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-/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name          : readme.txt
-* Author             : MCD Application Team
-* Version            : V2.0.1
-* Date               : 06/13/2008
-* Description        : Description of the RTC LSI_Calib Example.
-********************************************************************************
-* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
-* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
-* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
-* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
-* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
-* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
-*******************************************************************************/
-
-Example description
-===================
-This example demonstrates and explains how to use the LSI clock source auto
-calibration to get a precise RTC clock. 
-As an application example, it demonstrates how to configure the TIM5 timer
-internally connected to LSI clock output, in order to adjust the RTC prescaler. 
-
-The Low Speed External (LSI) clock is used as RTC clock source.
-After reset, the RTC prescaler is set with the default value (40000). 
-The inaccuracy of the LSI clock causes the Second signal to be inaccurate. This
-signal is output on the Tamper pin (PC.13) and can be measured by on oscilloscope
-or a frequencymeter.
-
-The program waits until the PG.08 pin level goes low (push Key button on STM3210E-EVAL
-board) to begin the auto calibration procedure:
- - Configure the TIM5 to remap internally the TIM5 Channel 4 Input Capture to the
-   LSI clock output.
- - Enable the TIM5 Input Capture interrupt: after one cycle of LSI clock, the
-   period value is stored in a variable and compared to the HCLK clock to get
-   its real value.
- - The RTC prescaler is adjusted with this LSI frequency value so that the RTC
-   Second value become more accurate.
- - When calibration is done a led connected to PF.07 is turned ON to indicate the
-    end of this operation. At this moment, you can  monitor the Second signal on
-    an oscilloscope to measure its accuracy again.
-
-The Seconds signal can be monitored either on Tamper pin or on a specific PF.06
-pin toggled into the RTC Seconds interrupt service routine.
-    
- 
-Directory contents
-==================
-stm32f10x_conf.h     Library Configuration file
-stm32f10x_it.c       Interrupt handlers
-stm32f10x_it.h       Header for stm32f10x_it.c
-main.c               Main program
-
-
-Hardware environment
-====================
-This example runs on STMicroelectronics STM3210E-EVAL evaluation board and can be 
-easily tailored to any other hardware.
-
-Use LD1 and LD2 leds connected respectively to PF.06 and PF.07 pins, and the Key 
-push button connected to PG.08 pin. 
-    
-    
-How to use it
-=============
-In order to make the program work, you must do the following :
-- Create a project and setup all your toolchain's start-up files
-- Compile the directory content files and required Library files :
-  + stm32f10x_lib.c
-  + stm32f10x_gpio.c
-  + stm32f10x_rcc.c
-  + stm32f10x_rtc.c
-  + stm32f10x_tim.c
-  + stm32f10x_bkp.c
-  + stm32f10x_pwr.c
-  + stm32f10x_nvic.c
-  + stm32f10x_flash.c
-  
-- Link all compiled files and load your image into target memory
-- Run the example
-
-
-******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******