{"id":2501,"date":"2026-01-28T20:41:14","date_gmt":"2026-01-28T20:41:14","guid":{"rendered":"https:\/\/hectronic.se\/?page_id=2501"},"modified":"2026-01-28T20:52:42","modified_gmt":"2026-01-28T20:52:42","slug":"bios-sparar-strom","status":"publish","type":"page","link":"https:\/\/hectronic.se\/sv\/solutions\/development\/bios-saves-power\/","title":{"rendered":"En anpassad BIOS sparar str\u00f6m i befintliga konstruktioner"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"2501\" class=\"elementor elementor-2501\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3d20810 e-flex e-con-boxed e-con e-parent\" data-id=\"3d20810\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-47e8867 e-con-full e-flex e-con e-child\" data-id=\"47e8867\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a36c552 elementor-mobile-align-left elementor-widget elementor-widget-button\" data-id=\"a36c552\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path d=\"M19.8001 4.41922C18.6278 2.83062 17.046 1.59028 15.2236 0.830647C13.4012 0.0710174 11.4067 -0.179372 9.45314 0.106217C7.55299 0.376367 5.75659 1.13898 4.24239 2.31829C2.7282 3.4976 1.54891 5.05257 0.821689 6.82872C0.0944667 8.60487 -0.155383 10.5404 0.0969613 12.443C0.349305 14.3456 1.09506 16.149 2.26014 17.6742C2.75621 18.3579 3.01599 19.1847 3.00014 20.0292V21.0002C3.00014 21.7959 3.31621 22.5589 3.87882 23.1215C4.44143 23.6841 5.20449 24.0002 6.00014 24.0002H13.0001C13.7958 24.0002 14.5589 23.6841 15.1215 23.1215C15.6841 22.5589 16.0001 21.7959 16.0001 21.0002H16.4941C17.706 20.9973 18.8757 20.5556 19.787 19.7568C20.6983 18.958 21.2895 17.8562 21.4511 16.6552L21.6701 15.0002H22.0001C22.2643 15.0058 22.5269 14.9579 22.7721 14.8594C23.0173 14.7608 23.24 14.6137 23.4268 14.4269C23.6136 14.24 23.7608 14.0173 23.8593 13.7721C23.9578 13.527 24.0057 13.2644 24.0001 13.0002C24.0001 11.5802 21.0681 5.98522 19.8001 4.41922ZM20.7931 13.0002C20.5507 13.0003 20.3165 13.0885 20.1342 13.2483C19.9519 13.4082 19.8339 13.6288 19.8021 13.8692L19.4681 16.3942C19.371 17.1146 19.0162 17.7755 18.4695 18.2546C17.9228 18.7336 17.2211 18.9985 16.4941 19.0002H15.0001C14.7349 19.0002 14.4806 19.1056 14.293 19.2931C14.1055 19.4806 14.0001 19.735 14.0001 20.0002V21.0002C14.0001 21.2654 13.8948 21.5198 13.7072 21.7073C13.5197 21.8949 13.2654 22.0002 13.0001 22.0002H6.00014C5.73492 22.0002 5.48057 21.8949 5.29303 21.7073C5.1055 21.5198 5.00014 21.2654 5.00014 21.0002V20.0292C5.01525 18.7454 4.61115 17.4916 3.84914 16.4582C2.897 15.211 2.28749 13.7365 2.08107 12.181C1.87466 10.6255 2.07851 9.04307 2.6724 7.59067C3.2663 6.13828 4.2296 4.86639 5.46675 3.90118C6.7039 2.93597 8.17191 2.31099 9.72514 2.08822C10.1493 2.02934 10.577 1.99994 11.0051 2.00022C12.4103 1.99832 13.7961 2.32764 15.0502 2.96146C16.3043 3.59527 17.3913 4.51574 18.2231 5.64822C19.8025 7.92061 21.0726 10.3929 22.0001 13.0002H20.7931ZM16.2001 8.01122C16.1347 7.89724 16.0475 7.79728 15.9434 7.71704C15.8393 7.63681 15.7205 7.57787 15.5936 7.5436C15.4668 7.50933 15.3344 7.5004 15.2041 7.51732C15.0737 7.53424 14.948 7.57668 14.8341 7.64222L13.8521 8.20622C13.3428 7.69 12.7026 7.32218 12.0001 7.14222V6.00022C12.0001 5.735 11.8948 5.48065 11.7072 5.29311C11.5197 5.10557 11.2654 5.00022 11.0001 5.00022C10.7349 5.00022 10.4806 5.10557 10.293 5.29311C10.1055 5.48065 10.0001 5.735 10.0001 6.00022V7.14222C9.29659 7.32168 8.65527 7.68953 8.14514 8.20622L7.16314 7.64222C7.04929 7.57656 6.92361 7.53396 6.79329 7.51687C6.66298 7.49978 6.53057 7.50852 6.40363 7.5426C6.2767 7.57668 6.15771 7.63543 6.05348 7.71549C5.94925 7.79555 5.8618 7.89536 5.79614 8.00922C5.73048 8.12307 5.68789 8.24875 5.6708 8.37906C5.6537 8.50938 5.66245 8.64179 5.69653 8.76873C5.73061 8.89566 5.78935 9.01465 5.86941 9.11888C5.94948 9.22311 