Altera DE1-SoC - Controlling HPS Users LED and KEY

DE1-SoC User Manual
87
www.terasic.com
March 14, 2014
 Demonstration Source Code
 Build tool: Altera SoC EDS v13.1
 Project directory: \Demonstration\SoC\my_first_hps
 Binary file: my_first_hps
 Build command: make ("make clean" to remove all temporary files)
 Execute command: ./my_first_hps
 Demonstration Setup
 Connect a USB cable to the USB-to-UART connector (J4) on the DE1-SoC board and
the host PC.
 Copy the demo file "my_first_hps" into a microSD card under the "/home/root"
folder in Linux.
 Insert the booting microSD card into the DE1-SoC board.
 Power on the DE1-SoC board.
 Launch PuTTY and establish connection to the UART port of Putty. Type "root" to
login Altera Yocto Linux.
 Type "./my_first_hps" in the UART terminal of PuTTY to start the program, and the
"Hello World!" message will be displayed in the terminal.
6
6
.
.
2
2
U
U
s
s
e
e
r
r
s
s
L
L
E
E
D
D
a
a
n
n
d
d
K
K
E
E
Y
Y
This demonstration shows how to control the users LED and KEY by accessing the register of
GPIO controller through the memory-mapped device driver. The memory-mapped device driver
allows developer to access the system physical memory.
 Function Block Diagram
Figure 6-1 shows the function block diagram of this demonstration. The users LED and KEY are
connected to the GPIO1 controller in HPS. The behavior of GPIO controller is controlled by the
register in GPIO controller. The registers can be accessed by application software through the
memory-mapped device driver, which is built into Altera SoC Linux.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.