The use of floats/doubles with AVR assembler

So I've decided with the change of the DCM matrix and PI controller for navigation to change fundamentally the code layout with the use of data structures to make more sense of the information been passed on.

I also spend most of list night trying to get my head around whether float division is really such a problem. We'll based on references xxx and xxx it is. Float memory allocation is not a real issue but float division can really boggle down your code to the core of tortoise pace.

So this reference xxx explains that one can find an alternative around this issue which should speed things up quite a bit.The fact of the matter is that float division should really be an exception in any type of code (irrespective of the compiler and host).

A lesson well learnt.

Comments

Setting up the Tarot T4-3D gimbal on the Pixhawk 2.4.8 with Specktrum dx6 Gen2 toggle switch

So i took the challenge of setting up the Tarot gimbal not just for inherent stable video footage but also the flexibility of controlling it from the radio control. However, I encountered quite a few challenges which made me aware that I'm not the one only in this battle . It's quite clear that the setup of the Tarot gimbal using its own software is completely different from how it's been described in the Ardupilot/Arducopter webpage and in mission Planner. In Mission Planner and it's associated site makes one believe that it should be done through software, only to realize that in actual fact the setup is more complex than that. After two evenings of trying various combinations, I realized the getting the pixhawk Aux channels to communicate with the T4 gimbal requires the following steps: - The Pixhawk Pin9 (Aux1) needed to be activated to pass through user-chosen channel from the transmitter. For the Dx6 Gen2 it was the channel 6, which can assigned the ...

The hard climb of innovation

For the last couple of months, our design team has been hard at work at detail development of our drone concept which we hope to make public early 2021. These have been unprecedented times with so many changes within our company: people moving countries, stuck at airports, universities closing and transitioning to online classes and exams; all in the space of one year! Nevertheless, one of the fundamental challenges facing the drone industry in developing countries next year, is how to operate within an environment where shipping of critical parts (amongst other things) has been disrupted due to the covid-19 pandemic. If the most critical items (propellers, batteries, sensors, etc. ) of the system are also associated with the longest lead time, this has a significant impact on the operating cost and service coverage that can be achieved. Unfortunately, there's no easy way of solving this issue except if it was envisioned as part of the development process. But this is seldom the ca...

3 Key Areas for Drone Makers in Africa to Survive

Far too many drone companies have been involved in a journey that has been characterised by a short honeymoon. From an African standpoint, the journey was always delayed. Most African drone companies have been involved in training initiatives , environmental initiatives and consumer journalism . But the bulk of the drone development was performed in Asia , USA and Europe . So it's no surprise that Venture capitalist invested mainly in Asian and American companies. But given the recent reports and the foreclosure of big startups last year , the drone landscape has changed. So a question needs to be asked, what would happen to up-coming drone manufacturing companies based in Africa? Below are three key aspects that we believe drone manufacturers need to take into consideration going to the next 3 to 5 years. Focus on Functionality One of the biggest elements when it comes to drone development is the ability to focus not just on the e...

Search This Blog