Texas Instruments DP83826EVM, Руководство пользователя, Страница: 8 / 28

Introduction
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8 SNLU262 – December 2019
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DP83826EVM User’s Guide
2.2.2 Software
The on-board MSP430 comes pre-programmed and ready to use. When using this EVM for the first time
on a Windows 7 (or above) PC, MSP430 drivers and USB-2-MDIO software utility will have to be installed.
USB-2-MDIO software can be used for accessing the PHY's registers. In the case where an external
MSP430 or EZFET is needed, the user may simply connect the TST and RST pins of their device to the
DP83826EVM.
Figure 5. DP83826EVM External MSP Connection
2.2.2.1 MSP430 Driver
Install the latest MSP430 drive from this website: http://software-
dl.ti.com/msp430/msp430_public_sw/mcu/msp430/MSP430_FET_Drivers/latest/index_FDS.html .
2.2.2.2 USB-2-MDIO Software
Download the software from http://www.ti.com/tool/usb-2-mdio .
The webpage also contains the User’s Guide for installing and using the software. Because the MSP430
is on-board the DP83826EVM, it is not necessary to purchase a separate MSP430 Launchpad kit and
connect to the PHY using wires.
In the case the on-board MSP430 cannot be used for some reason, MDIO and MDC pins are also broken
out on J1 and J2 pins, respectively. Users can connect an MSP430 launchpad or their own MDIO-MDC
utility on J1 and J2 to access the PHY.