401 lines
12 KiB
C
401 lines
12 KiB
C
/**
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******************************************************************************
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* @file main.c
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* @author MCD Application Team
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* @version V1.0.0
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* @date 18-April-2011
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* @brief Main program body
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******************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx.h"
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#include "usart.h"
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#include <string.h>
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#include <stdio.h>
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Uncomment the corresponding line to select the RTC Clock source */
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#define RTC_CLOCK_SOURCE_LSE /* LSE used as RTC source clock */
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/* #define RTC_CLOCK_SOURCE_LSI */ /* LSI used as RTC source clock. The RTC Clock
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may varies due to LSI frequency dispersion. */
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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RTC_InitTypeDef RTC_InitStructure;
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RTC_TimeTypeDef RTC_TimeStructure;
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RTC_DateTypeDef RTC_DateStructure;
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RTC_TimeTypeDef RTC_TimeStampStructure;
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RTC_DateTypeDef RTC_TimeStampDateStructure;
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__IO uint32_t AsynchPrediv = 0, SynchPrediv = 0;
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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void RTC_Config(void);
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void RTC_TimeRegulate(void);
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void RTC_TimeShow(void);
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void RTC_DateShow(void);
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void RTC_TimeStampShow(void);
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uint8_t USART_Scanf(uint32_t MinValue, uint32_t MaxValue);
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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uint8_t Rtctmp=0;
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USART_Configuration();
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/* Output a message on Hyperterminal using printf function */
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printf("\n\r *********************** RTC Time Stamp Example ***********************\n\r");
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if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x32F2)
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{
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/* RTC configuration */
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RTC_Config();
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/* Configure the RTC data register and RTC prescaler */
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RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
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RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
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RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
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/* Check on RTC init */
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if (RTC_Init(&RTC_InitStructure) == ERROR)
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{
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printf("\n\r /!\\***** RTC Prescaler Config failed ********/!\\ \r\n");
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}
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/* Configure the time register */
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RTC_TimeRegulate();
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}
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else
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{
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/* Check if the Power On Reset flag is set */
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if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
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{
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printf("\r\n Power On Reset occurred....\r\n");
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}
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/* Check if the Pin Reset flag is set */
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else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
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{
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printf("\r\n External Reset occurred....\r\n");
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}
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printf("\r\n No need to configure RTC....\r\n");
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/* Enable the PWR clock */
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
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/* Allow access to RTC */
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PWR_BackupAccessCmd(ENABLE);
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/* Wait for RTC APB registers synchronisation */
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RTC_WaitForSynchro();
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/* Clear the RTC Alarm Flag */
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RTC_ClearFlag(RTC_FLAG_ALRAF);
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/* Display the RTC Time/Date and TimeStamp Time/Date */
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RTC_TimeShow();
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RTC_DateShow();
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RTC_TimeStampShow();
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}
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while (1)
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{
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RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
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RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);
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if(Rtctmp != RTC_TimeStructure.RTC_Seconds)
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{
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printf("The Date : Y:20%0.2d - M:%0.2d - D:%0.2d - W:%0.2d\r\n", RTC_DateStructure.RTC_Year,RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Date,RTC_DateStructure.RTC_WeekDay);
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printf("The Time : %0.2d:%0.2d:%0.2d \r\n\r\n", RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
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(void)RTC->DR;
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}
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Rtctmp = RTC_TimeStructure.RTC_Seconds;
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}
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}
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/**
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* @brief Configure the RTC peripheral by selecting the clock source.
