Xenophon Posted August 8, 2015 Share Posted August 8, 2015 I've been pondering for some time about building my own Super Colecovision console/computer and now I feel iit's the time to strike ! So I've bought some breadboard, wire, already had tools soldering iron etc and am now doing a draft design and looking at what components ICs I'll need. OK my knowledge of microcomputers and electronics isn't great, but that's the whole point I'll be on a steep learning curve and even if I don't make a working Colecovision (which is most likely) at least I tried and learnt stuff on the way ! Is anyone else doing a similar sort of thing >? Quote Link to comment Share on other sites More sharing options...
Tursi Posted August 9, 2015 Share Posted August 9, 2015 Apparently yes! http://atariage.com/forums/topic/241347-whats-happening-with-the-colecovision-neo/ http://atariage.com/forums/topic/216282-colecovision-12-replacement-pcb-added-features/page-4 http://atariage.com/forums/blog/586/entry-12218-creating-an-arcade-colecovision-clone/ Quote Link to comment Share on other sites More sharing options...
Xenophon Posted August 10, 2015 Author Share Posted August 10, 2015 (edited) My draft design (to breadboard) would be : Z80 CPU (possibly Z84C0006PEC or Z84C0008PEC) as these are very cheap: http://www.ebay.com/itm/10PCS-Z84C0006PEC-Z80-CPU-Encapsulation-DIP-/371218968377?pt=LH_DefaultDomain_0&hash=item566e5fef39 http://www.ebay.com/itm/10pcs-Z84C0008PEC-Z84C0008-DIP-40-/171399504172?hash=item27e834e12c SRAM (static RAM) as opposed to the original DRAMs .. probably use 64K to allow CP/M option ?? EPROM 27C64 for O/S etc ? V99x8 Video (seen several schematics of boards already done) making this somewhat easier SN76489 Sound Chip YMZ284 / AY-3-8910 Sound chip for MSX sound Glue logic / could be TTL /PLD/GAL or a CPLD yet to decide Shall start breadboarding as soon as stuff arrives, all going well ! Edited August 10, 2015 by Xenophon Quote Link to comment Share on other sites More sharing options...
chart45 Posted August 10, 2015 Share Posted August 10, 2015 i did 24k ram mod this give you a way to play adam supergame on you colecovision super zaxon bucksrogers Quote Link to comment Share on other sites More sharing options...
Megatron1999 Posted August 10, 2015 Share Posted August 10, 2015 i did 24k ram mod this give you a way to play adam supergame on you colecovision super zaxon bucksrogers But perhaps it's time for a New Colecovision ? Original ones are quite expensive now and getting rarer (especially in UK) Quote Link to comment Share on other sites More sharing options...
Megatron1999 Posted August 10, 2015 Share Posted August 10, 2015 (edited) I've got G540 Universal Programmer good for programming GALs/PLDs, EPROMs,EEPROMs etc http://www.ebay.com/itm/G540-USB-Universal-EPROM-FLASH-GAL-AVR-PIC-Programmer-/121385641896?hash=item1c4325e7a8 USB Blaster .. a cheap programmer to program CPLDs like the Altera MAX EPM7128SLC84 http://www.ebay.com/itm/Altera-Mini-Usb-Blaster-Cable-For-CPLD-FPGA-NIOS-JTAG-Altera-Programmer-/371397950823?hash=item56790afd67 Edited August 10, 2015 by Megatron1999 Quote Link to comment Share on other sites More sharing options...
dirty-harry Posted August 10, 2015 Share Posted August 10, 2015 Spotted this on ebay.com http://www.ebay.com/itm/Zilog-Z80-Colecovision-Kit-8MHz-Z80-MSX-Homebrew-/151686369904?pt=LH_DefaultDomain_0&hash=item2351365270 Bought stuff from them before and they are OK to deal with, though stuff from China takes forever to arrive ! Quote Link to comment Share on other sites More sharing options...
lezanderson Posted August 10, 2015 Share Posted August 10, 2015 Spotted this on ebay.com http://www.ebay.com/itm/Zilog-Z80-Colecovision-Kit-8MHz-Z80-MSX-Homebrew-/151686369904?pt=LH_DefaultDomain_0&hash=item2351365270 Bought stuff from them before and they are OK to deal with, though stuff from China takes forever to arrive ! I've bought stuff from funkward-tech , G&C Supermarket and a few other Chinese Suppliers, on the whole I had no problems, obviously with some of the ICs being pulls watch out for the odd DUFF IC, I got a few faulty ICs, they where replaced for free.. so check the ICs as soon as they arrive if possible. The Cheap Z84C0020PECs on ebay.com are 'Remarked/labelled' old NMOS Z80s (Z80A,Z80B,Z80H) so be aware of that. I got some (10pcs) and found 80% worked fine at 4MHz+ some even worked at 16MHz but they where NOT 20MHz Z84C0020s ! Quote Link to comment Share on other sites More sharing options...
lezanderson Posted August 10, 2015 Share Posted August 10, 2015 I've done costings for a similar type of thing you may find helpful (or not): Rough guide to costing ! Z84C0008PEC Z80 CPU DIP40 $2.0 each UM61512 64K SRAM narrow DIP32 $1.50 each or so HM61256 32K SRAM DIP28 <$1.0 each M27C64 8K EPROM <$1.0 each W27C512 EEPROM (DIP/PLCC) <$1.0 each EPM7128SLC CPLD 64 I/O lines $2.0 each V9958 VDP $7.0 each D41464x-10 DIP $0.75 each CXA1645/1145 PAL/NTSC encoder $1.45 each SN76489 PSG Sound Chip $0.50 each AY-3-8910 PSG MSX $1.40 each 8255 PIO about $1.80 each ATmega88 MCU $1.0 each AT89C2051 MCU <$1.0 each Optional : RTC (DS12C887) $2.0 each Z84C9008VSC Z80 CTC,PIO,SIO $2.0 each AM9511 Maths Co processor $2.50 each these prices where quoted by funkward-tech as I've got these ICs before from them. Obviously you could by from mouser,Digikey etc, but you'd pay about five times as much, it all depends on how you feel about getting ICs from China. ---- Quote Link to comment Share on other sites More sharing options...
Megatron1999 Posted August 12, 2015 Share Posted August 12, 2015 I spotted these kits on ebay.com.. that's if your into designing/.making hardware. http://stores.ebay.com/P-A-Electro-Components/DIY-Homebrew-Kits-/_i.html?_fsub=8692137013&_sid=1037341693&_trksid=p4634.c0.m322 Quote Link to comment Share on other sites More sharing options...
dirty-harry Posted August 13, 2015 Share Posted August 13, 2015 Are there other people interested in Z80 DIY hardware design..perhaps we could get enough interest to make a user group or Forum ? Getting people into designing & making hardware must be a good thing ! Quote Link to comment Share on other sites More sharing options...
bad robot Posted August 25, 2015 Share Posted August 25, 2015 I've been pondering for some time about building my own Super Colecovision console/computer and now I feel iit's the time to strike ! So I've bought some breadboard, wire, already had tools soldering iron etc and am now doing a draft design and looking at what components ICs I'll need. OK my knowledge of microcomputers and electronics isn't great, but that's the whole point I'll be on a steep learning curve and even if I don't make a working Colecovision (which is most likely) at least I tried and learnt stuff on the way ! Is anyone else doing a similar sort of thing >? Hi. Did you get any interest in a Z80 hardware group ?? Quote Link to comment Share on other sites More sharing options...
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