// Simply print to the debug console a string based on the type of reset.
// ============================================================================
void vDebugPrintResetType( void ) {
if ( PWR_GetFlagStatus( PWR_FLAG_WU ) )
vDebugPrintf( "PWR: Wake Up flag\r\n" );
if ( PWR_GetFlagStatus( PWR_FLAG_SB ) )
vDebugPrintf( "PWR: StandBy flag.\r\n" );
if ( PWR_GetFlagStatus( PWR_FLAG_PVDO ) )
vDebugPrintf( "PWR: PVD Output.\r\n" );
if ( PWR_GetFlagStatus( PWR_FLAG_BRR ) )
vDebugPrintf( "PWR: Backup regulator ready flag.\r\n" );
if ( PWR_GetFlagStatus( PWR_FLAG_REGRDY ) )
vDebugPrintf( "PWR: Main regulator ready flag.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_BORRST ) )
vDebugPrintf( "RCC: POR/PDR or BOR reset\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_PINRST ) )
vDebugPrintf( "RCC: Pin reset.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_PORRST ) )
vDebugPrintf( "RCC: POR/PDR reset.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_SFTRST ) )
vDebugPrintf( "RCC: Software reset.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_IWDGRST ) )
vDebugPrintf( "RCC: Independent Watchdog reset.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_WWDGRST ) )
vDebugPrintf( "RCC: Window Watchdog reset.\r\n" );
if ( RCC_GetFlagStatus( RCC_FLAG_LPWRRST ) )
vDebugPrintf( "RCC: Low Power reset.\r\n" );
}
void PVDTset()
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
PWR_PVDLevelConfig(PWR_PVDLevel_2V8);
//PWR_PVDLevelConfig(PWR_PVDLevel_2V6);
PWR_PVDCmd(ENABLE);
while(1)
{
if(PWR_GetFlagStatus(PWR_FLAG_PVDO))
{
uart_printf("VDD<2.8V=PWR->CSR\r\n");
break;
}
}
uart_printf("PWR->CSR=0x%x\r\n",PWR->CSR);
while(1)
{
if(PWR_GetFlagStatus(PWR_FLAG_PVDO)==0)
{
uart_printf("VDD>2.8V=PWR->CSR\r\n");
break;
}
}
}
void RTC_Config(void)
{
/*后备寄存器1中，存了一个特殊字符0xA5A5
第一次上电或后备电源掉电后，该寄存器数据丢失，
表明RTC数据丢失，需要重新配置 */
if(BKP_ReadBackupRegister(BKP_DR1) != 0xA5A5) //检查是否第一次上电或后备电池已经掉电，
{
Write_Log("Backup VBAT PowerDown or First time PowerUp,Initialize RTC\r\n");
RTC_Configuration();
BKP_WriteBackupRegister(BKP_DR1, 0xA5A5);
time_now.tm_year = 2011;
time_now.tm_mon = 10; //月份表示为0~11
time_now.tm_mday = 13;
time_now.tm_hour = 13;
time_now.tm_min = 16;
time_now.tm_sec = 38;
Time_SetCalendarTime(time_now);//设置初始时间
}
else //若后备寄存器没有掉电，则无需重新配置RTC
{
Write_Log("Backup VBAT Keep, Don't RTC Configuralation\r\n");
//等待RTC与APB同步
RTC_WaitForSynchro();
RTC_WaitForLastTask();
//使能秒中断
RTC_ITConfig(RTC_IT_SEC, ENABLE);
RTC_WaitForLastTask();
}
//这里我们可以利用RCC_GetFlagStatus()函数查看本次复位类型
if (RCC_GetFlagStatus(RCC_FLAG_PORRST) != RESET)
{
por_rst_flag = 1;
Write_Log("PowerUp Reset\r\n");
}
else if (RCC_GetFlagStatus(RCC_FLAG_PINRST) != RESET)
{
pin_rst_flag = 1;
Write_Log("pin Reset\r\n");
}
else if(PWR_GetFlagStatus(PWR_FLAG_WU)!= RESET) //wakeup唤醒
{
Write_Log("WakeUp...\r\n");
}
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) //检查是否由待机模式下唤醒，如是则不需要配置RTC
/* System resumed from STANDBY mode */
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
//清除RCC中复位标志
RCC_ClearFlag();
return;
}
/*******************************************************************************
* Function Name : RTCAlarm_IRQHandler
* Description : This function handles RTC Alarm interrupt request.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void RTCAlarm_IRQHandler(void)
{
if(RTC_GetITStatus(RTC_IT_ALR) != RESET)
{
SPARK_WLAN_SLEEP = 0;
/* Clear EXTI line17 pending bit */
EXTI_ClearITPendingBit(EXTI_Line17);
/* Check if the Wake-Up flag is set */
if(PWR_GetFlagStatus(PWR_FLAG_WU) != RESET)
{
/* Clear Wake Up flag */
PWR_ClearFlag(PWR_FLAG_WU);
}
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
/* Clear RTC Alarm interrupt pending bit */
RTC_ClearITPendingBit(RTC_IT_ALR);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
}
int HAL_Feature_Set(HAL_Feature feature, bool enabled)
{
switch (feature)
{
case FEATURE_RETAINED_MEMORY:
{
FunctionalState state = enabled ? ENABLE : DISABLE;
// Switch on backup SRAM clock
// Switch on backup power regulator, so that it survives the deep sleep mode,
// software and hardware reset. Power must be supplied to VIN or VBAT to retain SRAM values.
