25 Apr 2005 3:30 Re: DS89C450 programming (again ?
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If you use MTK and 11,0952MHz quarz the proper communication between PC and DS89C450/4.. can be established at 14,400bps.. so configure your serial port for that speed.
Before you try to establish communication DO NOT FORGET aboyt setting TARGET CONFIGURATION Flesh Security to Level 4 (if you leave Level1 you will lock the security bits).
With all this done you can press CTR+L = connect to loader (or TARGET ...) and you will see the following:
Quote:
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:00 OCR:FF ACON:1F CKCON:01 P0:FF P1:FF P2:FF P3:FF FCNTL:B1<0D><0A>
>W CKCON 0<0D><0A>
W CKCON 0<0D><0A>
<0D><0A>
> W ACON E0<0D><0A>
W ACON E0<0D><0A>
<0D><0A>
> W OCR 0<0D><0A>
W OCR 0<0D><0A>
<0D><0A>
> W LB 7<0D><0A>
W LB 7<0D><0A>
<0D><0A>
>
Now you will be conected ...