{"id":2120,"date":"2024-09-14T17:48:42","date_gmt":"2024-09-14T15:48:42","guid":{"rendered":"https:\/\/www.pmd85.cz\/?page_id=2120"},"modified":"2024-09-14T18:37:40","modified_gmt":"2024-09-14T16:37:40","slug":"sapi-deska-procesoru-jpr-1v","status":"publish","type":"page","link":"https:\/\/www.pmd85.cz\/?page_id=2120","title":{"rendered":"SAPI &#8211; deska procesoru JPR-1V"},"content":{"rendered":"<div id=\"attachment_2123\" style=\"width: 160px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/JPR-1V_rev._1.1.png\" target=\"_blank\" rel=\"noopener\"><img aria-describedby=\"caption-attachment-2123\" loading=\"lazy\" class=\"wp-image-2123 size-thumbnail\" src=\"https:\/\/www.pmd85.cz\/wp-content\/uploads\/JPR-1V_rev._1.1-150x150.png\" alt=\"\" width=\"150\" height=\"150\" \/><\/a><p id=\"caption-attachment-2123\" class=\"wp-caption-text\">JPR-1V rev. 1.1<\/p><\/div>\n<p>Deska JPR-1V je procesorov\u00e1 deska na b\u00e1zi procesoru Z80, a je vylep\u0161enou p\u0159\u00edmou n\u00e1hradou p\u016fvodn\u00ed JPR-1Z. Deska m\u00e1 tyto parametry:<\/p>\n<ul>\n<li>100% kompatibiln\u00ed s JPR-1Z<\/li>\n<li>ur\u010dena pro opera\u010dn\u00ed syst\u00e9m CP\/M<\/li>\n<li>procesor Z80<\/li>\n<li>frekvence sb\u011brnice 2MHz, frekvence CPU 2\/4MHz<\/li>\n<li>zkr\u00e1cen\u00fd RESET pro sou\u010dinnost s DRAM<\/li>\n<li>vlastn\u00ed odpojiteln\u00e1 BOOT ROM (2x 2kB)<\/li>\n<li>t\u0159i standardn\u00ed vstupn\u00ed a t\u0159i v\u00fdstupn\u00ed br\u00e1ny (mapov\u00e1n\u00ed IO na adres\u00e1ch 1, 2 a 3)<\/li>\n<li>pin 22 konektoru K2 p\u0159ipraven pro kl\u00e1vesnice Consul (+5V)<\/li>\n<li>v\u0161echny v\u00fdstupn\u00ed sign\u00e1ly CPU zes\u00edleny budi\u010di<\/li>\n<li>opravena chyba generov\u00e1n\u00ed sign\u00e1lu STSTB pro mapov\u00e1n\u00ed pam\u011bti<\/li>\n<\/ul>\n<p>Tato deska byla spolu s deskami AND-1V, DGD-1V a RAM-1V zkou\u0161ena na nov\u00e9 &#8222;palcov\u00e9&#8220; sb\u011brnici ARB-1 ImBUS9 na frekvenci CPU 10MHz (sb\u011brnice 5MHz) s dlouhodob\u011b stabiln\u00edm chodem. Standardn\u00ed desky syst\u00e9mu SAPI v\u0161ak na tuto frekvenci nejsou projektov\u00e1ny, zejm\u00e9na ty s perifern\u00edmi obvody 8251, 8253, 8255, 8271, 8272 apod.<\/p>\n<p>Deska generuje standardn\u00ed frekvenci sb\u011brnice 2MHz, kterou lze v\u0161ak zv\u00fd\u0161it a\u017e na zm\u00edn\u011bn\u00fdch 5MHz. Frekvence CPU se pomoc\u00ed JUMPERu na desce vol\u00ed bu\u010f stejn\u00e1 jako frekvence sb\u011brnice, nebo jako jej\u00ed dvojn\u00e1sobek. P\u0159epnut\u00ed frekvence CPU lze prov\u00e1d\u011bt za chodu programu.<\/p>\n<p>Vestav\u011bn\u00e1 pam\u011b\u0165 BOOT ROM o kapacit\u011b 8kB vyu\u017e\u00edv\u00e1 pouze dv\u011b banky 2kB se dv\u011bma alternativn\u00edmi zavad\u011b\u010di, rovn\u011b\u017e p\u0159ep\u00ednateln\u00fdmi pomoc\u00ed JUMPERu na desce.