Posted on April 14, 2015 at 17:03How can I disable RTC 512Hz signal and return PC13 as I/O ??I programed the PC13 as ''GPIO_AF_RTC_50Hz''  to calibrate the 512Hz signal of internal RTC, but now I cant disable it to use PC13 as I/O, The STM32F205 doe...

Posted on April 14, 2015 at 16:51How can I disable RTC 512Hz signal and return PC13 as I/O ??I programed the PC13 as ''GPIO_AF_RTC_50Hz''  to calibrate the 512Hz signal of internal RTC, but now I cant disable it to use PC13 as I/O, The STM32F205 doe...

Posted on September 06, 2013 at 14:32I'm trying to calibrate the difference of 512Hz at the out  where PC13 possess 511.936Hz which causes about 10 seconds per day delay in the RTC. I'm making the form below, I wonder where I'm going wrong, not beca...

Posted on August 06, 2013 at 17:24I can not find examples in C code of  how to use the SRAM of STM32F205 as Backup (as EEPROM), someone could help me. I searched the ST site and Google