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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: RTC problem

2005-12-01 by r_bottleneck

Hello,

I still have the problem that the RTC is not working on my new board.
However, I found,  the RTC is working with internal clock, in opposite 
I mentioned in my start message. So there must be a problem with the
32Khz oscillator internally or externally.

I can not swap the LPC2138, because I have just a single board and
I dont want to kill it while un-soldering the CPU.

Is it possible to do a basic test to check if the oscillator is ok ? 
I mean it must be something like an inverter and there is an input and
output pin.

Does anbody know how the oscillator of the LPC2138 internally looks 
like? 

What can prevent the 32kHz oscillator from working internally?

Thanks

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