Lpc2000

hi

i am new to ARM microcontroller and found this group very good.

i want to make evaluation board from the schematic give at the keil 
website for model MCB2140 (LPC2148)

1) will this schematic work
2) if the above schematic doesn't work please give a schematic

2)does any one has JTAG circuit for the above circuit board (i cant 
afford to buy JTAG from keil)


bye
sudhir

Check out my site http://www.wackyland.net/ARM7kits.html, there is a list 
of ARM 7 development kits, most are reasonably priced, and a lot cheaper 
than Keil's.  (Again, if anyone has anything to add to this site, please 
let me know).

Secondly search the archives of this group for "wiggler clone", or do a 
google search for that.  Recently there has been a fair amount of 
discussion on how to make your own JTAG wiggler-style debugging cable, if 
you are crafty and careful you can make it for next to nothing.

If you are new at this I would *Strongly recommend* that you do NOT try to 
make something yourself as your first project.  Keep in mind that nothing 
and noone is perfect, so there will always be problems.  You will spend far 
longer in the long run trying to figure out "ok, is this problem due to my 
schematic, due to a hardware issue, due to my soldering, due to ...?", 
whereas the < $100 to buy a ready made development kit with software and 
tools and everything is far easier and cheaper in the long run.  For ~ $100 
USD you can easily have a development kit shipped to you, buy a wiggler 
clone and have everything that you need to start development the day that 
you receive the hardware.

Doing this yourself will probably take you (conservatively) at least 50 
hours of development time, anywhere up to 200 hours.  Unless your time is 
worth less than $1/hr, it's better to just buy something.

-- Sean

At 02:44 PM 1/22/2006, you wrote:

>hi
>
>i am new to ARM microcontroller and found this group very good.
>
>i want to make evaluation board from the schematic give at the keil
>website for model MCB2140 (LPC2148)
>
>1) will this schematic work
>2) if the above schematic doesn't work please give a schematic
>
>2)does any one has JTAG circuit for the above circuit board (i cant
>afford to buy JTAG from keil)
>
>
>bye
>sudhir

If Keil has a schematic and is already selling development boards for
it, I would be very surprised if it doesn't work.

I'm working on a cheap DIY parallel port JTAG debugger circuit. I
haven't built it yet to test it out, but it should work (it's based on
earlier DIY wiggler clones that people have working):

http://www.k9spud.com/jtag/

You should also check out Jim Lynch's tutorial on setting up a GNU
toolchain for programming and debugging LPC2xxx chips. It's very helpful:

http://www.olimex.com/dev/pdf/ARM%20Cross%20Development%20with%20Eclipse%20version%203.pdf

--- In lpc2000@yahoogroups.com, "katta_sudhir" <katta_sudhir@y...> wrote:

>
> hi
> 
> i am new to ARM microcontroller and found this group very good.
> 
> i want to make evaluation board from the schematic give at the keil 
> website for model MCB2140 (LPC2148)
> 
> 1) will this schematic work
> 2) if the above schematic doesn't work please give a schematic
> 
> 2)does any one has JTAG circuit for the above circuit board (i cant 
> afford to buy JTAG from keil)
> 
> 
> bye
> sudhir
>