Hi there,
I am working on a Freescale HC12 chip connected to an Axiom CSM12D Board, but
cannot successfully enter debug mode. If I hook up the board, communication can
be established with the AxIDE terminal. The following message is displayed:
Axiom Manufacturing
CSM12D Education Module
MC9S12DT256 MCU
This message is displayed everytime the RESET button is pressed that same
message is displayed. The problem arises when I try to put a sample program on
the chip using CodeWarrior. The code I am trying to use was provided by
Freescale, and all it should do is light up an LED when one of the onboard
switches is depressed. When I try to connect with CodeWarrior using the HCS12
Serial Monitor, the following error messages are produced:
Cannot connect to hardware.
I did make the project first. Then entered debug mode, which is where the error
presented itself. Does anyone know if there are common problems with this board
or this version of CodeWarrior?
Thanks for your help.
Problems Entering Debug Mode with MC9S12DT256 and CodeWarrior v5.7.0
Started by ●January 28, 2008
Reply by ●January 28, 20082008-01-28
Hi,
I am looking for ways of clearing the IC chip markings on my PCBs. I would like to clear (laser, chemical, grind etc.) the IC number from the chip to protect my intellectual property - any ideas?
Frank
I am looking for ways of clearing the IC chip markings on my PCBs. I would like to clear (laser, chemical, grind etc.) the IC number from the chip to protect my intellectual property - any ideas?
Frank
Reply by ●January 29, 20082008-01-29
Hello Franck,
Please next time create a new thread so the group is cleaner.
A cheap and widely used way is to put some white glue all over.
If someones tries to access the chip, he/she is likely to break a
track or a pin removing the glue.
Problem is that it is difficult for qulity returns.
Another way is the grinding, I have seen it also.
Actually, all the fake IC sellers are using this to overwrite the real
marking on chips. So it is working because people are getting caught!
The laser and others may be expensive to implement.
Cheers,
Alban.
--
Alban Rampon
K-Noo.net
--- In 6..., linktek wrote:
>
> Hi,
>
> I am looking for ways of clearing the IC chip markings on my PCBs. I
would like to clear (laser, chemical, grind etc.) the IC number from
the chip to protect my intellectual property - any ideas?
>
> Frank
>
>
>
Please next time create a new thread so the group is cleaner.
A cheap and widely used way is to put some white glue all over.
If someones tries to access the chip, he/she is likely to break a
track or a pin removing the glue.
Problem is that it is difficult for qulity returns.
Another way is the grinding, I have seen it also.
Actually, all the fake IC sellers are using this to overwrite the real
marking on chips. So it is working because people are getting caught!
The laser and others may be expensive to implement.
Cheers,
Alban.
--
Alban Rampon
K-Noo.net
--- In 6..., linktek wrote:
>
> Hi,
>
> I am looking for ways of clearing the IC chip markings on my PCBs. I
would like to clear (laser, chemical, grind etc.) the IC number from
the chip to protect my intellectual property - any ideas?
>
> Frank
>
>
>
Reply by ●February 2, 20082008-02-02
White glue is easily dissolved. It is water soluble.
Laser marking are, by design, very difficult to obscure. Even if you
think it is off, there are enchants that can restore it.
I recommend this epoxy:
http://www.jgreer.com/electronic_potting.htm
It is a very hard to remove.
Laser marking are, by design, very difficult to obscure. Even if you
think it is off, there are enchants that can restore it.
I recommend this epoxy:
http://www.jgreer.com/electronic_potting.htm
It is a very hard to remove.
