gnupic: Thread: 18F ICD info?

Hi

Has anyone ever looked into the 18F "in circuit debugger" feature?

I would find it handy to be able to stop the cpu and determine the
current PC (heh, wouldn't that be nice :-)

Is any info on this feature available?  There's a nice doc on the 16F87x
but I can't find anything for the 18F (but I'd bet they are similar)

I have an ICD2 but it's such a pain to use and I can't use it from
Linux. I find broccoli18 and odyssey work great from linux.

-brad

On Tue, Jan 27, 2004 at 10:39:58AM -0500, Brad Parker wrote:
> 
> Has anyone ever looked into the 18F "in circuit debugger" feature?
> 
> I would find it handy to be able to stop the cpu and determine the
> current PC (heh, wouldn't that be nice :-)

I don't even have a icd2, but someone told me it had lots of endpoints,
which could equal difficult to implement :(.

gpsim have support for the icd1. When you have the functions that
'determine the current PC', step, run, a.s.o.; integrading into gpsim 
is easy. 
 
 
> I have an ICD2

Start hacking it ;-)

 / Ralf

Hi,

I am looking for this documenation too.
Concerning the Linux 16F ICD tools, I just released mine about a month
ago. I use it as a replacement of the native microchip tools.
Take a look at http://gpicd.sourceforge.net. 

It would be great if it could support the 18F family too :-(

Sylvain


On Tue, 2004-01-27 at 14:39, Brad Parker wrote:
> Hi
> 
> Has anyone ever looked into the 18F "in circuit debugger" feature?
> 
> I would find it handy to be able to stop the cpu and determine the
> current PC (heh, wouldn't that be nice :-)
> 
> Is any info on this feature available?  There's a nice doc on the 16F87x
> but I can't find anything for the 18F (but I'd bet they are similar)
> 
> I have an ICD2 but it's such a pain to use and I can't use it from
> Linux. I find broccoli18 and odyssey work great from linux.
> 
> -brad
> 

On Tue, Jan 27, 2004 at 07:36:32PM -0100, Sylvain Giroudon wrote:
> Hi,
> 
> Concerning the Linux 16F ICD tools, I just released mine about a month
> ago. I use it as a replacement of the native microchip tools.
> Take a look at http://gpicd.sourceforge.net. 

Did you find docs for this? A year and a half ago, I couldn't find 
anything, so I had to reverse engineer it.

> It would be great if it could support the 18F family too :-(

Me too.

 / Ralf

On Wed, 2004-01-28 at 08:35, Ralf Forsberg wrote: 
> On Tue, Jan 27, 2004 at 07:36:32PM -0100, Sylvain Giroudon wrote:
> > Hi,
> > 
> > Concerning the Linux 16F ICD tools, I just released mine about a month
> > ago. I use it as a replacement of the native microchip tools.
> > Take a look at http://gpicd.sourceforge.net. 
> 
> Did you find docs for this? A year and a half ago, I couldn't find 
> anything, so I had to reverse engineer it.
> 
> > It would be great if it could support the 18F family too :-(
> 
> Me too.
> 
>  / Ralf

On Wed, 2004-01-28 at 08:35, Ralf Forsberg wrote:
> On Tue, Jan 27, 2004 at 07:36:32PM -0100, Sylvain Giroudon wrote:
> > Hi,
> > 
> > Concerning the Linux 16F ICD tools, I just released mine about a month
> > ago. I use it as a replacement of the native microchip tools.
> > Take a look at http://gpicd.sourceforge.net. 
> 
> Did you find docs for this? A year and a half ago, I couldn't find 
> anything, so I had to reverse engineer it.
> 
> > It would be great if it could support the 18F family too :-(
> 
> Me too.
> 
>  / Ralf
> 

I found the ICD specs from Microchip at
http://www.microchip.com/download/lit/suppdoc/specs/51242a.pdf

Please note that for the moment, GPICD uses low-level ICD with a small
home-made interface directly connected to the target.
It does not use any commercial procuct from Microchip.

Sylvain

On Wed, Jan 28, 2004 at 08:18:45PM -0100, Sylvain Giroudon wrote:
> 
> I found the ICD specs from Microchip at
> http://www.microchip.com/download/lit/suppdoc/specs/51242a.pdf

Yes I knew about that one.

> Please note that for the moment, GPICD uses low-level ICD with a small
> home-made interface directly connected to the target.

Ok, I misunderstood. I thought you had implemented the serial protocol
used by microchip.

 / Ralf