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[aprssig] Embeded LINUX display

Scott Miller scott at opentrac.org
Fri Feb 22 23:44:29 UTC 2008


If that's all you need, check out BerkeleyDB.  BDB will associate 
key/value pairs, and it can run entirely in RAM.  You could use the 
object name as the key and the position as the value.  It's NOT a SQL 
database, so you can't do joins or anything, but it's a fast way to 
manage large lists of items.

Scott
N1VG

Andrew Rich wrote:
> I can do away with the need for MySQL positions by just having flat files.
> 
> The filename could contain the object and the contents could store the 
> position.
> 
> A groomer script would get rid of old files 
> 
> 
> 
> 
> 
> On Saturday 23 February 2008 07:09:35 Michael Miller wrote:
>> I think it really depends on how much you are willing to spend $$ and
>> what your definition of embedded is.
>>
>> >  My question is about embeded LINUX devices.
>>
>> Are you talking about a product like the Nokia N800 or a OEM Board?
>>
>> >  They say they run LINUX, but what does this mean ?
>>
>> In the embedded Linux space usually you have a board with a processor
>> ( ARM, PowerPC, Intel or MIPS ) running 50 to 500 Mhz low power ( runs
>> off DC 12 VDC to 15 VDC).  Again usually these boards run a stripped
>> down Linux Kernel with only the modules and hardware / device driver
>> support need for your board.  You find some boards running UcLinux or
>> BusyBox depending on the OEM board vendor support options for Linux.
>>
>> >  Do they have the ability to run perl, MySQL and GD ?
>>
>> It depends on your toolchains for the embedded linux distribution you
>> are using.  If your using a distribution that uses glibc  then you can
>> run MySQL but due to limited memory and processor speed it is
>> unfeasible IMHO.  Have you looked at Sqlite for a SQL database engine?
>>
>> >  Here is a sample of what I mean
>> >
>> >  http://tech-software.net/cdti.htm
>>
>> That is interesting what kind of receiver are you using and how are
>> you connecting it to your computer?  I.E. USB RS-232 serial?
>>
>> Mike Miller
>>
>> WL7CSL
>>
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> 
> 
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