Not able to do the calibration of the RTC on STM32F103C8T6

[ABhag]

We are trying to implement RTC on STM32F103C8T6 bluepill using arduino IDE while 

implementing this we are not able to do the calibration of 

the RTC on STM32F103C8T6blue bill using Arduino IDE, can anyone suggest a possible solution for this problem.

[waclawek.jan]

What do you exactly mean by calibration?

The RTC in 'F103 does not support calibration in hardware, see RTC chapter in RM0008.

JW

[Tesla DeLorean]

Seem to recall that the clock feeds out the MCO or an RTC pin so you can measure it.

[Tesla DeLorean]

NOT to use Arduino IDE? But rather look at SPL or HAL abstractions.