PWR_BackupRegulatorCmd(state);
// Wait until backup power regulator is ready, should be fairly instantaneous... but timeout in 10ms.
if (state == ENABLE) {
system_tick_t start = HAL_Timer_Get_Milli_Seconds();
while (PWR_GetFlagStatus(PWR_FLAG_BRR) == RESET) {
if (HAL_Timer_Get_Milli_Seconds() - start > 10UL) {
return -2;
}
};
}
return 0;
}
}
return -1;
}
/**
* @brief Enters MCU in STANDBY mode. The wake-up from STANDBY mode is performed
* when a rising edge is detected on WakeUp pin.
* @param None
* @retval None
*/
void LowPower_EnterSTANDBYMode_WAKEUP_1(void)
{
// LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Back Color */
// LCD_SetBackColor(LCD_COLOR_BLUE);
/* Set the LCD Text Color */
// LCD_SetTextColor(LCD_COLOR_WHITE);
// LCD_DisplayStringLine(LCD_LINE_7, " MCU in STANDBY Mode");
// LCD_DisplayStringLine(LCD_LINE_8, " To exit press SEL ");
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
RTC_WaitForSynchro();
}
RTC_AlarmCmd(RTC_Alarm_A, DISABLE);
/* Enable WakeUp pin */
PWR_WakeUpPinCmd(PWR_WakeUpPin_1, ENABLE);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f30x.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f30x.c file
*/
/* PVD configuration */
PWR_Config();
/* SYSCFG configuration */
SYSCFG_Config();
/* TIM1 channels Configuration in PWM mode */
TIM_Config();
/* Wait till a PVD event is detected */
while(PWR_GetFlagStatus(PWR_FLAG_PVDO) == RESET);
/* Infinite loop */
while (1)
{
}
}
bool HAL_Feature_Get(HAL_Feature feature)
{
switch (feature)
{
// Warm Start: active when resuming from Standby mode (deep sleep)
case FEATURE_WARM_START:
{
return (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET);
}
// Retained Memory: active when backup regulator is enabled
case FEATURE_RETAINED_MEMORY:
{
return (PWR_GetFlagStatus(PWR_FLAG_BRR) != RESET);
}
}
return false;
}
/**
* @brief Selects HSE as System clock source and configure HCLK, PCLK2 and PCLK1 prescalers.
* @param None
* @retval None
*/
void SetHCLKTo8(void)
{
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
/* Disable Prefetch Buffer */
FLASH_PrefetchBufferCmd(DISABLE);
/* Disable 64-bit access */
FLASH_ReadAccess64Cmd(DISABLE);
/* Enable the PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Select the Voltage Range 2 (1.5V) */
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range2);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET)
{}
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* Select HSE as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSE);
/* Wait till HSE is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x08)
{}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock configuration.
User can add here some code to deal with this error */
/* Go to infinite loop */
while (1)
{}
}
}
/**
* @brief To select MSI as System clock source
* @caller ADC_Icc_Test
* @param Frequence, DIV by 2 ot not , With or without RTC
* @retval None
*/
void SetHSICLKToMSI(uint32_t freq,bool div2,bool With_RTC)
{
/* RCC system reset */
RCC_DeInit();
/* Flash 1 wait state */
FLASH_SetLatency(FLASH_Latency_0);
/* Disable Prefetch Buffer */
FLASH_PrefetchBufferCmd(DISABLE);
/* Disable 64-bit access */
FLASH_ReadAccess64Cmd(DISABLE);
/* Disable FLASH during SLeep */
FLASH_SLEEPPowerDownCmd(ENABLE);
/* Enable the PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Select the Voltage Range 3 (1.2V) */
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range3);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET)
{}
/* To configure the MSI frequency */
RCC_MSIRangeConfig(freq);
/* Select MSI as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_MSI);
/* Wait till MSI is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x00)
{}
if (div2)
{
RCC_HCLKConfig(RCC_SYSCLK_Div2);
}
RCC_HSICmd(DISABLE);
/* Disable HSE clock */
RCC_HSEConfig(RCC_HSE_OFF);
/* Disable LSE clock */
if (! With_RTC)
RCC_LSEConfig(RCC_LSE_OFF);
/* Disable LSI clock */
RCC_LSICmd(DISABLE);
}
/**
* @brief Enters MCU in STANDBY mode. The wake-up from STANDBY mode is performed
* by an RTC Alarm event.