6.04929 9.31056 6.16314 9.37622L7.15614 9.94722C7.05672 10.2895 7.00424 10.6438 7.00014 11.0002C7.00522 11.3568 7.05871 11.711 7.15914 12.0532L6.16614 12.6242C5.9362 12.7568 5.76835 12.9753 5.69953 13.2317C5.6307 13.4881 5.66653 13.7613 5.79914 13.9912C5.93175 14.2212 6.15027 14.389 6.40663 14.4578C6.663 14.5267 6.9362 14.4908 7.16614 14.3582L8.14814 13.7942C8.65744 14.3104 9.29766 14.6783 10.0001 14.8582V16.0002C10.0001 16.2654 10.1055 16.5198 10.293 16.7073C10.4806 16.8949 10.7349 17.0002 11.0001 17.0002C11.2654 17.0002 11.5197 16.8949 11.7072 16.7073C11.8948 16.5198 12.0001 16.2654 12.0001 16.0002V14.8582C12.7037 14.6788 13.345 14.3109 13.8551 13.7942L14.8371 14.3582C14.951 14.4239 15.0767 14.4665 15.207 14.4836C15.3373 14.5007 15.4697 14.4919 15.5966 14.4578C15.7236 14.4238 15.8426 14.365 15.9468 14.2849C16.051 14.2049 16.1385 14.1051 16.2041 13.9912C16.2698 13.8774 16.3124 13.7517 16.3295 13.6214C16.3466 13.4911 16.3378 13.3586 16.3038 13.2317C16.2697 13.1048 16.2109 12.9858 16.1309 12.8816C16.0508 12.7773 15.951 12.6899 15.8371 12.6242L14.8441 12.0532C14.9436 11.7109 14.996 11.3567 15.0001 11.0002C14.9951 10.6436 14.9416 10.2894 14.8411 9.94722L15.8341 9.37622C16.0635 9.24361 16.2309 9.02537 16.2996 8.76944C16.3682 8.51351 16.3324 8.24081 16.2001 8.01122ZM11.0001 13.0002C10.6046 13.0002 10.2179 12.8829 9.889 12.6632C9.5601 12.4434 9.30376 12.131 9.15238 11.7656C9.00101 11.4001 8.9614 10.998 9.03857 10.61C9.11574 10.2221 9.30622 9.86571 9.58593 9.586C9.86563 9.3063 10.222 9.11582 10.61 9.03865C10.9979 8.96148 11.4001 9.00108 11.7655 9.15246C12.131 9.30383 12.4433 9.56018 12.6631 9.88908C12.8828 10.218 13.0001 10.6047 13.0001 11.0002C13.0001 11.5307 12.7894 12.0394 12.4144 12.4144C12.0393 12.7895 11.5306 13.0002 11.0001 13.0002Z\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Utveckling<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4858dc1 elementor-widget elementor-widget-heading\" data-id=\"4858dc1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">En anpassad BIOS sparar str\u00f6m i befintliga konstruktioner<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-509cd58 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"509cd58\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e8f0a2 elementor-widget elementor-widget-text-editor\" data-id=\"2e8f0a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"hectronicBlackH3\">L\u00e5g energif\u00f6rbrukning och h\u00f6gpresterande ber\u00e4kningskapacitet \u00e4r motstridiga parametrar i en datorkortsdesign. Processorer, som Intel Atom, har introducerat nya procestekniker och smarta processorfunktioner f\u00f6r att uppn\u00e5 mer med mindre str\u00f6m. V\u00e4xlingen mellan tunga ber\u00e4kningsmoment och inaktiva tillst\u00e5nd sker omedelbart f\u00f6r att minimera energif\u00f6rbrukningen.<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c355fb3 e-con-full e-flex e-con e-child\" data-id=\"c355fb3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e2a1aa5 e-flex e-con-boxed e-con e-parent\" data-id=\"e2a1aa5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b317b8 elementor-widget elementor-widget-text-editor\" data-id=\"7b317b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"hectronicBlackMedium\">Liknande funktionalitet kan uppn\u00e5s p\u00e5 en plattform baserad p\u00e5 processorfamiljerna Celeron M\/Pentium M och inb\u00e4ddade chipsets 855GME med hj\u00e4lp av en anpassad inb\u00e4ddad BIOS och h\u00e5rdvaruinitierade System Management Interrupts, SMI. Kraftfull prestanda i kombination med ytterligare l\u00e5genergiegenskaper uppn\u00e5s i en utstr\u00e4ckning som annars bara samtida ultra mobila processorplattformar till\u00e5ter.