From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay01.roc.ny.frontiernet.net (relay01.roc.ny.frontiernet.net [66.133.131.34]) by ozlabs.org (Postfix) with ESMTP id 0D3B967A83 for ; Thu, 27 Jan 2005 07:30:33 +1100 (EST) Message-ID: <00c001c503e6$64369fb0$0301a8c0@chuck2> From: "Mark Chambers" To: "Dan Malek" , "annamaya" References: <20050126185350.20232.qmail@web53804.mail.yahoo.com> Date: Wed, 26 Jan 2005 15:33:52 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Cc: linuxppc-embedded@ozlabs.org Subject: Re: Is there a DER for the MPC82xx? List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: "Dan Malek" > > On Jan 26, 2005, at 10:53 AM, annamaya wrote: > > > Can someone tell me if the BDI will be able to catch > > all different kinds of exceptions/interrupts on the > > MPC82xx without requiring any special register > > programming? I am unable to find anything that that > > resembles the DER register on the MPC8280. > > The BDI2000 works very nicely on 82xx processors. > The 82xx debug unit is the standard COP interface, > completely different from the 8xx debug interface. > Stop looking for a DER on the 82xx, plug in the > BDI2000 and use it. Make sure you understand all > of the features of the BDI2000, as even on the 8xx > you should not be worrying about the DER. Let the > BDI2000 configure all of that accordingly based upon > what you are asking it to do. > > Well, the DER lets you look for multiple conditions at once. Your program is blowing up, the memory is getting trashed and you don't even know if the hardware is valid - that's where BDM really shines. I don't see where COP let's you do the equivalent of setting a bunch of bits in the DER, so please enlighten us if we're missing it! Mark Chambers P.S. I've read the BDI manual - I don't see it. My manual says the BDI can only set one hardware breakpoint, and stuff like VECTOR CATCH assumes valid memory.