Atmel AT91SAM7S A/D Example Program

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

• Atmel AT91SAM7S32
• Atmel AT91SAM7S64
• Atmel AT91SAM7S128
• Atmel AT91SAM7S256

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 (Options for Target - Device)
2. Build the project (Project - Build Target)
3. Start the uVision Debugger
4. Click the Serial #1 tab
5. Click Go or 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.