ErrorStatus RTC_SetDate()

in CORTEX_M0_FT32F072_KEIL/Source/Libraries/FT32F0xx_Driver/Src/ft32f0xx_rtc.c [605:687]

• 67 lines of code
• 8 McCabe index (conditional complexity)

ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct)
{
  uint32_t tmpreg = 0;
  ErrorStatus status = ERROR;
  
  /* Check the parameters */
  assert_param(IS_RTC_FORMAT(RTC_Format));

  if ((RTC_Format == RTC_Format_BIN) && ((RTC_DateStruct->RTC_Month & 0x10) == 0x10))
  {
    RTC_DateStruct->RTC_Month = (RTC_DateStruct->RTC_Month & (uint32_t)~(0x10)) + 0x0A;
  }  
  if (RTC_Format == RTC_Format_BIN)
  {
    assert_param(IS_RTC_YEAR(RTC_DateStruct->RTC_Year));
    assert_param(IS_RTC_MONTH(RTC_DateStruct->RTC_Month));
    assert_param(IS_RTC_DATE(RTC_DateStruct->RTC_Date));
  }
  else
  {
    assert_param(IS_RTC_YEAR(RTC_Bcd2ToByte(RTC_DateStruct->RTC_Year)));
    tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Month);
    assert_param(IS_RTC_MONTH(tmpreg));
    tmpreg = RTC_Bcd2ToByte(RTC_DateStruct->RTC_Date);
    assert_param(IS_RTC_DATE(tmpreg));
  }
  assert_param(IS_RTC_WEEKDAY(RTC_DateStruct->RTC_WeekDay));

  /* Check the input parameters format */
  if (RTC_Format != RTC_Format_BIN)
  {
    tmpreg = ((((uint32_t)RTC_DateStruct->RTC_Year) << 16) | \
              (((uint32_t)RTC_DateStruct->RTC_Month) << 8) | \
              ((uint32_t)RTC_DateStruct->RTC_Date) | \
              (((uint32_t)RTC_DateStruct->RTC_WeekDay) << 13)); 
  }  
  else
  {
    tmpreg = (((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Year) << 16) | \
              ((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Month) << 8) | \
              ((uint32_t)RTC_ByteToBcd2(RTC_DateStruct->RTC_Date)) | \
              ((uint32_t)RTC_DateStruct->RTC_WeekDay << 13));
  }

  /* Disable the write protection for RTC registers */
  RTC->WPR = 0xCA;
  RTC->WPR = 0x53;

  /* Set Initialization mode */
  if (RTC_EnterInitMode() == ERROR)
  {
    status = ERROR;
  } 
  else
  {
    /* Set the RTC_DR register */
    RTC->DR = (uint32_t)(tmpreg & RTC_DR_RESERVED_MASK);

    /* Exit Initialization mode */
    RTC_ExitInitMode(); 

    /* If  RTC_CR_BYPSHAD bit = 0, wait for synchro else this check is not needed */
    if ((RTC->CR & RTC_CR_BYPSHAD) == RESET)
    {
      if (RTC_WaitForSynchro() == ERROR)
      {
        status = ERROR;
      }
      else
      {
        status = SUCCESS;
      }
    }
    else
    {
      status = SUCCESS;
    }
  }
  /* Enable the write protection for RTC registers */
  RTC->WPR = 0xFF;
  
  return status;
}