New Horizons









Welcome to my blog

My name is Sven Andersson and I
work as a consultant in embedded
system design, implemented in ASIC
and FPGA.
In my spare time I write this blog
and I hope it will inspire others to
learn more about this fantastic field.
I live in Stockholm Sweden and have
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New Horizons
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Zynq Design From Scratch
Started February 2014
1 Introduction
Changes and updates
2 Zynq-7000 All Programmable SoC
3 ZedBoard and other boards
4 Computer platform and VirtualBox
5 Installing Ubuntu
6 Fixing Ubuntu
7 Installing Vivado
8 Starting Vivado
9 Using Vivado
10 Lab 1. Create a Zynq project
11 Lab 1. Build a hardware platform
12 Lab 1. Create a software application
13 Lab 1. Connect to ZedBoard
14 Lab 1. Run a software application
15 Lab 1. Benchmarking ARM Cortex-A9
16 Lab 2. Adding a GPIO peripheral
17 Lab 2. Create a custom HDL module
18 Lab 2. Connect package pins and implement
19 Lab 2. Create a software application and configure the PL
20 Lab 2. Debugging a software application
21 Running Linux from SD card
22 Installing PetaLinux
23 Booting PetaLinux
24 Connect to ZedBoad via ethernet
25 Rebuilding the PetaLinux kernel image
26 Running a DHCP server on the host
27 Running a TFTP server on the host
28 PetaLinux boot via U-boot
29 PetaLinux application development
30 Fixing the host computer
31 Running NFS servers
32 VirtualBox seamless mode
33 Mounting guest file system using sshfs
34 PetaLinux. Setting up a web server
35 PetaLinux. Using cgi scripts
36 PetaLinux. Web enabled application
37 Convert from VirtualBox to VMware
38 Running Linaro Ubuntu on ZedBoard
39 Running Android on ZedBoard
40 Lab2. Booting from SD card and SPI flash
41 Lab2. PetaLinux board bringup
42 Lab2. Writing userspace IO device driver
43 Lab2. Hardware debugging
44 MicroZed quick start
45 Installing Vivado 2014.1
46 Lab3. Adding push buttons to our Zynq system
47 Lab3. Adding an interrupt service routine
48 Installing Ubuntu 14.04
49 Installing Vivado and Petalinux 2014.2
50 Using Vivado 2014.2
51 Upgrading to Ubuntu 14.04
52 Using Petalinux 2014.2
53 Booting from SD card and SPI flash
54 Booting Petalinux 2014.2 from SD card
55 Booting Petalinux 2014.2 from SPI flash
56 Installing Vivado 2014.3

Chipotle Verification System
Introduction

EE Times Retrospective Series
It all started more than 40 years ago
My first job as an electrical engineer
The Memory (R)evolution
The Microprocessor (R)evolution

Four soft-core processors
Started January 2012
Introduction
Table of contents
Leon3
MicroBlaze
OpenRISC 1200
Nios II

Using the Spartan-6 LX9 MicroBoard
Started August 2011
Introduction
Table of contents
Problems, fixes and solutions

FPGA Design From Scratch
Started December 2006
Introduction
Table of contents
Index
Acronyms and abbreviations

Actel FPGA design
Designing with an Actel FPGA. Part 1
Designing with an Actel FPGA. Part 2
Designing with an Actel FPGA. Part 3
Designing with an Actel FPGA. Part 4
Designing with an Actel FPGA. Part 5

CAD
A hardware designer's best friend
Zoo Design Platform

Linux
Installing Cobra Command Tool
A processor benchmark

Mac
Porting a Unix program to Mac OS X
Fixing a HyperTerminal in Mac OS X
A dream come true

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The New York City Marathon

Skiing/Skating
Kittelfjall Lappland

Tour skating in Sweden and around the world
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Introduction
SSSK
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38000 feet above see level
A trip to Spain
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Photo Albums
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Kittelfjäll Lapland
Landsort Art Walk
Skating on thin ice

Books
100 Power Tips for FPGA Designers

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FPGA World
Lesley Shannon Courses
Mac 2 Ubuntu
Programmable Logic DesignLine
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Simplehelp
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World of ASIC



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Thursday, February 20, 2014
Zynq design from scratch. Part 14.
Run a software application

After installing the JTAG cable drivers and having a working connection to the ZedBoard we are ready to run the "Hello World" program. We will use Xilinx SDK to configure the ARM processing system load and run the program. Before we start SDK let's setup a terminal emulator.