<\/span><\/p><p>Det f\u00f6ljande fiktiva exemplet baseras p\u00e5 erfarenheter fr\u00e5n ett faktiskt utvecklingsprojekt som anv\u00e4nder Hectronic H6036, ett PC\/104 datorkort med en Intel Celeron M, ULV-processor som k\u00f6rs med 1 GHz klockhastighet och det inbyggda chipsetet 855GME. Vi antar att data kommer att samlas in och bearbetas i f\u00e4lt. Applikationen beh\u00f6ver batteridrift. Applikationen v\u00e4xlar mellan tung databearbetning och perioder av v\u00e4ntan p\u00e5 ytterligare data att samla in och bearbeta.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-487040d elementor-widget elementor-widget-spacer\" data-id=\"487040d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8fb32c elementor-widget elementor-widget-heading\" data-id=\"f8fb32c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Kompletterande datorkort\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8250d4a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"8250d4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c8cc978 elementor-widget elementor-widget-spacer\" data-id=\"c8cc978\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffc1976 elementor-widget elementor-widget-text-editor\" data-id=\"ffc1976\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"hectronicBlackMedium\">En dubbeldatorbricksl\u00f6sning f\u00f6rb\u00e4ttrar relationen mellan energif\u00f6rbrukning och processorkapacitet. En l\u00e5gpris-mikrokontroller k\u00f6rs kontinuerligt. Celeron M-processorn bearbetar data, vanligtvis p\u00e5 mindre \u00e4n en sekund, och g\u00e5r sedan in i Suspend to RAM, STR. I detta tillst\u00e5nd f\u00f6rbrukar endast RAM-minnet och utvalda delar av chipsetet str\u00f6m.<\/span><\/p><p>En m\u00f6jlighet vore att l\u00e5ta Linux OS styra intr\u00e4de och uttr\u00e4de ur STR. Varje intr\u00e4de i STR och uttr\u00e4de ur STR skulle d\u00e5 vara under en l\u00e5ng tidsperiod j\u00e4mf\u00f6rt med den tid som anv\u00e4nds f\u00f6r databehandling, vilket resulterar i \u00f6kad energif\u00f6rbrukning. Ett anpassat inbyggt BIOS och SMI, initierat av h\u00e5rdvara, skulle utf\u00f6ra samma \u00e5tg\u00e4rder men betydligt snabbare, vilket resulterar i en v\u00e4sentligt minskad energif\u00f6rbrukning och \u00f6kad batteritid.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-441175e elementor-widget elementor-widget-spacer\" data-id=\"441175e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a390594 elementor-widget elementor-widget-heading\" data-id=\"a390594\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Konfigurera chipset\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bd3ef7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1bd3ef7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b12b000 elementor-widget elementor-widget-spacer\" data-id=\"b12b000\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd1744a elementor-widget elementor-widget-text-editor\" data-id=\"fd1744a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"hectronicBlackMedium\">Data fr\u00e5n sensorerna lagras i mikrokontrollerns FIFO. Samtidigt \u00e4r H6036-datorplattan med Linux i mikros\u00f6mn. En General Purpose I\/O, GPIO-port, dras h\u00f6g av mikrokontrollern n\u00e4r FIFO \u00e4r full f\u00f6r att v\u00e4cka H6036-plattan fr\u00e5n mikros\u00f6mn.<\/span><\/p><p>Inb\u00e4ddade\u00a0<a href=\"https:\/\/hectronic.se\/sv\/losningar\/utveckling\/teknologier\/bios-bootloader\/\">BIOS<\/a>\u00a0anpassningar gjorda av\u00a0<a href=\"https:\/\/hectronic.se\/sv\/foretag\/\">Hectronic<\/a>\u00a0inkludera funktioner f\u00f6r att st\u00e4lla in 855GME-chipsetet f\u00f6r att utl\u00f6sa en v\u00e4ckningsh\u00e4ndelse fr\u00e5n en positiv flank p\u00e5 GPIO-porten. H6036-kortet l\u00e4mnar STR vid v\u00e4ckningsh\u00e4ndelsen. Proceduren liknar en \u00e5terst\u00e4llning men en stor del av koden som vanligtvis k\u00f6rs av BIOS vid en \u00e5terst\u00e4llning \u00e4r undantagen och g\u00f6r STR-utg\u00e5ngen betydligt snabbare.