Retrobrew Computers Forum I Will Try to Spend Some Time in the Next Week Updating the Page for This Board on the New Wiki
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Subject: 6x0x-ATX-6U BOM Posted by brizza on Sat, 04 Feb 2017 01:22:08 GMT View Forum Message <> Reply to Message Hi Guys, It's been a while. I'm restarting a couple builds that have been collecting dust on the shelf for the last 2 years. I should have most of the parts but a BOM would be a handy reference to go with the board layout. Does anyone have a BOM for the 6x0x-ATX-6U revision 2-013 board? I see that Alex posted an excel file with part numbers but the links on the introduction page are not working. Thanks. Nik Subject: Re: 6x0x-ATX-6U BOM Posted by Jonas on Sat, 04 Feb 2017 09:53:05 GMT View Forum Message <> Reply to Message https://retrobrewcomputers.org/n8vem-pbwiki-archive/0/358453 34/48860639/70137767/index.htm Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Sat, 04 Feb 2017 11:18:52 GMT View Forum Message <> Reply to Message Hi Jonas, Thanks, i'm building up an order with digi-key and the excel file is a great help. Cheers, Nik Subject: Re: 6x0x-ATX-6U BOM Posted by Jonas on Sat, 04 Feb 2017 13:45:56 GMT View Forum Message <> Reply to Message Good luck! I would like to build this board myself, or rather two, given the CPU and OS alternatives! Subject: Re: 6x0x-ATX-6U BOM Posted by Andrew B on Sat, 04 Feb 2017 16:53:23 GMT View Forum Message <> Reply to Message Page 1 of 9 ---- Generated from RetroBrew Computers Forum I will try to spend some time in the next week updating the page for this board on the new wiki. The software was kind of spread across the old wiki too, some of it was dual use with the old three-board stack 6x0x and the new version. Subject: Re: 6x0x-ATX-6U BOM Posted by jcoffman on Sat, 04 Feb 2017 17:11:51 GMT View Forum Message <> Reply to Message If anyone is wanting to install the 6809, be very careful: there are 2 incompatible versions of the CPU chip: 6809 vs. 6809E. The 68B09 (B is speed variation) is the preferred (faster) chip. The board cannot use the -E variant. --John Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Sat, 04 Feb 2017 23:15:17 GMT View Forum Message <> Reply to Message Thanks for the support. I plan on installing the 6809 and running flex, seems to be alot of software support for the flexos. A pity the board cannot use the 6809E cpu, love to be able to play the Cuthbert games from the old Coco Computers. Subject: Re: 6x0x-ATX-6U BOM Posted by jcoffman on Sat, 04 Feb 2017 23:44:37 GMT View Forum Message <> Reply to Message There is only a difference between the 6809 & the 6809E in the way that they are clocked. Only the 6809 pin assignment was anything like the other 2 CPUs which will fit the board. I am not aware of an instruction set difference between the 6809 & 6809E. I suggest giving the game a try. If the OS runs, then the game likely runs. --John Subject: Re: 6x0x-ATX-6U BOM Page 2 of 9 ---- Generated from RetroBrew Computers Forum Posted by tor on Sun, 05 Feb 2017 01:46:41 GMT View Forum Message <> Reply to Message Yep, there are no instruction set differences, the E is only about the clocking. Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Sun, 05 Feb 2017 11:52:56 GMT View Forum Message <> Reply to Message Thanks. Would be nice if it did ! The 32K SRAM "skinny DIP" is proving to be a little difficult to find in the usual places. Jameco part 75037 is no longer available. I have searched by description at Digikey but they dont seem to have the corrrect package type. Any suggestions as to an alternative part? The description i am using from the Jameco catalog is "AS7C256". Thanks. Nik Subject: Re: 6x0x-ATX-6U BOM Posted by Andrew B on Sun, 05 Feb 2017 15:59:08 GMT View Forum Message <> Reply to Message http://www.questcomp.com/questdetails.aspx?pn=AS7C256-10JC&a mp;mpid=108258413&pt=4 Subject: Re: 6x0x-ATX-6U BOM Posted by jcoffman on Sun, 05 Feb 2017 18:19:33 GMT View Forum Message <> Reply to Message 32Kx8 .300" 28-pin dips inclued: Cypress CY7C199-35 (which I used), IDT 71256-xxTPG (digikey) xx is speed, Alliance AS7C256B-xx (xx is speed) Digikey has the IDT and Alliance chips in stock. Subject: Re: 6x0x-ATX-6U BOM Posted by norwestrzh on Mon, 06 Feb 2017 03:31:59 GMT View Forum Message <> Reply to Message Look for old PC CMOS SRAM pulls. They are *very* fast. If you can't find any, I have some I can send to