I have a design where the LPC1549 is a possible candidate. In the errata sheet for the part, the RTC seems to be more or less non-functional, at least when it comes to the COUNT register (1Hz):
Is it safe to use the high-resolution/wake-up timer in this part (and not relying on the 1Hz COUNT function) ?
Are there not any plan to fix the RTC in the LPC15xx series ?
Solved! Go to Solution.
Yes, The issue seems to be related to some glitch when the internal 16-bit ripple count wraps from 0x7FFF to 0x8000 and from 0xFFFF to 0x0000.
Have a great day,
Sol
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Hi,
The report Errata, it is only on the Digital Counter of the RTC, the time base oscillator it is stable. Unfortunately there is not plan to fix it.
Have a great day,
Sol
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Thanks Sol,
so you confirm that the high-resolution/wake-up timer in the RTC block is NOT affected by this errata ?
(but only the COUNT register is affected)
Yes, The issue seems to be related to some glitch when the internal 16-bit ripple count wraps from 0x7FFF to 0x8000 and from 0xFFFF to 0x0000.
Have a great day,
Sol
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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