* @param None
* @retval None
*/
void LowPower_EnterSTANDBYMode_RTCAlarm(void)
{
// LCD_Clear(LCD_COLOR_WHITE);
/* Set the LCD Back Color */
// LCD_SetBackColor(LCD_COLOR_BLUE);
/* Set the LCD Text Color */
// LCD_SetTextColor(LCD_COLOR_WHITE);
/* External Interrupt Disable */
//Demo_IntExtOnOffCmd(DISABLE);
/* Enable WakeUp pin */
PWR_WakeUpPinCmd(PWR_WakeUpPin_1, ENABLE);
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
RTC_WaitForSynchro();
}
if (RTC_ReadBackupRegister(RTC_BKP_DR0) != 0x5AA5)
{
// LCD_DisplayStringLine(LCD_LINE_1, "Time and Date are ");
// LCD_DisplayStringLine(LCD_LINE_2, "not configured, ");
// LCD_DisplayStringLine(LCD_LINE_3, "please go to the ");
// LCD_DisplayStringLine(LCD_LINE_4, "calendar menu and ");
// LCD_DisplayStringLine(LCD_LINE_5, "set the time and ");
// LCD_DisplayStringLine(LCD_LINE_6, "date parameters. ");
// LCD_DisplayStringLine(LCD_LINE_7, "Press JoyStick to ");
// LCD_DisplayStringLine(LCD_LINE_8, "continue... ");
/* External Interrupt Enable */
//Demo_IntExtOnOffCmd(ENABLE);
return;
}
Calendar_AlarmPreAdjust_A();
// LCD_DisplayStringLine(LCD_LINE_7, " MCU in STANDBY Mode");
// LCD_DisplayStringLine(LCD_LINE_8, " Wait For RTC Alarm ");
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
/**
* @brief Configures RTC clock source and prescaler.
* @param None
* @retval None
*/
void RTC_Configuration(void)
{
/* Check if the StandBy flag is set */
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{/* System resumed from STANDBY mode */
/* Turn on LD4 */
STM32vldiscovery_LEDOn(LED4);
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* No need to configure the RTC as the RTC configuration(clock source, enable,
prescaler,...) is kept after wake-up from STANDBY */
}
else
{/* StandBy flag is not set */
/* RTC clock source configuration ----------------------------------------*/
/* Reset Backup Domain */
BKP_DeInit();
/* Enable LSE OSC */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* RTC configuration -----------------------------------------------------*/
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Set the RTC time base to 1s */
RTC_SetPrescaler(32767);
/* Wait until last write operation on RTC registers has finished */
RTC_WaitForLastTask();
}
}
void BKPSRAM_Init(void) {
/* Enable PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Enable backup SRAM Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_BKPSRAM, ENABLE);
/* Allow access to backup domain */
PWR_BackupAccessCmd(ENABLE);
/* Enable the Backup SRAM low power Regulator */
/* This will allow data to stay when using VBat mode */
PWR_BackupRegulatorCmd(ENABLE);
/* Wait for backup regulator to be ready */
while (PWR_GetFlagStatus(PWR_FLAG_BRR) == RESET);
}
void Platform_Init(void)
{
/*STM32 wakeup by watchdog in standby mode, re-enter standby mode in this situation*/
PlatformWDGReload();
if ( (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) && RCC_GetFlagStatus(RCC_FLAG_IWDGRST) != RESET)
{
RCC_ClearFlag();
Platform_Enter_STANDBY();
}
PWR_ClearFlag(PWR_FLAG_SB);
mico_rtos_init_mutex(&printf_mutex);
Platform_Button_EL_Init();
Platform_Button_STANDBY_Init();
Platform_LED_SYS_Init();
Platform_LED_RF_Init();
Platform_Debug_UART_Init();
}
static void Init_Last_Reset_Info()
{
if (HAL_Core_System_Reset_FlagSet(SOFTWARE_RESET))
{
// Load reset info from backup registers
last_reset_info.reason = BKP_ReadBackupRegister(BKP_DR2);
const uint16_t hi = BKP_ReadBackupRegister(BKP_DR3);
const uint16_t lo = BKP_ReadBackupRegister(BKP_DR4);
last_reset_info.data = ((uint32_t)hi << 16) | (uint32_t)lo;
// Clear backup registers
BKP_WriteBackupRegister(BKP_DR2, 0);
BKP_WriteBackupRegister(BKP_DR3, 0);
BKP_WriteBackupRegister(BKP_DR4, 0);
}
else // Hardware reset
{
if (HAL_Core_System_Reset_FlagSet(WATCHDOG_RESET))
{
last_reset_info.reason = RESET_REASON_WATCHDOG;
}
else if (HAL_Core_System_Reset_FlagSet(POWER_MANAGEMENT_RESET))
{
