Forums

Downloading code into Microstamp11

Started by indrajeetak February 3, 2005

Hi,
I have a microstamp11 and use Imagecraft's ICC11 compiler and
Microload for my software needs. Lately the following phenomenon has
been observed:

I compile the code in ICC11 successfully. I then switch the
microstamp11 over to write mode and download the code into it using
Microload. It does so successfully. When I switch over to run mode,
it runs the code that was previously downloaded. It is as if the
code downloaded into it does not get written into the EEPROM. After
several tries, it succeeds.
I am absolutely dumbfounded.

Regards,
Indrajeet




Re: Downloading code into Microstamp11

In a message dated 2/3/05 5:45:10 P.M. Eastern Standard Time,
writes:

I have a microstamp11 and use Imagecraft's ICC11 compiler and
Microload for my software needs. Lately the following phenomenon has
been observed:

I compile the code in ICC11 successfully. I then switch the
microstamp11 over to write mode and download the code into it using
Microload. It does so successfully. When I switch over to run mode,
it runs the code that was previously downloaded. It is as if the
code downloaded into it does not get written into the EEPROM. After
several tries, it succeeds.
I am absolutely dumbfounded.
======================
I use microstamps and icc11 and microload quite a bit... do you have turbo
microstamp or standard selected in microload? Must flip BOTH switches IN (to
center of board) to burn, OUT to run, right?




Emmett Redd Ph.D. mailto:
Associate Professor (417)836-5221
Department of Physics, Astronomy, and Materials Science
Southwest Missouri State University Fax (417)836-6226
901 SOUTH NATIONAL Dept (417)836-5131
SPRINGFIELD, MO 65804 USA

> -----Original Message-----
> From: indrajeetak [mailto:]
> Sent: Thursday, February 03, 2005 4:31 PM
> To:
> Subject: [m68HC11] Downloading code into Microstamp11 >
> Hi,
> I have a microstamp11 and use Imagecraft's ICC11 compiler and
> Microload for my software needs. Lately the following phenomenon has
> been observed:
>
> I compile the code in ICC11 successfully. I then switch the
> microstamp11 over to write mode and download the code into it using
> Microload. It does so successfully. When I switch over to run mode,
> it runs the code that was previously downloaded. It is as if the
> code downloaded into it does not get written into the EEPROM. After
> several tries, it succeeds.
^^^^^^^^^^^^^

After several tries of running or after several tries of downloading?
If the former, I understand you dumbfoundedness. If the latter, you
must not actually getting the code downloaded. Rather than running to
test, can you use Microload to verify latest code has downloaded?

> I am absolutely dumbfounded.
>
> Regards,
> Indrajeet
>


Emmett Redd Ph.D. mailto:
Associate Professor (417)836-5221
Department of Physics, Astronomy, and Materials Science
Southwest Missouri State University Fax (417)836-6226
901 SOUTH NATIONAL Dept (417)836-5131
SPRINGFIELD, MO 65804 USA




Hi,
I sent my .s19 file to Technological Arts and they replied with the
following explanation and that solved the problem.

"It is important to use Init first in your program, because that is
where you initialize the CONFIG register to disable the COP
feature. If your program tries to send a string first (before
disabling COP), the COP will time out and vector to the COP reset
address contained in 0xFFFA. Since your program does not initialize
any other vectors besides reset and TOC4, the other vectors still
contain values left over from the demo program. Also, the demo
program is still intact in EEPROM at 0xE000, because you have
started your program at 0x8000 (note that MicroLoad doesn't erase
the entire EEPROM before loading new code-- it just overwrites the
new locations as per your .s19 file). It is good programming
practice to initialize all the interrupt vectors so that spurious
interrupts won't cause misleading behaviour. For example, you could
initialize all unused interrupt vectors to point to the beginning of
your program."

So thats it. But thanks a lot guys for taking interest in this
matter. --- In , "indrajeetak" <indrajeetak@g...>
wrote:
>
> Hi,
> I have a microstamp11 and use Imagecraft's ICC11 compiler and
> Microload for my software needs. Lately the following phenomenon
has
> been observed:
>
> I compile the code in ICC11 successfully. I then switch the
> microstamp11 over to write mode and download the code into it
using
> Microload. It does so successfully. When I switch over to run
mode,
> it runs the code that was previously downloaded. It is as if the
> code downloaded into it does not get written into the EEPROM.
After
> several tries, it succeeds.
> I am absolutely dumbfounded.
>
> Regards,
> Indrajeet