{"id":51244,"date":"2026-02-23T11:35:39","date_gmt":"2026-02-23T10:35:39","guid":{"rendered":"https:\/\/www.akehedman.se\/wordpress\/?p=51244"},"modified":"2026-02-23T11:35:39","modified_gmt":"2026-02-23T10:35:39","slug":"hundra-spann","status":"publish","type":"post","link":"https:\/\/www.akehedman.se\/wordpress\/?p=51244","title":{"rendered":"Hundra sp\u00e4nn"},"content":{"rendered":"\n
\"silver
Photo by Tara Winstead on Pexels.com<\/a><\/figcaption><\/figure>\n\n\n\n

\u00c4r ig\u00e5ng med UDP och multicast igen. Men nu p\u00e5 den nya enheten. \u00c5terst\u00e5r bara att plocka dit websockets efter det sen skall den v\u00e4l vara “klar<\/em>“. N\u00e5ja. Man skall inte ropa “klar<\/em>” innan man har semester (och har st\u00e4ngt av mobilen). Gammalt djungelordspr\u00e5k det.<\/p>\n\n\n\n

Lite trixit \u00e4r det s\u00e5klart s\u00e5 fort man kommer riktigt n\u00e4ra h\u00e5rdvaran. Men allt \u00e4r s\u00e5 enormt mycket enklare nu f\u00f6r tiden \u00e4n det var f\u00f6rr. Det f\u00f6rsta modemet jag kodade kodades i assembler. D\u00e5 hade man inte ens s\u00e5 mycket ram s\u00e5 att man kunde dela upp det snyggt och prydligt utan man fick ist\u00e4llet skapa finit state maskiner och anv\u00e4nda samma minne under olika delar av uppkopplingen. Allt var kr\u00e5ngligare. Att br\u00e4nna EEPROM tog evigheter. Ja och de skulle UV-rensas ocks\u00e5. Ljuvliga tider nu n\u00e4r processorn sj\u00e4lv har JTAG inbyggt och man bara laddar upp kod och kan monitorera direkt ocks\u00e5. Lite som att \u00e4ta gr\u00e4ddt\u00e5rta \u00e4r det varje dag att arbeta numera. Ja om man ens kan kalla det “arbete<\/em>“.<\/p>\n\n\n\n

Men s\u00e5 j\u00e4vlas det idag ocks\u00e5 s\u00e5klart. Tankefelen \u00e4r detsamma. Tanker\u00e4tten ocks\u00e5. Men dagarna g\u00e5r \u00e5t till att hitta buggar numera precis som d\u00e5. Ja och jag antar jag inte \u00e4r ensam om den sysslan i en v\u00e4rld full av programmerare.<\/p>\n\n\n\n

Min Spotify klient, som nog \u00e4r den viktigaste programvaran som k\u00f6rs h\u00e4r – hur skall man \u00f6verleva utan den – fungerar inte n\u00e4r jag b\u00f6rjade jobba ig\u00e5r. Antar att det skett en uppdatering av den under helgen f\u00f6r helt pl\u00f6tsligt fungerar inte h\u00e5rdvaruaccelerationen. Problemet d\u00e5 \u00e4r att hela datorn l\u00e5ses. Har upplevt det d\u00e4r med Visual Studio Code ocks\u00e5. Just l\u00e5sningen \u00e4r man ju van fr\u00e5n Windowsv\u00e4rlden. Men inte i Linux. Googlegrejer som st\u00e4ller till det d\u00e4r. “V\u00e4rldens b\u00e4sta programmerare<\/em>” har varit framme igen. Skulle vilja kn\u00e4ppa dem p\u00e5 n\u00e4san jag. H\u00e5rt. J\u00c4VLIGT h\u00e5rt! B\u00e4st i v\u00e4rlden kan de f\u00e5 forts\u00e4tta vara. Men h\u00e5ll er borta fr\u00e5n min dator.<\/p>\n\n\n\n

M\u00f6jligen kan det vara dags f\u00f6r ett nytt grafikkort. Mitt \u00e4r k\u00f6pt p\u00e5 Ebay f\u00f6r en hundring… Kan ha bidragit.<\/p>\n\n\n\n

Helgen d\u00e5? Jod\u00e5. Bok, soffa, vila. Handlade semlor p\u00e5 Wilmars ocks\u00e5. H\u00e5ller m\u00e5ttet. Ja n\u00e5gon serie, en whisky och en film blev det ocks\u00e5. Whisky och semlor borde jag v\u00e4l h\u00e5lla mig ifr\u00e5n. Men kanske skulle v\u00e4rlden gynnas av att jag p\u00e5skyndar det egna fr\u00e5nf\u00e4llet \u00e4nd\u00e5.<\/p>\n\n\n\n

Men utvilad. Ja kanske. L\u00f6rdag nere i k\u00e4llaren. Skruvade loss en gammal elpanna och plockade ordning lite i verkstaden. Skall ge mig p\u00e5 varmvattenberedaren n\u00e4sta helg om tid hittas och sen \u00e4r det Hulkens (pannan) tur. Ja lite r\u00f6r av gr\u00f6vre dimensioner ocks\u00e5. Hulken v\u00e4ger v\u00e4l sis\u00e5d\u00e4r femhundra kilo. Gjutj\u00e4rn rakt igenom. Blir nog ett ton j\u00e4rnskrot till idrottsf\u00f6reningen i slut\u00e4ndan. M\u00e4rkligt lustfyllt att h\u00e5lla p\u00e5 med. Man \u00e4r underlig.<\/p>\n\n\n\n