last_reset_info.reason = RESET_REASON_POWER_MANAGEMENT; // Reset generated when entering standby mode (nRST_STDBY: 0)
}
else if (HAL_Core_System_Reset_FlagSet(POWER_DOWN_RESET))
{
last_reset_info.reason = RESET_REASON_POWER_DOWN;
}
else if (HAL_Core_System_Reset_FlagSet(PIN_RESET)) // Pin reset flag should be checked in the last place
{
last_reset_info.reason = RESET_REASON_PIN_RESET;
}
else if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) // Check if MCU was in standby mode
{
last_reset_info.reason = RESET_REASON_POWER_MANAGEMENT; // Reset generated when exiting standby mode (nRST_STDBY: 1)
}
else
{
last_reset_info.reason = RESET_REASON_UNKNOWN;
}
last_reset_info.data = 0; // Not used
}
// Note: RCC reset flags should be cleared, see HAL_Core_Init()
}
/**
* @brief This function configures the system to enter Standby mode for
* current consumption measurement purpose.
* STANDBY Mode
* ============
* - RTC OFF
* - IWDG and LSI OFF
* - Wakeup using WakeUp Pin1 (PA.00)
* @param None
* @retval None
*/
void StandbyMode_Measure(void)
{
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
}
/* Enable WKUP pin 1 */
PWR_WakeUpPinCmd(PWR_WakeUpPin_1,ENABLE);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
/* Infinite loop */
while (1)
{
}
}
/****************************************************************************
* 名 称：void clock_ini(void)
* 功 能：时钟初始化函数
* 入口参数：无
* 出口参数：无
* 说 明：
* 调用方法：
****************************************************************************/
void clock_ini(void)
{
#if defined (STOP_Mode)
if(BKP_CheckLOCK_RTC() != BKP_RTC_Flag){
RTC_Configuration();
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
while(RTC_Init(&RTC_InitStructure) == ERROR) {}
Set_Time(time);
BKP_LOCK_RTC();
}else{
while(RCC_GetFlagStatus(RCC_FLAG_PORRST) == RESET) {}
while(RCC_GetFlagStatus(RCC_FLAG_PINRST) == RESET) {}
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
PWR_RTCAccessCmd(ENABLE);
RTC_WaitForSynchro();
}
RTC_Alarm_Exit();
RTC_NVIC_Configuration();
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_ClearFlag(PWR_FLAG_WU);
#elif defined (TANDBY_Mode)
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
PWR_RTCAccessCmd(ENABLE);
PWR_ClearFlag(PWR_FLAG_WU);
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET) {
PWR_ClearFlag(PWR_FLAG_SB);
RTC_WaitForSynchro();
}else {
RTC_Configuration();
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
while(RTC_Init(&RTC_InitStructure) == ERROR) {}
Set_Time(time);
RTC_ClearFlag(RTC_FLAG_ALRAF);
}
#endif
}
/**
* @brief Selects MSI (64KHz) as System clock source and configure
* HCLK, PCLK2 and PCLK1 prescalers.
* @param None
* @retval None
*/
void SetHCLKToMSI_64KHz(void)
{
/* RCC system reset */
RCC_DeInit();
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
/* Disable Prefetch Buffer */
FLASH_PrefetchBufferCmd(DISABLE);
/* Disable 64-bit access */
FLASH_ReadAccess64Cmd(DISABLE);
/* Enable the PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Select the Voltage Range 3 (1.2V) */
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range3);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET)
{}
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* Set MSI clock range to 64KHz */
RCC_MSIRangeConfig(RCC_MSIRange_0);
/* Select MSI as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_MSI);
/* Wait till PLL is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x00)
{}
}
void RTC_Alarm_irq(void)
{
if(RTC_GetITStatus(RTC_IT_ALRA) != RESET)
{
HAL_RTCAlarm_Handler();
/* Clear EXTI line17 pending bit */
EXTI_ClearITPendingBit(EXTI_Line17);
/* Check if the Wake-Up flag is set */
if(PWR_GetFlagStatus(PWR_FLAG_WU) != RESET)
{
/* Clear Wake Up flag */
PWR_ClearFlag(PWR_FLAG_WU);
}
/* Clear RTC Alarm interrupt pending bit */
RTC_ClearITPendingBit(RTC_IT_ALRA);
}
}
/**
* @brief Selects MSI (Default Value, 2MHz) as System clock source and configure
* HCLK, PCLK2 and PCLK1 prescalers.
