RTC in LPC4337

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RTC in LPC4337

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NXP Employee
NXP Employee

RTC in LPC4337 requires 2 secs to be able to write to the RTC registers. Can we speed up this process like to a few miliseconds?

Thanks,

Amit.

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1 Reply

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NXP Employee
NXP Employee

Hi Amit,

This should be the expected time, the write operations to RTC registers are buffered and only become effective after the next 1 Hz clock pulse of the RTC. If the CPU attempts another write before the previous write has taken effect inside the RTC, the CPU will stall until the next 1 Hz clock pulse.


Hope it helps!

Best Regards,
Carlos Mendoza
Technical Support Engineer

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