User Manual

Chengdu Ebyte Electronic Technology Co., Ltd. E180-ZG120A/B Product Specification
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co., Ltd.
13
PA2
enter/output
reserved
14
PA3
enter/output
reserved
15
PA4
enter/output
reserved
16
PA5
enter/output
reserved
17
PB11
enter
Working mode switching pin, when the pull-down time is greater than
500ms, the working mode is switched.
18
PB12
enter
The UART_BAUD_RESET pin is used to reset the baud rate of the
device. It defaults to a high level when powered on. In any mode, if the
pin is pulled down for more than 1000ms, the serial port parameters of
the module will be restored to the default 115200.
19
PB13
output
The ACK pin is used to indicate the last user data transmission status.
The pin is pulled low before the transmission is started, and the pin is
pulled high after the transmission is successful.
20
GND
enter/output
Ground wire, connected to the power reference ground
21
PB14(GPIO0)
enter/output
GPIO enter/output port 0
22
PB15(GPIO1)
enter/output
GPIO enter/output port 1
23
GND
enter/output
Ground wire, connected to the power reference ground
24
GND
enter/output
Ground wire, connected to the power reference ground
25
GND
enter/output
Ground wire, connected to the power reference ground
26
PC6(GPIO2)
enter/output
GPIO enter/output port 2
27
PC7(GPIO3)
enter/output
GPIO enter/output port 3
28
PC8(ADC1)
enter
ADC detection port 1
29
PC9(ADC2)
enter
ADC detection port 2
30
PC10(ADC3)
enter
ADC detection port 3
31
PC11(ADC4)
enter
ADC detection port 4
32
SWCLK
enter/output
DBG_SWCLKTCK
33
SWDIO
enter/output
DBG_SWDIOTMS
34
PF2(PWM0)
output
PWM output port 0
35
PF3(PWM1)
output
PWM output port 1
36
PF4(PWM2)
output
PWM output port 2
37
PF5
-
reserved port
38
PF6
-
reserved port
39
PF7
output
The LINK pin indicates the current network status of the module, see
section 4.4.3 for details
40
RESETN
enter
reset pin
41
GND
enter/output
Ground wire, connected to the power reference ground
42
GND
enter/output
Ground wire, connected to the power reference ground
E180-ZG120B