* @param None
* @retval None
*/
void SetHCLKToMSI_2MHz(void)
{
/* RCC system reset */
RCC_DeInit();
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
/* Disable Prefetch Buffer */
FLASH_PrefetchBufferCmd(DISABLE);
/* Disable 64-bit access */
FLASH_ReadAccess64Cmd(DISABLE);
/* Enable the PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Select the Voltage Range 3 (1.2V) */
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range3);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET)
{}
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f0xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f0xx.c file
*/
/* PWR clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* PVD configuration: Level 5 */
PWR_PVDLevelConfig(PWR_PVDLevel_5);
/* Enable the Power Voltage Detector(PVD) */
PWR_PVDCmd(ENABLE);
/* Enable SYSCFG clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Connect PVD event with BKIN: when a PVD event (VDD lower than the threshold)
is detected a break event is generated */
SYSCFG_BreakConfig(SYSCFG_Break_PVD);
/* TIM1 channels Configuration in PWM mode */
TIM_Config();
/* Wait till a PVD event is detected */
while(PWR_GetFlagStatus(PWR_FLAG_PVDO) == RESET);
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f40_41xxx.s/startup_stm32f427_437xx.s)
before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Enable PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to Backup */
PWR_BackupAccessCmd(ENABLE);
/* Reset RTC Domain */
RCC_BackupResetCmd(ENABLE);
RCC_BackupResetCmd(DISABLE);
/* Check that the system was resumed from StandBy mode */
if(PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear SB Flag */
PWR_ClearFlag(PWR_FLAG_SB);
/* Initialize LED1 on STM324xG-EVAL board */
STM_EVAL_LEDInit(LED1);
/* Infinite loop */
while (1)
{
/* Toggle The LED1 */
STM_EVAL_LEDToggle(LED1);
/* Inserted Delay */
for(uwCounter = 0; uwCounter < 0x5FFFF; uwCounter++);
}
}
/* Configure Key Button */
STM_EVAL_PBInit(BUTTON_KEY,BUTTON_MODE_GPIO);
/* Wait until Key button is pressed to enter the Low Power mode */
while(STM_EVAL_PBGetState(BUTTON_KEY) != RESET)
{
}
/* Loop while Key button is maintained pressed */
while(STM_EVAL_PBGetState(BUTTON_KEY) == RESET)
{
}
#if defined (SLEEP_MODE)
/* Sleep Mode Entry
- System Running at PLL (168MHz)
- Flash 5 wait state
- Instruction and Data caches ON
- Prefetch ON
- Code running from Internal FLASH
- All peripherals disabled.
- Wakeup using EXTI Line (Key Button PG.15)
*/
SleepMode_Measure();
#elif defined (STOP_MODE)
/* STOP Mode Entry
- RTC Clocked by LSE/LSI
- Regulator in LP mode
- HSI, HSE OFF and LSI OFF if not used as RTC Clock source
- No IWDG
- FLASH in deep power down mode
- Automatic Wakeup using RTC clocked by LSE/LSI (after ~20s)
*/
StopMode_Measure();
#elif defined (STANDBY_MODE)
/* STANDBY Mode Entry
- Backup SRAM and RTC OFF
- IWDG and LSI OFF
- Wakeup using WakeUp Pin (PA.00)
*/
StandbyMode_Measure();
#elif defined (STANDBY_RTC_MODE)
/* STANDBY Mode with RTC on LSE/LSI Entry
- RTC Clocked by LSE or LSI
- IWDG OFF and LSI OFF if not used as RTC Clock source
- Backup SRAM OFF
- Automatic Wakeup using RTC clocked by LSE/LSI (after ~20s)
*/
StandbyRTCMode_Measure();
#elif defined (STANDBY_RTC_BKPSRAM_MODE)
/* STANDBY Mode with RTC on LSE/LSI Entry
- RTC Clocked by LSE/LSI
- Backup SRAM ON
- IWDG OFF
- Automatic Wakeup using RTC clocked by LSE/LSI (after ~20s)
*/
StandbyRTCBKPSRAMMode_Measure();
#else
/* Initialize LED1 on STM324xG-EVAL board */
STM_EVAL_LEDInit(LED1);
/* Infinite loop */
while (1)
{
/* Toggle The LED1 */
STM_EVAL_LEDToggle(LED1);
/* Inserted Delay */
for(Counter = 0; Counter < 0x5FF; Counter++);
}
#endif
}
int main(void)
{
RCC_APB1PeriphClockCmd( RCC_APB1Periph_PWR, ENABLE);//!!!!
