Posted by tesla October 9, 2007
On Oct 9, 8:14 pm, larwe <zwsdot...@gmail.com> wrote:
> On Oct 9, 1:12 pm, tesla <yusufil...@gmail.com> wrote: > > > Why powerpc debug tools are so expensive? > > All PPC development hardware is expensive, because the volumes are > low. Eval boards are expensive too. > > Don't expect to find a cheap USB solution, or a homebrew one. It is > however easy enough to build a Wiggler clone. The standard parallel > port wiggler is a multi-ended device (look inside an original > Macraigor wiggler...) and can support the PPC debug port.
I have seen parallel port wiggler schematic and openwince jtag software port to debug/program kurobox. but my computer does not have parallel port. USB2parallel port emulators does not work for such devices (par port i/ o) pcmcia or expresscard parallel ports may work, i havent tried. I believe pcmcia ones are *real* parallel ports.
Posted by Martin Griffith October 9, 2007
On Tue, 09 Oct 2007 10:14:55 -0700, in comp.arch.embedded larwe
<zwsdotcom@gmail.com> wrote:

>On Oct 9, 1:12 pm, tesla <yusufil...@gmail.com> wrote: > >> Why powerpc debug tools are so expensive? > >All PPC development hardware is expensive, because the volumes are >low. Eval boards are expensive too. > >Don't expect to find a cheap USB solution, or a homebrew one. It is >however easy enough to build a Wiggler clone. The standard parallel >port wiggler is a multi-ended device (look inside an original >Macraigor wiggler...) and can support the PPC debug port. >
If you have a chance listen to this http://www.bbc.co.uk/worldservice/programmes/global_business.shtml It is all about wiki cooperation, maybe the JTAG syndrome will be broken Martin
Posted by Didi October 9, 2007
> All PPC development hardware is expensive, because the volumes are > low.
Not because the volumes are low. All PPC debug registers are JTAG accessible, the real price of a JTAG cable is negligible. The reason why the tools are expensive is the fact that Freescale keep the interface secret - and award the "busyness" of making tools to someone they - and not the market - choose to. However, the PPC parts can be debugged without using the secret debug areas. I manage to do that without missing those secret areas at all, boundary scan and PPC alone are quite sufficient. Frankly, I don't think having their secret data (they call it a "COP" interface not to be confused with the COP timer on other systems) would bring me much benefit, I am fine as things are. To the OP: I have made a debug monitor for the MPC5200 public (free for development purposes), you can locate it under "downloads" on our website. Dimiter ------------------------------------------------------ Dimiter Popoff Transgalactic Instruments http://www.tgi-sci.com ------------------------------------------------------ On Oct 9, 8:14 pm, larwe <zwsdot...@gmail.com> wrote:
> On Oct 9, 1:12 pm, tesla <yusufil...@gmail.com> wrote: > > > Why powerpc debug tools are so expensive? > > All PPC development hardware is expensive, because the volumes are > low. Eval boards are expensive too. > > Don't expect to find a cheap USB solution, or a homebrew one. It is > however easy enough to build a Wiggler clone. The standard parallel > port wiggler is a multi-ended device (look inside an original > Macraigor wiggler...) and can support the PPC debug port.
Posted by larwe October 9, 2007
On Oct 9, 1:12 pm, tesla <yusufil...@gmail.com> wrote:

> Why powerpc debug tools are so expensive?
All PPC development hardware is expensive, because the volumes are low. Eval boards are expensive too. Don't expect to find a cheap USB solution, or a homebrew one. It is however easy enough to build a Wiggler clone. The standard parallel port wiggler is a multi-ended device (look inside an original Macraigor wiggler...) and can support the PPC debug port.
Posted by tesla October 9, 2007
Hi,

Why powerpc debug tools are so expensive?

Does anybody know low-cost USB powerpc jtag/cop ?

Amontec website mentions about USB version of Chameleon POD but no
informayion for now.

Macraigor cheapest usb hardware is $225 + they sell their flash
programming software for $500.

Any chance to find some open hardware-software combination?


thanks