freely available debugger/programmer

Started by Jay Dagenais September 3, 2006
Thanks for the response! It was great to finally get something feasible! So, just to recap, I am able to use my 68EVB912B32 dev board as a debugger and also to flash code into a target? What are the connections I am going to have ot make here? Is there somewhere that I can find some examples or an appnote to read about it? Again thans for the tip, it could be what I needed to finally get going ptoperly using these devices!!!yay
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--- In 6..., "Jay Dagenais" wrote:
>
> Thanks for the response! It was great to finally get something
feasible! So, just to recap, I am able to use my 68EVB912B32 dev board
as a debugger and also to flash code into a target?

I don't know if you're asking me this question? I don't have any
experience with your B32 board in particular, but I guess it has a
6-pin BDM interface on it. If so, you can program this board's flash
using an external BDM device connected to that port. Or you can use
this board as the BDM controller to program another board, using the
d-bug12 pod mode.

http://eet.etec.wwu.edu/CPU12/podcfg.html
http://eet.etec.wwu.edu/CPU12/PODInstrs.pdf

However, this is a very old board and I wouldn't spend much time with
that if it were me. You probably have an old version of d-bug12 that
has limitations in what it can do. Version 4 was a major upgrade and I
don't think it can work on a B32.

You can get much better boards now cheaply, like the Wytec Mini-Dragon
or the Dragon12. Many other companies also make development/eval
boards that use the same 9s12DP256 MCU. This is a powerful chip and a
great choice to learn with, since there's probably hundreds of web
pages that discuss this chip (with complete college oriented labs, etc).

Or, you can get a DragonFly board and you can program it's flash over
a serial port connected to a PC - with no BDM device required. These
chips are less powerful, but they're extremely simple to use.

It comes down to the question of how much time you have to work on
this and how much you value your time. It's pretty cheap to upgrade
your hardware and it can save you hours of frustration.

Eric