Chris H wrote:
> In message <6...@comcast.com>, donald 
> <D...@dontdoithere.com> writes
>> My first guess.
>> Six pin programmer is likely to be AVR.
> 
> Or a freescale part  Doesn't BDM have 6 pins?

This has OSC pins on 21/22.

http://www.freescale.com/files/dsp/doc/data_sheet/DSP56F801.pdf

Page 40 is the pin out.

You can check other pin to see if it matches.

It may be in this family, if this part is not a good match.


good luck

donald

On 5.7.2008 11:19, Francesco Sacchi wrote:
> 
> Are you sure that crystal is connected to pins 41 and 42?
> Since the mark on the case is in the upper left corner I would say that 
> OSC pins are on 21 & 22.
> I looked at AVR, Luminary, SAM7, PIC, NXP, and found nothing that has 
> oscillator on these pins. Any other ideas? Maybe ST?
> 
> 

How about MC9S12, oscillator pins seem to match and the part also has CAN.

http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC9S12C128V1.pdf

Henri

Henri wrote:
> On 5.7.2008 11:19, Francesco Sacchi wrote:
>>
>> Are you sure that crystal is connected to pins 41 and 42?
>> Since the mark on the case is in the upper left corner I would say 
>> that OSC pins are on 21 & 22.
>> I looked at AVR, Luminary, SAM7, PIC, NXP, and found nothing that has 
>> oscillator on these pins. Any other ideas? Maybe ST?
>>
>>
> 
> How about MC9S12, oscillator pins seem to match and the part also has CAN.
> 
> http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC9S12C128V1.pdf 
> 
> 
> Henri
I think the OP stated the CAN chip was off board.

donald

In message <6...@comcast.com>, donald
<D...@dontdoithere.com> wrote:

>Henri wrote:
>> On 5.7.2008 11:19, Francesco Sacchi wrote:
>>>
>>> Are you sure that crystal is connected to pins 41 and 42?
>>> Since the mark on the case is in the upper left corner I would say 
>>> that OSC pins are on 21 & 22.
>>> I looked at AVR, Luminary, SAM7, PIC, NXP, and found nothing that has 
>>> oscillator on these pins. Any other ideas? Maybe ST?
>>>
>>>
>> 
>> How about MC9S12, oscillator pins seem to match and the part also has CAN.
>> 
>> http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC9S12C128V1.pdf 
>> 
>> 
>> Henri
>I think the OP stated the CAN chip was off board.

Actually, I'm not sure where the CAN chip is at this point. There are
5 ICs with their markings obfuscated. One or more of them could be a
CAN transceiver.

In message <gz6ck.198$w...@read4.inet.fi>, Henri <h...@s.fi> wrote:

>On 5.7.2008 11:19, Francesco Sacchi wrote:
>> 
>> Are you sure that crystal is connected to pins 41 and 42?
>> Since the mark on the case is in the upper left corner I would say that 
>> OSC pins are on 21 & 22.
>> I looked at AVR, Luminary, SAM7, PIC, NXP, and found nothing that has 
>> oscillator on these pins. Any other ideas? Maybe ST?
>
>How about MC9S12, oscillator pins seem to match and the part also has CAN.
>
>http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC9S12C128V1.pdf

Yes, that looks like an extremely good candidate.

I'm afraid I'm not well equipped to deal with these fine-pitch surface
mount devices. I'm in the process of digging up some decent probes and
a nice magnifying lamp. It might be a couple of days before I can
trace the pins on the micro with reasonable accuracy. 

Stay tuned! :)

In message <V...@phaedsys.demon.co.uk>, Chris H
<c...@phaedsys.org> wrote:

>Any other pins you can identify?
>
>Like the pins going to the CAN part, where the DIP switches connect to.

I'm afraid I need better tools, but I'm working on getting them.

>Have you tried looking at the part under a UV light?

No - what would that tell me? Might it reveal some trace remnants of
the original marking on the obfuscated parts?

Scott in SoCal wrote:
> In message <6...@comcast.com>, donald
> <D...@dontdoithere.com> wrote:
> 
>> Henri wrote:
>>> On 5.7.2008 11:19, Francesco Sacchi wrote:
>>>> Are you sure that crystal is connected to pins 41 and 42?
>>>> Since the mark on the case is in the upper left corner I would say 
>>>> that OSC pins are on 21 & 22.
>>>> I looked at AVR, Luminary, SAM7, PIC, NXP, and found nothing that has 
>>>> oscillator on these pins. Any other ideas? Maybe ST?
>>>>
>>>>
>>> How about MC9S12, oscillator pins seem to match and the part also has CAN.
>>>
>>> http://www.freescale.com/files/microcontrollers/doc/data_sheet/MC9S12C128V1.pdf 
>>>
>>>
>>> Henri
>> I think the OP stated the CAN chip was off board.
> 
> Actually, I'm not sure where the CAN chip is at this point. There are
> 5 ICs with their markings obfuscated. One or more of them could be a
> CAN transceiver.

This has been fun.

So, can you please give a little more information about "an iPod adapter 
for a car stereo".

Maybe another pics of the entire board.

thanks

donald

In message <v...@4ax.com>, Scott in SoCal 
<s...@yahoo.com> writes
>In message <V...@phaedsys.demon.co.uk>, Chris H
><c...@phaedsys.org> wrote:
>
>>Any other pins you can identify?
>>
>>Like the pins going to the CAN part, where the DIP switches connect to.
>
>I'm afraid I need better tools, but I'm working on getting them.
>
>>Have you tried looking at the part under a UV light?
>
>No - what would that tell me? Might it reveal some trace remnants of
>the original marking on the obfuscated parts?

That was my thought.
-- 
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills  Staffs  England     /\/\/\/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/

On Jul 5, 9:39 am, langw...@fonz.dk wrote:

> > >>> Six pin programmer is likely to be AVR.

> freescale maybe?

It could very well be a six pin BDM header from a freescale HCS12 or
(not sure about this) HCS08.

What pins of the header are connected to power or ground?  For an
HCS12 pin 2 is ground, pin 6 is power, while pins 2 (BDM) and 4
(nreset) go to the chip and should have ~10K pullup resistors on the
board.  Pins 3 & 5 are probably nc.

On Jul 4, 8:28 pm, Scott in SoCal <scottenazt...@yahoo.com> wrote:

> The six-pin DIP header in the lower left corner of the
> photograph might be a JTAG connector.
>

It could be Freescale HCS12 (or perhaps HCS08, but not sure about
that) BDM connector.  For the HCS12, Pin 2 would be ground, pin 6
power.  Pins 1 & 4 go to the micro and have maybe 10k pullup
resistors.