2
MODULE INTERFACES
Pin number
Symbol
I/O type
Function
9
PA26
I/O
Common IO pin,
which
corresponds to PA
26 of IC
10
PA28
I/O
Support hardware
PWM function and
correspond to PA
28 of IC
11
U0RX
I/O
LOG serial
interface input pin
12
PB21
I/O
Common IO pin,
which
corresponds to PB
21 of IC
13
PA25
I/O
Support hardware
PWM function and
correspond to PA
25 of IC
14
GND
P
Power supply
reference ground
15
GND
P
Power supply
reference ground
16
EN
I/O
External reset
signal
17
ADC
AI
ADC port
18
GND
P
Power supply
reference ground
Note
:
• P indicates power supply pins, I/O indicates input/output pins and AI indi-
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