Problème upload sur carte nano

Bonjour à tous,

Je débute en arduino (pas en programmation), et j'ai un souci d'upload. Pour info, j'utilise arduino ide v2.2.1 . Je ne suis pas vraiment manchot du côté arduino, car je suis aussi électricien et ai touché à l'électronique dans ma jeunesse (à l'époque, l'eeprom commençait à devenir grand public - pour les avertis, bien sur- ça vous situe....)

J'ai acheté récemmment une arduino nano (sur aliexpress, lien ici - version usb c - nue) pour faire des tests. Lorsque je la branche, la led alimentation s'allume et manifestement le sketch blink est chargé: la led built-in clignote.

Si je prends dans l'ide le sketch blink et que je modifie les délais, ça compile mais n'uploade pas. Voici au grand complet tous les message de l'ide: (désolé pour la quantité, je ne sais pas encore sélectionner les msgs nécessaires)

Code:

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FQBN: arduino:avr:nano Using board 'nano' from platform in folder: C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6 Using core 'arduino' from platform in folder: C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6   Detecting libraries used... C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR -IC:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino -IC:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\variants\eightanaloginputs C:\Users\pgw10-1\AppData\Local\Temp\arduino\sketches\4C5D3D6AB897EBB2DCE80BDB78AB6A57\sketch\Blink.ino.cpp -o nul Generating function prototypes... C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\tools\avr-gcc\7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR -IC:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino -IC:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\variants\eightanaloginputs C:\Users\pgw10-1\AppData\Local\Temp\arduino\sketches\4C5D3D6AB897EBB2DCE80BDB78AB6A57\sketch\Blink.ino.cpp -o C:\Users\pgw10-1\AppData\Local\Temp\3685043441\sketch_merged.cpp C:\Users\pgw10-1\AppData\Local\Arduino15\packages\builtin\tools\ctags\5.8-arduino11/ctags -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives C:\Users\pgw10-1\AppData\Local\Temp\3685043441\sketch_merged.cpp Compilation du croquis... "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\sketch\\Blink.ino.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\sketch\\Blink.ino.cpp.o" Compiling libraries... Compiling core... "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\USBCore.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\USBCore.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 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-DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\HardwareSerial.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\HardwareSerial0.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial0.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\HardwareSerial3.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial3.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\IPAddress.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\IPAddress.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\Print.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\Print.cpp.o" 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"-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\Tone.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\Tone.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" 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"C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\abi.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\abi.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\hooks.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\hooks.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\main.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\main.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -Wall -Wextra -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\new.cpp" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\new.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring_analog.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_analog.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring_digital.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_digital.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -x assembler-with-cpp -flto -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring_pulse.S" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_pulse.S.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring_shift.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_shift.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -c -g -Os -Wall -Wextra -std=gnu11 -ffunction-sections -fdata-sections -MMD -flto -fno-fat-lto-objects -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\eightanaloginputs" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino\\wiring_pulse.c" -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_pulse.c.o" C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp: In function 'void* operator new(std::size_t, std::nothrow_t)': C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp:59:60: warning: unused parameter 'tag' [-Wunused-parameter] void * operator new(std::size_t size, const std::nothrow_t tag) noexcept { ^~~ C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp: In function 'void* operator new [](std::size_t, const std::nothrow_t&)': C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp:68:63: warning: unused parameter 'tag' [-Wunused-parameter] void * operator new[](std::size_t size, const std::nothrow_t& tag) noexcept { ^~~ C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp: In function 'void operator delete(void*, const std::nothrow_t&)': C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp:103:55: warning: unused parameter 'tag' [-Wunused-parameter] void operator delete(void* ptr, const std::nothrow_t& tag) noexcept { ^~~ C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp: In function 'void operator delete [](void*, const std::nothrow_t&)': C:\Users\pgw10-1\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino\new.cpp:106:57: warning: unused parameter 'tag' [-Wunused-parameter] void operator delete[](void* ptr, const std::nothrow_t& tag) noexcept { ^~~ "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\CDC.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial0.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial1.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial2.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\HardwareSerial3.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\IPAddress.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\PluggableUSB.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\Print.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\Stream.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\Tone.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\USBCore.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\WInterrupts.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\WMath.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\WString.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\abi.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\hooks.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\main.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\new.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_analog.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_digital.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_pulse.S.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_pulse.c.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc-ar" rcs "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\core.a" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\core\\wiring_shift.c.o" Archivage du noyau construit (mise en cache) dans: C:\Users\pgw10-1\AppData\Local\Temp\arduino\cores\arduino_avr_nano_cpu_atmega328_7763944657e90f401d76c6f227688778\core.a Linking everything together... "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-gcc" -Wall -Wextra -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.elf" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57\\sketch\\Blink.ino.cpp.o" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/core\\core.a" "-LC:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57" -lm "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.elf" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.eep" "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy" -O ihex -R .eeprom "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.elf" "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.hex"   "C:\\Users\\pgw10-1\\AppData\\Local\\Arduino15\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-size" -A "C:\\Users\\pgw10-1\\AppData\\Local\\Temp\\arduino\\sketches\\4C5D3D6AB897EBB2DCE80BDB78AB6A57/Blink.ino.elf" Le croquis utilise 932 octets (3%) de l'espace de stockage de programmes. Le maximum est de 30720 octets. Les variables globales utilisent 9 octets (0%) de mémoire dynamique, ce qui laisse 2039 octets pour les variables locales. Le maximum est de 2048 octets. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x1f avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x1f Failed uploading: uploading error: exit status 1