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c60371 elementor-widget elementor-widget-image\" data-id=\"1c60371\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"575\" height=\"472\" src=\"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power.jpg\" class=\"attachment-large size-large wp-image-2495\" alt=\"Programvaruutvecklingstj\u00e4nster - BIOS sparar str\u00f6m\" srcset=\"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power.jpg 575w, https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power-300x246.jpg 300w\" sizes=\"(max-width: 575px) 100vw, 575px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc8f5ef elementor-widget elementor-widget-text-editor\" data-id=\"bc8f5ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><em>Bilden visar h\u00e4ndelsef\u00f6rloppet n\u00e4r H6036 l\u00e4mnar STR via GPIO-porten (gr\u00f6na grafen) som dras h\u00f6g. F\u00f6rst sl\u00e5s h\u00e5rdvarusp\u00e4nningen p\u00e5 och stabiliseras inom 260 ms. Str\u00f6mf\u00f6rbrukningen \u00f6kar (r\u00f6da grafen) till en h\u00f6gre niv\u00e5 n\u00e4r den inb\u00e4ddade BIOS:en k\u00f6rs utan cacheminne. Processorn g\u00e5r l\u00e5ngsamt i cirka 200 ms innan cacheminnet sl\u00e5s p\u00e5. Maximal str\u00f6mf\u00f6rbrukning uppn\u00e5s n\u00e4r chipset har konfigurerat minnet och den inb\u00e4ddade BIOS:en k\u00f6rs i full hastighet. Uppstartssekvensen (markerad med pilar), fr\u00e5n det att GPIO-porten dras h\u00f6g till ett fullt fungerande system, med en str\u00f6mf\u00f6rbrukning p\u00e5 7,0 W, \u00e4r 680 ms l\u00e5ng.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b765eba elementor-widget elementor-widget-text-editor\" data-id=\"b765eba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>N\u00e4r Celeron M-processorn p\u00e5 H6036-kortet har bearbetat all data fr\u00e5n mikrokontrollerns FIFO g\u00e5r Linux in i mikros\u00f6mn och v\u00e4ntar p\u00e5 STR-intr\u00e4de f\u00f6r att spara str\u00f6m. Mikrokontrollern tar emot information via LPC-bussen att databehandlingen \u00e4r klar. Detta \u00e4r signalen f\u00f6r att initiera STR-intr\u00e4de p\u00e5 H6036-kortet och mikrokontrollern drar GPIO-porten l\u00e5g.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20dbc1d elementor-widget elementor-widget-spacer\" data-id=\"20dbc1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7bea40e elementor-widget elementor-widget-heading\" data-id=\"7bea40e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">G\u00e5r in i vilol\u00e4ge till RAM\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d4e3fc elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6d4e3fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a2fe345 elementor-widget elementor-widget-spacer\" data-id=\"a2fe345\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed7004e elementor-widget elementor-widget-text-editor\" data-id=\"ed7004e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"hectronicBlackMedium\">En negativ flank p\u00e5 GPIO-porten utl\u00f6ser en SMI i chipsetet. I en inbyggd PC genereras m\u00e5nga SMI under normal drift. Den inbyggda BIOS-disponenten best\u00e4mmer vilken kod som ska k\u00f6ras vid varje SMI. Den inbyggda BIOS-disponenten pekar ut koden f\u00f6r att g\u00e5 in i STR i detta fall.<\/span><\/p><p>Data i h\u00e5rdvaruregistren sparas i RAM. Slutligen uppn\u00e5s STR-posten n\u00e4r BIOS skriver till ett chipsetregister. Celeron M-processorn stannar och Linux f\u00f6rs fr\u00e5n mikros\u00f6mn till ett totalt exekveringsstopp.