Lpc2000

Em Seg 27 Fev 2006 09:05, Michal Krestan escreveu:
> I need to help with programming LPC2106 via LPC2000 flash utility. I've got
> board with one LPC2106 connected via UART0 to COM1. P0.14 is pulled low,
> power supply pins are in limits but I can't sucesfully connect with flash
> utility. Always I get message "Cannot communicate with test board". X1 and
> X2 pins are connected to 7.3728MHz resonator. If I measure data between PC
> and LPC2106 it has some response on flash utility requests, but no
> success:-( I had several pcs of this hardware working, but this one doesn't
> work. I've changed LPC2106 with new one but still with the same result. 
> Does anybody have idea how to fix this problem?
>
>             Michal

Maybe isnt the frequency of your crystal?
The datasheet says the LPC2106 must have a crystal from 10 to 25MHz, and maybe 
the Flash program expects at minimum a 10MHz crystal to program the UART0 of 
the LPC.
I suggest to you to change the crystal to see if it works.