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Radar Baseboard MCU4
XENSIV™ 24 GHz radar system platform
Hardware description – Radar Baseboard MCU4
Table 1
User LEDs pin assignment
LED
D9, D10 (red LED)
D9, D10 (green LED)
D9, D10 (blue LED)
2.8
User-configurable button
The Radar Baseboard MCU4 has a user-configurable button, S1, for additional functionality and flexibility for
the user. It is interfaced with XMC4700 at the P8.8 pin.
Figure 13
User-configurable button
2.9
SD card reader
The baseboard also has a SD card reader connected to the XMC4700's SDMMC block. This SD card reader can be
used to collect and store raw data.
Figure 14
SD card reader connections
2.10
Level shifters
The baseboard has three level shifters (U6, U7 and U8), as shown in Figure 15, for translating logic voltage
levels.
Port A tracks VCCA (3V3_digital) and port B tracks VCCB (configurable using the P7 header to 3.3 V or 5 V). These
level translations are important for Arduino operation. When the Output Enable (OE) input is low, all outputs
are placed in the high-impedance state.
Application Note
MCU port pin
P1.15
P1.14
P1.13
14
V2.1
2023-02-14
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