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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

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bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

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102 stars

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all \u003cpre\u003e\u003ccode\u003e blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks"); } } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); } })(); (function(){ try { var __m = "github.com"; var __re = new RegExp('^' + "github\\.com" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
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102 stars

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6 watching

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20 forks
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

102 stars

Watchers

6 watching

Forks

20 forks
Report repository

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length \u003e 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
Activity
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Stars

102 stars

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6 watching

Forks

20 forks
Report repository

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

102 stars

Watchers

6 watching

Forks

20 forks
Report repository

Releases

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Contributors

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

102 stars

Watchers

6 watching

Forks

20 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

About

STM32 USB device bootloader using DFU class interface

Topics

bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

102 stars

Watchers

6 watching

Forks

20 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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DFU Bootloader Build Status

This repository contains a generic USB device bootloader firmware for STM32 controllers.

Features

  • Fully-featured DFU class (with support to STMicroelectronics protocol Extension) USB device
  • Small footprint: consumes only 8kB flash with -Os (50% smaller than the STM32Cube solution)
  • The DFU interface is allocated to a fixed address, so it can be mounted on the application's USB device, allowing convenient entry to firmware update mode
  • Easy to port on virtually any STM32 device that is supported by STM32_XPD
  • C# CLI application available for performing the update: LibUsbDfu

How to build

Simply run make with the following arguments:

Symbol NameUse
SERIESThe series of the STM32 device
TARGET_HEADERString of the device-specific STM32_XPD header
APP_ADDRESSValue of the application's flash start address
APP_SIZEThe total available flash space for the application in bytes
TOTAL_ERASE_MSAverage erase time of the application flash area
VIDVendor ID of the USB device in hexadecimal format (no prefix)
PIDProduct ID of the USB device in hexadecimal format (no prefix)
DFUSESet to 1 if DFUSE protocol is desired
DESC_STRDFUSE specific flash layout descriptor string
BINPATHPath to build toolchain binaries (/usr/bin by default)

An example for an STM32F042K6 device with (VID,PID)={FFFF,FFFF}:

make TARGET_HEADER="\<stm32f042x6.h\>" SERIES=STM32F0 APP_ADDRESS=0x08002000 APP_SIZE=24568 TOTAL_ERASE_MS=480 VID=FFFF PID=FFFF

Further examples can be found in .travis.yml.

Built with GCC. (arm-atollic-eabi- is preferred over arm-none-eabi- as it provides better size optimization)

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STM32 USB device bootloader using DFU class interface

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bootloaderdfudfusefirmware-updaterstm32usbusb-dfu

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