{"id":1945,"date":"2019-06-27T04:30:00","date_gmt":"2019-06-27T04:30:00","guid":{"rendered":"http:\/\/fastbitlab.com\/?p=1945"},"modified":"2023-08-29T17:23:15","modified_gmt":"2023-08-29T11:53:15","slug":"exploring-system-ahb-apb-stm32-mcu","status":"publish","type":"post","link":"https:\/\/fastbitlab.com\/blog\/exploring-system-ahb-apb-stm32-mcu\/","title":{"rendered":"Exploring System, AHB, APB clocks of the STM32 MCU"},"content":{"rendered":"<div class=\"boldgrid-section\" style=\"background-size: cover; background-position: 50% 50%; background-color: #ffffff;\" data-image-url=\"https:\/\/source.unsplash.com\/Nv4QHkTVEaI\/1920x1080\">\n<div class=\"container-fluid\">\n<div class=\"row\" style=\"padding-top: 50px; background-color: rgba(238, 238, 238, 0.8);\">\n<div class=\"col-md-2 col-sm-12 col-xs-12 col-lg-2\"><\/div>\n<div class=\"col-md-8 col-xs-12 col-sm-12 col-lg-8\">\n<h2 class=\"\"><strong><span style=\"color: #000080;\">Exploring System, AHB, APB clocks of the STM32 MCU<\/span><\/strong><\/h2>\n<div class=\"row bg-editor-hr-wrap\">\n<div class=\"col-md-12 col-xs-12 col-sm-12 col-lg-12\">\n<hr>\n<\/div>\n<\/div>\n<p class=\"\"><span style=\"color: #000000;\">In this article, let&#8217;s explore about Exploring system, AHB, APB clocks of the STM32 MCU.<\/span><\/p>\n<p class=\"\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-169 size-medium\" src=\"http:\/\/fastbitlab.com\/wp-content\/uploads\/2016\/09\/Fiverr81016-300x169.jpg\" alt=\"Exploring System, AHB, APB clocks of the STM32 MCU\" width=\"300\" height=\"169\" srcset=\"https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-300x169.jpg 300w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-768x432.jpg 768w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-1024x576.jpg 1024w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-120x68.jpg 120w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-500x281.jpg 500w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-200x113.jpg 200w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-400x225.jpg 400w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-600x338.jpg 600w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-800x450.jpg 800w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016-1200x675.jpg 1200w, https:\/\/fastbitlab.com\/blog\/wp-content\/uploads\/2016\/09\/Fiverr81016.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p class=\"\"><span style=\"color: #000000;\">Remember that in ARM based Micro-controllers, there are 2 major bus interfaces.<\/span><\/p>\n<ol class=\"\">\n<li><span style=\"color: #000000;\"><strong>AHB<\/strong> (Advanced High-performance&nbsp;Bus)<\/span><\/li>\n<li><span style=\"color: #000000;\"><strong>APB<\/strong> &nbsp;( Advanced Peripheral Bus)&nbsp;<\/span><\/li>\n<\/ol>\n<p class=\"\"><span style=\"color: #000000;\">Watch the video which explains these bus interfaces and their clock logic.<\/span><\/p>\n<p class=\"responsive-video-wrap clr\"><iframe title=\"Mastering Microcontroller: Exploring System , AHB, APB clocks of the STM32 MCU\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/R-MIR-E5Fog?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<p class=\"\">&nbsp;<\/p>\n<p class=\"\"><span style=\"color: #000080;\"><b>FastBit Embedded Brain Academy Courses,<\/b><\/span><\/p>\n<p class=\"\"><span style=\"color: #000000;\">Click here:<\/span>&nbsp;<span style=\"color: #0000ff;\"><a style=\"color: #0000ff; text-decoration: underline;\" href=\"http:\/\/fastbitlab.com\/course1\" target=\"_blank\" rel=\"noopener\">https:\/\/fastbitlab.com\/course1<\/a><\/span><\/p>\n<\/div>\n<div class=\"col-md-2 col-sm-12 col-xs-12 col-lg-2\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Exploring System, AHB, APB clocks of the STM32 MCU In this article, let&#8217;s explore about Exploring system, AHB, APB clocks of the STM32 MCU. &nbsp; Remember that in ARM based Micro-controllers, there are 2 major bus interfaces. AHB (Advanced High-performance&nbsp;Bus) APB &nbsp;( Advanced Peripheral Bus)&nbsp; Watch the video which explains these bus interfaces and their [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[8],"tags":[],"class_list":["post-1945","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Exploring System, AHB, APB clocks of the STM32 MCU<\/title>\n<meta name=\"description\" content=\"Exploring System , AHB, APB clocks of the STM32 MCU. 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