// тактирование ядра низкоскоростным внутренним генератором 4мгц
RCC->ICSCR &= ~RCC_ICSCR_MSIRANGE;//!!!!
RCC->ICSCR |= RCC_ICSCR_MSIRANGE_6;//!!!!
//RTC_Initilithahion();//!!!!
////////////////////////////////////////////////////////////////////
delay_ms(1000);//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
curent_cmd = 0;
PCount_Start = 0;
/////////////////// настройка пробуждения
RCC_HSICmd(DISABLE);
PWR_PVDCmd(DISABLE);
PWR_UltraLowPowerCmd(ENABLE);
PWR_WakeUpPinCmd(PWR_WakeUpPin_1,ENABLE);
PWR_UltraLowPowerCmd(ENABLE);
////////////// настройка прирывания для будильника в неспящем режиме
EXTI_InitTypeDef exti;
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_ClearITPendingBit(EXTI_Line17);
exti.EXTI_Line = EXTI_Line17;
exti.EXTI_Mode = EXTI_Mode_Interrupt;
exti.EXTI_Trigger = EXTI_Trigger_Rising;
exti.EXTI_LineCmd = ENABLE;
EXTI_Init(&exti);
NVIC_InitStructure.NVIC_IRQChannel = RTC_Alarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//////////////////
if(PWR_GetFlagStatus(PWR_FLAG_SB)!=RESET)//Если МК вышел из режима standby
{
WkupFlag=1;
curent_cmd = 1;
if(RTC_GetFlagStatus(RTC_FLAG_ALRAF)!=RESET)//Если МК вышел из режима ALARM
{
//RTC_Initilithahion();//!!!!
//PWR_RTCAccessCmd(ENABLE);
//RTC_ClearFlag(RTC_FLAG_ALRAF);
//PWR_RTCAccessCmd(DISABLE);
//f_WakeupToAlarm=1;
curent_cmd = 5;
}
//RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR,ENABLE);
PWR_ClearFlag(PWR_FLAG_SB); //Сброс флага, который указывает на то, что МК вышел из режима standby
PWR_RTCAccessCmd(ENABLE); // Доступ в RTC
//RTC_ClearITPendingBit(RTC_IT_WUT);
//RTC_ClearFlag(RTC_FLAG_WUTF);
RTC_ClearFlag(RTC_FLAG_ALRAF);
PWR_RTCAccessCmd(DISABLE);
}
else
{
WkupFlag=0;
RTC_TimeTypeDef alarmTime;
alarmTime.RTC_H12 = RTC_H12_PM;//!!!!;
alarmTime.RTC_Hours = 20;
alarmTime.RTC_Minutes = 0;
alarmTime.RTC_Seconds = 20;
RTC_Initilithahion();//!!!!
//RTC_Set_Alarm(alarmTime);/// Магическая последовательность, 1. RTC_Set_Alarm, 2. RTC_Set_Time иначе не работает будильник
RTC_TimeTypeDef RTC_Time;
RTC_DateTypeDef RTC_Date;
RTC_Time.RTC_H12 = RTC_H12_PM;//!!!!;
RTC_Time.RTC_Hours = 20;
RTC_Time.RTC_Minutes = 00;
RTC_Time.RTC_Seconds = 00;
RTC_Date.RTC_WeekDay = RTC_Weekday_Sunday;
RTC_Date.RTC_Year = 14;
RTC_Date.RTC_Month = 8;
RTC_Date.RTC_Date = 17;
RTC_Set_TimeDate(RTC_Time, RTC_Date);///
}
//else curent_cmd = 0;//f_WakeupToAlarm=0;
//RTC_Initilithahion();//!!!!
//RTC_Set_Time();
OLED_Init();
OLED_Clear();
char i,j;
/*
RCC_GetClocksFreq(&Frequency);
f=Frequency.SYSCLK_Frequency/1000;
IntToStr(a,f);
OLED_DrawString_fast(30,30,a,10);
*/
OLED_LcdCache_Clear();
//if(0==WkupFlag) //Если МК до этого не находился в режиме STANDBY!!!!!!!!!!!!!!!!!
//PWR_EnterSTANDBYMode(); //Перейди в режим STANDBY!!!!!!!!!!!!!!!!!!!
