I'll add my $0.02 here... I used Flash Magic (to get started) on the
LPC -2378 board. It uses the serial connection to the ISP at up to
115200 bps (reasonably fast). It's free at
http://www.flashmagictool.com (if you are running under windows).
Anyway, it's a simple way to get started
Quoting Bdale Garbee bd...@gag.com:
ARGH! Yes. Thank you for spotting that.
No problem...
About 2.2 nC at our operating point.
...
I don't think it's necessary. But after talking to Keith, we'll add
the footprints. We've got the space and I've got to rework that part
of the board
Here we go again...
if(OS != Linux)
CAN = Easy;
In one respect, I agree with Sarah's statement in that the only active
node in an FC failure is the recovery node. Nothing else really matters.
That said, if you *must* have some sort of non-usb back channel
communication, CAN is the way
I have an exam Wednesday, so I won't be available until Thursday. As
for times, the later the better, but 5:00 will likely work for me.
Let's just use my code and my board. It just works, and that's what
we need. We need a way to get power into the chamber, and CAN out.
You'll get the data
/category/calculators/pcb/
look down the list. There are other handy calcs for power dissipation as well.
For the second one, Check with your PCB Fab house and see what they
are capable of doing. I generally add a little insurance by *not*
going all the way down to the minimum trace/space
That was the motor chuffing, we think.
Yeah, I don't think it's possible to hear a sonic boom if you can
already hear the engine (though the chuff sound was impressive). My
understanding is that a sonic 'boom' comes from the fact that you hear
no sound, then all of the sound at once
Just as an FYI, I checked the rules for the BALLS launch regarding the
use of a kerosene - nitrous oxide rocket motor after our discussion on
Tuesday:
...Liquid Engines MUST request written approval from the Tripoli
Board of Directors.
They don't say they are illegal, but rather hint
While investigating some analog to digital converters for an IMU
project I'm working on, I settled on a TI ADS1278. One reason for
using this ADC is that it has such fine resolution that I may be able
to eliminate the amplifiers on the input for most inertial sensors!
This ADC has
Andrew and Tim,
I'm working up a schematic for an IMU and I have a couple of questions
you might be able to answer...
First, Analog devices finally came out with a 3 axis accelerometer
with decent range (8/2009). The ADXL326 has 3 axis +-16 g's. Noise
spec is comparable but a bit lower
.
In general, it probably doesn't matter what we launch, as long as we
launch *something*. I think we could make any of these work, just some
may take years longer than others.
Wow, that *IS* a nice module. And yeah, we're kinda stuck with launching
a PowerPC because of our Linux on POWER grant
is a 25-50Hz *control* bandwidth) as we
proved when considering actuator force would destroy the fins, yet I
think I can easily make the case that it must be faster than 10Hz
(which is a 0.25-0.50Hz *control* bandwidth) due to the fast roll axis
dynamics.
So, between 10 and 1000 loops per
I don't think that's correct. Bit 25 *will* be cleared, but the |= won't
help. The 'SET' registers will only set the GPIO bits. I think they are
always read back as '0', or at least they revert to '0' as soon as they have
modified the output latch. Read the user manual for read values on GPIO SET
On Tue, Oct 25, 2011 at 1:06 PM, Naga Pinjala pinja...@yahoo.com wrote:
No, I meant for turning off that output latch.
Sorry, I'm lost.
What are you trying to do?
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http
,Manual,Online%20Training,Specification,Utility,FAQ,Installation,Software%20API,Software%20API%20Manual
then click Driver(3).
They have Linux (your OS) and QNX (my OS). I don't remember if I tested
them or not, but I'm sure they work. This card seems well supported.
I just pulled the linux driver
module?
On 07/04/2013 10:23 PM, Nathan Bergey wrote:
There is no data from the launch (T-0 to apogee). The last logfile
starts *after* we're already on parachutes.
I suspect we rebooted on motor ignition.
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To the GPS folks, there is an interesting event that will occur this week
starting in 15 minutes or so, and going on sporadically this week/weekend.
There is a planned GPS outage over a broad area detailed here:
https://www.faasafety.gov/files/notices/2015/Jun/NSAWC_15-01_GPS_Flight_Advisory.pdf
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