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We are hving trouble getting out MC9S12E128MFUE to run without the BDM
interface. Things are OK when reset and run from the P&E interface but
the chip does not run as standalone. What wrong?
------------------------------------

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Reset circuit on board is OK?
How do you identify that stand alone it doesn't operate?

________________________________

De : 6...@yahoogroups.com [mailto:6...@yahoogroups.com] De la part de s=
tuartied
Envoy=E9 : mardi 3 juin 2008 15:27
=C0 : 6...@yahoogroups.com
Objet : [68HC12] MC9S12 DOES NOT RUN WITHOUT BMD

We are hving trouble getting out MC9S12E128MFUE to run without the BDM=20
interface. Things are OK when reset and run from the P&E interface but=20
the chip does not run as standalone. What wrong?

.
05/msgId=3D15944/stime=3D1212499654/nc1=3D3848621/nc2=3D4507179/nc3=3D49902=
12>=20
=20
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Stellaris® MCU Family: New Parts, New Package, New Price.


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S12E family has LVR circuit. Brown out detector isn't a must for S12E. I
would start checking write once registers, those that are write many times
when BDM is connected (special mode), and that become write once witout BDM
(normal mode).

Edward
----- Original Message -----
From: "MARC Erwan"
To: <6...@yahoogroups.com>
Sent: Tuesday, June 03, 2008 4:36 PM
Subject: RE: [68HC12] MC9S12 DOES NOT RUN WITHOUT BMD
Reset circuit on board is OK?
How do you identify that stand alone it doesn't operate?

________________________________

De : 6...@yahoogroups.com [mailto:6...@yahoogroups.com] De la part de
stuartied
Envoyé : mardi 3 juin 2008 15:27
À : 6...@yahoogroups.com
Objet : [68HC12] MC9S12 DOES NOT RUN WITHOUT BMD

We are hving trouble getting out MC9S12E128MFUE to run without the BDM
interface. Things are OK when reset and run from the P&E interface but
the chip does not run as standalone. What wrong?

.

------------------------------------



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Your code probably does not turn off the internal watchdog timer.

Dave
stuartied wrote:

> We are hving trouble getting out MC9S12E128MFUE to run without the BDM
> interface. Things are OK when reset and run from the P&E interface but
> the chip does not run as standalone. What wrong?
>
>

[Non-text portions of this message have been removed]
------------------------------------



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