{"id":1544,"date":"2021-08-11T20:48:42","date_gmt":"2021-08-11T18:48:42","guid":{"rendered":"https:\/\/www.pmd85.cz\/?page_id=1544"},"modified":"2022-04-19T16:20:31","modified_gmt":"2022-04-19T14:20:31","slug":"sapi-deska-procesoru-jpr-1s","status":"publish","type":"page","link":"https:\/\/www.pmd85.cz\/?page_id=1544","title":{"rendered":"SAPI &#8211; deska procesoru JPR-1S"},"content":{"rendered":"<p>Tato deska vych\u00e1z\u00ed z origin\u00e1ln\u00ed desky JPR-1, popsan\u00e9 v modr\u00e9m \u010d\u00edsle ARB1\/1983. Deska JPR-1S je v prvn\u00ed \u0159ad\u011b modern\u00ed reinkarnac\u00ed origin\u00e1lu, nav\u00edc m\u00e1 v\u0161ak ur\u010dit\u00e9 odli\u0161nosti, kter\u00e9 jsem po\u017eadoval pro sv\u00e9 aplikace.<\/p>\n<p>Deska JPR-1S je ve spojen\u00ed s <a href=\"https:\/\/www.pmd85.cz\/?page_id=1511\">mikrosb\u011brnic\u00ed<\/a> prim\u00e1rn\u011b ur\u010dena pro testy ostatn\u00edch desek zejm\u00e9na z pohledu sb\u011brnicov\u00fdch operac\u00ed na \u00farovni procesoru \u0159ady 8080. Proto\u017ee p\u0159i testu jedin\u00e9 desky nen\u00ed nutn\u00e9 v\u00edce\u00farov\u0148ov\u00e9 p\u0159eru\u0161en\u00ed a nov\u011b vyv\u00edjen\u00e9 desky u\u017e dnes asi nebudou pot\u0159ebovat DMA, vynechal jsem podporu pr\u00e1v\u011b t\u011bchto dvou funkcionalit. Na druhou stranu lze bezkolizn\u011b navolit zdroj p\u0159eru\u0161en\u00ed bu\u010f ze sb\u011brnice nebo z datov\u00e9ho konektoru K3. Samoz\u0159ejm\u011b si lze zvolit typ odezvy na p\u0159eru\u0161en\u00ed. Bu\u010f automatick\u00e9 vlo\u017een\u00ed instrukce RST7 (obsluha p\u0159eru\u0161en\u00ed na fixn\u00ed adrese 38h) nebo generov\u00e1n\u00ed sign\u00e1lu INTA a interpretaci dodan\u00e9ho vektoru z extern\u00edho \u0159adi\u010de v\u00edce\u00farov\u0148ov\u00e9ho p\u0159eru\u0161en\u00ed. Do u\u0161et\u0159en\u00e9ho m\u00edsta na desce pak byla dopln\u011bna podpora roz\u0161\u00ed\u0159en\u00e9 pam\u011bti RAM, kdy si lze od adresy 4000h nez\u00e1visle po 16kB bloc\u00edch p\u0159ip\u00ednat RAM a\u017e do velikosti 48kB (plus standardn\u00ed 1kB RAM od adresy 2000h).<\/p>\n<div id=\"attachment_1545\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/mJPR-1S-rotated.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"><img aria-describedby=\"caption-attachment-1545\" loading=\"lazy\" class=\"wp-image-1545 size-thumbnail\" src=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/mJPR-1S-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-1545\" class=\"wp-caption-text\">JPR-1S<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Alternativn\u011b lze desku vyu\u017e\u00edt pro drobn\u00e9 demonstra\u010dn\u00ed aplikace, kdy v sestav\u011b:<\/p>\n<ul>\n<li>zdroj EA1605<\/li>\n<li><a href=\"https:\/\/www.pmd85.cz\/?page_id=1511\">mikrosb\u011brnice<\/a><\/li>\n<li>JPR-1S<\/li>\n<li>deska grafiky AND-1x\/DGD-1\/BGP-1<\/li>\n<li><a