Lennart

>Lennart Bonnevier
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So far Lennart Bonnevier has created 41 blog entries.

Tracing exceptions in Keil RTX5

When debugging or profiling your firmware, it is often important to trace Interrupt Service Routines (ISRs) such as timer interrupts or interrupts from communication interfaces. However, using a classic ”printf” call is typically not an option since it may increase the execution time of the ISR by orders of magnitude. The integrated ”exception trace” support [...]

2018-06-25T18:21:32+00:00 June 25th, 2018|Categories: Blog|

We are Moving

Tomorrow Friday is a special day here at Percepio HQ – we're moving offices. We are not moving very far, the new office is a ten-minute walk from our current one, but it is absolutely a step up for the company. We'll have our own offices with plenty of space to grow (and we are [...]

2018-06-02T23:36:02+00:00 May 31st, 2018|Categories: Blog|

Tracing a drone flight

Percepio's Senior Drone Builder and Support Engineer Niclas Lindblom with his Embedded World drone. We knew we had to have something special. We knew we were going to show Tracealyzer 4 at Embedded World 2018, and we wanted the world to take notice – it was after all the largest improvement in at [...]

2018-06-04T18:07:22+00:00 May 16th, 2018|Categories: Blog|

Tracealyzer v4.1 – Micrium and Arm ITM support

Percepio has released Tracealyzer version 4.1 with support for Micrium µC/OS-III. We have also added support for RTOS tracing via Arm's ITM interface (Instrumentation Trace Macrocell), that allows very fast streaming of software trace data with low overhead. “Tracealyzer 4 is such a massive improvement over previous versions and as we have been working closely [...]

2018-05-09T11:39:30+00:00 May 8th, 2018|Categories: Blog|

GDPR: Protecting Your Personal Data

You may have heard about the General Data Protection Regulation, better known as GDPR, which is the new regulatory framework for managing personal data of European Union citizens; it comes into force on 25 May, 2018. Since Percepio is based in Sweden, which is a member of the European Union, and have a lot of [...]

2018-06-04T18:04:43+00:00 April 27th, 2018|Categories: Blog|

Let Tracealyzer show you the big picture

When you open a trace in Tracealyzer, it usually opens to the vertical timeline. This view, which shows all activity in the system, is in many ways the core of Tracealyzer and most of the other views link back to the timeline, but with its massive amount of information it is not always the best [...]

2018-04-19T11:13:19+00:00 April 19th, 2018|Categories: Blog|

Learn RTOS Programming in Four Days

Percepio's European training partner MicroConsult in Munich, Germany, offers an extensive 4-day course in RTOS architecture and programming. The course, aptly named "RTOS Mechanisms and their Application in Runtime Architectures for Embedded and Real-time Systems", covers a broad range of topics. General Introduction: Real-time Operating System Process/Thread/Task Management Interrupt Management Time Management Coordination Mechanisms: Synchronization [...]

2018-04-12T14:34:13+00:00 April 12th, 2018|Categories: Events|

Find the Tracealyzer license that suits you

This spring has seen the release of Tracealyzer 4, Percepio's most significant update to Tracealyzer so far, but that is not all. We have also simplified our licensing options and introduced some new ones, including an all-inclusive subscription license that allows you to use Tracealyzer with all of our supported operating systems. No matter what [...]

2018-04-13T15:10:50+00:00 April 11th, 2018|Categories: Blog, Tzfeed|

Taking on the Top Ten Bugs

"Top Ten" is a well-tested catch phrase that can be attached to restaurants in London, high buildings over the world and, well, just about anything. And rest assured there's also a list of the Top Ten Bugs in Firmware. Written by industry veteran Michael Barr, former editor-in-chief of Embedded Systems Programming magazine and author of [...]

2018-04-13T15:07:40+00:00 March 27th, 2018|Categories: Blog, Tzfeed|

Tracealyzer 4 is here

We have talked about it for six months, and worked on it for much longer than that, but today it is finally here - Tracealyzer 4! Starting today, you can download the new version of Percepio's powerful visualization tool and try it out for yourself. If you use Tracealyzer today, the first thing you will [...]

