{"id":930204,"date":"2018-02-28T00:16:36","date_gmt":"2018-02-27T23:16:36","guid":{"rendered":"https:\/\/sindik.at\/?p=930204"},"modified":"2018-02-28T20:44:35","modified_gmt":"2018-02-28T19:44:35","slug":"zapisky-02-2018","status":"publish","type":"post","link":"https:\/\/sindik.at\/?p=930204","title":{"rendered":"Z\u00e1pisky 02\/2018"},"content":{"rendered":"

Druh\u00e9 tohtoro\u010dn\u00e9 stretnutie sme pre\u017eili v pekne vyk\u00farenej klubovni napriek tresk\u00facej zime.<\/p>\n

<\/p>\n

Posledn\u00fa febru\u00e1rov\u00fa sobotu sa n\u00e1s zi\u0161lo 5 – Z00m, \u010ci\u017eo, Du\u0161ky, Otis a ja, ale vyskytlo sa n\u00e1s v klubovni ob\u010das aj 7 napriek tomu, \u017ee sme dnu nepustili psa. Priplichtili sa tam toti\u017e sporadicky aj na\u0161i juniori – \u010ci\u017eov Tom\u00e1\u0161ko a m\u00f4j Oliverko<\/p>\n

Ako prv\u00fd od plota hl\u00e1sil pr\u00edchod Z00m. Rozlo\u017eil si nov\u0161ie Pentevo preto\u017ee pr\u00e1ve to m\u00e1 by\u0165 jeho prim\u00e1rna ma\u0161ina na Forever. S mal\u00fdmi prest\u00e1vkami a odbo\u010dkami sa mu venoval a\u017e do konca stretnutia. Napriek jeho \u00fapornej snahe sa mu nepodarilo dosiahnu\u0165 \u017eelan\u00fd stav a rozchodi\u0165 tento stroj. Zo za\u010diatku to vyzeralo, \u017ee Pentevo hnev\u00e1 iba pri TS-Confe, ale nesk\u00f4r sa uk\u00e1zalo, \u017ee ani Pentagon re\u017eim nechod\u00ed bez probl\u00e9mov. V dem\u00e1ch boli jasn\u00e9 \u201cpresluchy\u201d, ktor\u00e9 nav\u00e1dzali k h\u013eadaniu skratu na adresn\u00fdch link\u00e1ch RAM. \u017dia\u013e tam sa probl\u00e9m nepodarilo odhali\u0165 a ani FPGA in\u0161pekcia neodhalila ni\u010d nekal\u00e9ho. Nakoniec Z00m zavrel stroj s t\u00fdm, \u017ee dobre, \u017ee m\u00e1 aj druh\u00e9 – star\u0161ie – Pentevo, ktor\u00e9 chod\u00ed bez probl\u00e9mov. Predpoklad\u00e1m, \u017ee pr\u00e1ve to bude nakoniec jeho prim\u00e1rny stroj na Foreveri.<\/p>\n

