Philips LPC21xx A/D Example Program

This example program shows how to configure and use the A/D Converter of the following microcontrollers:

• Philips LPC2114
• Philips LPC2119
• Philips LPC2124
• Philips LPC2129
• Philips LPC2131
• Philips LPC2132
• Philips LPC2138
• Philips LPC2194

After configuring the A/D Converter, the program reads A/D channel 0 and outputs the converted value using the serial port.

To run this program...

1. Select the Device (Project - Options for Target - Device)
2. Build the project (Project - Build Target)
3. Start the uVision Debugger
4. Open the Serial Window (View - Serial Window 1)
5. Click Run (F5)
6. Click on the Toolbox buttons to change input voltages

A debug script (debug.ini) creates buttons that set different analog values in A/D channels. As the program runs, you will see the A/D input and output change.

Other buttons create signals that generate sine wave or sawtooth patterns as analog inputs. µVision3 users may enable the built-in Logic Analyzer to view, measure and compare these input signals graphically.