Lpc2000

Lowry, Jeff wrote:

>I've had this happen.  What I had to do was reset the chip with P0.14 low to force it into ISP mode.  I then manually did the ISP commands via RX0/TX0 to erase the chip.  Once erased the JTAG will take control ok.
>
>  
>
Yeah, that is what I ultimately had to do.

Interesting that the BDI2000 would not stop the LPC2138 from executing 
code.  According to the manual, the "STARTUP RESET" is supposed to stop 
it from executing any instructions out of "RESET HARD 500".  I did not 
use the "WAIT".

This really scared me, since this is the first I've build anything with 
an LCP2xxx chip in it, I was afraid that something nasty had happened 
(burnt core).

TomW



-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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