Comment corriger PlatformIO Error: libusb_open() failed with LIBUSB_ERROR_ACCESS

Problème

Quand vous essayez de flasher votre firmware en utilisant PlatformIO, vous voyez un message d’erreur tel que

platformio_libusb_error.txt

Building in release mode
Checking size .pio/build/nucleo_h743zi/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [=         ]   7.4% (used 38876 bytes from 524288 bytes)
Flash: [          ]   3.2% (used 67004 bytes from 2097152 bytes)
Configuring upload protocol...
AVAILABLE: blackmagic, cmsis-dap, jlink, mbed, stlink
CURRENT: upload_protocol = stlink
Uploading .pio/build/nucleo_h743zi/firmware.elf
xPack Open On-Chip Debugger 0.12.0-01004-g9ea7f3d64-dirty (2023-01-30-15:03)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
debug_level: 1

srst_only separate srst_nogate srst_open_drain connect_deassert_srst

Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: open failed
in procedure 'program'
** OpenOCD init failed **
shutdown command invoked

*** [upload] Error 1
======================================================================= [FAILED] Took 1.45 seconds =======================================================================

Building in release mode
Checking size .pio/build/nucleo_h743zi/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [=         ]   7.4% (used 38876 bytes from 524288 bytes)
Flash: [          ]   3.2% (used 67004 bytes from 2097152 bytes)
Configuring upload protocol...
AVAILABLE: blackmagic, cmsis-dap, jlink, mbed, stlink
CURRENT: upload_protocol = stlink
Uploading .pio/build/nucleo_h743zi/firmware.elf
xPack Open On-Chip Debugger 0.12.0-01004-g9ea7f3d64-dirty (2023-01-30-15:03)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
debug_level: 1

srst_only separate srst_nogate srst_open_drain connect_deassert_srst

Error: libusb_open() failed with LIBUSB_ERROR_ACCESS
Error: open failed
in procedure 'program'
** OpenOCD init failed **
shutdown command invoked

*** [upload] Error 1
======================================================================= [FAILED] Took 1.45 seconds =======================================================================

Solution

Votre utilisateur système actuel n’a pas accès aux périphériques USB. Afin de corriger cela, utilisez

add_user_to_plugdev.sh

sudo usermod -a -g plugdev $USER

sudo usermod -a -g plugdev $USER

Notez que le changement ne prendra effet qu’après vous être déconnecté et reconnecté, ou après un redémarrage.

De plus, vous devez installer les règles udev PlatformIO actuelles :

install_platformio_udev_rules.sh

curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/system/99-platformio-udev.rules | sudo tee /etc/udev/rules.d/99-platformio-udev.rules

curl -fsSL https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/system/99-platformio-udev.rules | sudo tee /etc/udev/rules.d/99-platformio-udev.rules

et puis redémarrez udev :

restart_udev.sh

sudo systemctl restart udev

sudo systemctl restart udev

Après cela, débranchez et rebranchez le câble USB menant au microcontrôleur, ou redémarrez votre système.

Après avoir fait tout cela, votre envoi devrait fonctionner :

platformio_upload_success.txt

Checking size .pio/build/nucleo_h743zi/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [=         ]   7.4% (used 38876 bytes from 524288 bytes)
Flash: [          ]   3.2% (used 67004 bytes from 2097152 bytes)
Configuring upload protocol...
AVAILABLE: blackmagic, cmsis-dap, jlink, mbed, stlink
CURRENT: upload_protocol = stlink
Uploading .pio/build/nucleo_h743zi/firmware.elf
xPack Open On-Chip Debugger 0.12.0-01004-g9ea7f3d64-dirty (2023-01-30-15:03)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
debug_level: 1

srst_only separate srst_nogate srst_open_drain connect_deassert_srst

[stm32h7x.cpu0] halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0800a0d0 msp: 0x24080000
** Programming Started **
Warn : Adding extra erase range, 0x08010880 .. 0x0801ffff
** Programming Finished **
** Verify Started **
** Verified OK **
** Resetting Target **
shutdown command invoked
=========================

Checking size .pio/build/nucleo_h743zi/firmware.elf
Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
RAM:   [=         ]   7.4% (used 38876 bytes from 524288 bytes)
Flash: [          ]   3.2% (used 67004 bytes from 2097152 bytes)
Configuring upload protocol...
AVAILABLE: blackmagic, cmsis-dap, jlink, mbed, stlink
CURRENT: upload_protocol = stlink
Uploading .pio/build/nucleo_h743zi/firmware.elf
xPack Open On-Chip Debugger 0.12.0-01004-g9ea7f3d64-dirty (2023-01-30-15:03)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
debug_level: 1

srst_only separate srst_nogate srst_open_drain connect_deassert_srst

[stm32h7x.cpu0] halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x0800a0d0 msp: 0x24080000
** Programming Started **
Warn : Adding extra erase range, 0x08010880 .. 0x0801ffff
** Programming Finished **
** Verify Started **
** Verified OK **
** Resetting Target **
shutdown command invoked
=========================