{"id":219,"date":"2024-08-27T15:25:46","date_gmt":"2024-08-27T14:25:46","guid":{"rendered":"https:\/\/www.8bit-replicas.com\/?p=219"},"modified":"2026-02-05T21:58:48","modified_gmt":"2026-02-05T20:58:48","slug":"programator-pamati-prom-v1-2","status":"publish","type":"post","link":"https:\/\/www.8bit-replicas.com\/index.php\/2024\/08\/27\/programator-pamati-prom-v1-2\/","title":{"rendered":"Program\u00e1tor pam\u00e4t\u00ed PROM v1.2"},"content":{"rendered":"\n

B\u011bhem pou\u017e\u00edv\u00e1n\u00ed program\u00e1toru PROM-Prog<\/a> vykrystalizovaly n\u011bkter\u00e9 vlastnosti, kter\u00e9 mi chyb\u011bly. Tak\u017ee jsem se pustil do \u00fapravy firmware a tyto drobnosti upravil a tak\u00e9 p\u0159idal n\u011bco nav\u00edc.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n\n\n\n\n

Prvn\u00ed v\u011bc\u00ed co jsem pot\u0159eboval, aby program\u00e1tor p\u0159i p\u00e1len\u00ed kontroloval spr\u00e1vnost i bit\u016f, kter\u00e9 nep\u00e1lil. To jsem ud\u011blal a vylep\u0161il je\u0161t\u011b nav\u00edc tak, \u017ee nyn\u00ed zbyte\u010dn\u011b nep\u00e1l\u00ed ji\u017e vyp\u00e1len\u00e9 bity ale kontroluje naopak zcela v\u0161echny. Pokud p\u00e1len\u00ed skon\u010d\u00ed novou hl\u00e1\u0161kou „SUCCESS“, m\u016f\u017eete si b\u00fdt jist\u00ed, \u017ee PROM p\u0159esn\u011b odpov\u00edd\u00e1 cel\u00e9mu programu.<\/p>\n\n\n\n

Nov\u00e1 funkce Verifikace (VF). P\u0159i verifikaci se porovn\u00e1v\u00e1 obsah programu a pr\u00e1v\u011b \u010dten\u00e9ho \u010dipu v patici. Na konci se objev\u00ed po\u010det chyb nebo „Verify OK“. Touto funkc\u00ed lze realizovat i tzv. Blank check, sta\u010d\u00ed spustit Verifikaci po zapnut\u00ed program\u00e1toru, kdy je program nulov\u00fd, tzn. sam\u00e9 nuly. Porovn\u00e1 se tedy, zda jsou v \u010dipu sam\u00e9 nuly – \u010dili pr\u00e1zdn\u00e1 PROM.<\/p>\n\n\n\n

Po\u010d\u00edtadlo chyb bylo d\u0159\u00edve jen do 255 (Byte), pak p\u0159eteklo, nyn\u00ed se m\u016f\u017ee zobrazit chyb v\u00edce.<\/p>\n\n\n\n

Pro lep\u0161\u00ed p\u0159ehlednost jsem nechal zobrazovat vedle bin\u00e1rn\u00edho tvaru obsahu i hexadecim\u00e1ln\u00ed v prav\u00e9m rohu. Zvl\u00e1\u0161t\u011b pro rychlou kontrolu od oka podle Intelhex n\u011bkde na pap\u00ed\u0159e nebo obrazovce.<\/p>\n\n\n\n

Zm\u011bnil jsem UI tak, aby funkce byly striktn\u011b v\u017edy nad fyzick\u00fdmi tla\u010d\u00edtky ve stejn\u00e9m smyslu pro cel\u00fd firmware.<\/p>\n\n\n\n

\u00davodn\u00ed hl\u00e1\u0161en\u00ed po zapnut\u00ed zobrazuje nav\u00edc odkaz na github autora.<\/p>\n\n\n\n

P\u0159ehled zkratek:<\/strong><\/p>\n\n\n\n

ED – Edit (editace programu \u010dipu)
PC – PC (p\u0159enos programu z nebo do PC po usb)
RD – Read chip (na\u010dte obsah PROM)
VF – Verify (porovn\u00e1 obsah d\u0159\u00edve na\u010dten\u00e9ho programu s \u010dipem v patici)
PG – Program (Programuj \u010dip)
LD – Load (Na\u010dte program z PC)
SV – Save (Po\u0161le program do PC)<\/p>\n\n\n\n

Pozn\u00e1mka o pr\u00e1ci s PC<\/strong><\/p>\n\n\n\n

Ob\u010das se n\u011bkdo pt\u00e1, jak dostat program z PC do program\u00e1toru. Ve Windows nap\u0159\u00edklad pomoc\u00ed TeraTerm, ale j\u00e1 pou\u017e\u00edv\u00e1m linux a postupuji takto:<\/p>\n\n\n\n

Na program\u00e1toru PC -> LD
Zobraz\u00ed se.. Waiting for data
V linux ode\u0161lu pomoc\u00ed nap\u0159: cat mh74188.hex > \/dev\/ttyUSB0<\/em><\/p>\n\n\n\n

Ke sta\u017een\u00ed st\u00e1le stejn\u011b na githubu projektu<\/a>.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u011bhem pou\u017e\u00edv\u00e1n\u00ed program\u00e1toru PROM-Prog vykrystalizovaly n\u011bkter\u00e9 vlastnosti, kter\u00e9 mi chyb\u011bly. Tak\u017ee jsem se pustil do \u00fapravy firmware a tyto drobnosti upravil a tak\u00e9 p\u0159idal n\u011bco nav\u00edc.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-219","post","type-post","status-publish","format-standard","hentry","category-vybavenie-dielne"],"_links":{"self":[{"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/posts\/219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/comments?post=219"}],"version-history":[{"count":3,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/posts\/219\/revisions"}],"predecessor-version":[{"id":224,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/posts\/219\/revisions\/224"}],"wp:attachment":[{"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/media?parent=219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/categories?post=219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.8bit-replicas.com\/index.php\/wp-json\/wp\/v2\/tags?post=219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}