Page 97 - ARM Based Microcontroller Projects Using MBED

7.4 PROJECT 1—FLASHING LED 83
7.4 PROJECT 1—FLASHING LED

7.4.1 Description
In this project the user LED on the Nucleo-F411RE board is flashed every 2s.

7.4.2 Aim
The aim of this project is to show how the Mbed can be used to write a program, compile it,
and then upload the program to the program memory of the Nucleo development board. Ad-
ditionally, the program shows how a GPIO port can be used in output mode and also how the
user LED on the board can be flashed at regular intervals.

7.4.3 Block Diagram
Fig. 7.9 shows the block diagram of the project.

7.4.4 PDL of the Project

The PDL of the project is shown in Fig. 7.10

FIG. 7.9 Block diagram of the project.

BEGIN
Configure user LED as output
DO FOREVER
Turn ON LED
Wait 2 seconds
Turn OFF LED
Wait 2 seconds
ENDDO
END
FIG. 7.10 PDL of the project.