Overview
========
The uart_edma example shows how to use uart driver with EDMA:
In this example, one uart instance connect to PC through uart, the board will
send back all characters that PC send to the board.
Note: The example echo every 8 characters, so input 8 characters every time.
Toolchain supported
===================
- IAR embedded Workbench 7.50.1
- Keil MDK 5.17
- GCC ARM Embedded 2015-4.9-q3
- Kinetis Development Studio IDE 3.0.0
- Atollic TrueSTUDIO 5.4.0
Hardware requirements
=====================
- Mini/Micro USB cable
- FRDM-K22F board
- Personal Computer
Board settings
==============
No special is needed.
Prepare the Demo
================
1. Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.
2. Open a serial terminal on PC for OpenSDA serial device with these settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
3. Download the program to the target board.
4. Reset the SoC and run the project.
Running the demo
================
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
~~~~~~~~~~~~~~~~~~~~~~~~~~~
UART DMA example
Send back received data
Echo every 8 characters
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Customization options
=====================
