Peripheral DMA Controller Example

Purpose

The pdc_uart example demonstrates how to use PDC driver to receive/send data from/to the UART.

Requirements

This example can be used on any SAM3/4 boards.

Description

The SAM controller waits for BUFFER_SIZE data to receive from the UART. As soon as the expected amount of data is received, the whole buffer is sent back to the terminal.

Usage

1. Build the program and download it into the evaluation board.
2. On the computer, open, and configure a terminal application (e.g., HyperTerminal on Microsoft® Windows®) with these settings:
   • 115200 baud
   • 8 bits of data
   • No parity
   • 1 stop bit
   • No flow control
3. In the terminal window, the following text should appear (values depend on the board and chip used):

      -- PDC Uart Example xxx --
      -- xxxxxx-xx
      -- Compiled: xxx xx xxxx xx:xx:xx --

4. The sent text should appear.