dji ROBOMASTER - Customizable I;O Port; UART Ports

ROBOMASTER Development Board Type C
User Manual
10
© 2020 DJI All Rights Reserved.
串口上拉3.3V
卧式
VCC_5V
VCC_3V3
UART1_TX[4]
UART1_RX[4]
D23PESD5V0F1BL
C A
C12547pF0201
J30
1.25T-7-4AW
1
1
2
2
3
3
4
4
5
5
6
6
R131
33.0R 0201
D24PESD5V0F1BL
C
A
C12647pF0201
R132
4.7KR
0201
R133
4.7KR
0201
Customizable I/O Port
The customizable I/O port is an 8-pin ejector header connector with each pin spaced 2.54 mm apart,
which can be used for connecting an IIC or SPI device. The port supports communication devices
with a rated voltage of 3.3 or 5 V*.
VCC_3V3
VCC_5V
I2C2_SCL [5]
I2C2_SDA [5]
SPI2_CS[4]
SPI2_CLK[4]
SPI2_MOSI[4]
SPI2_MISO[4]
D14PESD5V0F1BL
C
A
D16PESD5V0F1BL
C A
R128 33.0R
0201
C11747pF0201
D17PESD5V0F1BL
C
A
C11847pF0201 C11947pF0201
C12047pF0201
U17
JCX09-A-2-4
1 2
3 4
5 6
7 8
R127
2.2KR
0402
D18PESD5V0F1BL
C A
D19PESD5V0F1BL
C
A
R209
0.0R0805
R210
0.0R0805 NC
R126
2.2KR
0402
D15PESD5V0F1BL
C
A
C11547pF0201
C11647pF0201
The port pin is shown below.
1 2 3 4 5 6 7 8
SPI2_CS GND SPI2_CLK 3.3V SPI2_MOSI I2C2_SCL SPI2_MISO I2C2_SDA
* Whena5Vexternaldeviceisrequired, aR210resistormustbeweldedmanuallyandthe R209resistormustbe
removed.
UART Ports
The two UART ports map to the UART1 4-pin external port and the UART6 3-pin external port of
the STM32. The two ports can be connected to the RoboMaster Power Management Module and
the baud rate can be configured. An external level conversion chip is required for the ports to
communicate with a RS485 or RS232 port. The ports only support 3.3 and 5 V.
1
2
3
4
5
6
7
8
Horizontal
The serial port is
pulled up to 3.3 V