{"id":1373,"date":"2013-12-17T16:03:15","date_gmt":"2013-12-17T14:03:15","guid":{"rendered":"https:\/\/zz-indigo.mavipet.sk\/?page_id=1373"},"modified":"2016-08-05T19:30:59","modified_gmt":"2016-08-05T19:30:59","slug":"c-brain","status":"publish","type":"page","link":"https:\/\/zz-indigo.mavipet.sk\/?page_id=1373","title":{"rendered":"C Brain"},"content":{"rendered":"<p>P\u00f4vodne som chcel nie\u010do jednoduch\u00e9 ako PMI-80 ale z 6502 Ale v\u0161etko \u010do som na\u0161iel pou\u017e\u00edva dnes u\u017e nevyr\u00e1ban\u00e9 IO a ich dne\u0161n\u00e1 dostupnos\u0165 a cena je mimo m\u00f4j rozpo\u010det.<\/p>\n<p>Aktu\u00e1lne sa vyr\u00e1baj\u00fa z rady 6502 okrem CPU a MCU len IO obvody PIA\/65c21 VIA\/65c22 ACIA\/65c51. Preto som sa rozhodol pre n\u00e1vrh ktor\u00fd bude vyu\u017e\u00edva\u0165 len tieto obvody a cel\u00e9 rie\u0161enie nebude pou\u017eiva\u0165 IO obvody z in\u00fdch CPU syst\u00e9mov. Preto som si nepostavil nie\u010do od Granta <a title=\"Grant's 8-chip (or 7-chip) 6502 computer\" href=\"http:\/\/searle.hostei.com\/grant\/6502\/Simple6502.html\">1<\/a> <a title=\"How to build your own micro UK101\" href=\"http:\/\/searle.hostei.com\/grant\/uk101\/uk101.html\">2<\/a>. Ale upravil som n\u00e1vrh\u00a0<a href=\"http:\/\/wilsonminesco.com\/6502primer\/potpourri.html\">Garth Wilson-a.<\/a> Menej ROM viac RAM a in\u00e9 rozlo\u017eenie IO.<\/p>\n<h1>HW konfigur\u00e1cia<\/h1>\n<ul>\n<li>CPU R65C02<\/li>\n<li>VIA R65C22 = 0xD000 a\u017e DFFF nastavite\u013en\u00e9 v CPLD<\/li>\n<li>RAM IS61C256 = 32K 0x0000 a\u017e 0x8FFF natvrdo<\/li>\n<li>EEPROM AT28C64 = 8K 0xE000 a\u017e 0xFFFF nastavite\u013en\u00e9 v CPLD<\/li>\n<li>CPLD EPM7064 alebo EPM3064 = IRQ a MNI routing, dek\u00f3dovanie adries pr\u00edpadne nejak\u00fd IO obvod (4 adresy). 4 IO porty s\u00fa voln\u00e9 a vyveden\u00e9 na header.<\/li>\n<li>Zjednodu\u0161en\u00e1 zbernica vyveden\u00e1 na konektor. 16K rozsah CS a IRQ pin ovl\u00e1dan\u00fd CPLD.<\/li>\n<\/ul>\n<h1>Mo\u017enosti konfigur\u00e1cie<\/h1>\n<ul>\n<li>EEPROM m\u00f4\u017ee by\u0165 umiestnen\u00e1 kdeko\u013evek v rozsahu 0x8yyy a\u017e 0xFyyy. Horn\u00e9 4K na F\/D\/B\/9, a doln\u00e9 na E\/C\/A\/8.<\/li>\n<li>CPLD\/VIA\/IOx m\u00f4\u017eu by\u0165 tie\u017e v rozsahu 0x8 a\u017e 0xF.<\/li>\n<li>V CPLD m\u00f4\u017ee okrem z\u00e1kladnej logiky obsahova\u0165 aj \u010fal\u0161iu logiku (SPI\/SERIAL\/IEC\/&#8230;)<\/li>\n<\/ul>\n<h1>Sch\u00e9ma<\/h1>\n<p><a href=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1383 size-large\" src=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain-1024x724.jpg\" alt=\"c brain sch\u00e9ma\" width=\"584\" height=\"413\" srcset=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain-1024x724.jpg 1024w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain-300x212.jpg 300w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain-768x543.jpg 768w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain-1200x848.jpg 1200w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/cbrain.jpg 2046w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a><a title=\"SVN projektu\" href=\"https:\/\/svn.mavipet.sk\/svn\/commodore\/C_BRAIN\/\">Podklady projektu EAGLE,VHDL &#8230;. <\/a>(Nejde v IE nevie tak bezpe\u010dn\u00e9 SSL)<\/p>\n<h1>Fotky rie\u0161enia<\/h1>\n<p>Osaden\u00e9 p\u00e4tice a bi\u017eut\u00e9ria.<\/p>\n<p><a href=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1375 size-large\" src=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051-1024x683.jpg\" alt=\"C Brain petice a bi\u017eut\u00e9ria\" width=\"584\" height=\"390\" srcset=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051-1024x683.jpg 1024w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051-300x200.jpg 300w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051-768x512.jpg 768w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051-1200x800.jpg 1200w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_00051.jpg 2048w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a>Takto to bude vyzera\u0165 ke\u010f to bude &#8222;funk\u010dn\u00e9&#8220; a osaden\u00e9. E\u0161te mi ch\u00fdba oscil\u00e1tor.<\/p>\n<p><a href=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1376 size-large\" src=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007-1024x683.jpg\" alt=\"C Brain osaden\u00fd\" width=\"584\" height=\"390\" srcset=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007-1024x683.jpg 1024w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007-300x200.jpg 300w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007-768x512.jpg 768w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007-1200x800.jpg 1200w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0007.jpg 2048w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a>A v prvej iter\u00e1cii PCB ch\u00fdbal pull-up odpor pre RESET. Na\u0161\u0165astie rie\u0161enie nieje zlo\u017eit\u00e9. Aktu\u00e1lne eagle s\u00fabory ho u\u017e maj\u00fa.<\/p>\n<p><a href=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-1384 size-large\" src=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001-1024x683.jpg\" alt=\"zabudnut\u00fd odpor.\" width=\"584\" height=\"390\" srcset=\"https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001-1024x683.jpg 1024w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001-300x200.jpg 300w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001-768x512.jpg 768w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001-1200x800.jpg 1200w, https:\/\/zz-indigo.mavipet.sk\/wp-content\/uploads\/2013\/12\/IMG_0001.jpg 2048w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>P\u00f4vodne som chcel nie\u010do jednoduch\u00e9 ako PMI-80 ale z 6502 Ale v\u0161etko \u010do som na\u0161iel pou\u017e\u00edva dnes u\u017e nevyr\u00e1ban\u00e9 IO a ich dne\u0161n\u00e1 dostupnos\u0165 a cena je mimo m\u00f4j rozpo\u010det. Aktu\u00e1lne sa vyr\u00e1baj\u00fa z rady 6502 okrem CPU a MCU &hellip; <a href=\"https:\/\/zz-indigo.mavipet.sk\/?page_id=1373\">Pokra\u010dova\u0165 v \u010d\u00edtan\u00ed <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":83,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-1373","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/pages\/1373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1373"}],"version-history":[{"count":1,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/pages\/1373\/revisions"}],"predecessor-version":[{"id":2036,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/pages\/1373\/revisions\/2036"}],"up":[{"embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/pages\/83"}],"wp:attachment":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}