Terminal emulator setup

We need to connect a terminal to the Zynq Processing system to be able to print out the "Hello World" string. We could of course connect a real hardware terminal but i think that is overkill. We will connect a terminal emulator instead. I have been using GTKterm for many years and find it very easy to use. Let's install it:

sudo apt-get install gtkterm

Starting GTKterm

gtkterm &

First time we start GTKterm we will get an error and this window pops up:





Here is the explanation.



This can easily be fixed by adding us to the dialout group using the following command:

sudo addgroup svenand dialout

Logout and login for the group add to take place.





Select Configuration->Port




Select port: /dev/ttyACM0 and set the baud rate to 115200.

If this window pops up just try a few more times and all of sudden it works. I have no explanation why this happens. Executing this command before starting GTKterm seems to fix the problem:

fuser -k /dev/ttyACM0





Start SDK


xsdk &




Right-click on the HelloWorld application and select Run As-> Run Configuration.





Select Xilinx C/C++ application (GDB) and then click the New icon (the one with the +).




SDK creates a new Run Configuration and automatically assigns a name to the configuration HelloWorld Debug.

Run the application

Click RUN to initial the processing system (PS) and then load and run the application.








And finally the text "Hello World" is displayed on the terminal screen. Time to celebrate, let's have a beer together. After the beer here is one more example.

Calculate prime numbers

Here is  a simple program that will calculate all prime numbers between 1 and 2000.





Let's create a new application project called PrimeNumbers.





Choose an empty application.





Copy the file PrimeNumbers.c to the src directory.






Refresh, compile and run the application. Here is the result.




One observation, printf command works just fine. Now when we know how to run an application, let's try some of the other templates. Here is the print out from the Peripheral Tests.





Time to take a break






Top   Previous   Next


Posted at 08:15 by svenand

Huse
September 12, 2014   01:41 PM PDT
 
Hi,
Instead of using Gtkterm you can also use a normal ubuntu terminal , runing:

$ sudo apt-get install minicom

$ sudo minicom -D /dev/ttyACM0 -b 115200

with the advantage that you don't need to reboot the terminal everytime the board is rebooted
John Mower
June 27, 2014   07:13 PM PDT
 
Hi, thanks for the great tutorials. I recently started in on the microzed board and could not get the system debugger to work! The xilinx documents showing how to do this use the built in terminal and SDK crashed everytime. I took your example and used CU terminal and the debugger works fine for me now!
Brandon J
June 27, 2014   03:31 PM PDT
 
djtgcfg enum also didn't work for me. I used minicom to monitor uart and it worked great.
Huse
June 25, 2014   11:56 AM PDT
 
Hi Svenand,
Eventhough i still can´t find the device with " djtgcfg enum", i have been able to complete this examples conecting the console to "/dev/ttyUSB0 " port.
Thanks for the great tutorial
svenand
June 18, 2014   08:13 PM PDT
 
Hi Huse,
I have used Vivado 2013.4 and 2014.1. Maybe something has changed in Vivado 2014.2. I will install Vivado 2014.2 and give it a try.
Huse
June 18, 2014   06:12 PM PDT
 
Hej Svenand.
I'm following your tutorial with Vivado 2014.2 and Microzed, but some steps don't come out as yours. The hardware manager locates the board but when i run "djtgcfg enum" it says that no device is found. in gtkterm, there is no ACM0, only ttyS0 to ttyS11.
So eventhough i can run HelloWorld i can't see the result, and SDK alerts me that "Process STDIO not connected to console".
I would truely apreciate a hint.

Regards
robert haris
May 15, 2014   05:54 AM PDT
 
The great and usefull article
 

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