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4d71da elementor-widget elementor-widget-image\" data-id=\"f4d71da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"511\" height=\"434\" src=\"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/an-adapted-bios-saves-power-in-existing-designs-setting-up-the-chipset.jpg\" class=\"attachment-large size-large wp-image-2503\" alt=\"En anpassad BIOS sparar str\u00f6m i befintliga konstruktioner - Konfigurera chipsetet\" srcset=\"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/an-adapted-bios-saves-power-in-existing-designs-setting-up-the-chipset.jpg 511w, https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/an-adapted-bios-saves-power-in-existing-designs-setting-up-the-chipset-300x255.jpg 300w\" sizes=\"(max-width: 511px) 100vw, 511px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab76bea elementor-widget elementor-widget-text-editor\" data-id=\"ab76bea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><em>Bilden visar h\u00e4ndelsef\u00f6rloppet n\u00e4r H6036 g\u00e5r in i STR via GPIO-porten (gr\u00f6nt diagram) genom att dras l\u00e5g. F\u00f6rst \u00f6kar str\u00f6mf\u00f6rbrukningen (r\u00f6tt diagram) n\u00e4r det inbyggda BIOS k\u00f6r kod som hanterar SMI. Stoppproceduren (markerad med pilar) g\u00f6r att systemet g\u00e5r in i STR p\u00e5 22 ms och minskar str\u00f6mf\u00f6rbrukningen fr\u00e5n 7,0 W till 0,7 W. 0,7 W \u00e4r den effekt som f\u00f6rbrukas i RAM och utvalda delar i chipsetet.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d5169f elementor-widget elementor-widget-text-editor\" data-id=\"4d5169f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Att g\u00e5 in i STR inneb\u00e4r en \u00f6verg\u00e5ng till standbystr\u00f6m p\u00e5 H6036-kortet. Sp\u00e4nningsniv\u00e5erna f\u00f6rblir desamma men endast ett minimiantal komponenter drivs f\u00f6r att undvika l\u00e4ckstr\u00f6mmar. Endast RAM och delar av chipset som beh\u00f6vs f\u00f6r kortets uppstartsprocess drivs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbf9df2 elementor-widget elementor-widget-spacer\" data-id=\"bbf9df2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-af322a3 elementor-widget elementor-widget-heading\" data-id=\"af322a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Slutsatser\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75bd7ef elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"75bd7ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a880e6 elementor-widget elementor-widget-spacer\" data-id=\"9a880e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcb1b43 elementor-widget elementor-widget-text-editor\" data-id=\"bcb1b43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span class=\"hectronicBlackMedium\">I exempelapplikationen, f\u00f6r att samla in och bearbeta data i f\u00e4lt, kan det finnas l\u00e5nga tidsperioder innan sensorerna uppt\u00e4cker signaler. Att uppt\u00e4cka och samla in data kr\u00e4ver l\u00e5g ber\u00e4kningskraft men ut\u00f6kad uth\u00e5llighet. Att anv\u00e4nda en mikrokontroller f\u00f6r dessa uppgifter f\u00f6rl\u00e4nger batteritiden.<\/span><\/p><p>N\u00e4r tillr\u00e4ckligt med data har samlats in f\u00f6r att motivera bearbetning kr\u00e4vs kraftfull processorkapacitet. Celeron M p\u00e5 1 GHz \u00e4r tillr\u00e4ckligt kraftfull utan att on\u00f6digt \u00f6ka str\u00f6mf\u00f6rbrukningen. Den anpassade BIOS styr STR in- och utg\u00e5ng.<\/p><p>Alternativet att anv\u00e4nda Linux f\u00f6r att hantera STR-ing\u00e5ng och -utg\u00e5ng skulle leda till procedurer p\u00e5 ett par sekunder vardera. I en applikation d\u00e4r den faktiska databehandlingen tar 1 sekund skulle proceduren som helhet ta cirka 5 sekunder. STR-ing\u00e5ng och -utg\u00e5ng skulle ta l\u00e4ngre tid \u00e4n sj\u00e4lva bearbetningen. Det \u00e4r sl\u00f6seri med str\u00f6m och batteritid.