Lpc2000

Hi, and thank you for your post.  I am working with the LPC2138 and am having trouble reproducing the very low power consumption you achieved and wonder if you could share your experience.  In particular, I have a minimum parts count system (ARM, crystals, minimal caps, 100K BSL pullup, 10K Reset Pullup, 10K TCK pulldown, and that's about it.  When turning off all peripherals and placing the CPU in powerdown mode, I am still seeing about 1mA of current consumed.  I've tried a number of tricks on the GPIO including setting TCK and BSL as outputs and setting them low (clear) so that there should be no/minimal power leaked through the pull up/downs.  I have nothing connected to P1.16:31 except the pulldown on TCK, so there should be little or no leakage through the internal pullups.  Can you share how you configured your ARM to get the sub-100uA consumption?  Thanks!

Regards,
Dave Albert