//OLED_DrawBitmap_fast(3,12,menu1_sprait,123,40);
//delay_ms(10000);
WaitToSleep = 0;
TACT_Config();
BackTimeAndData.hour=0;
BackTimeAndData.minute=0;
BackTimeAndData.second=0;
globa_menu = 1;
f_aktive_menu = 0;
//curent_cmd = 0;
PWatch_Setup_Step = 0;
key_up = 0;
key_down = 0;
key_ok = 0;
PCount_Start = 0;
while(1)
{
key = 0;
key_ok = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0);
key_down = GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_2);
key_up = GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12);
/*
OLED_DrawString_fast(0,0," ",10);
IntToStr(bbb,key_ok);
OLED_DrawString_fast(0,0,bbb,10);
IntToStr(bbb,key_down);
OLED_DrawString_fast(30,0,bbb,10);
IntToStr(bbb,key_up);
OLED_DrawString_fast(60,0,bbb,10);
*/
if (key_ok!=0)
{
key_ok = 0;
key = 1;
//OLED_DrawString_fast(0,0,"000000000",10);
//f_aktive_menu = 1;
/*
if (f_aktive_menu == 1)
{
//f_work_comand = 1;
f_aktive_menu = 0;
f_clearScrin = 1;
curent_cmd = menu_cmd[globa_menu-1];
}
else curent_cmd = 255 ;
*/
}
if (key_down==0)
{
key_down = 0;
key = 2;
/*
if ((globa_menu>1)&&(f_work_comand == 0)) globa_menu--;
else globa_menu = 1;
//IntToStr(bbb,globa_menu);
//OLED_DrawString_fast(0,0,bbb,10);
*/
}
if (key_up==0)
{
key_up = 0;
key = 12;
/*
if ((globa_menu<4)&&(f_work_comand == 0)) globa_menu++;
else globa_menu = 4;
//IntToStr(bbb,globa_menu);
//OLED_DrawString_fast(0,0,bbb,10);
*/
}
if (key!=0)
{
GPIO_SetBits(GPIOA, GPIO_Pin_1);
delay_ms(30);
GPIO_ResetBits(GPIOA, GPIO_Pin_1);
}
/*
if (f_clearScrin==1)
{
OLED_Clear();
f_clearScrin=0;
}
*/
//if (f_aktive_menu==0)
//{
switch(curent_cmd)
{
case 0: //нет команды
PWatch_Menu();
break;
case 1: //Программа показа часов (главная страница)
//OLED_Clear();
//f_work_comand = 1;
PWatch_Anim();
break;
case 2: //Программа настройки даты/времени и др.
//OLED_Clear();
OLED_DrawString_fast(0,0,"Календарь",10);
curent_cmd = 0;
break;
case 3:
//OLED_Clear();
PWatch_Set_Alarm();
break;
case 4:
//OLED_Clear();
//OLED_DrawString_fast(0,0,"Настройки",10);
//f_work_comand = 1;
PWatch_Setup();
break;
case 5:
PWatch_Vibration();
break;
case 254:
OLED_Clear();
break;
/*case 255:
OLED_Clear();
OLED_DrawBitmap_fast(3,12,menu1_sprait,123,40);
f_aktive_menu = 1;
//f_work_comand = 0;
//key=0;
break;
*/
default: //выполнить, если ни один вариант не подошел
break;
}
//}
//else
//{
//PWatch_Menu();
//}
/*
if(WainToAlarm == 1)
{
OLED_DrawString_fast(0,0,"alarm1",10);
WainToAlarm =0;
}
*/
//if(WaitToSleep>=5)
//{
//WaitToSleep=0;
//PWR_ClearFlag(PWR_FLAG_SB); //Сброс флага, который указывает на то, что МК вышел из режима standby
/*
for (i=255; i>0; i--)
{
OLED_SetContrast(i);
IntToStr(a,i);
OLED_DrawString_fast(0,0,a,10);
//delay_ms(500);
}*/
//OLED_DrawBitmap_fast(32,10,Fallout_Bitmaps,58,60);
//delay_ms(1000);
//OLED_Display_Off();!!!!!!!!!!!!!!!!!!!!!!!!1
//RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, DISABLE);
//походу стабилитрон кушает 0.1 мА, общее потребление 0.15мА
//PWR_EnterSTANDBYMode();!!!!!!!!!!!!!!!!!!!!!
//}
//WaitToSleep++;
/*
RCC_GetClocksFreq(&Frequency);
f=Frequency.SYSCLK_Frequency/1000;
IntToStr(a,f);
OLED_DrawString_fast(0,0,a,10);
*/
delay_ms(250);
}
}
/**
* @brief This function configures the system to enter Standby mode with RTC
* clocked by LSE or LSI and with Backup SRAM ON for current consumption
* measurement purpose.