Veckan inneh\u00e5ller kodande och ett tandl\u00e4karbes\u00f6k. Icke mer vad jag vet idag. Men om framtiden vet man ju v\u00e4ldigt lite som bekant. Saker h\u00e4nder och nog har man v\u00e4l blivit \u00f6verraskad mer \u00e4n en g\u00e5ng av tingens ordning, eller ja brist p\u00e5 ordning \u00e4r v\u00e4l n\u00e4rmare sanningen. Ordningen \u00e4r en illusion, ett fruset \u00f6gonblick i tidens g\u00e5ng. Precis som de liv vi lever och som vi kallar en livstid. Avklarade, har de knappt funnits. Ingen ide att h\u00f6ga n\u00e4san allt f\u00f6r h\u00f6gt \u00f6ver det man presterat allts\u00e5.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00c4r ig\u00e5ng med UDP och multicast igen. Men nu p\u00e5 den nya enheten. \u00c5terst\u00e5r bara att plocka dit websockets efter det sen skall den v\u00e4l vara “klar“. N\u00e5ja. Man skall inte ropa “klar” innan man har semester (och har st\u00e4ngt av mobilen). Gammalt djungelordspr\u00e5k det. Lite trixit \u00e4r det s\u00e5klart s\u00e5 fort man kommer riktigt […]<\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","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":[24],"tags":[],"class_list":["post-51244","post","type-post","status-publish","format-standard","hentry","category-betraktelser"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":49603,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=49603","url_meta":{"origin":51244,"position":0},"title":"Hur m\u00e5nga fisar","author":"\u00c5ke Hedman","date":"2025-05-08","format":false,"excerpt":"Photo by Alex P on Pexels.com Sitter och dricker kaffe och t\u00e4nker p\u00e5 d\u00f6den... nja... n\u00e5ja... nej... s\u00e5 illa \u00e4r det nu inte. Men dricker kaffe. Det st\u00e4mmer i alla fall. Befinner mig i \"g\u00f6ra klar\" fasen av mitt multicastdelprojekt. Den tr\u00e5kiga delen. Man vet att det fungerar. Man har\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"photo of grass field","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2025\/05\/pexels-photo-1227513.jpeg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1724,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=1724","url_meta":{"origin":51244,"position":1},"title":"Det kreativa helvetet!","author":"\u00c5ke Hedman","date":"2012-10-15","format":false,"excerpt":"Jag tycker jag \u00e4r ganska bra p\u00e5 att bli klar med saker. \u00c4nd\u00e5 har jag m\u00e4ngder av of\u00e4rdiga projekt. Ett helt hus bl.a. som som st\u00e4ndigt beh\u00f6ver renoveras och dessutom har ett antal p\u00e5g\u00e5ende inte f\u00e4rdigst\u00e4llda projekt. Men med det, liksom mitt VSCP projektet \u00e4r det s\u00e5 att vissa saker\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":7675,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=7675","url_meta":{"origin":51244,"position":2},"title":"Jaha","author":"\u00c5ke Hedman","date":"2013-06-20","format":false,"excerpt":"St\u00e4dningen klar. Bara att handla lite mat nu s\u00e5 f\u00e5r det bli midsommar b\u00e4st det vill sen f\u00f6r min del. Grilla \u00e4r planen. Vi f\u00e5r v\u00e4l se vad v\u00e4dret s\u00e4ger om den saken. F\u00e5r v\u00e4l st\u00e4lla grillen i garaget i v\u00e4rsta fall. Snapsl\u00f6st blir det nog men sannolikt lite gott\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"midsommar-tisch","src":"https:\/\/i0.wp.com\/www.eurosource.se\/akhe\/wordpress\/wp-content\/uploads\/2013\/06\/midsommar-tisch-730x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.eurosource.se\/akhe\/wordpress\/wp-content\/uploads\/2013\/06\/midsommar-tisch-730x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.eurosource.se\/akhe\/wordpress\/wp-content\/uploads\/2013\/06\/midsommar-tisch-730x1024.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":25998,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=25998","url_meta":{"origin":51244,"position":3},"title":"“N\u00e4stan klar”","author":"\u00c5ke Hedman","date":"2017-11-17","format":false,"excerpt":"Jo man sitter h\u00e4r. Tycker man \u00e4r n\u00e4ra. N\u00e4ra ett avslut. Men det \u00e4r fasiken s\u00e5 mycket det \u00e4r kvar att g\u00f6ra n\u00e4r man \"n\u00e4stan \u00e4r klar\". Ja det d\u00e4r borde man ju varit medveten om redan tidigare. S\u00e5klart. Man har varit h\u00e4r f\u00f6rut. Och \"KLAR\" f\u00f6rresten. En del inbillar\u2026","rel":"","context":"In "Betraktelser & Ber\u00e4ttelse"","block_context":{"text":"Betraktelser & Ber\u00e4ttelse","link":"https:\/\/www.akehedman.se\/wordpress\/?cat=24"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/11\/IMG_20171117_120901634-768x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/11\/IMG_20171117_120901634-768x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.akehedman.se\/wordpress\/wp-content\/uploads\/2017\/11\/IMG_20171117_120901634-768x1024.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":23646,"url":"https:\/\/www.akehedman.se\/wordpress\/?p=23646","url_meta":{"origin":51244,"position":4},"title":"Fr\u00e5n “klar” och fram\u00e5t.","author":"\u00c5ke Hedman","date":"2017-03-10","format":false,"excerpt":"Det tar en vecka att f\u00e5 ihop den d\u00e4r koden s\u00e5 att den fungerar. 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