{"id":2229,"date":"2025-06-04T19:36:14","date_gmt":"2025-06-04T17:36:14","guid":{"rendered":"https:\/\/www.pmd85.cz\/?page_id=2229"},"modified":"2025-07-09T19:46:27","modified_gmt":"2025-07-09T17:46:27","slug":"sapi-deska-modemu-dsm-1v","status":"publish","type":"page","link":"https:\/\/www.pmd85.cz\/?page_id=2229","title":{"rendered":"SAPI &#8211; deska modemu DSM-1V"},"content":{"rendered":"<p>Deska DSM-1V vznikla jako jednostrann\u011b zam\u011b\u0159en\u00e1 modernizace desky DSM-1, kter\u00e1 byla sou\u010d\u00e1st\u00ed syst\u00e9mu SAPI ji\u017e od\u00a0 prvopo\u010d\u00e1tku. Nov\u00e1 deska ji\u017e neobsahuje obvody pro p\u0159ipojen\u00ed magnetofonu ani p\u0159\u00edpravu pro proudovou smy\u010dku, pro tyto specifick\u00e9 \u00fa\u010dely je nutno pou\u017e\u00edt zm\u00edn\u011bnou historickou desku DSM-1. Zato v\u0161ak byly na DSM-1V um\u00edst\u011bny dva identick\u00e9 nez\u00e1visl\u00e9 p\u0159enosov\u00e9 kan\u00e1ly, tentokr\u00e1t ji\u017e se standardn\u00edmi 9-pinov\u00fdmi konektory CANON DSUB. Kan\u00e1l A nav\u00edc umo\u017e\u0148uje m\u00edsto rozhran\u00ed RS232C osadit konektor pro TTL \u00farovn\u011b. V rozsahu implementovan\u00fdch funkc\u00ed je deska DSM-1V pln\u011b slu\u010diteln\u00e1 s origin\u00e1lem v\u010detn\u011b program\u00e1torsk\u00e9ho modelu.<\/p>\n<p>D\u00edky pou\u017eit\u00ed modern\u011bj\u0161\u00edch verz\u00ed UARTu MHB1012 (IM6402\/CDP6402\/HD6402) je mo\u017eno volit p\u0159enosov\u00e9 frekvence a\u017e do 115,2kBd (pro oscil\u00e1tor s doporu\u010denou frekvenc\u00ed 3,6864MHz). Ov\u0161em s v\u00fdb\u011brov\u00fdmi UARTy HDx-6402B je mo\u017eno po zv\u00fd\u0161en\u00ed frekvence oscil\u00e1toru a osazen\u00ed konvertory RS232C s odpov\u00eddaj\u00edc\u00ed rychlost\u00ed dos\u00e1hnout p\u0159enosov\u00fdch rychlost\u00ed a\u017e 500kBd. B\u00e1zov\u00e9 V\/V adresy obou kan\u00e1l\u016f lze nastavit na hodnoty 10h, 14h, 18h a 1Ch, stejn\u011b jako u origin\u00e1ln\u00ed desky DSM-1.<\/p>\n<p>Deska DSM-1V byla navr\u017eena s ohledem na minimalizaci rizika odraz\u016f na dlouh\u00e9 sb\u011brnici. Deska byla testov\u00e1na s procesory i8080 i Z80, taktovan\u00fdmi 2 a 4MHz (p\u0159i pou\u017eit\u00ed v\u00fdb\u011brov\u00fdch obvod\u016f UART bylo dosa\u017eeno 8MHz s procesorem Z80.<\/p>\n<h2>Soubory ke sta\u017een\u00ed<\/h2>\n<ul>\n<li><em><span style=\"color: #808080;\">Popis DSM-1V rev. 1.1<\/span><\/em><\/li>\n<\/ul>\n<h2>Galerie obr\u00e1zk\u016f<\/h2>\n<div id=\"attachment_2232\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/dsm1Vrev11.png\" target=\"_blank\" rel=\"noopener\"><img aria-describedby=\"caption-attachment-2232\" loading=\"lazy\" class=\"wp-image-2232 size-thumbnail\" src=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/dsm1Vrev11-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-2232\" class=\"wp-caption-text\">DSM-1V rev. 1.1<\/p><\/div>\n<div id=\"attachment_2240\" style=\"width: 160px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/mDSM-1V_rev.1.1.jpg\" target=\"_blank\" rel=\"noopener\"><img aria-describedby=\"caption-attachment-2240\" loading=\"lazy\" class=\"wp-image-2240 size-thumbnail\" src=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/mDSM-1V_rev.1.1-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-2240\" class=\"wp-caption-text\">DSM-1V rev. 1.1<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Deska DSM-1V vznikla jako jednostrann\u011b zam\u011b\u0159en\u00e1 modernizace desky DSM-1, kter\u00e1 byla sou\u010d\u00e1st\u00ed syst\u00e9mu SAPI ji\u017e od\u00a0 prvopo\u010d\u00e1tku. Nov\u00e1 deska ji\u017e neobsahuje obvody pro p\u0159ipojen\u00ed magnetofonu ani p\u0159\u00edpravu pro proudovou smy\u010dku, pro tyto specifick\u00e9 \u00fa\u010dely je nutno pou\u017e\u00edt zm\u00edn\u011bnou historickou desku DSM-1. Zato v\u0161ak byly na DSM-1V um\u00edst\u011bny dva identick\u00e9 nez\u00e1visl\u00e9 p\u0159enosov\u00e9 kan\u00e1ly, tentokr\u00e1t ji\u017e se [&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\/2229"}],"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=2229"}],"version-history":[{"count":5,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/2229\/revisions"}],"predecessor-version":[{"id":2241,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/2229\/revisions\/2241"}],"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=2229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}