Getting Started, Testing Setup, and Test Results
27
TIDUEW7 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Integrated Power Supply Reference Design for NXP i.MX 6ULL
3.1.2
Software
The primary boot source used for testing TIDA-050043 was the SD card. The primary method for testing
was using a pre-built binary image to prepare SD card. The purpose of this section is getting started using
the software and assumes the software used is already written onto an SD Card that is inserted into the
correct slot on the PCB and the BOOT switches are set properly.
The software used for testing is an embedded Linux Yocto build with drivers written for all of the TI ICs
and patches to modify the original SDK written for the NXP i.MX 6ULL processor. Building and installing
the image requires a laptop running Ubuntu 16.04 (or later), 120 GB HDD, a fully-assembled TIDA-050043
board, micro-SD card, micro-SD to SD Card adaptor, a micro-USB cable, and a 5-V DC power supply.
The procedure for building and installing the software image is outside the scope of this document.
3.1.2.1
Booting of TIDA-050043
Insert the SD card into the SD card slot provided in the board and set the boot switches to boot from SD
card. If executables are not found in the configured boot source, then the software is automatically fetched
from the SD card.
Connect micro-B side of a USB cable to debug port of the board and Type-A side to a host PC. The
connections on the board at this step will look like
Figure 31. Board Connections for BOOT from SD Card With Debug Over USB (LCD screen removed)
Use TeraTerm or Putty to open a Terminal and get the debug log from the device node if the host PC is
running Windows. Change port number according to the COMxx port found in Device Manager for the
FTDI chip.
For example, when I am testing this board I can select the
COM7
port with a baud rate of
115200
and
leave the other
Putty
settings as the default option.
If the debug prints are coming when the board is powered on, then that interface is working. When
prompted to logon, enter
‘root’
and press the
Enter
key.
