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 #
Resetting
Bootloader deafult
Note
P0
2
H
H
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.
P1
3
L
H
After rebooting, the bootloader configures it in UART mode and hence the HIGH state.
P2
0
L
L*
*After updating the bootloder in Arduino BSP version v0.8.1
P3
39
L
L
P4
34
H
L
During resetting, this is the default behavior of the RTL design of the chipset.
P5
33
H
L
During resetting, this is the default behavior of the RTL design of the chipset.
P6
37
L
H
After bootup: bootloader configured this pin as UART_TX and now changed to GPIO after the current commit.
P7
36
L
L
P8
27
H
H
Onboard I2C pull-up circuit
P9
28
H
H
Onboard I2C pull-up circuit
P10
32
L
L
P11
29
L
L
P12
30
L
L
P13
31
L
L
P14
57
L
L
P15
58
L
L
P16
59
L
L
P17
60
L
L
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