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Radar Baseboard MCU4
XENSIV™ 24 GHz radar system platform
Hardware description – Radar Baseboard MCU4
2.2
Block diagram
Figure 2 shows the block diagram of the Radar Baseboard MCU4. It features Infineon's XCM4700, 32-bit Arm®
Cortex®-M4 based microcontroller for signal processing. It has two connectors to interface with the RF shield.
The board also has several debugging possibilities such as Tag connect, cortex connector and also an onboard
debugger. For user flexibility, it has three configurable LEDs that can be used for status indication and also a
configurable button. An SD card reader is also available for data storage.
The board is powered via the micro-USB cables. It is also possible to power it via external 7 V power supply or
with a battery. A series of low-noise voltage regulators is used to provide a regulated power supply to the
different building blocks of the board and the connected shield. There are three current sensors on the board
for measuring current consumption of the connected shield or Arduino.
Micro
12
MHz
XMC4200
(Debugger)
Figure 2
Block diagram – Radar Baseboard MCU4
2.3
Power supply
The Radar Baseboard MCU4 is powered via external 7 V power, battery or two micro-USB cables. Figure 3 shows
the power supply concept used in the system.
Application Note
External Power Supply
Micro
USB
USB
Battery Manager
Battery
XMC4700
User LED
User LED
SD card
SDMMC
reader
5V
Debug
LDO
LED
3.3V
UART
SWD
SCK
7V
LDO
5Vinput
R
shunt
5V
VCC1
LDO
Current Sensors
3.3V
USIC
CCU8
CCU4
ADC
12
MHz
7
V2.1
2023-02-14
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