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new zealand chip design industry
If you are working in the area of electronics design (RF, a little bit of FPGA/DSP, digital circuit...), Tait Electronics in Christchurch (radio comm gear), Navman largely in Auckland (GPS/ marine electronics) are the biggest ones. They have about 100-200...
Hi everyone,
I am thinking about building a pedometer (I am mainly doing stepping... preparing for tramping trip...). The most obvious choice is accelerometer... But, it is likely be an overkill. Have you got any good suggestion that can be used as makeshift pedometer sensor... How about...
use protoboard for smt
I have just come across this page that describes the progressive wiring technique.
hxxp://elm-chan.org/docs/wire/wiring_e.html
The author managed to build an MP3 player using a normal prototype board, with mostly SMT parts, some ICs are as complex as 48 LQFP. The trick...
Just make me think of another use of something like vmware. My labmate suddenly wanted to write an OS in his PC one day (just for the sake of it)... You know programming those protected mode etc are very prompt to crash... A VM (vmware) really saved his day.
I can read Chinese, but, not a windows user... So, some of the terms may not be accurate.... Here is hte translated manual removal instruction.
1) Make the system to show all the hidden system files
MyComputer->Tools->Folder Options. Click the "view" tab.
Clear "Hide file extensions for...
difference between clock and oscillator
h**p://www.ieee-uffc.org/freqcontrol/quartz/vig/vigtypes.htm
Take a note on the, for example, Pierce circuit. The crystal and capacitor arrangement is the same as how we normally connect to say, a PIC or AVR... The rest of the circuit as been mentioned...
I am reading some DSP textbook stuff, but, I only have a Spartan III -300k gate board with me... I went to opencores.org to see if I can download any functional DSP. All I can find was microcontrollers (8-bit up to early stage 64bit!!!), but no DSP core..
I wonder why that's the case. Is...
s3c440b
I have access to a S3C440B ARM7 evaluation board. It has a LCD controller interface, which supports color/gray/mono LCD panel of 160x160 to 640x480 pixels in 4bit dual/ 4bit single/ 8bit single scan modes.
I am planning to add a LCD panel to it.... However, I don't want to spend an...
Interference is a very major problem. In fact, many trials in US had to be cut short due to this. In US, the amateur radio operators were the bunch that most affected. In the developing country, this part of spectrum can be the vital link between the villages. So double check before going...
LM7905 is yet another linear regulator. You still need a negative voltage to start with. Also, note the voltage drop of these device is not insignificant. In general, use a +7V unregulated supply if you are going to make +5V regulated with 7805; -7V unregulated to make -5V regulated.
There...
Re: Fresnel Zone? what is it
The phenomenon explains why sometimes even line-of-sight itself is not sufficient... The wave reflected by some obstacles can be out-of-phase at RX. Fresnel provided a means to calculate how out of phase the bumps (deflections) between the transmission source (TX)...
Re: C or Matlab?
Not many programs or person can beat Matlab in prototyping algorithms that involves a lot of calculations. Its library is damn extensive. It is a good starting point anyhow.
However, do allocate more spare time if you intended to use the matlab - c++ compiler. I don't...
Re: DSP evaluation board
The avnet promo is now a "lucky" draw for a free VisualDSP suite... Not the board itself... Also, if you are not living in the States, you are out of luck.
For cheap DSP board, it is the cheapest I found so far.... Kind of a clone of the Analog 2181 EVB... But...
Someone has spotted a cheap surecom-net router. It sells for less
than $50.
**broken link removed**
It has 4MB of SDRAM, 1MB of Flash... It has a JTAG port on board as
well. We only need to solder a connector in. Probably, the cheapest
ARM evaluation board around the town... However, it...
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