Modifications

#  Pour les cartes: Le connecteur doit inclure lles broches ID_SD et ID_SC et doit:

#  Pour les cartes: Le connecteur doit inclure lles broches ID_SD et ID_SC et doit:

## soit utiliser un ID EEPROM valide sur ces broches

## soit utiliser un ID EEPROM valide sur ces broches

## soit raccorder ID_SD à la masse to GND (permet au Pi de savoir qu'il y a une carte branchée) et laisser la broche ID_SC déconnectée.<br />{{ambox-stop|text=Do not use ID_SC and ID_SD pins for anything except an ID_EEPROM, or shorting ID_SD to GND on non-EEPROM boards.}}

## soit raccorder ID_SD à la masse to GND (permet au Pi de savoir qu'il y a une carte branchée) et laisser la broche ID_SC déconnectée.

# If back-powering via the 5V GPIO header pins you must make sure that it is safe to do so even if the Pi 5V supply is also connected. Adding an ideal 'safety' diode identical to the one on B+ as per the relevant section of the design guide is the recommended way to do this.

# If back-powering via the 5V GPIO header pins you must make sure that it is safe to do so even if the Pi 5V supply is also connected. Adding an ideal 'safety' diode identical to the one on B+ as per the relevant section of the design guide is the recommended way to do this.

# The board must protect against old firmware accidentally driving GPIO6,14,16 at boot time if any of those pins are also driven by the board itself.

# The board must protect against old firmware accidentally driving GPIO6,14,16 at boot time if any of those pins are also driven by the board itself.

Note that for new designs that only use the original 26 way GPIO header pins it is still recommended to follow requirement 2. if the board supports back-powering a Pi.

Note that for new designs that only use the original 26 way GPIO header pins it is still recommended to follow requirement 2. if the board supports back-powering a Pi.