PORESET and SWT

"Peter Allen \(Yahoo\)" <[email protected]>
Newsgroups gmane.comp.hardware.motorola.microcontrollers
Message-ID <000b01c59184$3d7c6400$c500a8c0@VW30KW>
I just got some hardware back and can get code into flash.  The device
comes out of reset but doesn't boot withou BDM intervention (ie.  I
attach to code already on target and then use the reset command and the
code starts running as expected).  I have also noticed that the PIT
doesn't always start working but serial coms and TPU run ok and the SWT
doesn't ever time out to cause a reset.
 
Things I know (I think):
 
device is operating at desired 56MHz since:
     baud rate is tied to this.
    TPU functions are producing the correct timing patterns.
 
I noticed that on my Axiom eval board when i used the POReset the code
would not boot until the watchdog timer ran out and and then everything
would work OK.  I I used the Hreset or Sreset the system would bot
straight away (power is applied to the board at all times).
 
If anyone has some wisdom on this problem I would greatly appreciate the
help
 
Peter Allen
Haltech Design Engineer
www.haltech.com <http://www.haltech.com/> 
ph:  95252400
fax: 95252991
 


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