2018-03-15T07:08:35+00:00 March 15th, 2018|Categories: Blog|

Percepio Announces Tracealyzer 4 With a New User Interface and Stunning Live Views

Västerås, Sweden, 20th February 2018   * * *   Percepio announces a major update of Tracealyzer, its industry-leading tool for visual software tracing of RTOS-based embedded systems and IoT devices. Tracealyzer version 4 has been redesigned from the bottom up, from the data processing backend which is now up to 4x faster, to a [...]

2018-03-13T15:23:48+00:00 February 20th, 2018|Categories: Press|

Using Tracealyzer with Cypress PSoC devices

In collaboration with Cypress Semiconductors, Percepio Tracealyzer® now supports Cypress PSoC® MCUs, including the hardware profiler unit in the new PSoC® 6 family. Percepio Application Note PA-019 describes in detail how to get started with Tracealyzer on Cypress PSoC® MCUs and Cypress PSoC Creator. The example is for PSoC 6, Cypress' most recent MCU family, but except for [...]

2018-02-16T11:35:40+00:00 February 16th, 2018|Categories: Blog|

Webinar: Designing and Debugging RTOS based IoT Applications

Embedded evangelist Jacob Beningo will present a free webinar on designing and debugging IoT applications. The webinar features topics like advanced RTOS application design techniques, event chaining and setting up an embedded connection to Amazon Web Services (AWS). Jacob will also use Percepio Tracealyzer to show how to trace an IoT application to not just understand how [...]

2018-02-16T23:17:11+00:00 February 5th, 2018|Categories: Blog, Events, Tzfeed|

NeoMore hosts two free Tracealyzer webinars

Percepio's French distributor NeoMore will host two free webinars in February about RTOS tracing with Percepio Tracealyzer. Tuesday, 6 February 10.00 – Tracealyzer for Keil RTX5 (register) Thursday, 8 February 10.00 – Tracealyzer for FreeRTOS (register) Both webinars will be presented in the French language.

2018-03-13T10:51:51+00:00 January 29th, 2018|Categories: Events|

Happy Winter Holidays from Percepio

It's that time of year again – late December in Sweden means snow (mostly) and darkness (always), but it also means that the Christmas holiday is coming. Most of our staff will go on a well-deserved vacation break next week, so expect that it may take a little longer than usual for us to respond to [...]

2017-12-19T13:05:51+00:00 December 19th, 2017|Categories: Blog|

A Month of Good News

November was a good month for Percepio and Tracealyzer. We saw record sales, a lot of interest in the Tracealyzer 4 preview videos and everything culminated on the 29th with the release of Tracealyzer v3.3 supporting Amazon FreeRTOS, just released by Amazon Web Services along with several new IoT offerings. We believe Amazon Web Services has taken [...]

2017-12-06T13:58:46+00:00 December 6th, 2017|Categories: Blog|

Tracealyzer v3.3 fully supports Amazon FreeRTOS

Amazon Web Services launched their own RTOS yesterday, as part of a major improvement of its IoT offerings. We're happy to announce that Tracealyzer version 3.3, which we released yesterday, fully supports Amazon FreeRTOS, the new IoT microcontroller operating system from Amazon Web Services (AWS). AWS and Percepio have collaborated to provide Tracealyzer support for [...]

2017-11-30T12:16:32+00:00 November 30th, 2017|Categories: Blog|

Tracealyzer 4: see more with Intervals and State Graphs

This is our third preview video of Tracealyzer 4, due out early next year, and this time we focus on two entirely new features: State Graphs and Intervals. Both features allow you to customize the visualization and analysis for your own system and the issue at hand. State Graphs can be created automatically from your trace, [...]