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* @param None
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* @retval None
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*/
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void RTC_Config(void)
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{
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/* Enable the PWR clock */
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
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/* Allow access to RTC */
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PWR_BackupAccessCmd(ENABLE);
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#if defined (RTC_CLOCK_SOURCE_LSI) /* LSI used as RTC source clock*/
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/* The RTC Clock may varies due to LSI frequency dispersion. */
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/* Enable the LSI OSC */
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RCC_LSICmd(ENABLE);
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/* Wait till LSI is ready */
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while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
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{
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}
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/* Select the RTC Clock Source */
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RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
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SynchPrediv = 0xFF;
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AsynchPrediv = 0x7F;
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#elif defined (RTC_CLOCK_SOURCE_LSE) /* LSE used as RTC source clock */
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/* Enable the LSE OSC */
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RCC_LSEConfig(RCC_LSE_ON);
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/* Wait till LSE is ready */
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while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
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{
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}
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/* Select the RTC Clock Source */
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RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
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SynchPrediv = 0xFF;
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AsynchPrediv = 0x7F;
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#else
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#error Please select the RTC Clock source inside the main.c file
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#endif /* RTC_CLOCK_SOURCE_LSI */
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/* Enable the RTC Clock */
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RCC_RTCCLKCmd(ENABLE);
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/* Wait for RTC APB registers synchronisation */
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RTC_WaitForSynchro();
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/* Enable The TimeStamp */
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RTC_TimeStampCmd(RTC_TimeStampEdge_Falling, ENABLE);
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}
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/**
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* @brief Returns the time entered by user, using Hyperterminal.
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* @param None
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* @retval None
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*/
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void RTC_TimeRegulate(void)
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{
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uint32_t tmp_hh = 0xFF, tmp_mm = 0xFF, tmp_ss = 0xFF;
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printf("\r\n==============Time Settings=====================================\r\n");
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RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
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printf("\r\n Please Set Hours");
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while (tmp_hh == 0xFF)
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{
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tmp_hh = USART_Scanf(0, 23);
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RTC_TimeStructure.RTC_Hours = tmp_hh;
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}
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printf(": %0.2d\n", tmp_hh);
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printf("\r\n Please Set Minutes");
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while (tmp_mm == 0xFF)
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{
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tmp_mm = USART_Scanf(0, 59);
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RTC_TimeStructure.RTC_Minutes = tmp_mm;
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}
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printf(": %0.2d\n", tmp_mm);
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printf("\r\n Please Set Seconds");
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while (tmp_ss == 0xFF)
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{
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tmp_ss = USART_Scanf(0, 59);
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RTC_TimeStructure.RTC_Seconds = tmp_ss;
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}
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printf(": %0.2d\n", tmp_ss);
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/* Configure the RTC time register */
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if(RTC_SetTime(RTC_Format_BIN, &RTC_TimeStructure) == ERROR)
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{
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printf("\r\n>> !! RTC Set Time failed. !! <<\r\n");
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}
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else
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{
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printf("\r\n>> !! RTC Set Time success. !! <<\r\n");
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RTC_TimeShow();
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/* Indicator for the RTC configuration */
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RTC_WriteBackupRegister(RTC_BKP_DR0, 0x32F2);
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}
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tmp_hh = 0xFF;
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tmp_mm = 0xFF;
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tmp_ss = 0xFF;
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printf("\r\n==============Date Settings=====================================\r\n");
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printf("\r\n Please Set WeekDay (01-07)");
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while (tmp_hh == 0xFF)
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{
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tmp_hh = USART_Scanf(1, 7);
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RTC_DateStructure.RTC_WeekDay = tmp_hh;
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}
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printf(": %0.2d\n", tmp_hh);
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tmp_hh = 0xFF;
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printf("\r\n Please Set Date (01-31)");
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while (tmp_hh == 0xFF)
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{
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tmp_hh = USART_Scanf(1, 31);
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RTC_DateStructure.RTC_Date = tmp_hh;
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}
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printf(": %0.2d\n", tmp_hh);
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printf("\r\n Please Set Month (01-12)");
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while (tmp_mm == 0xFF)
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{
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tmp_mm = USART_Scanf(1, 12);
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RTC_DateStructure.RTC_Month = tmp_mm;
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}
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printf(": %0.2d\n", tmp_mm);
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printf("\r\n Please Set Year (00-99)");
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while (tmp_ss == 0xFF)
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{
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tmp_ss = USART_Scanf(0, 99);
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RTC_DateStructure.RTC_Year = tmp_ss;
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}
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printf(": %0.2d\n", tmp_ss);
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/* Configure the RTC date register */
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if(RTC_SetDate(RTC_Format_BIN, &RTC_DateStructure) == ERROR)
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{
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printf("\r\n>> !! RTC Set Date failed. !! <<\r\n");
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}
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else
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{
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printf("\r\n>> !! RTC Set Date success. !! <<\r\n");
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RTC_DateShow();
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/* Indicator for the RTC configuration */
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RTC_WriteBackupRegister(RTC_BKP_DR0, 0x32F2);
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}
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}
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/**
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* @brief Display the current time on the Hyperterminal.
