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Thread: 8MB RAM to 68000 socket

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    mkl's Avatar
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    Default 8MB RAM to 68000 socket

    Please post interest to the linked thread instead (in order to keep lists 'linear'): http://www.amibay.com/showthread.php...600-CF-adapter
    I will make a list of interested, perhaps to first post of thread.


    0 available.
    Options for config out, in, or ram on even without autoconfig( use addmem program)

    Info http://www.mkl211015.altervista.org/ram68k/

    Please post interest post including IDE board (RAM board soldered to same pins) to the linked thread: http://www.amibay.com/showthread.php...600-CF-adapter

    V59 boards will be for sale. 40€ + postage,which is 2.20€ to Europe / 3.30€ world. (50 grams priority untracked letter postage, packaged in small shipping carton, antistatic bubble bag for memory card.) Registered (signed-for) tracking service for +9.80€ extra.
    Click image for larger version. 

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    2 pcs v59 blank pcbs with postage 10€
    Click image for larger version. 

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    A500, A1000, A2000, (CDTV with addmem-command OR hacking autoconfig signal from or to mainboard?).
    v59 cpld config signal options: "O582" out (drives led for indication), old version in "I582", new config in version with ram always enabled regardless of autoconfig ".583" to use with autoconfig or addmem-command, to be made.

    Also 4meg config options by programming the cpld code via jtag.

    V58/59 doesnt need riser socket, when placed on top of v402/418 style ide boards, but it maybe tight with the polarising tab of idc cable connector or maybe not fit with boxed ide header.

    About dram refresh:
    To refresh, the cpld uses cas before ras refresh when 68000 address strobe(/AS) is negated. I dont know if 68010 will release /AS in loop transfer mode? Refreshing can be delayed perhaps.

    Old V40,42,43 with 5 volt dram,: V42 with 3.3v xc9572xl, 5v 4m x 16 edo dram, v40 5volt parts
    Combination with v4x ram, v402 ide board requires a riser socket in between the boards.
    Ide v402 low profile and v4x ram wont attach to each other directly. Cpld chips "collide" preventing complete insertion. Ram on top will not fit because of ideconnector. Riser socket adds height.
    part list for v43 pcb
    edo dram KM416C4104 (suffix can be 'C')
    XC9572XL tqfp-100 (tq/tqg100) (
    regulator LM3480 - 3.3 volt (i have some for sale if needed)
    led size 1206 (or 0805) + 330 ohm series R 1206
    connectors. pin headers (not necessary).
    64 pcs 'socket pins' (I bought new one at aliexpress, search mx cherry led)
    capacitor notes in picture at www.mkl211015.altervista.org/ram68k/
    Last edited by mkl; 16th July 2018 at 18:49.
    http://mkl211015.altervista.org/ide/ide68k.html email&paypal: mlvhct@gmail.com See first post of for-sale thread for up to date availability info

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    Gravislord's Avatar
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    Default

    Interested

    Sent from my Robin using Tapatalk

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    OXCOM's Avatar
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    Declare interest, if this is still available. Next batch?

    ----------

    PM sent.
    Last edited by OXCOM; 10th August 2017 at 11:56. Reason: PM

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    I too am interested for my CDTV if there are any available OR another batch.
    A500(+), CDTV, A1200HD, BBC Model B
    ZX80CoreV1.1, ZX81, Spec 16K, 48K, 128K, +2A, +3, QL, TS1500
    Enterprise 64, 128(576K), Sam Coupe (512K + Atom),
    Amstrad CPC464 Plus, 6128, Mega PC, iMac 2010, i7 PC with SLi (Oculus)

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    fery1200's Avatar
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    Declare interest.

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    jochen's Avatar
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    Interested if you have new ones for my CDTV.
    Does it autoconfig?
    Last edited by jochen; 10th August 2017 at 10:58.

  7. #7
    mkl's Avatar
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    Autonfig out signal.
    Attached Thumbnails Attached Thumbnails IMG_20170810_124204.jpg  
    http://mkl211015.altervista.org/ide/ide68k.html email&paypal: mlvhct@gmail.com See first post of for-sale thread for up to date availability info

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    i've one of these (in an older version).. but i am wondering if it is possible to switch off autoconfig but still use "addmem" or similar to use the memory?

  9. #9
    mkl's Avatar
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    It would require change in cpld code, now ram output at least disabled when autoconfig not done.
    It is possible to change the cpld config.
    Last edited by mkl; 16th August 2017 at 21:11.
    http://mkl211015.altervista.org/ide/ide68k.html email&paypal: mlvhct@gmail.com See first post of for-sale thread for up to date availability info

  10. #10
    mkl's Avatar
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    A couple of V58 for sale for a few days, then no sale for a few weeks. ( V40 and v42 one each available, but at the moment in other bay)
    Last edited by mkl; 20th August 2017 at 09:46.
    http://mkl211015.altervista.org/ide/ide68k.html email&paypal: mlvhct@gmail.com See first post of for-sale thread for up to date availability info

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