<\/p>\n<p>Oba konfigura\u010dn\u00ed JUMPERy na desce je mo\u017eno vyv\u00e9st na tla\u010d\u00edtka na ovl\u00e1dac\u00edm panelu.<\/p>\n<p>Po restartu syst\u00e9mu je V\u017dDY spu\u0161t\u011bna zvolen\u00e1 varianta intern\u00ed BOOT ROM na adres\u00e1ch 0000h &#8211; 07FFh (2kB). Zbyl\u00fdch 62kB pam\u011bti m\u016f\u017ee b\u00fdt p\u0159\u00edtomno na sb\u011brnici. Zavad\u011b\u010d po zaveden\u00ed syst\u00e9mu provede z\u00e1pis na port s adresou 00h, \u010d\u00edm\u017e se odpoj\u00ed BOOT ROM, a deska tak m\u016f\u017ee adresovat pln\u00fdch 64kB na sb\u011brnici. B\u011bhem re\u017eimu BOOT je potla\u010deno \u010dten\u00ed pam\u011bti ze sb\u011brnice v adresn\u00edm rozsahu 0000h-07FFh (\u010dte se z intern\u00ed BOOT ROM), zat\u00edmco z\u00e1pis je do t\u00e9to oblasti povolen. \u010cten\u00ed a z\u00e1pis v adresn\u00edm rozsahu 0800h &#8211; FFFFh nen\u00ed v \u017e\u00e1dn\u00e9m re\u017eimu desky omezen. Syst\u00e9m mapov\u00e1n\u00ed pam\u011bti pomoc\u00ed sign\u00e1l\u016f MAP1\/MAP2 nem\u00e1 vliv na volbu a funkci BOOT ROM. B\u011bhem re\u017eimu BOOT sv\u00edt\u00ed \u010derven\u00e1 LED. Jej\u00ed zhasnut\u00ed indikuje ukon\u010den\u00ed re\u017eimu BOOT a p\u0159echod na plnou adresaci pam\u011bti na sb\u011brnici, v\u011bt\u0161inou to rovn\u011b\u017e znamen\u00e1 start c\u00edlov\u00e9ho syst\u00e9mu.<\/p>\n<h2>Soubory ke sta\u017een\u00ed<\/h2>\n<ul>\n<li><em><span style=\"color: #808080;\">Popis JPR-1V rev. 1.1<\/span><\/em><\/li>\n<\/ul>\n<h2>Galerie obr\u00e1zk\u016f<\/h2>\n<div class=\"mceTemp\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Deska JPR-1V je procesorov\u00e1 deska na b\u00e1zi procesoru Z80, a je vylep\u0161enou p\u0159\u00edmou n\u00e1hradou p\u016fvodn\u00ed JPR-1Z. Deska m\u00e1 tyto parametry: 100% kompatibiln\u00ed s JPR-1Z ur\u010dena pro opera\u010dn\u00ed syst\u00e9m CP\/M procesor Z80 frekvence sb\u011brnice 2MHz, frekvence CPU 2\/4MHz zkr\u00e1cen\u00fd RESET pro sou\u010dinnost s DRAM vlastn\u00ed odpojiteln\u00e1 BOOT ROM (2x 2kB) t\u0159i standardn\u00ed vstupn\u00ed a t\u0159i v\u00fdstupn\u00ed [&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\/2120"}],"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=2120"}],"version-history":[{"count":6,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/2120\/revisions"}],"predecessor-version":[{"id":2131,"href":"https:\/\/www.pmd85.cz\/index.php?rest_route=\/wp\/v2\/pages\/2120\/revisions\/2131"}],"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=2120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}