Stm32f105 don't enter dfu mode
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‎2012-11-05 2:29 AM
Posted on November 05, 2012 at 11:29
Hello,
I designed a board which contains stm32f105 microcontroller, and i want to use DFU as bootloader in order to download my program to the micro controller through usb port. I put BOOT0 =1, and BOOT1=0 PA10=PD6=PB5=0 then i powered the circuit and connected it to usb port of my pc which runs windows xp. But the pc didn't recognise a new device. These are the processor data: STM32F105 VCT6 Z 990TD 93 MYS 99 045 First question: Why the pc didn't recognize a new device? Second question: the date code is 045 what year does this mean? Regards, HishamSolved! Go to Solution.
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‎2012-11-07 2:22 AM
Posted on November 07, 2012 at 11:22
Hello,
Finally the problem is solved. I connected pin 1 of the usb (power =5v) from computer directly to USB_VBUS pin PA9 in stm32f105 instead of connecting it through 20kOhm resistor and it works!
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‎2012-11-07 2:22 AM
Posted on November 07, 2012 at 11:22
Hello,
Finally the problem is solved. I connected pin 1 of the usb (power =5v) from computer directly to USB_VBUS pin PA9 in stm32f105 instead of connecting it through 20kOhm resistor and it works!Options
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‎2024-11-08 3:22 AM
I have the stm32f107 that has troubled me for the past few days. This resolved my issue. Thanks from the future
