Texas Instruments AWR2944EVM, User Manual, Page: 26 / 36

Table 2-10. Current Sensor Supply Details (continued)
Reference Designator Supply Node PCB Net Name
U22 AWR 1.0-V Supply 1V0
2.7 PC Connection
The PC connectivity is provided via two micro USB connectors, J8 and J10.
2.7.1 XDS110 Interface
J8 provides access to the onboard XDS110 (TM4C1294NCPDT) emulator. This connection provides the
following interfaces to the PC:
• JTAG for CCS connectivity
• MSS logger UART (can be used to get MSS code logs on the PC)
When the J8 USB is connected to the PC the device manager should recognize two XDS110 COM ports under
Ports (COM & LPT).
Figure 2-18. XDS110 COM Ports
XDS110 debug probe and data port are detected under Texas Instruments Debug Probes.
Figure 2-19. TI Debug Probes
If the PC is unable to recognize the above COM ports, install the latest EMUpack .
2.7.2 FTDI Interface
J10 provides access to the onboard FTDI ports. This provides the following interfaces to the PC:
• FTDI Port A -> MSS_SPIA interface
• FTDI Port B-> MSS_I2C interface; Host INTR signal.
• FTDI Port C -> BSS_UART port; DSS_UART port (not populated by default); NRESET and WARMRST
control signals.
• FTDI Port D -> MSS_RS232 port; SOP0, SOP1, and SOP2 control signals
When the USB is connected for the first time to the PC, Windows ® maybe not be able to recognize the device.
This is indicated in the device manager with yellow exclamation marks, as shown in Figure 2-20 .
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26 AWR2944EVM User’s Guide SPRUJ22 – NOVEMBER 2021
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