Kris One quick point. The LPC does not like a rail-to-rail input clock. I believe the max level is the same as the core voltage (1.8v) and the minimum is 200mV. Also, the signal should be capacitively coupled. It probably wouldn't hurt if you had the RTCLK signal pinned out on your JTAG connector either and used it. Otherwise debugging is going to be very slow. -Bill the ARM Patch
Message
Re: [lpc2000] Re: injecting an external 4 MHz clk into LPC2000, and using PLL - anyone done similar ?
2004-05-10 by Bill Knight