Philips P89C668: In System Programming through I2C

Hi all,

I am doing a project, which is based on Philips 8051 microcontroller,
P89C668.

Right now, i have to implement a In system programming in the project.
Unfortunately, my hardware do not has Serial port connected, therefore,
i cannot use the standard ISP Boot ROM and Flash Magic as provided.

However, the only communication i have between controller and the host
is I2C bus.

What i planned to do is to write a Boot loader, which can communicate
with the host through I2C bus, and able to write into the flash memory
of controller, in order to perform ISP/IAP.

Can anyone guide me on this, maybe on i2C communication and ISP,
Because i try IAP, but i failed to write into the memory and i need
someone to guide me on writing the I2c Communication routine in
assembly.


thanks all for help

-seah

visit

http://www.standardproducts.philips.com/i2c/



"seahcj" <seahcj@gmail.com> wrote in message
news:1102916865.314003.157910@c13g2000cwb.googlegroups.com...
> Hi all,
>
> I am doing a project, which is based on Philips 8051 microcontroller,
> P89C668.
>
> Right now, i have to implement a In system programming in the project.
> Unfortunately, my hardware do not has Serial port connected, therefore,
> i cannot use the standard ISP Boot ROM and Flash Magic as provided.
>
> However, the only communication i have between controller and the host
> is I2C bus.
>
> What i planned to do is to write a Boot loader, which can communicate
> with the host through I2C bus, and able to write into the flash memory
> of controller, in order to perform ISP/IAP.
>
> Can anyone guide me on this, maybe on i2C communication and ISP,
> Because i try IAP, but i failed to write into the memory and i need
> someone to guide me on writing the I2c Communication routine in
> assembly.
>
>
> thanks all for help
>
> -seah
>

Hi,

I have searched thru the philips website, but i failed to do the IAP.

Anyone here try IAP on P89C668 before, can leave me email address or
leave message here, so that i can contact you directly?
Thanks

my email: seahcj@hotmail.com