techie mj wrote:
> Hi All,
>
> For my project work(Packet filter) we are planning to buy a used
> WindRiver
> EST SBC8260 board
The board you purchase should as closely as possible resemble your
actual product/target.
Alot depends on what you are actually trying to accomplish.
If you are working towards a manufacturing a custom piece of
hardware of your application,
Then similarity of hardware is of high importance.
And it may be likely that you have to create or buy a BSP for your
taget - particularly if
you are supporting multiple OS's.
If you are doing fairly generic work and the target is the OS's, not
the specific hardware,
then find a board that is already supported by all the OS's you are
after.
Before Pico had any of their boards available, I used a Mac Lombard
powerbook I purchased on
eBay as a target. It was cheap, and runs Linux surprisingly well.
> I am new to this. So i request everyone to suggest me what i should
> look for
> while buying the board.My development environment will be LINUX may be
> vxworks in future.
>
> 1) My dealer is providing only the Board. ( 4MB-SIMM flash,16MB-SDRAM
> DIMM,
> 8kb- 8 bit EEPROM, 2MB- 8 bit Flash, 4MB SDRAM (Local Bus), RS-232,
> 10/100
> Base-TX Ethernet)
> Is it enough -or whether i need any extra addon cards
Again it depends on what you are trying to accomplish.
The first "embedded" system I worked on had 256 bytes of memory, had
a 1Mhz clock,
and toggle switches.
The more minimal the hardware in resources and performance the more
difficult the
development process tends to be.
>
> 2) Do i need to buy JTAG debugger or any
> Is it possible to debug the code without JTAG/BDM
Same as hardware and resources. I do not have a BDM. Many on this
list would think I am crazy.
I have worked with very powerful debugging tools - but very very
often, all they do is overload you with data.
On occasion they can be very convenient. But most of the time the
FIRST thing I do starting with new hardware
is find some way of generating output - usually in the least number
of assembler instructions possible.
One is really really nice - give me an LED and a bit to flash it and
I can debug anything.
I needed little more than a virtual LED and printf's to get Linux
working on my target.
But I had issues with GreenHills Integrity that required both a JTAG
as well as a minimal handwritten software debugger.
>
> 3) what are the cables i need
>
> 4) Can i directly download the bootcode from my PC to the Board through
> ethernet/serial port
>
> 5) Can anyone provide me the user manual for the above board. any
> weblinks
> are also good
>
> 6) any other points
>
> Thanks
> mjose
>
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--
Dave Lynch DLA Systems
Software Development: Embedded Linux
717.627.3770 dhlii at dlasys.net http://www.dlasys.net
fax: 1.253.369.9244 Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too numerous to list.
"Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
Albert Einstein