Ja som sa, okrem cateringu a nespo\u010detn\u00e9mu mno\u017estvu ciest medzi domom a diel\u0148ou, venoval prim\u00e1rne oprave zdroja PMD-10. U\u017e som str\u00e1cal n\u00e1dej, \u017ee sa mi ho podar\u00ed dosta\u0165 do funk\u010dn\u00e9ho stavu, ale trpezlivos\u0165 a odvaha sa vyplatila. Opravu zdrojov m\u00e1m asi najmenej r\u00e1d. Naozaj to nie je sranda, ke\u010f okolo hlavy strie\u013eaj\u00fa elyty a u\u017e sa podarilo vybi\u0165 p\u00e1r kr\u00e1t aj poistky. K tomu sa mus\u00ed pristupova\u0165 s nutnou d\u00e1vkou opatrnosti a bezpe\u010dnostn\u00fdch opatren\u00ed ako ochrana o\u010d\u00ed a ruka na vyp\u00edna\u010di alebo rovno isti\u010doch. Tentokr\u00e1t to bolo ale in\u00e9. U\u017e pred stretnut\u00edm som vybral v\u00fdstupn\u00e9 vyhladzovacie kondenz\u00e1tory, z ktor\u00fdch u\u017e jeden z trojice [C25-27] na 5V vetve stihol vystreli\u0165. Nahradil som trojicu jedn\u00fdm 1000uF \/ 35V. Zauj\u00edmav\u00e9 bolo, \u017ee na jeho v\u00fdvodoch bolo \u010dosi viac ako 25V, ale v\u00fdstupn\u00e1 LED nesvietila pri\u010dom je evidentne nap\u00e1jan\u00e1 pr\u00e1ve z tejto vetvy. Us\u00fadil som, \u017ee sa zrejme vyp\u00e1lila pri tak vysokom nap\u00e4t\u00ed v\u00fdstupu a bude ju treba vymeni\u0165. Ak\u00e9 bolo moje prekvapenie, ke\u010f som ju premeral a zistl, \u017ee svieti. Bolo teda jasn\u00e9, \u017ee chyba sa skr\u00fdva medzi u\u017e spom\u00ednan\u00fdmi kondenz\u00e1tormi a v\u00fdstupom na LED. A pr\u00e1ve tam sa nach\u00e1dza tlmivka L7, ktor\u00e1 mala jednu nohu \u201codlepen\u00fa\u201d od DPS. Aj preto sa pri vyf\u013eus\u00e1van\u00ed kondenz\u00e1torov ni\u010d neudialo s C28, ktor\u00fd je dimenzovan\u00fd na e\u0161te ni\u017e\u0161ie nap\u00e4tie [6V] ako C25-27 [10V]. Pre lep\u0161ie sledovanie mojich my\u0161lienkov\u00fdch pochodov k\u013eudne nazrite do sch\u00e9my<\/a>. Evidentne ch\u00fdbala sp\u00e4tn\u00e1 v\u00e4zba cez P1 a R16 na pin 3 TDA1060 (B260D) a preto pumpa IO1 – T2 – TR2 – T1 pumpovala na v\u00fdstup st\u00e1le vy\u0161\u0161ie nap\u00e4tie a\u017e 5V vetvu ust\u00e1lila na nepr\u00edjemnej hodnote tesne pod 30V.<\/p>\n

Po zisten\u00ed a odstr\u00e1nen\u00ed z\u00e1vady na tlmivke som osadil nasp\u00e4\u0165 kondenz\u00e1tory s po\u017eadovan\u00fdmi hodnotami, pripojil na 5V v\u00fdstup odpor 15R\/2W a sk\u00fasil zdroj zapn\u00fa\u0165 s kontroln\u00fdmi voltmetrami na v\u0161etk\u00fdch vetv\u00e1ch. Po tejto oper\u00e1cii sa kr\u00e1sne rozbehol, voltmetre ukazovali \u00fadaje v norme a zdroj n\u00e1sledne posl\u00fa\u017eil pre \u010fal\u0161ie laborovanie s PMD85-2A.<\/p>\n

Vo v\u00edre udalost\u00ed pri\u0161iel pred opravou zdroja rad na testovanie PMD85-3, ktor\u00e9 som kedysi z\u00edskal asi od Z00ma, aj ke\u010f na tomto konkr\u00e9tnom kuse u\u017e ch\u00fdbali identifika\u010dn\u00e9 prvky Z\u0160 Krompachy. \u00a0Trojku sme pripojili na PC zdroj s v\u00fdstupom upraven\u00fdm na vhodn\u00fd p\u00e4\u0165kol\u00edk. Ak\u00e9 bolo na\u0161e prekvapenie, ke\u010f sme cez ant\u00e9nny v\u00fdstup na naladenom TV dostali naozaj farebn\u00fd obraz. Spomenuli sme si ako sa to na niektorom f\u00f3re p\u00edsalo, \u017ee tento po\u010d\u00edta\u010d m\u00e1 farebn\u00fd v\u00fdstup nielen na RGB konektore, ale aj cez ant\u00e9nu, ale doteraz to zrejme nikto z n\u00e1s v praxi nesk\u00fasil.<\/p>\n

S pripojenou PMD32SD sme sk\u00fasili spusi\u0165 slideshow skonvertovan\u00fdch ZX obr\u00e1zkov, ale v\u00fdsledok sa teda ani trochu nepodobal tomu \u010do sa d\u00e1 dosiahnu\u0165 s ColorAce<\/a>, ale ani \u0161tandarn\u00e9mu zobrazovaniu bez neho. Farby boli ledva rozpoznate\u013en\u00e9, identifikovate\u013en\u00e9 a m\u00e1lo kontrastn\u00e9. Ne\u010dudo, ve\u010f za b\u00fdval\u00e9ho re\u017eimu nedostupn\u00fd a komplikovan\u00fd farebn\u00fd PAL gener\u00e1tor s kvadrat\u00farnou modul\u00e1ciou bol nahraden\u00fd \u0161tyrmi TTL obvodmi. Testovanie sme uzavreli kon\u0161tatovan\u00edm, \u017ee bez poriadneho RGB v\u00fdstupu a pr\u00edpadne aj doroben\u00e9ho ColorAce si p\u00f4\u017eitok zo slideshow neu\u017eijeme.<\/p>\n

