From 76dd4facb9b1cf81e7f7a262c931adffb126b382 Mon Sep 17 00:00:00 2001 From: robert-hh Date: Wed, 10 Jul 2024 09:44:17 +0200 Subject: [PATCH] docs/mimxrt/quickref: Add a note about machine.RTC() subseconds. Telling that subseconds is not supported and returns always 0. This was changed in 913f9ad5ad9bb446c6e4310b6b5eda310098a1cf. Signed-off-by: robert-hh --- docs/mimxrt/quickref.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/docs/mimxrt/quickref.rst b/docs/mimxrt/quickref.rst index 79d2a1551..cfd060505 100644 --- a/docs/mimxrt/quickref.rst +++ b/docs/mimxrt/quickref.rst @@ -438,6 +438,10 @@ The i.MXRT MCU supports battery backup of the RTC. By connecting a battery of current drawn from the battery is ~20µA, which is rather high. A CR2032 coin cell will last for about one year. +Note: In v1.23.0 the support for subseconds was removed. When reading the RTC, 0 will +be returned as value for subsecond, When setting the RTC time, the subsecond +field is ignored. The RTC itself does not provide a microsecond value. + SD card -------