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3.1.1
Push Buttons
There are three push buttons on the board connected, as described in
the attached signal is pulled low; otherwise it is pulled high.
3.1.2
LEDs
There are seven LEDs on the board which function, as described in
LED
D1
D2
D3
D4
D5
D6
D7
3.1.3
Power
The board can be powered with 5 V input through the J1 barrel connector.
3.1.4
USB-to-UART Port (J3)
The board features FD232 USB UART IC, which acts an external serial port. It is connected to the OMAP-
L138/C6748 UART2 peripheral.
Windows and Linux drivers for the chip can be found on the
3.2
Setup the Out of the Box Demonstration on LCDK
The LCDK provides a quick start guide in the packaging that walks users through the hardware setup to
run the out of the box demonstration that is programed in the flash or on the SD card included in the kit.
Please follow the instruction in the quick start guide to setup the demonstration. The Quick start guide is
also available to access online on ti.com in URLs provided below:
•
TMSLCDK6748 Quick Start Guide
•
OMAP-L138 DSP+ARM9™ Development Kit (LCDK) Quick Start Guide
SPRUIL2A – February 2019 – Revised September 2019
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Table 7. Push Buttons
Switch Number
S1
S2
S3
Signal
5V_IN
VOLT_ERR
VCC_5VD_IN
GPIO6[13]
GPIO6[12]
GPIO2[12]
GPIO0[9]
Copyright © 2019, Texas Instruments Incorporated
Setting up the OMAP-L138/C6748 Development Kit (LCDK)
Table
Table 8. LEDs
FTDI product
OMAP-L138/C6748 Low-Cost Development Kit (LCDK)
Table
7. When a button is pressed,
Pin
Reset
GPIO2[4]
GPIO2[5]
8.
Lit when...
5 V is applied to J1
Input voltage is > 5.8 V
Board is powered from either J1 or USB
Signal is high
Signal is high
Signal is high
Signal is high
page.
7
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