Fusion converter
Parts list
- MVS connectors http://www.digikey.com/product-detail/en/ECC60DJBN/S7280-ND/1196520
- PCBs from PCBCART
- EPM240T100C5N http://fr.farnell.com/altera/epm240t100c5n/max-ii-isp-cpld-240-tqfp100-240/dp/1453503
- 1117 3.3V LDO http://fr.farnell.com/diodes-inc/ap1117e33g-13/regulateur-ldo-3-3v-sot223/dp/1825291
- 74HCT245 http://fr.farnell.com/texas-instruments/sn74hct245dw/emetteur-recepteur-de-bus-octal/dp/9591923
- 74HCT08 http://fr.farnell.com/texas-instruments/sn74hct08d/ic-quad-gate-2i-p-soic-14/dp/2136927
Build log
Warning ! This page contains a build log, and therefor schematics and layouts which aren't tested or which contain errors. DO NOT attempt to build anything described here.
Schematics for review, please post comments/suggestions/fixes with signature.
Both boards sent to fab --Furrtek 23:43, 6 August 2012 (CEST)
Boards received, will start tests the 9th --Furrtek 01:22, 4 September 2012 (CEST)
According to documentation, MAX II isn't 5v tolerant. --Hpman 15:40, 5 September 2012 (CEST)
True, will do basic durability tests. If they fail, I'll add level translators as suggested. --Furrtek 02:28, 7 September 2012 (CEST)
Errors on first prototype:
- 4MB/ROMOE swapped because of part-footprint link wasn't updated.
- 245s in the wrong direction (AB/BA), added an ALS04 inverter on direction pins to fix.
- Cut /ROMOEL to AND (wasn't going low ?), connected /ROMOE instead.
- Missing connections for LOAD, H and EVEN to the CPLD, added jumper wires to pins 48, 49 and 50 respectively.
- Zoom problems, will try adding the RC delay on EVEN.
Puzzled works, KOF95 seems to work with some bad colors (maybe bad palette ram), Metal Slug 2 resets at the title screen.
--Furrtek 04:21, 10 September 2012 (CEST)
File:Ohconvprogirl.jpg File:Ohconvchairl.jpg