<\/p><p>STR-in- och utg\u00e5ngsproceduren som beskrivs i denna artikel \u00e4r totalt cirka 0,7 sekunder. F\u00f6r hela proceduren, inklusive STR-utg\u00e5ng, 1 sekunds databehandling och STR-ing\u00e5ng, reduceras tiden till 1,5 sekunder. En energif\u00f6rbrukning p\u00e5 7 Watt under 1,5 sekunder ist\u00e4llet f\u00f6r 5 sekunder kan vara skillnaden som g\u00f6r det m\u00f6jligt att utveckla en batteridriven applikation f\u00f6r f\u00e4ltbruk med tillr\u00e4cklig processorkraft.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Development An adapted BIOS saves power in existing designs Low power consumption and high performance computing capabilities are conflicting parameters in a computer board design. Processors, as Intel Atom, have introduced new process technologies and clever processor functions to achieve more with less power. Switching between heavy processing and inactive states is immediate to minimize [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":620,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2501","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>An adapted BIOS saves power in existing designs | Embedded Computer Systems - Nordic designer and manufacturer | Hectronic<\/title>\n<meta name=\"description\" content=\"Did you know that an adapted BIOS saves power in existing designs? Click here to read more about adapted BIOS or contact us for more information.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hectronic.se\/sv\/losningar\/utveckling\/bios-sparar-strom\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An adapted BIOS saves power in existing designs | Embedded Computer Systems - Nordic designer and manufacturer | Hectronic\" \/>\n<meta property=\"og:description\" content=\"Did you know that an adapted BIOS saves power in existing designs? Click here to read more about adapted BIOS or contact us for more information.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hectronic.se\/sv\/losningar\/utveckling\/bios-sparar-strom\/\" \/>\n<meta property=\"og:site_name\" content=\"Embedded Computer Systems - Nordic designer and manufacturer | Hectronic\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Hectronic.1\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-28T20:52:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/621-a6d456e6.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@HectronicNews\" \/>\n<meta name=\"twitter:label1\" content=\"Ber\u00e4knad l\u00e4stid\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minuter\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"En anpassad BIOS sparar str\u00f6m i befintliga konstruktioner | Inbyggda datorsystem - Nordisk designer och tillverkare | Hectronic","description":"Visste du att ett anpassat BIOS sparar str\u00f6m i befintliga konstruktioner? Klicka h\u00e4r f\u00f6r att l\u00e4sa mer om anpassat BIOS eller kontakta oss f\u00f6r mer information.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/hectronic.se\/sv\/losningar\/utveckling\/bios-sparar-strom\/","og_locale":"sv_SE","og_type":"article","og_title":"An adapted BIOS saves power in existing designs | Embedded Computer Systems - Nordic designer and manufacturer | Hectronic","og_description":"Did you know that an adapted BIOS saves power in existing designs? Click here to read more about adapted BIOS or contact us for more information.","og_url":"https:\/\/hectronic.se\/sv\/losningar\/utveckling\/bios-sparar-strom\/","og_site_name":"Embedded Computer Systems - Nordic designer and manufacturer | Hectronic","article_publisher":"https:\/\/www.facebook.com\/Hectronic.1\/","article_modified_time":"2026-01-28T20:52:42+00:00","og_image":[{"url":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/621-a6d456e6.