{"id":7617,"date":"2015-10-26T10:25:23","date_gmt":"2015-10-26T09:25:23","guid":{"rendered":"https:\/\/blogs.mentor.com\/colinwalls\/?p=7617"},"modified":"2026-03-26T16:47:14","modified_gmt":"2026-03-26T20:47:14","slug":"another-embedded-software-article-endianness","status":"publish","type":"post","link":"https:\/\/blogs.sw.siemens.com\/embedded-software\/2015\/10\/26\/another-embedded-software-article-endianness\/","title":{"rendered":"Another embedded software article: Endianness"},"content":{"rendered":"<p>Yet another in my series of article at <a href=\"http:\/\/www.embedded.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">embedded.com<\/a> has been published:<\/p>\n<h2><a href=\"http:\/\/www.embedded.com\/design\/mcus-processors-and-socs\/4440613\/Endianness\" target=\"_blank\" rel=\"noopener noreferrer\">Endianness<\/a><\/h2>\n<p>For most programmers, details of computer architecture are of no interest or importance. Even embedded developers, who normally do concern themselves with details, when programming in a high level language, ignore matters like cache configuration. Factors like memory location and size do matter, when looking at the project as a whole, but even these parameters do not influence day to day coding.<\/p>\n<p><a href=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/51\/2015\/10\/77842C67-E4FB-4E42-9DA5-F0DC469679BB.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-7619\" src=\"https:\/\/blogs.sw.siemens.com\/wp-content\/uploads\/sites\/51\/2015\/10\/77842C67-E4FB-4E42-9DA5-F0DC469679BB-520x221.png\" alt=\"77842C67-E4FB-4E42-9DA5-F0DC469679BB\" width=\"520\" height=\"221\" \/><\/a><\/p>\n<p>The order in which bytes are stored in a word &#8211; the endianness &#8211; of the CPU in use can often also be ignored. However, once in a while, an appreciation of this matter is critical. The same consideration applies to transmission of data; what order are bytes sent down a serial line or over a network? This article reviews exactly what endianness means and how it affects embedded software.<\/p>\n<p><a href=\"http:\/\/www.linkedin.com\/in\/colinwalls\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6579\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/linkedin.png\" alt=\"\" width=\"40\" height=\"40\" \/><\/a><a href=\"https:\/\/twitter.com\/colin_walls\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6583\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/twitter.png\" alt=\"\" width=\"40\" height=\"40\" \/><\/a><a href=\"https:\/\/www.facebook.com\/colinwalls.author\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6591\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/facebook.png\" alt=\"\" width=\"40\" height=\"40\" \/><\/a><a href=\"https:\/\/plus.google.com\/116301748426290440139\/posts?hl=en%3Fhl=en\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6587\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/google.png\" alt=\"\" width=\"40\" height=\"40\" \/><\/a><a href=\"http:\/\/www.slideshare.net\/ColinWalls\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6595\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/slideshare.jpg\" alt=\"\" width=\"41\" height=\"41\" \/><\/a><a href=\"http:\/\/blogs.mentor.com\/colinwalls\/\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-6599\" src=\"http:\/\/s3-blogs.mentor.com\/colinwalls\/files\/2014\/01\/wordpress.jpg\" alt=\"\" width=\"44\" height=\"44\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yet another in my series of article at embedded.com has been published: Endianness For most programmers, details of computer architecture&#8230;<\/p>\n","protected":false},"author":71677,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spanish_translation":"","french_translation":"","german_translation":"","italian_translation":"","polish_translation":"","japanese_translation":"","chinese_translation":"","footnotes":""},"categories":[1],"tags":[300,519,520],"industry":[],"product":[],"coauthors":[],"class_list":["post-7617","post","type-post","status-publish","format-standard","hentry","category-news","tag-embedded-software","tag-endianity","tag-endianness"],"_links":{"self":[{"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/posts\/7617","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/users\/71677"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/comments?post=7617"}],"version-history":[{"count":1,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/posts\/7617\/revisions"}],"predecessor-version":[{"id":10409,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/posts\/7617\/revisions\/10409"}],"wp:attachment":[{"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/media?parent=7617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/categories?post=7617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/tags?post=7617"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/industry?post=7617"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/product?post=7617"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/blogs.sw.siemens.com\/embedded-software\/wp-json\/wp\/v2\/coauthors?post=7617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}