On Sun, 30 Nov 2008 21:57:41 -0600
Kipton Moravec [EMAIL PROTECTED] wrote:
I probably would have gone with the Atmel Data Flash as opposed to the
memory chips you are using. (But it uses SPI Interface.) For example:
http://www.atmel.com/dyn/resources/prod_documents/doc3500.pdf
As far as
On Mon, 2008-12-01 at 23:05 +0100, Levente Kovacs wrote:
Thanks. I replaced the cap, and it has the same effect. However, one of my
friend pointed out, that the regulator I am using maintains its switching
frequency as a function of the output current. The consumption is low.
If that is the
Hi,
In the last few weeks, I've been busy designing and bulding a temperature
sensor/logger. The second version is out and can be found here.
http://logonex.eu/~leva/projects/temp_collector/
There are a few pictures of it.
http://logonex.eu/gallery/tns/1043.html
There is no firmware yet, I
I probably would have gone with the Atmel Data Flash as opposed to the
memory chips you are using. (But it uses SPI Interface.) For example:
http://www.atmel.com/dyn/resources/prod_documents/doc3500.pdf
As far as the Power Supply goes, replace the 470 pF cap. Either you
accidentally put the
The other problem may be the C101 470 uF capacitor. Usually
switchers need very low ESR capacitors in this position. So two
electrolytic in parallel, or a Low ESR Tant. and add a ceramic 10 uF
and 1 uF help ensure a low ESR with the big cap.
One other trick is to use higher *voltage* caps,
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