102962
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#196659 - 25/06/2004 13:03
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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I've recently re-upgraded my empeg to 64MB to see whether it was feasible to do on Paul's players. I've decided that it's just too risky, but here are some photos of the upgrade. Note that I raised the drivetray to get more clearance.
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Mk2a 60GB Blue. Serial 030102962
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#196660 - 25/06/2004 14:12
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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carpal tunnel
Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
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Yup, those photos are proof I'd rather stick with 32MB.
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Cheers,
Andy M
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#196661 - 28/06/2004 22:36
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: andym]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Yup, those photos are proof I'd rather stick with 32MB What? Too many RAS wires for your liking? ![](/ubbthreads/images/graemlins/smirk.gif)
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Mk2a 60GB Blue. Serial 030102962
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#196662 - 29/06/2004 08:54
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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carpal tunnel
Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
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What? Too many RAS wires for your liking? Those bloody RAS wires, I just can't get the buggers to solder together. I just don't seem to be able to tin the pins and then heat the wire and pin together properly.
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Cheers,
Andy M
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#196663 - 01/07/2004 13:13
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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Worked first try! 32MB available: Quote: Checking for extra DRAM: c1000000: passed. c1100000: passed. c1200000: passed. c1300000: passed. c1400000: passed. c1500000: passed. c1600000: passed. c1700000: passed. c1800000: passed. c1900000: passed. c1a00000: passed. c1b00000: passed. c1c00000: passed. c1d00000: passed. c1e00000: passed. c1f00000: passed. c2000000: wrote ffffffff, read 00000000 NetWinder Floating Point Emulator V0.94.1 (c) 1998 Corel Computer Corp. empeg-car player (hardware revision 9, serial number 10101626) 32MB DRAM Command line: mem=16m Calibrating delay loop... 207.67 BogoMIPS Memory: 31240k/32M available (980k code, 20k reserved, 524k data, 4k init)
But now I get weird stuff after it detects my harddrive. My primary harddrive died, so there's only my secondary in there now (without jumper = master). It started the player just fine before the RAM upgrade... Will that go away once I add the new primary drive?
Quote: empeg single channel IDE Probing primary interface... hda: IC25N080ATMR04-0, ATA DISK drive hda: IC25N080ATMR04-0, ATA DISK drive hda: IC25N080ATMR04-0, ATA DISK drive hda: IC25N080ATMR04-0, ATA DISK drive hda: IC25N080ATMR04-0, ATA DISK drive hda: IC25N080ATMR04-0, ATA DISK drive ide0 at 0x000-0x007,0x038 on irq 6 hda: IC25N080ATMR04-0, 76319MB w/7884kB Cache, CHS=9729/255/63 empeg-flash driver initialized smc chip id/revision 0x3349 smc9194.c:v0.12 03/06/96 by Erik Stahlman ([email protected])
SMC9194: SMC91C94(r:9) at 0x4008000 IRQ:7 INTF:TP MEM:6144b MAC 00:02:d7:22:06:5a Partition check: hda: hda1 < hda5 hda6 > hda2 hda3 hda4 RAMDISK: ext2 filesystem found at block 0 RAMDISK: Loading 320 blocks [1 disk] into ram disk... done. VFS: Mounted root (ext2 filesystem). Timezone: /usr/share/zoneinfo Unable to handle kernel paging request at virtual address 0000df20 memmap = C0004000, pgd = c0004000 *pgd = c012f801, *pmd = c012f801, *pte = 00000000, *ppte = 00000000 Internal error: Oops: 0 CPU: 0 pc : [<c00330e0>] lr : [<c0033a34>] sp : c01f7f84 ip : c01f7f94 fp : c01f7f90 r10: c0103fc8 r9 : c0108704 r8 : 00000002 r7 : 00000004 r6 : 00000001 r5 : 00000000 r4 : c1f79aa0 r3 : 00000004 r2 : 00000000 r1 : 0000df20 r0 : c1f79aa0 Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment kernel Control: C000517D Table: C000517D DAC: 0000001D Process kupdate (pid: 3, stackpage=c01f7000) Stack: c01f7f60: c0033a34 c00330e0 60000013 c01f7f80: ffffffff c01f7fb0 c01f7f94 c0033a34 c003300c 00009a20 0000004e 00000001 c01f7fa0: 00000004 c01f7fe0 c01f7fb4 c003512c c00339cc c1f79aa0 00000001 c01f6000 c01f7fc0: c0104024 c0108794 c0100988 4401a11b c0008580 c01f7ffc c01f7fe4 c0035790 c01f7fe0: c00350a0 c0035720 c012b84c c0100760 c0003fb4 c01f8000 c000b6ec c003572c Backtrace: Function entered at [<c0033000>] from [<c0033a34>] Function entered at [<c00339c0>] from [<c003512c>] r7 = 00000004 r6 = 00000001 r5 = 0000004E r4 = 00009A20 Function entered at [<c0035094>] from [<c0035790>] r10 = C0008580 r9 = 4401A11B r8 = C0100988 r7 = C0108794 r6 = C0104024 r5 = C01F6000 r4 = 00000001 Function entered at [<c0035720>] from [<c000b6ec>] r6 = C0100760 r5 = C012B84C r4 = C0035720 Function entered at [<c001d36c>] from [<c0009b40>] r10 = C0008580 r9 = 4401A11B r8 = C0122580 r7 = C0108794 r6 = C01218CC r5 = C0100768 r4 = 00000008 Function entered at [<c00099b4>] from [<c0009ba4>] r8 = C0100988 r7 = C0100764 r6 = C0100760 r5 = C012B84C r4 = C0009B94 Function entered at [<c0009b94>] from [<c000b6ec>] r7 = C0100764 r6 = C0100760 r5 = C012B84C r4 = C0009B94 Function entered at [<c00096c4>] from [<c00098b0>] Function entered at [<c00096dc>] from [<c0008080>] r7 = C0121DA0 r6 = C0121CF4 r5 = C012C280 r4 = C012C280 Code: e5821034 e5803000 (e5812000) e59f10a8 e3a02000
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32MB, serial: 10101626
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#196664 - 01/07/2004 18:10
Hijack v395
[Re: bjoern]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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I just found out that this just happens with hijack (394 and 395), not with the standard kernel. It happens with any of my disks in it, I just installed the new primary one.
