lpcware

Watchdog timer accuracy

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by 1234567890 on Mon Dec 02 13:29:25 MST 2013
Hi,

datasheet for LPC11Cxx says: Accuracy of watchdog oscillator is +/- 40 % between -40 to 85 °C. Not such a big problem yet as I can calibrate (e.g. with the 1% IRC). But unfortunately there is no information how temperature and voltage influences the frequency (like the figure for IRC).
Has anyone driven tests or more information about the dependencies?
And is it stable without any changes in temperature and voltage (what I assume)?

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