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I'm afraid that something in the code is making the COM port busy, but I don't know how to erase it, or to switch on the board without launching it. I read a lot of forum topics about the same problem but every time, it was a driver problem, that didn't solved anything for me. No device found on COM3, an error as occured while transferring sketchĪt the beginning, I there is something written that I didn't really understood:įorced reboot in progress at 1200bps open/close on the port COM3 Some of this report are in french because my IDE is in french, if I try to translate it in English, it's: Une erreur est survenue lors du transfert du croquis I can not get it to recognize the printer as a serial Port. For a STM32 Blue Pill I select the STM32F103C, Optimize 'Smallest', and Variant: '128KB'. For any Teens圓.x I select Optimize: 'Faster'. For a Teens圓.2 I select 72MHz operation though this isnt required. Redémarrage forcé en cours en 1200bps ouvert/fermé sur le port COM3Ĭ:\Users\noe\Documents\ArduinoData\packages\arduino\tools\bossac\1.7.0/bossac.exe -i -d -port=COM3 -U true -i -e -w -v C:\Users\noe\AppData\Local\Temp\arduino_build_137596/ -R C:UsersctrosDocumentsArduinohardwareanetavrvariantssanguino/pinsarduino.h:43:0. In the Arduino IDE select the correct serial port and board. Le croquis utilise 12592 octets (4%) de l'espace de stockage de programmes. The error displayed by the arduino IDE is this: Arduino : 1.8.5 (Windows Store 1.8.10.0) (Windows 10), Carte : "Arduino MKR FOX 1200" Sometimes, a led slowly blink on the board and my computer recognize it as "Arduino MKRFOX 1200 (bootloader)", but the arduino IDE is still not able to tranfer my code on it. I tried to connect/disconnect the USB cable from my computer and from the board, I restarted my computer, I tried to reset the board with the hard button and with the reset pin, I disconnected all the cable that I connected to the board, I re-installed the drivers, but nothing to do. I tried to comment then right after to see if they were the problem, but no. I'm using windows 10, when it begin, the only things I modified in my code and I tried to upload were this lines (at different places in the code): #include I was using it today when suddenly, the COM3 port has stopped working, for an unknown reason. I'm working on a project on a MKRFOX1200 board.