Lpc2000

Hi John,

  First, no inverter is needed.

  Next, Hold both buttons down, then release the reset while still
holding the P0.14 line.

regards,
Charles

--- In lpc2000@yahoogroups.com, jstamos111@... wrote:
>
> Hey All,
> 
> I\'m having trouble getting the ISP to work with the Philips Flash
Utility for a board I made that uses the LPC2106 processor.  I\'ve
also tried using hyperterminal and sending \'?\', but get no response.
> 
> I\'ve connected the UART0 send and recv to an inverter and then to a
max233.  Anyone know if this is right?  Originally I did not have the
inverter, but I noticed that the max233 inverts its outputs.
> 
> I\'m also wondering if perhaps I\'m not holding the proper buttons
down.  I have two buttons that when pressed pull their respective pins
low on the LPC processor.  The buttons are on the ~RST and P0.14 pins.
 When I go to use the flash utility or a terminal I know I hit the
reset button, do I also need to hit the P0.14 button.  Do I hold these
down when I go to read the device ID or when I start sending the
question marks?
> 
> I am pretty sure I\'ve got the settings right on the Philips
utility.  My processor\'s clock is 10Mhz and I set that.  I set the
baud rate to 9600 as well.  When I use HyperTerminal I set the bits
per second to 9600, the databits to 8, parity to none, stop bits to 1,
and flow control to none.
> 
> Any idea why I might be having this problem?  Anything else you need
to know?
> 
> Thanks.
> - John
>