DocID026046 Rev 1

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AN4457

Example

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3.2

Software settings

The project example includes two workspaces: UART_EMUL and UART_HW (see

Figure 10).

To make the program work, follow the steps described below:

1.

Open your preferred toolchain (EWARM or MDK-ARM).

2.

Rebuild all files and load your image into target memory.

3.

Run the example.

Figure 10. Example MDK-ARM workspaces

3.3

Running the example

To run the example follow the sequence below:

1.

Power on the two boards.

2.

Load the code in each board MCU.

3.

Press the user button key on board A. The example then starts running and the UART

emulator starts transmitting data.

4.

The UART hardware receives the data and sends them back to UART emulator.

5.

The data transmitted by the UART emulator is compared to received ones: if data do

not match, the green LED (LED2) toggles continuously.

Note:

For more details, refer to the readme.txt inside the firmware package.