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Avec une carte uno rev 3, je n'ai pas ce problème. Je pense que c'est dû au fait que je n'ai pas fait attention au protocole usb présent sur la nano: pilote usb Ardu37CH340.

La question: y'a-t-il un moyen de contourner ce problème, et de faire que l'ide utilise un autre protocole d'upload (si là est bien le problème) ?

Merci d'avance,

Edgar.

ps: la carte est bien reconnue par l'ide.

Bonjour,

Les messages de chargement (10 essais 10 échecs) semblent dire que la carte ne répond pas. Le lien suivant est assez clair tant pour l'installation du drver que pour le chargement :
https://tropratik.fr/comment-program...c-larduino-ide

Salutations

Merci @Guesset pour ta réponse.

Le gestionnaire de périphéeque windows (w10 dans mon cas) m'affiche bien qu'il a trouvé un périphérique USB-SERIAL CH340 (COM11 [dans mon cas] ). Je n'ai pas eu besoin d'installer un driver. Et si je lance l'ide arduino, et que je connecte la nano ensuite, l'ide trouve bien la nano en com11 (le gestionnaire de cartes installé est l'avr arduino 1.8.6).

Hélas, j'ai toujours une erreur de transfert (parfois resp=0xef, parfois 0x00). J'avais acheté deux de ces cartes, j'ai donc essayé la seconde (au cas où la première serait défectueuse): même problème. J'ai changé le câble usb c - usb c par un autre, j'ai également tenté la connection sur un port usb a avec adaptateur usb a - usb c (sait-on jamais que que mon port usb c déconne) (et avec 2 adaptateurs différents), mais rien n'y fait, avec aucune des deux cartes, toujours cette erreur d'upload.

A tout hasard, une autre idée ?

PS: le lien que tu as donné est pour l'ide v1.8.x, mais on l'adapte facilement à l'ide 2.1.1

Voir peut être ici : Select the right processor for Arduino Nano

Merci pour ta réponse @Jerome Briot. En sélectionnant la version Old Bootloader, l'upload a bien lieu. Ouf, problème résolu.

Encore merci à vous deux pour votre aide.

Edgar;

Edit: en quoi la version old bootloader impacte-t-elle l'utilisation de la nano ?