Table of Contents
Advertisement
LPC2148 DEVELOPMENT BOARD
Note: 1. Total current drawn by all external peripherals must not be more than
150mA.
2. Do not connect any external supply to the 3V3 pin on the expansion header
3.2
LEDs
LPC2148 development board has 4 user programmable LEDs. The port pins for LEDs
are as shown in the above figure. Jumper D1 is associated with Led D1 and so on.
Jumper positions are as shown in the above figure. Alternatively you can make
connection between any port pin and LED directly using 1to1 cables. All LEDs are
common ground with series resistor of 1K.
Note: 1. Port pins P1.16, P1.17, P1.18 and P1.19 are also used for L293D direction
inputs.
3.3
USER SWITCHES
LPC2148 development board has 4 user programmable switches. The ports pins and
jumper settings are as shown in the above figure. When a switch is pressed it will pull the
associated pin to logic '0'. Port pins P0.15 and P0.30 features alternate function of
external interrupts. Jumper SW1 is associated with switch SW1 and so on.
NEX Robotics Pvt. Ltd.
45
www.nex-robotics.com
Advertisement
Table of Contents
Need help?
Do you have a question about the LPC2148 Pro and is the answer not in the manual?
Questions and answers