2018-02-25T20:12:05+00:00 November 23rd, 2017|Categories: Blog|

Tracealyzer 4 lets you see network activity

Welcome to a second glimpse of Tracealyzer 4, showing how network activity can be visualized together with the RTOS events. This way, developers of connected IoT systems can get a wider perspective of their system's real-time behavior. https://www.youtube.com/watch?v=K1O4AE4TEbE In this brief example we display events from a TCP/IP stack, but the same technique can be used [...]

2017-11-09T13:11:13+00:00 November 9th, 2017|Categories: Blog|

Welcome to a first look at Tracealyzer 4

A completely revamped user interface and a much improved live view are two of the most prominent features of the upcoming Tracealyzer 4, which we showed for the first time at Arm TechCon last week. If you weren't there, you can still get a feel for the new product through a short video we have put together. [...]

2017-11-02T15:42:00+00:00 November 2nd, 2017|Categories: Blog|

RTOS Debugging: Everybody wants the fork

Deadlock is a well-known phenomenon even outside the embedded world. For a general description of deadlock, see this article; it is far better than anything I could ever hope to write. But I digress – back to deadlocks in RTOS-related programming. A clear indication that you may have a deadlock problem is when multiple tasks [...]

2018-02-25T20:00:48+00:00 October 30th, 2017|Categories: Blog, Tzfeed|

Praise for Tracealyzer 4

Percepio's stand at ArmTechCon. ArmTechCon 2017 is over and we have packed up and left. We spent two days talking to users and meeting partners, and we showed the upcoming Tracealyzer version 4 for the first time. We will have more to say about both Tracealyzer 4 and ArmTechCon in the coming weeks, but there's one little [...]

2017-10-27T10:51:51+00:00 October 27th, 2017|Categories: Blog|Tags: , , |

RTOS Debugging: When the important stuff has to wait

Priority inversion at work – the high-priority (red) task is blocked by lower priority tasks. The central idea underlying an RTOS with a fixed-priority scheduler is that a high-priority task should be scheduled ahead of one with lower priority. If necessary, the RTOS can even pre-empt the running task, forcing it to yield the CPU to [...]

2018-02-25T20:01:49+00:00 October 25th, 2017|Categories: Blog, Tzfeed|

Hands-on with Tracealyzer in Seoul

Our Korean distributor Dioiz is running a hands-on seminar on embedded development with, among other tools, Tracealyzer this week. It is sold out by now, but there will be a second event on November 22 and Dioiz has let us know that applications are welcome. More info here – note though that both the invitation and the [...]

2017-10-23T19:59:29+00:00 October 23rd, 2017|Categories: Events|

Percepio appoints first regional Sales Manager

Industry veteran Cliff Wood today joins Percepio as Sales Manager for USA and South America. – Cliff has been working with Percepio informally for some time and many of our U.S. customers may have met him, but today we are happy to welcome him as Percepio’s first regional Sales Manager, says Percepio CEO Johan Kraft. Cliff [...]

2017-10-18T11:05:56+00:00 October 18th, 2017|Categories: Events|

Meet Percepio at Arm TechCon 2017

The ”theme” of this year’s Arm TechCon conference is of course … Arm. Over 4000 embedded systems specialists are expected to descend upon Santa Clara, California, in two weeks to discuss all things Arm, from silicon design and software development to computer vision and the Internet of Things. Among these enthusiasts is of course a [...]

2017-10-12T15:11:09+00:00 October 12th, 2017|Categories: Events|Tags: , , , , , |

Percepio announces Tracealyzer for FreeRTOS v3.2

Tracealyzer v3.2 adds powerful filtering functions to reduce the amount of data that must be sent to the monitoring host computer. This makes Tracealyzer applicable to a wider range of development setups. Today we are happy to present version 3.2 of Tracealyzer for FreeRTOS. The new version is available for download from percepio.com/download/ immediately. [...]

2018-03-13T10:50:32+00:00 September 26th, 2017|Categories: Blog|

RTOS debugging: Dealing with timing issues

There is no doubt a learning curve when you begin using a real-time operating system (RTOS) in your development. You will work at a higher abstraction level, using more or less parallel tasks rather than just subroutines, and you will need to consider how your tasks shall share data and the processor time with each [...]