you. Contact me off-line at my AOL address. UserID is "norwestrzh". I think you can reconstruct the e-mail address from these two sentences! *grin* Roger Page 3 of 9 ---- Generated from RetroBrew Computers Forum Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Mon, 06 Feb 2017 07:20:52 GMT View Forum Message <> Reply to Message Thanks again and for your kind offer Roger! Since i'm building an order with Digikey i'll go with the IDT71256 25ns, couldnt find anything faster that was in stock. hopefully it will work ok. The board is looking good now with most of the solder work done. Just waiting on parts now. Final question about the CPU, i am seeing 68B09EP, EF68B09P, MC68B09P, on Ebay and then there is a HD6809P which i have in my draw at home. Will any of these do? Nik Subject: Re: 6x0x-ATX-6U BOM Posted by jcoffman on Mon, 06 Feb 2017 15:52:28 GMT View Forum Message <> Reply to Message RE: which CPU to buy Make sure the CPU# does not have any -E suffix. The -E version is electrically incompatible with the board. Specifically, one of the CPU's you mentioned had the suffix "-EP". Don't get this one. -P suffix, on this and other parts, just means "plastic" package, rather than ceramic. Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Mon, 06 Feb 2017 23:35:19 GMT View Forum Message <> Reply to Message Thanks John and All for your support! Nik Subject: Re: 6x0x-ATX-6U BOM Posted by computerdoc on Fri, 10 Feb 2017 10:35:57 GMT View Forum Message <> Reply to Message You can also get the HD63C09P variety for this board. It's pin compatible with the MC68B09P chip. Color Computer users have been upgrading to this Hitachi chip a number of years now. Subject: Re: 6x0x-ATX-6U BOM Page 4 of 9 ---- Generated from RetroBrew Computers Forum Posted by brizza on Fri, 10 Feb 2017 13:13:19 GMT View Forum Message <> Reply to Message Thankyou. Found someone on Ebay (hongkongsupply) selling them new at AUD6.00 each. Nice price. Nik Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Sat, 01 Apr 2017 14:12:15 GMT View Forum Message <> Reply to Message Hi, Getting closer to completing the board now after a long wait for parts. I plan to run flex but i'm having problems with the PropIO. After reading some of the archived posts i think i may need to recompile the existing spin code for the eeprom. Just wondering which compiler was used for the original code provided in the ZIP file on the wiki? The Parallax Compiler Software does not recognize #define and the BST Compiler is also throwing out errors in reference to the definitions. The board has video but output did not go further than; Starting PropIO before mount after mount After commenting out the #define statements and removing references to CP/M and DOS65 i get a little further; Starting PropIO before mount after mount in FindSDblock FLEX_0.DSK=01A0,R T:00 S:02,Disk geometry: T:79 S:72 FLEX_1.DSK=0CE0,R T:00 S:02,Disk geometry: T:79 S:40 FLEX_2.DSK=1320,R T:00 S:02,Disk geometry: T:254 S:255 FLEX_3.DSK=9224,R T:00 S:02,Disk geometry: T:79 S:36 FLEX.SYS=0190,R T:00 S:02, Disk geometrty: T:0 S:0 after findSD Disk buffer start=393C I'm using 64MB SD cards, Kodak and Sandisk. Serial output not tested yet but should receive the headers this week sometime. Any suggestions would be welcomed. Thanks, Nik Subject: Re: 6x0x-ATX-6U BOM Page 5 of 9 ---- Generated from RetroBrew Computers Forum Posted by brizza on Sat, 01 Apr 2017 21:58:27 GMT View Forum Message <> Reply to Message should have mentioned also, the change i was trying to make to the spin code as per the readme me file. "Currently uses 'mb_rawb_spi' object in fsrw for faster SD card access. If it doesn't work, recompile with 'safe_spi' " Nik Subject: Re: 6x0x-ATX-6U BOM Posted by brizza on Mon, 03 Apr 2017 13:37:11 GMT View Forum Message <> Reply to Message well, BST will compile the spin code after changing preferences to allow non-parallax compatible extensions but pretty much the same results; Starting PropIO before mount after mount in FindSDblock FLEX_0.DSK=01A0,R T:00 S:02,Disk geometry: T:79 S:72 FLEX_1.DSK=0CE0,R T:00 S:02,Disk geometry: T:79 S:40 FLEX_2.DSK=1320,R T:00 S:02,Disk geometry: T:254 S:255 FLEX_3.DSK=9224,R T:00 S:02,Disk geometry: T:79 S:36 FLEX.SYS=2200,R T:00 S:02, Disk geometrty: T:0 S:0 after findSD Disk buffer start=3910 then just hangs I have ordered a couple of 1GB no name high speed sd cards from China, hopefully will more luck with these.