I've tried removing the resistor on RTCK, but the difference in current draw was negligible. Thx for the thoughts. --- In lpc2000@yahoogroups.com, "Bill Knight" <BillK@t...> wrote: > Is the JTAG enabled? If so, maybe tie the gound end of the JTAG > enable resistor to a pin on the JTAG connector that will supply > ground only when the connector is present. Then set the pins to > GPIO outputs of the proper voltage in software for when the JTAG > is not enabled. > > Anyway, just a thought. > > Regards > -Bill Knight > theARMPatch > > > On Wed, 06 Oct 2004 14:24:37 -0000, tynerae wrote: > > I am working on a design that uses an LPC2212 and need to have power > consumption minimized. According to the datasheet, the 1.8V draws > ~10uA in sleep mode, but I'm seeing 40uA. The EVBA7 comes in at 5uA > using same code. And worse, I'm not able to get the 3.3V draw under > 1.2mA(EVBA7 is 200uA.) It needs to be pretty much nil. I have turned > off all peripheral power using REG(SYSCON_PCONP) = 0x00000000; I > have been able to reduce the 3.3V draw from 3.5mA by turning off the > external memory controller and disconnecting the memory bus and > debug port using PINSEL2. I've tried to set all peripheral functions > to GPIO. I don't think I'm driving anything else on the board with > 3.3V. I've pulled practically every load to check, but no dice. > Any thoughts/ideas? > Thx
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Re: LPC2212 Power Hungry?
2004-10-06 by tynerae
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