Lpc2000

Should be relatively simple... use the philips LPC2000 flash utility to talk
to the board via serial and erase the flash.
Pin P0.14 can be used for ISP Select for this purpose... it's how I'm
talking and programming the board on my desk at the moment actually.

Andy

-----Original Message-----
From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com]On Behalf
Of pfavr2
Sent: 23 May 2006 13:24
To: lpc2000@yahoogroups.com
Subject: [lpc2000] Re: I could use some IAR blinking code.


Hi,

I just learned that the example code below shouldn't be put into flash
- if you still want to use the JTAG that is ;-)

The JTAG shares the GPIO1 port, so setting everything in IODIR1 will
disable JTAG. This means that after flashing I cannot use the JTAG
anymore :-(

The line:

   IODIR1= 1<<24;          // Set GPIO1.24 = Output

Should (probably) have been:

   IODIR1|= 1<<24;         // Set GPIO1.24 = Output

If anyone has a good idea on how I recover my board (i.e. JTAG) I
would be very grateful. Mabye it can be done without any hardware
changes or the Philips ISP (as I don't have one)?

Best regards,

Peter

--- In lpc2000@yahoogroups.com, "pfavr2" <pfavr2@...> wrote:
>
> Hi,
>
> Thanks Andy it works now on my Olicom LPC2148. Here is my code for
> reference:
>
> #include "LPC214x.h"
>
> volatile unsigned int j=1000000;
>
> int main(void)
> {
>   unsigned int i;
>
>   PINSEL2&= 0xfffffff3;   // Make sure GPIO1.24 = GPIO Function
>   IODIR1= 1<<24;          // Set GPIO1.24 = Output
>   j=5000000;
>   while(1) {
>     IOCLR1 = 1<<24;
>     for(i=0;i<j;i++);
>     IOSET1 = 1<<24;
>     for(i=0;i<j;i++);
>   }
> }
>
>
> --- In lpc2000@yahoogroups.com, "Andrew Berney" <amb@> wrote:
> > Kind of right... but Pinsel2 should be: &= 0xFFFFFFF3;
> >
> > bits 0..1 are reserved with reset value 0x0 (obviously And them with
> 1 to
> > preserve)
> > bit 2 is 0 for GPIO for P1.16-31 and 1 to turn on Debug Port
> > bit 3 is 0 for GPIO for P1.16-31 and 1 to turn on Trace
> >
> > table 63 in the manual for pinsel2.
> >
> > Andy
>









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