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stm32f1xx [2017/07/24 10:55] – [maple mini] typo kingkevinstm32f1xx [2019/09/19 10:02] – [blue pill] RTC issue kingkevin
Line 114: Line 114:
   * no user button   * no user button
   * board extends over headers   * board extends over headers
 +  * the RTC is not stable when the on-board LED is toggled
  
 Here a rough {{:stm32f1xx:bluepill-6-stm32f103c8t6原理图.pdf|schematic}}, but there a many derivatives. Here a rough {{:stm32f1xx:bluepill-6-stm32f103c8t6原理图.pdf|schematic}}, but there a many derivatives.
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 ==== USB DFU ==== ==== USB DFU ====
  
-There are several USB DFU bootloader. +There are several USB DFU bootloaders available (one from [[http://www.st.com/resource/en/application_note/cd00264379.pdf|STMicroelectronics]] themselves, or the open source [[https://github.com/rogerclarkmelbourne/STM32duino-bootloader|STM32duino-bootloader]]), but I developed [[https://git.cuvoodoo.info/stm32f1/about/|my own]] because I wanted to know how DFU works. 
-I am using [[https://github.com/rogerclarkmelbourne/STM32duino-bootloader|STM32duino-bootloader]] ([[https://github.com/rogerclarkmelbourne/Arduino_STM32/wiki/Bootloader|wiki]]). + 
-It works well on most generic boards and is small (8kB).+Here I will explain how to use USB DFU with the [[https://github.com/rogerclarkmelbourne/STM32duino-bootloader|STM32duino-bootloader]] because it provides binaries for numerous development boards (while mine supports only a few, needs to be configured, and must compiled), but for other DFU bootloaders just replace with the corresponding USB ID.
  
 If you want to make use of USB in your actual application after the bootloader started it, don't forget to force re-enumerating USB so the host computer sees the new interface: If you want to make use of USB in your actual application after the bootloader started it, don't forget to force re-enumerating USB so the host computer sees the new interface:
stm32f1xx.txt · Last modified: 2024/01/07 17:49 by 127.0.0.1

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