C'est passé, lorsque j'ai choisi le fichier environnement ender3. Mais j'obtient une erreur sur le tft35 :
"TMC Connection Error"
checking size .pio\build\STM32F103RC_btt\firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM: [=== ] 26.8% (used 13192 bytes from 49152 bytes)
Flash: [======= ] 71.3% (used 186904 bytes from 262144 bytes)
Configuring upload protocol...
AVAILABLE: blackmagic, cmsis-dap, dfu, jlink, serial, stlink
CURRENT: upload_protocol = stlink
Uploading .pio\build\STM32F103RC_btt\firmware.bin
xPack OpenOCD, x86_64 Open On-Chip Debugger 0.10.0+dev-00378-ge5be992df (2020-06-26-09:29)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
debug_level: 1
hla_swd
Error: open failed
in procedure 'program'
shutdown command invoked
*** [upload] Error 1
Configuration_adv.h
Configuration.h