Otis n\u00e1m p\u00fa\u0161\u0165al zo svojho Harlequina 128k \u013e\u00fabiv\u00e9 muzi\u010dky z 90. rokov a potom sa pustil do k\u00f3dovania vyobrazenia klubovej vlajky aj s logom. V\u00fdsledok m\u00f4\u017eete pos\u00fadi\u0165 sami:<\/p>\n

\"\"<\/a>Touto svojou \u010dinnos\u0165ou in\u0161piroval UB-ho aj \u010ci\u017ea, ktor\u00fd ka\u017ed\u00fd nez\u00e1visle chytili podobn\u00fa umeleck\u00fa m\u00fazu. \u010ci\u017eo sa s v\u00fdsledkom tie\u017e pochv\u00e1lil – pozor je to tentokr\u00e1t na C64 s Colors Enhanced. Ve\u010f ako inak by sme mali \u0161ancu vidie\u0165 tak\u00fa s\u00fdtu \u010derven\u00fa \ud83d\ude42<\/p>\n

\"\"<\/a>Popri tom st\u00e1le rezonovala hlavn\u00e1 l\u00ednia hr\u00e1tok s PMD. Podve\u010der mi UB poradil ako pripravi\u0165 ROM modul – \u010di\u017ee RMM s\u00fabor – s Busyho ZX ROM<\/a>, ktor\u00fd je aktu\u00e1lne \u0161\u00edren\u00fd iba v podobe PTP emulovanej p\u00e1sky alebo bin\u00e1rnej forme. Vytvoren\u00fd RMM sme najsk\u00f4r sk\u00fasili podhodi\u0165 emul\u00e1toru a po \u00faspe\u0161nom teste n\u00e1sledne aj vyp\u00e1lili do flash modulu a otestovali na re\u00e1lnom stroji. Ako to u\u017e Murphy zariadil, na po\u010d\u00edta\u010di, ktor\u00fd som mal pr\u00e1ve pod rukou som nemal skompilovan\u00fd GPMD85Emu. Tak\u017ee som stiahol experiment\u00e1lny branch s vylep\u0161en\u00fdm screen renderingom, ktor\u00fd mi absol\u00fatne nechcel pripoji\u0165 \u017eiadny ROM modul do \u017eiadnej verzie emulovan\u00e9ho stroja. Napriek tomu mi UB nadiktoval z hlavy parametre, ktor\u00e9 som nasypal do RMM s\u00faboru<\/a> a komplikovan\u00fdm \u201ccloud-less\u201d sp\u00f4sobom (rozumej cez scp) odoslal na miesto odkia\u013e si to on mohol stiahnu\u0165 a vysk\u00fa\u0161a\u0165 u seba. Podarilo sa a nasledovalo nap\u00e1lenie a spustenie na re\u00e1lnom \u017eeleze:<\/p>\n

\"\"<\/a>Hladom sme po\u010das stretnuta netrpeli. Cel\u00fd \u010das sme mali pod rukou budmerick\u00e9 o\u0161kvarky, v r\u00e1mci obeda pri\u0161la na rad ope\u010den\u00e1 sekan\u00e1 a \u0161tyri dotvoren\u00e9 polotovarov\u00e9 pizze upe\u010den\u00e9 v dom\u00e1cej r\u00fare.<\/p>\n

Kon\u010dili sme a\u017e za tmy, \u010do ale v zimn\u00fdch mesiacoch rozhodne nie je ni\u010d nezvykl\u00e9.<\/p>\n

Stretnutie bolo naozaj skvel\u00e9 a ver\u00edm, \u017ee nie som s\u00e1m komu sa p\u00e1\u010dilo \ud83d\ude42
\n\/ikon<\/p>\n","protected":false},"excerpt":{"rendered":"

Druh\u00e9 tohtoro\u010dn\u00e9 stretnutie sme pre\u017eili v pekne vyk\u00farenej klubovni napriek tresk\u00facej zime.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[7],"tags":[],"class_list":["post-930204","post","type-post","status-publish","format-standard","hentry","category-tema-4-stretnutia-php"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5aqy8-3TZi","jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/930204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=930204"}],"version-history":[{"count":13,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/930204\/revisions"}],"predecessor-version":[{"id":930217,"href":"https:\/\/sindik.at\/index.php?rest_route=\/wp\/v2\/posts\/930204\/revisions\/930217"}],"wp:attachment":[{"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=930204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=930204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sindik.at\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=930204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}