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Question regarding JTAG AND DSP 8013

Started by edri...@stptel November 29, 2005
Hello, all
 
I am currently developing a temperature control using 56F8013, and i have a problem.
i have programed all IOs that are not being used as input, and as soon as i start debug my program Codewarrior debug said CCS Cable lost communication, and after that moment i have no longer acces to DSP, i think it is because i have programed even the reset as an input.
Does anyone knows how to erase a chip in this state.
 
thanks in advance.
  _____________________
  Edriano Carlos de Arao
 
  STP  TECNOLOGIA  LTDA
  Al  Juari  N   447  Tamborbr />  Barueri/SP  Zip  06460-090
  +55 (11) 4195 2396 ext 213
  e...@stptel.com.br


Steps unlock JTAG and Reset Pin

1) Device is powered OFF
2) ASSERT external RESETb
3) Device is powered ON
4) Debugger connection attempted
5) DEASSERT external RESETb

Good luck!

Charlie

--- "edriano@stptel" <edriano@edri...> wrote:

> Hello, all
>
> I am currently developing a temperature control
> using 56F8013, and i have a problem.
> i have programed all IOs that are not being used as
> input, and as soon as i start debug my program
> Codewarrior debug said CCS Cable lost communication,
> and after that moment i have no longer acces to DSP,
> i think it is because i have programed even the
> reset as an input.
> Does anyone knows how to erase a chip in this state.
>
> thanks in advance.
> _____________________
> Edriano Carlos de Arao
>
> STP TECNOLOGIA LTDA
> Al Juari N 447 Tamborbr /> > Barueri/SP Zip 06460-090
> +55 (11) 4195 2396 ext 213
> edriano@edri...



thank you charlie.
 
it worked fine.
----- Original Message -----
From: Charlie W
To: edriano@stptel ; m...@yahoogroups.com
Sent: Wednesday, November 30, 2005 5:14 PM
Subject: Re: [motoroladsp] Question regarding JTAG AND DSP 8013

Steps unlock JTAG and Reset Pin

1) Device is powered OFF
2) ASSERT external RESETb
3) Device is powered ON
4) Debugger connection attempted
5) DEASSERT external RESETb

Good luck!

Charlie

--- "edriano@stptel" <e...@stptel.com.br> wrote:

> Hello, all
>
> I am currently developing a temperature control
> using 56F8013, and i have a problem.
> i have programed all IOs that are not being used as
> input, and as soon as i start debug my program
> Codewarrior debug said CCS Cable lost communication,
> and after that moment i have no longer acces to DSP,
> i think it is because i have programed even the
> reset as an input.
> Does anyone knows how to erase a chip in this state.
>
> thanks in advance.
>   _____________________
>   Edriano Carlos de Arao
>
>   STP  TECNOLOGIA  LTDA
>   Al  Juari  N   447  Tamborbr />>   Barueri/SP  Zip  06460-090
>   +55 (11) 4195 2396 ext 213
>   e...@stptel.com.br


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