2018-02-25T20:03:22+00:00 September 20th, 2017|Categories: Blog, Tzfeed|Tags: , , |

Tracealyzer Makers Edition is here

Photo: Sara Arnald, CC-BY Have you ever wanted to debug your hobby MCU project with a tracing tool, but felt that you couldn't afford a pro tool like Percepio Tracealyzer? Well, now you can! From now till the end of this year, you can purchase a non-commercial Tracealyzer Makers Edition license at the heavily discounted price [...]

2017-09-13T10:48:21+00:00 September 13th, 2017|Categories: Blog|Tags: , , |

Submit your trace – get a $25 gift card

A research group at Mälardalen University here in Västerås, Sweden, is investigating how RTOS trace tools like Percepio Tracealyzer can be extended for testing purposes and automatically detect bugs related to concurrency and timing. To validate their research, they need real-world bug examples. We at Percepio want to help them obtain RTOS traces, recorded with Tracealyzer, [...]

2017-09-11T13:07:16+00:00 September 7th, 2017|Categories: Blog|Tags: , , , |

On the Horizon: two embedded conferences

  Embedded Conference Scandinavia, ECS, takes place on 7–8 November, 2017 at Kistamässan in Stockholm, Sweden. Last year’s conference attracted just under 2,000 delegates so ECS now claims to be the largest embedded conference in Europe. The conference program is still in flux but the organizers have announced the first keynote speaker: Maarten Struys, Account [...]

2017-09-01T15:12:52+00:00 August 31st, 2017|Categories: Blog|Tags: , , , |

ARC Summit: Common RTOS-related bugs – how to avoid and detect

Synopsys ARC Processor Summit is a free one-day event where you can pick from any of 25+ technical seminars on embedded development and electronic design. This year’s Summit takes place on September 26 and Percepio will be there discussing how to catch bugs in RTOS-based programming. Once again we are represented on the stage by [...]

2017-08-10T15:07:26+00:00 August 8th, 2017|Categories: Blog, Events|Tags: , , , |

Microchip Masters: Understanding and Meeting real-time constraints in MPLAB Harmony RTOS applications

Percepio’s Field Application Engineer Niclas Lindblom will talk about using Percepio Tracealyzer to debug common timing issues in RTOS applications at the Microchip MASTERs tech conference in the U.S. in August. Niclas shares a four-hour class with Darren Wenn, Global Group Leader for embedded development at Microchip, and they will focus on the combination of [...]

2018-04-25T10:10:49+00:00 July 13th, 2017|Categories: Events|Tags: , , , |

Microchip Masters: Understanding and Meeting real-time constraints in MPLAB Harmony RTOS applications (European edition)

Percepio’s Field Application Engineer Niclas Lindblom will talk about using Percepio Tracealyzer to debug common timing issues in RTOS applications at the Microchip MASTERs tech conference in Berlin in September. Niclas shares a four-hour class with Darren Wenn, Global Group Leader for embedded development at Microchip, and they will focus on the combination of Tracealyzer [...]

2018-04-25T10:10:50+00:00 July 13th, 2017|Categories: Events|Tags: , , , |

A Busy Summer Ahead

Summer is finally approaching here in Sweden. Last Friday we celebrated Midsummer, and the coming weeks will be a bit slower than usual as most Swedes check out from work and enjoy their summer vacation. But only a bit slower, mind you: the lights will stay on at Percepio HQ as we work on new [...]

2017-06-30T13:26:06+00:00 June 30th, 2017|Categories: Blog|Tags: , , |

The Running Snail car team is back for another season

You may have heard about "Running Snail", a team of German university students building an electric race car as a school project – we blogged about them last year. Now they're at it again, they will build a new car for the 2017/18 competitive season, and of course Percepio will continue to sponsor the team with licenses [...]

2017-06-14T10:24:21+00:00 June 14th, 2017|Categories: Blog|Tags: , , , , |