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_site":"@HectronicNews","twitter_misc":{"Ber\u00e4knad l\u00e4stid":"6 minuter"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/","url":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/","name":"En anpassad BIOS sparar str\u00f6m i befintliga konstruktioner | Inbyggda datorsystem - Nordisk designer och tillverkare | Hectronic","isPartOf":{"@id":"https:\/\/hectronic.se\/#website"},"primaryImageOfPage":{"@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/#primaryimage"},"image":{"@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/#primaryimage"},"thumbnailUrl":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power.jpg","datePublished":"2026-01-28T20:41:14+00:00","dateModified":"2026-01-28T20:52:42+00:00","description":"Visste du att ett anpassat BIOS sparar str\u00f6m i befintliga konstruktioner? Klicka h\u00e4r f\u00f6r att l\u00e4sa mer om anpassat BIOS eller kontakta oss f\u00f6r mer information.","breadcrumb":{"@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/#breadcrumb"},"inLanguage":"sv-SE","potentialAction":[{"@type":"ReadAction","target":["https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/"]}]},{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/#primaryimage","url":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power.jpg","contentUrl":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/01\/software-development-services-bios-saves-power.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/hectronic.se\/solutions\/development\/bios-saves-power\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/hectronic.se\/"},{"@type":"ListItem","position":2,"name":"Solutions","item":"https:\/\/hectronic.se\/solutions\/"},{"@type":"ListItem","position":3,"name":"Development","item":"https:\/\/hectronic.se\/solutions\/development\/"},{"@type":"ListItem","position":4,"name":"An adapted BIOS saves power in existing designs"}]},{"@type":"WebSite","@id":"https:\/\/hectronic.se\/#website","url":"https:\/\/hectronic.se\/","name":"Inbyggda datorsystem - nordisk designer och tillverkare | Hectronic","description":"","publisher":{"@id":"https:\/\/hectronic.se\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/hectronic.se\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"sv-SE"},{"@type":"Organization","@id":"https:\/\/hectronic.se\/#organization","name":"Inbyggda datorsystem - nordisk designer och tillverkare | Hectronic","url":"https:\/\/hectronic.se\/","logo":{"@type":"ImageObject","inLanguage":"sv-SE","@id":"https:\/\/hectronic.se\/#\/schema\/logo\/image\/","url":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/03\/hectronic-logo-1.svg","contentUrl":"https:\/\/hectronic.se\/wp-content\/uploads\/2026\/03\/hectronic-logo-1.svg","width":207,"height":38,"caption":"Embedded Computer Systems - Nordic designer and manufacturer | Hectronic"},"image":{"@id":"https:\/\/hectronic.se\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Hectronic.1\/","https:\/\/x.com\/HectronicNews"]}]}},"_links":{"self":[{"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/pages\/2501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/comments?post=2501"}],"version-history":[{"count":7,"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/pages\/2501\/revisions"}],"predecessor-version":[{"id":2509,"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/pages\/2501\/revisions\/2509"}],"up":[{"embeddable":true,"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/pages\/620"}],"wp:attachment":[{"href":"https:\/\/hectronic.se\/sv\/wp-json\/wp\/v2\/media?parent=2501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}