[ECOS] STM32 LSI calibration

[Philipp Meier]

Has anybody done LSI calibration for eCos (as described in STM32 
reference manual revision 14 in chapter 7.2.5 "LSI clock") using TIM5 
channel4 and TIM5 Capture/compare?

I guess Cyg_WallClock::init_hw_seconds (in file stm32_wallclock.cxx) 
would be the function where to implement it (if it needs to be done once 
at system startup).

Thank's for any help.

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