Lpc2000

Can anybody tell me what the bootloader does with the RxD1 pin ?
When my software enters the ISP, it is fine, but when I start uploading 
the software, the RxD1 pin of the CPU goes from input (or rxd uart to be 
more precise) to output level 0. Why ????

Mauricio

> Can anybody tell me what the bootloader does with the RxD1 pin ?
> When my software enters the ISP, it is fine, but when I start uploading
> the software, the RxD1 pin of the CPU goes from input (or rxd uart to be
> more precise) to output level 0. Why ????

Does it make a difference if Flash was previously erased?

don't know, but in my case, flash was not previously erased.


Joel Winarske wrote:
> > Can anybody tell me what the bootloader does with the RxD1 pin ?
> > When my software enters the ISP, it is fine, but when I start uploading
> > the software, the RxD1 pin of the CPU goes from input (or rxd uart to be
> > more precise) to output level 0. Why ????
>
> Does it make a difference if Flash was previously erased?
>
>
>
>
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