Lpc2000

Thanks. I used P0.14 to get rid of my program
and reprogramed it via JTAG.
Smart idea. Thanks again.

Adam

Stanley Frederickson wrote:

> When you say that your hardware doesn't support ISP, I
> am guessing you just don't have the UART setup to
> communicate with the PC.  Can you still pull pin P0.14
> low during reset to have the chip enter bootloader
> mode anyway?  If so, your code that disabled the JTAG
> interface won't get to run (the Philips ISP bootloader
> will run instead) and then you can connect through the
> JTAG interface and reprogram the chip.
>
> Did you also write 0 to bit 2?  If so, this would
> switch the JTAG pins into GPIO mode instead of debug
> mode.
>
> --- upanie1 <upanie@...> wrote:
>
> > OK, but how to this if i can't load new program -
> > JTAG doesn't want to
> > work. I can't use ISP because my hardware does not
> > allow to do it.
> > And one more thing: user manual says that one can't
> > write 1s at
> > specified position to PINSEL2 but i write 0 to it
> > and JTAG crashes.
>
>
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