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32MB, serial: 10101626
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#196665 - 05/07/2004 14:15
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Double-check the address lines.
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Mk2a 60GB Blue. Serial 030102962
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#196666 - 06/07/2004 03:58
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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member
Registered: 03/04/2002
Posts: 169
Loc: Regensburg, Germany
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Thanks! Even though all my pins measured between 0.3 and 0.5 Ohms, I just retouched every single pin (just for the Halibut). Now everything works perfectly! Thanks so much for you patience with me!
Edited by bjoern (06/07/2004 10:17)
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#196667 - 12/07/2004 00:24
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: bjoern]
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journeyman
Registered: 02/07/2004
Posts: 95
Loc: 384400 km from the Moon
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Whew, spent almost whole day on memory upgrade - now with 64MB RAM. The chip stacking and soldering part was easy. The fourth level was soldered in about 40 min. I believe the trick is to use the smallest diameter solder wire or not use the solder at all if lower levels contain enough of it to be able to "paint" the upper joint. Even RAS pins were not that bad. For those pins I broke off the lower half of the pin and bent the pin half way up before bending the rest of the pins. The worst part were the wires. I've got those teflon insulation ones which is a pain to strip. The hardest part with the wires was to solder three 30GA wires to RAS1,2,3 pins on the CPU. Thanks to Paul for making the memory chips available. Now I can do native compilation on the unit ![](/ubbthreads/images/graemlins/cool.gif) The obligatory photo is included.
Attachments
225510-64_meg_ram.jpg (764 downloads)
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#196668 - 12/07/2004 03:55
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: peakmop]
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addict
Registered: 10/11/2000
Posts: 497
Loc: Utah, USA
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ooh, a heat sink!
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-Aaron
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#196669 - 12/07/2004 11:11
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: peakmop]
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carpal tunnel
Registered: 19/01/2002
Posts: 3584
Loc: Columbus, OH
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Probably the nicest looking one I've seen yet.
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~ John
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#196670 - 12/07/2004 12:37
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: peakmop]
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Carpal Tunnel
Registered: 08/02/2002
Posts: 3411
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Very neat. One thing though - the corner of your heatsink is likely to eat your IDE cable.
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Mk2a 60GB Blue. Serial 030102962
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#196671 - 12/07/2004 12:41
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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carpal tunnel
Registered: 15/08/2000
Posts: 4859
Loc: New Jersey, USA
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<Homer voice>
Mmmm... ribbon wire...
</Homer voice>
_________________________
Paul Grzelak 200GB with 48MB RAM, Illuminated Buttons and Digital Outputs
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#196672 - 12/07/2004 13:29
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: genixia]
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journeyman
Registered: 02/07/2004
Posts: 95
Loc: 384400 km from the Moon
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Thanks! About IDE cables - I actually couldn't even install the hard drive cradle on the top of the heat sink with existing ribbons. So, here's what I did... (see the attached picture) ![](/ubbthreads/images/graemlins/smirk.gif) No ribbon cable troubles any longer. Besides, I separated the ribbon part that goes to the empeg connector. I used to have problems of bad IDE connection and received a lot of IDE errors upon boot. After I separated the wires and put some dielectric grease on the header connector, all my problems went away.
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225580-ide_cables.jpg (485 downloads)
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#196673 - 12/07/2004 13:34
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: peakmop]
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journeyman
Registered: 02/07/2004
Posts: 95
Loc: 384400 km from the Moon
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On the additional note, here's what the empeg without the top cover looks like these days... (the picture is attached). I don't have the fancy translucent buttons and front panel (yet), but I try to lobby for those on the other forums ![](/ubbthreads/images/graemlins/grin.gif)
Attachments
225583-completed_empeg.jpg (710 downloads)
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#196674 - 12/07/2004 19:31
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: peakmop]
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carpal tunnel
Registered: 05/01/2001
Posts: 4903
Loc: Detroit, MI USA
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OMG! That's sweet!
So you just put some dielectric grease on the pins of the IDE head and drives before you put the cable on? Where are you getting power for the fan and how is it mounted to the top of the drives?
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Brad B.
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#196675 - 12/07/2004 21:35
Re: Hijack v394: support for up to 64MB DRAM on Mk
[Re: SE_Sport_Driver]
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carpal tunnel
Registered: 17/01/2002
Posts: 3996
Loc: Manchester UK
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Shame, what you guys are doing looks likely to be made redundant by something I've seen at Amersfoort, I won't say anymore but suffice it say I'm glad I didn't modify the spare!
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Cheers,
Andy M
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