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How to erase flash in locked DS89C450?

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DrWhoF

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89c450 erase lb

How to erase flesh in locked DS89C450?
Thanks
 

Re: DS89C450

Once the internal monitor program answers with the prompt, use the monitor command ‘K’ to erase internal memory. That is, press ‘K’ and enter.
Here is an example:
<0D><0A>
<0D><0A>
DS


DS89C450 LOADER VERSION 2.1 COPYRIGHT (C) 2002 DALLAS SEMICONDUCTOR<0D><0A>
> 89C450 LOADER VERSION 2.1 COPYRIGHT (C) 2002 DALLAS SEMICONDUCTOR
> R<0D><0A>
R<0D><0A>
LB:07 OCR:00 ACON:1F CKCON:01 P0:FF P1:FF P2:FF P3:FF FCNTL:B1<0D><0A>
>Watchdog reset function is enabled in device, cannot be disabled
Unable to establish communication with target.
Check connection to target system or consult help files.
K
<0D><0A>

<0D><0A>
>
> <0D><0A>
<0D><0A>
<0D><0A>




> > R<0D><0A>
R<0D><0A>
LB:00 OCR:F7 ACON:1F CKCON:01 P0:FF P1:FF P2:FF P3:FF FCNTL:B1<0D><0A>
>W CKCON 7<0D><0A>
W CKCON 7<0D><0A>
<0D><0A>
> W ACON 00<0D><0A>
W ACON 00<0D><0A>
<0D><0A>
> W LB 7<0D><0A>
W LB 7<0D><0A>
<0D><0A>
>
Click to expand...
Regards,
IanP
 

    D

    DrWhoF

    Points: 2
    Helpful Answer Positive Rating
Re: DS89C450

OK. It is erased, but how can I download my compiled file?
Thanks
 

Re: DS89C450

Enter the load command ‘L’ (and enter). This places the monitor in the download state (It expects code in the Intel Hex format) and download..
Regards,
IanP
 

    D

    DrWhoF

    Points: 2
    Helpful Answer Positive Rating
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