Texas Instruments IWR6843L EVM, Руководство пользователя, Страница: 9 / 16

5.2 LEDs
Table 5-2 contains the list of LEDs on the IWR6843LEVM.
Table 5-2. List of LEDs
Reference Designator Color Usage Comment
D3 Orange Power good This LED is used to indicate the PGOOD. If this LED is
glowing, it means that all of the voltage rails are in limits.
D4 Green USB enumeration LED Turns on while enumerating the USB
D5 Green Reset Toggles when reset button is depressed
D6 Green 5 V indicator Indicates the application of 5 V power
D7 Green GPIO 2 Connected to GPIO2 can be used when GPIO is set as an
output.
5.3 Connectors
Higher current support: When using the EVM with the MMWAVEICBOOST, the 5-V supply is provided by the
MMWAVEICBOOST board, so power over the USB connector is not required.
Note
After the 5-V power supply is provided to the EVM, TI recommends pressing the NRST switch one
time to ensure a reliable boot-up state.
Note
All digital IO pins of the device (except NERROR IN, NERROR_OUT, and WARM_RESET) are
non-failsafe; hence, care needs to be taken that they are not driven externally without the VIO supply
being present to the device.
5.4 USB Connector
The USB connector provides a 5-V supply input to power the device; additionally, the PC interface is brought out
on this connector:
• UART for flashing the onboard serial flash, downloading FW through Radar Studio, and getting application
data sent through the UART
• MSS logger UART (can be used to get MSS code logs on the PC)
Figure 5-2. USB Connector (J5)
www.ti.com Hardware Details
SWRU585 – NOVEMBER 2021
Submit Document Feedback
IWR6843L EVM 9
Copyright © 2021 Texas Instruments Incorporated