Back in May of 2022, I purchased a number of BlueNRG-LP-DK development boards (STEVAL-IDB011V2-C) for Bluetooth Low Energy development. Things went fine (in a manner of speaking of course) .
Recently I tried to use these boards with its RTC (Real Time Clock) configured with the LSE (Low Speed external) / 32.768 KHz Oscillator and I simply could not get the RTC configured with the LSE Oscillator to work. What I mean whenever I tried to configure the LSE/ 32.768 KHz Oscillator as the source for the RTC, it was as though the RTC had nothing hooked up to it.
Before anyone asks, I did use the Periph_Examples -> HAL -> RTC sample code provided by ST extensively and stepped through a lot of HAL code.
Here are my two (simple) questions:
1) Was there anything peculiar about this particular batch/lot/vintage of BlueNRG-LP's regarding the RTC that anyone knows about? Given I previously had hardware problems with the PDM microphone on that board vintage, I was wondering if the that there were additional issues that I could not find in the BlueNRG-LP-DK errata.
2) As a follow up, has anyone heard of \ experienced similar RTC issues with the BlueNRG-LP rebranded STM2WB0x hardware?
JDUBYA
