3.6 Connecting the USB Cable to the USB2ANY Interface Adapter
shows the typical response to connecting the USB2ANY Interface Adapter board to a USB port for
the first time. Typically, the PC responds with a
Found New Hardware, USB Device
pop-up dialog window. The
pop-up window then changes to
Found New Hardware, USB Human Interface Device
. This pop-up indicates that
the device is ready to be used. The USB2ANY Interface Adapter uses the human interface device drivers that
are included in the Windows
®
operating system (OS).
In some cases, the
Add Hardware Wizard
appears. If this prompt occurs, allow the system device manager to
install the human interface drivers by clicking
Yes
when requested to install drivers.
Figure 3-5. Confirmation of USB2ANY Driver Installation
CAUTION
The EVM default configuration does not require external power supplies, and power is sourced from
the USB2ANY. If external supplies are used, disconnect the supply connection from the 3p3V line
coming from the USB2ANY before attaching external supplies.
3.7 Optional EVM Operations
This section describes the various operational options that can be used by the EVM.
3.7.1 Power Configuration
The default configuration of the AFE881H1EVM allows the board to be powered from the 3p3V line coming from
the USB2ANY. Jumper J3 connects power from the 3p3V line to the PVDD and IOVDD pins of the device. To
use external power supplies, remove the jumpers in J3 to connect supplies to J1 and J4 for connections to
PVDD and IOVDD. When the external supply is 1.8 V, install R1 on the board; this resistor is not installed by
default. Provide the external 1.8-V supply to PVDD, VDD, and IOVDD through J1 and J4.
3.7.2 External SPI and UART Controllers
To use an external SPI or UART controller with EVM board, disconnect the USB2ANY controller, and disable the
U2 level shifter by uninstalling R13 and installing R2.
EVM Hardware Overview
10
AFE881H1 Evaluation Module
Copyright © 2021 Texas Instruments Incorporated
