Forums

Inexpensive LPC21xx prototyping board?

Started by Owen Mooney February 29, 2004
Hi Robert,

I have the evaluation copy of crossworks for a uni project (I will soon buy the real version) I also have the Olimex Wriggler clone and the Olimex evaluation board (LPC-P1).

Hey ! It just works. I spend about 4 hours to move from fiddling about to getting into building my application. The only two things I got caught on are:
1. Remember to move the jumper over to debug on the LPC-P1 to enable the JTAG.
2. A straight serial connection to the PC from the serial port wont work as the handshaking lines
disable the output from the PC. Use a three wire lead with rts looped to cts and dtr looped to dsr (in the normal manner).

Highlights of this combination are:
One button compile, one button run and debug (break points, watches etc).
Runs from flash or ram with very simple change in the project.
Runs arm or thumb with very simple change in the project.
The compile - run and test cycle is as good as working in a PC (eg C++ builder/delphi products)
Tool tip evaluation of integers show the value in decimal, hex and binary (that's kewl)
All the port lines are avaiable for use in the olimex.

I like the crossworks. I don't want to know about command line processing (public domain stuff). I believe the Hitech compiler is not well integrated with the debugger. All this is too much hassle. I don't know about the other tools. Hey! if your quick you may do the whole of your project with the evaluation compiler (No I didn' say that! No - really I would never incourage that! Please - not guilty your honour).

Today I'm writing a pulse analysis program

I can send you a sample of code to get going with this combination. Olimex will provide you with some test code if you hassle them. I hurried him up by threatening a writeup in this group.

This is the write up !!

I don't know how the cross works compare with other compilers. I would like to suggest this forum could evaluate that. Maybe we could gather some code together and different people could try them on different compliers. We could post the comparison.

Owen Mooney Message: 3
Date: Sun, 28 Mar 2004 17:38:45 -0000
From: "Robert George" <>
Subject: Inexpensive LPC21xx prototyping board?

I'm looking for a low-budget LPC21xx prototyping system (i.e.,
prototype board and tool chain) as an experimental H-Bridge motor
controller for a home robotics project.

Has anyone tried the Olimex LPX2106 prototyping board?

http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&cats&

Does this board work OK with the Macraigor GNU tool chain?

Olimex also has a $20 Wiggler clone which seems to work with the
Macraigor C Compiler:

http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&catt&

Are there any other inexpensive ARM7 eval boards I should look at?

Thanks!

Robert


An Engineer's Guide to the LPC2100 Series

I'm looking for a low-budget LPC21xx prototyping system (i.e.,
prototype board and tool chain) as an experimental H-Bridge motor
controller for a home robotics project.

Has anyone tried the Olimex LPX2106 prototyping board?

http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&cats&

Does this board work OK with the Macraigor GNU tool chain?

Olimex also has a $20 Wiggler clone which seems to work with the
Macraigor C Compiler:

http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&catt&

Are there any other inexpensive ARM7 eval boards I should look at?

Thanks!

Robert




----- Original Message -----
From: "Robert George" <>
To: <>
Sent: Sunday, March 28, 2004 6:38 PM
Subject: [lpc2000] Inexpensive LPC21xx prototyping board? > I'm looking for a low-budget LPC21xx prototyping system (i.e.,
> prototype board and tool chain) as an experimental H-Bridge motor
> controller for a home robotics project.
>
> Has anyone tried the Olimex LPX2106 prototyping board?
>
> http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&cats&
>
> Does this board work OK with the Macraigor GNU tool chain?
>
> Olimex also has a $20 Wiggler clone which seems to work with the
> Macraigor C Compiler:
>
> http://www.sparkfun.com/shop/index.php?shop=1&cartQ130&catt&
>
> Are there any other inexpensive ARM7 eval boards I should look at?

If you want to build your own I've got a few PCBs left:

http://webspace.webring.com/people/jl/leon_heller//lpc2104.html

I can also supply LPC2106s and '2104s.

Leon



At 05:38 PM 3/28/04 +0000, you wrote:
>I'm looking for a low-budget LPC21xx prototyping system (i.e.,
>prototype board and tool chain) as an experimental H-Bridge motor
>controller for a home robotics project.

>Are there any other inexpensive ARM7 eval boards I should look at?

Well, you could look at ours (www.aeolusdevelopment.com). :) Also take a
look at the ARM microcontroller Wiki
(http://www.open-research.org.uk/ARMuC/index.cgi?Development_Boards) and
the files and links pages of this group.

Robert " 'Freedom' has no meaning of itself. There are always restrictions,
be they legal, genetic, or physical. If you don't believe me, try to
chew a radio signal. "

Kelvin Throop, III