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* @param None
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* @retval None
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*/
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void RTC_TimeShow(void)
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{
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/* Get the current Time and Date */
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RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
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printf("\r\n\r\n============== Current Time Display ============================\n");
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printf("\r\n The current time (Hour-Minute-Second) is : %0.2d:%0.2d:%0.2d \n", RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
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/* Unfreeze the RTC DR Register */
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(void)RTC->DR;
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}
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/**
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* @brief Display the current date on the Hyperterminal.
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* @param None
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* @retval None
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*/
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void RTC_DateShow(void)
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{
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/* Get the current Date */
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RTC_GetDate(RTC_Format_BIN, &RTC_DateStructure);
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printf("\r\n============== Current Date Display ============================\n");
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printf("\r\n The current date (WeekDay-Date-Month-Year) is : %0.2d-%0.2d-%0.2d-%0.2d \n", RTC_DateStructure.RTC_WeekDay, RTC_DateStructure.RTC_Date, RTC_DateStructure.RTC_Month, RTC_DateStructure.RTC_Year);
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}
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/**
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* @brief Display the current TimeStamp (time and date) on the Hyperterminal.
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* @param None
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* @retval None
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*/
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void RTC_TimeStampShow(void)
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{
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/* Get the current TimeStamp */
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RTC_GetTimeStamp(RTC_Format_BIN, &RTC_TimeStampStructure, &RTC_TimeStampDateStructure);
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printf("\r\n==============TimeStamp Display (Time and Date)=================\n");
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printf("\r\n The current time stamp time (Hour-Minute-Second) is : %0.2d:%0.2d:%0.2d \n", RTC_TimeStampStructure.RTC_Hours, RTC_TimeStampStructure.RTC_Minutes, RTC_TimeStampStructure.RTC_Seconds);
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printf("\r\n The current timestamp date (WeekDay-Date-Month) is : %0.2d-%0.2d-%0.2d \n", RTC_TimeStampDateStructure.RTC_WeekDay, RTC_TimeStampDateStructure.RTC_Date, RTC_TimeStampDateStructure.RTC_Month);
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}
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/**
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* @brief Gets numeric values from the hyperterminal.
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* @param MinValue: minimum value to be used.
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* @param MaxValue: maximum value to be used.
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* @retval None
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*/
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uint8_t USART_Scanf(uint32_t MinValue, uint32_t MaxValue)
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{
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uint32_t index = 0;
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uint32_t tmp[2] = {0, 0};
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while (index < 2)
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{
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/* Loop until RXNE = 1 */
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while (USART_GetFlagStatus(Open_USART, USART_FLAG_RXNE) == RESET)
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{}
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tmp[index++] = (USART_ReceiveData(Open_USART));
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if ((tmp[index - 1] < 0x30) || (tmp[index - 1] > 0x39))
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{
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printf("\r\n Please enter valid number between 0 and 9\n");
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index--;
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}
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}
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/* Calculate the Corresponding value */
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index = (tmp[1] - 0x30) + ((tmp[0] - 0x30) * 10);
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/* Checks the value */
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if ((index < MinValue) || (index > MaxValue))
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{
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printf("\r\n Please enter valid number between %d and %d\n", MinValue, MaxValue);
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return 0xFF;
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}
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return index;
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t* file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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