User Manual

10
SWC
GPIO07
O
Simulator debugging SWC
（pull-down）
IO
11
VCC
O
Power input 3.3V， Maximum peak
current150mA。
12
GND
Power
System GND
13
UART0_RX
GPIO16
IO
Serial port 0 receive
IO-download-print
14
UART0_TX
GPIO17
IO
Serila port 0 send
IO-download-print
15
IIC0_SCL
GPIO14
IO
IIC0 clk
IO
16
IIC0_SDA
GPIO15
IO
IIC0 DATA
IO
17
/RST
O
System reset, low effectiveness
18
GPIO09
GPTIM1_CH1
O
IO
PWM output
19
GPIO5
ADC2
IO/A
IO
ADC CH2
20
ADC3
GPIO04
A/IO
ADC CH3
IO
21
LPUART_RX
GPIO60
IO
Low Power UART RX
IO-AT interactive
22
LPUART_TX
GPIO47
IO
Low Power UART TX
IO
23
OPA0_INP
GPIO45
A/IO
Operational amplifier 0, positive
enter point
IO
24
OPA0_INN
GPIO44
A/IO
Operational amplifier 0, negative
enter point
IO
25
OPA0_OUT
GPIO10
A/IO
Operational amplifier 0，output point
IO
27
GND
Power
System GND
28
ANT
RF
Antenna wire
29
GND
Power
System grounding line
Note ：I –Input， O-Output, A-Analog
Module has various functions and support various software. The functions are chosen
by this protocol are marked by red.