BUFFALO error messages

Greetings,

I'm not very familiar with the Motorola 68HC11 but am teaching a course 
using it.  What does it mean when BUFFALO gives an error message such as 
"ROM 2000" or "ROM 1384"?  I don't recall the circumstances under which the 
error was displayed (I'm working from old notes about what is wrong with 
some of our defective EVBUs).  Easy to fix?

Thanks!

mc wrote:
> Greetings,
>
> I'm not very familiar with the Motorola 68HC11 but am teaching a course
> using it.  What does it mean when BUFFALO gives an error message such as
> "ROM 2000" or "ROM 1384"?  I don't recall the circumstances under which the
> error was displayed (I'm working from old notes about what is wrong with
> some of our defective EVBUs).  Easy to fix?

Looking at this asm listing (line 635 and beyond):
 http://www.ecse.rpi.edu/courses/CStudio/hc11/buf34.lst

It appears that this is a memory write/read-back error (most commonly
an attempted write to ROM, I guess they assumed, hence the error name).

Mike Silva wrote:
> mc wrote:
> > Greetings,
> >
> > I'm not very familiar with the Motorola 68HC11 but am teaching a course
> > using it.  What does it mean when BUFFALO gives an error message such as
> > "ROM 2000" or "ROM 1384"?  I don't recall the circumstances under which the
> > error was displayed (I'm working from old notes about what is wrong with
> > some of our defective EVBUs).  Easy to fix?
>
> Looking at this asm listing (line 635 and beyond):
>  http://www.ecse.rpi.edu/courses/CStudio/hc11/buf34.lst
>
> It appears that this is a memory write/read-back error (most commonly
> an attempted write to ROM, I guess they assumed, hence the error name).

Hey thanks for posting that. I have a class with the HC11 and the
BUFFALO monitor. My professors wanted us to ask for it instead of
making it freely available.

-Isaac

"Mike Silva" <snarflemike@yahoo.com> wrote in message 
news:1158706156.141792.4820@m7g2000cwm.googlegroups.com...
>
> mc wrote:
>> Greetings,
>>
>> I'm not very familiar with the Motorola 68HC11 but am teaching a course
>> using it.  What does it mean when BUFFALO gives an error message such as
>> "ROM 2000" or "ROM 1384"?  I don't recall the circumstances under which 
>> the
>> error was displayed (I'm working from old notes about what is wrong with
>> some of our defective EVBUs).  Easy to fix?
>
> Looking at this asm listing (line 635 and beyond):
> http://www.ecse.rpi.edu/courses/CStudio/hc11/buf34.lst
>
> It appears that this is a memory write/read-back error (most commonly
> an attempted write to ROM, I guess they assumed, hence the error name).

Thanks!  I should add that this occurs with programs that work correctly on 
other EVBUs.  So I'm guessing defective static RAM chips.

"Mike Silva" <snarflemike@yahoo.com> wrote in message 
news:1158706156.141792.4820@m7g2000cwm.googlegroups.com...
>
> mc wrote:
>> Greetings,
>>
>> I'm not very familiar with the Motorola 68HC11 but am teaching a course
>> using it.  What does it mean when BUFFALO gives an error message such as
>> "ROM 2000" or "ROM 1384"?  I don't recall the circumstances under which 
>> the
>> error was displayed (I'm working from old notes about what is wrong with
>> some of our defective EVBUs).  Easy to fix?
>
> Looking at this asm listing (line 635 and beyond):
> http://www.ecse.rpi.edu/courses/CStudio/hc11/buf34.lst
>
> It appears that this is a memory write/read-back error (most commonly
> an attempted write to ROM, I guess they assumed, hence the error name).

Line 4622 actually seems to be the place.  Thanks!