"I've just released a new version of PicoC:
http://code.google.com/p/picoc/"
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Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Jack, I fixed a bug in floating point constants. You may want to update."
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Thanks for the bug report. That's fixed now."
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""I've fixed the "missing comma bug". Do an update to get the latest version. I think this addresses all the bugs you found. Please let me know about any new bugs you find."
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Jack, you said "a floating point trig library would be nice". I've just added one. It supports: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, exp, fabs, log, log10, pow and sqrt from your native maths library. You'll need to…"
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Jack, I've checked in some fixes to floating point which should sort out the problems you were having with it. Let me know if you have any more problems."
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Thanks Howard. Strange. When I run "printf("test %d\n" 12);" I see:
testcomma.c:1: value not expected here
which is as it should be. This is under cygwin - but it might be a platform-dependent problem so I'll run it on my…"
Zik commented on Jack Crossfire's blog post Picoc notes or "don't use assert in autopilots""Yeah just looking at floating point right now. It's got borked at some point. I'll let you know when it's fixed.
Do you have an example of the comma problem? I haven't been able to reproduce it."
Profile Information
- About Me:
- I'm developing an open source autopilot for hobbyist UAVs. It's called "Flying Fox" and it's designed to be small and powerful while being reasonably cheap. This isn't a commercial project - it's an open source effort.
- Hometown:
- Melbourne, Australia
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Flying Fox autopilot
Posted on May 5, 2009 at 11:02pm 28 Comments 0 Likes
I've been working on an open source autopilot for a while now. It's not finished yet but it's getting close. The board is quite small - about the size of an ESC - and weighs 10g.
Features:
* Plugs directly into any R/C receiver - up to nine control channels.
* Can control up to ten servos.
* Combined GPS/IR leveler board makes installation easy.
* Barometric altimeter.
* microSD card for flight plans and… Continue
Features:
* Plugs directly into any R/C receiver - up to nine control channels.
* Can control up to ten servos.
* Combined GPS/IR leveler board makes installation easy.
* Barometric altimeter.
* microSD card for flight plans and… Continue
Comment Wall (2 comments)
- At 10:29am on May 17, 2009,
Noth666 said… - Hi Zik,
I have a question for you, if I make a modified version of this(single board with IMU using different chips), would you mind if I make and sell some boards?
Of course I would release both the HW and SW as open source also.
I am setting up a small company to be able to push out gear to people who do not have the tools/knowledge to put the hardware together themselves.
We do not aim to make money off this, just to cover the costs for making the hardware and tools used.
We are just beginning with this now on a very small scale, everything is made by hand ;-). Feel free to check out our very basic website: http://www.phoenixflightsystems.com
- At 9:27pm on May 25, 2009,
ModeratorJack Crossfire said… - After playing with picoc, it became clear that floating point isn't done yet. It's mostly integrated in VicaCopter but needs floating point to store any latitude & longitude. Also, the software memory management doesn't work in 64 bit so we have USE_MALLOC_HEAP enabled.
C language scripting for UAV's would be a big win so hopefully you'll keep working on this library.
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