User's Manual

©Ehong Technology Co.,Ltd 2014-2019. Page 8 of 14
5. Pinout and Terminal Description
5.1 Pin Configuration
Figure 1： Pinout of EH-MC16
Pin
Pin
I/O
Description
Remark
1
GND
2
UART_TX
UART TX
The test point for MP needs to be reserved Use of
calibration
3
UART_RX
UART RX
The test point for MP needs to be reserved Use of
calibration
4
SWDIO
AIO/DIO
Programmable IO
General purpose IO; 8mA driving capability.With
wakeup function.With internal strong/weak pull-up
and pull-down.SWDIO (default)
5
SWDCLK
AIO/DIO
Programmable IO
General purpose IO; 8mA driving capability.With
wakeup function.With internal strong/weak pull-up
and pull-down.SWDIO (default)
6
ADC2
AIO/DIO
Programmable IO
GPIO
7
LOG
UART RX
Power on trap: Pull-up for normal operation Pull-
down to bypass executing program code in flash
(PAD internal pull-up by default).
8
LED1
AIO/DIO
Programmable IO
GPIO
9
SPI_CLK
DIO
Programmable IO
GPIO
10
SPI_MISO
DIO
Programmable IO
GPIO
11
SPI_MOSI
DIO
Programmable IO
GPIO
12
SPI_CSN
DIO
Programmable IO
GPIO
13
GND
14
RESET
Global reset, active
low
The test point for MP needs to be reserved Use of
calibration
EH-MC16 Data Sheet