Initial Pin State of LinkIt 7697

The table below shows the HIGH/LOW state of each pin in LinkIt 7697, along with the reason why.

  • Pin #: Pin number of the onboard silk print.
  • GPIO #: GPIO number on the pin-out diagram and datasheet.
  • Resetting: pin state when pressing the RST key of LinkIt 7697.
  • Bootloader default: pin state after bootup and before Arduino APIs altering the pin mode and state.

Pin #GPIO #ResettingBootloader deafultNote
P02HH

During resetting, this pin is pulled-up by the CP2102N chipset.

After rebooting, the bootloader configures it in UART mode and hence the HIGH state.

P13LH

After rebooting, the bootloader configures it in UART mode and hence the HIGH state.

P20LL*

*After updating the bootloder in Arduino BSP version v0.8.1

P339LL 
P434HLDuring resetting, this is the default behavior of the RTL design of the chipset.
P533HLDuring resetting, this is the default behavior of the RTL design of the chipset.
P637LHAfter bootup: bootloader configured this pin as UART_TX and now changed to GPIO after the current commit.
P736LL 
P827HHOnboard I2C pull-up circuit
P928HHOnboard I2C pull-up circuit
P1032LL 
P1129LL 
P1230LL 
P1331LL 
P1457LL 
P1558LL 
P1659LL 
P1760LL