href=\"https:\/\/www.pmd85.cz\/?page_id=1527\">modernizovan\u00e1 kl\u00e1vesnice ANK-1M5<\/a><\/li>\n<li>redukce pro programov\u011b realizovan\u00fd s\u00e9riov\u00fd p\u0159enos dat<\/li>\n<\/ul>\n<p>je naprosto sob\u011bsta\u010dnou sestavou, umo\u017e\u0148uj\u00edc\u00ed download a spu\u0161t\u011bn\u00ed programu z nad\u0159azen\u00e9ho po\u010d\u00edta\u010de. Na t\u00e9to sestav\u011b budou n\u00e1sledn\u011b lad\u011bny p\u0159ev\u00e1d\u011bn\u00e9 programy z PMD-85.<\/p>\n<p>A na z\u00e1v\u011br je\u0161t\u011b celkov\u00e1 technick\u00e1 specifikace desky:<\/p>\n<ul>\n<li>procesor MHB8080A b\u011b\u017e\u00edc\u00ed na frekvenci 2,000MHz<\/li>\n<li>EEPROM 8kB (AT28C64) um\u00edst\u011bn\u00e1 od adresy 0000h<\/li>\n<li>RAM 1+48kB (standardn\u011b 1kB na adrese 2000h a voliteln\u00e9 bloky 16kB od adresy 4000h)<\/li>\n<li>t\u0159i vstupn\u00ed a t\u0159i v\u00fdstupn\u00ed osmibitov\u00e9 porty (6x MH3212) mapovan\u00e9 jako pam\u011b\u0165 (24xxh, 28xxh a 2Cxxh)<\/li>\n<li>diagnostick\u00e1 LED na v\u00fdstupn\u00edm pinu 80h na adrese 28xxh<\/li>\n<li>konektor kl\u00e1vesnice K2 m\u00e1 p\u0159ivedeno nap\u00e1jen\u00ed +5V na pin 22<\/li>\n<li>pro nap\u011b\u0165ov\u00e9 p\u0159izp\u016fsoben\u00ed vstupn\u00edch sign\u00e1l\u016f 8080A je pou\u017eit obvod 74HCT14<\/li>\n<li>volba zdroje p\u0159eru\u0161en\u00ed (\/INT0 a \/INT1 ze sb\u011brnice nebo vstupn\u00ed sign\u00e1ly port\u016f P2.0 a P2.1)<\/li>\n<li>volba odezvy na p\u0159eru\u0161en\u00ed RST7\/INTA<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/jpr1s.zip\">Dokumentace k desce JPR-1S a desce diagnostiky<\/a><\/p>\n<p><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/jpr1s_sw.zip\">BIOS\/Falcon Monitor 6.1L pro sestavu JPR-1S\/BGP-1S<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tato deska vych\u00e1z\u00ed z origin\u00e1ln\u00ed desky JPR-1, popsan\u00e9 v modr\u00e9m \u010d\u00edsle ARB1\/1983. Deska JPR-1S je v prvn\u00ed \u0159ad\u011b modern\u00ed reinkarnac\u00ed origin\u00e1lu, nav\u00edc m\u00e1 v\u0161ak ur\u010dit\u00e9 odli\u0161nosti, kter\u00e9 jsem po\u017eadoval pro sv\u00e9 aplikace. Deska JPR-1S je ve spojen\u00ed s mikrosb\u011brnic\u00ed prim\u00e1rn\u011b ur\u010dena pro testy ostatn\u00edch desek zejm\u00e9na z pohledu sb\u011brnicov\u00fdch operac\u00ed na \u00farovni procesoru \u0159ady 8080. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":292,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/1544"}],"collection":[{"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1544"}],"version-history":[{"count":8,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/1544\/revisions"}],"predecessor-version":[{"id":1760,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/1544\/revisions\/1760"}],"up":[{"embeddable":true,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/292"}],"wp:attachment":[{"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}