* STANDBY Mode with RTC clocked by LSE/LSI and BKPSRAM
* ====================================================
* - RTC Clocked by LSE or LSI
* - Backup SRAM ON
* - IWDG OFF
* - Automatic Wakeup using RTC clocked by LSE/LSI (after ~20s)
* @param None
* @retval None
*/
void StandbyRTCBKPSRAMMode_Measure(void)
{
/* Allow access to RTC */
PWR_BackupAccessCmd(ENABLE);
#if defined (RTC_CLOCK_SOURCE_LSI) /* LSI used as RTC source clock*/
/* The RTC Clock may varies due to LSI frequency dispersion. */
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
#elif defined (RTC_CLOCK_SOURCE_LSE) /* LSE used as RTC source clock */
/* Enable the LSE OSC */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
#else
#error Please select the RTC Clock source inside the main.c file
#endif /* RTC_CLOCK_SOURCE_LSI */
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Backup SRAM ***************************************************************/
/* Enable BKPRAM Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_BKPSRAM, ENABLE);
/* Enable the Backup SRAM low power Regulator */
PWR_BackupRegulatorCmd(ENABLE);
/* Wait until the Backup SRAM low power Regulator is ready */
while(PWR_GetFlagStatus(PWR_FLAG_BRR) == RESET)
{
}
/* RTC Wakeup Interrupt Generation: Clock Source: RTCCLK_Div16, Wakeup Time Base: ~20s
RTC Clock Source LSE 32.768KHz or LSI ~32KHz
Wakeup Time Base = (16 / (LSE or LSI)) * WakeUpCounter
*/
RTC_WakeUpClockConfig(RTC_WakeUpClock_RTCCLK_Div16);
RTC_SetWakeUpCounter(0xA000-1);
/* Disable the Wakeup Interrupt */
RTC_ITConfig(RTC_IT_WUT, DISABLE);
/* Clear Power WakeUp (CWUF) pending flag */
PWR_ClearFlag(PWR_FLAG_WU);
/* Enable the Wakeup Interrupt */
RTC_ITConfig(RTC_IT_WUT, ENABLE);
/* Enable Wakeup Counter */
RTC_WakeUpCmd(ENABLE);
/* Clear WakeUp (WUTF) pending flag */
RTC_ClearFlag(RTC_FLAG_WUTF);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Selects HSI as System clock source and configure HCLK, PCLK2 and PCLK1 prescalers.
* @param None
* @retval None
*/
void SetHCLKToHSI(void)
{
__IO uint32_t StartUpCounter = 0, HSIStatus = 0;
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSI */
RCC_HSICmd(ENABLE);
/* Wait till HSI is ready and if Time out is reached exit */
do
{
HSIStatus = RCC_GetFlagStatus(RCC_FLAG_HSIRDY);
StartUpCounter++;
}
while ((HSIStatus == 0) && (StartUpCounter != HSI_STARTUP_TIMEOUT));
if (RCC_GetFlagStatus(RCC_FLAG_HSIRDY) != RESET)
{
HSIStatus = (uint32_t)0x01;
}
else
{
HSIStatus = (uint32_t)0x00;
}
if (HSIStatus == 0x01)
{
/* Flash 0 wait state */
FLASH_SetLatency(FLASH_Latency_0);
/* Disable Prefetch Buffer */
FLASH_PrefetchBufferCmd(DISABLE);
/* Disable 64-bit access */
FLASH_ReadAccess64Cmd(DISABLE);
/* Enable the PWR APB1 Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Select the Voltage Range 1 (1.8V) */
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range1);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET)
{}
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK */
RCC_PCLK1Config(RCC_HCLK_Div1);
/* Select HSI as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
/* Wait till HSI is used as system clock source */
while (RCC_GetSYSCLKSource() != 0x04)
{}
}
else
{ /* If HSI fails to start-up, the application will have wrong clock configuration.
User can add here some code to deal with this error */
/* Go to infinite loop */
while (1)
{}
}
}
int main(void)
{
bool StanbyWakeUp ;
float Current_STBY;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32l1xx_md.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32l1xx.c file
*/
Int_CurrentSTBY = Current_Measurement();
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* System resumed from STANDBY mode */
/* Clear StandBy flag */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR,ENABLE);
PWR_ClearFlag(PWR_FLAG_SB);
StanbyWakeUp = TRUE;
} else
{
StanbyWakeUp = FALSE;
}
PWR_PVDCmd(DISABLE);
RCC_Configuration();
PWR_VoltageScalingConfig(PWR_VoltageScaling_Range1);
/* Wait Until the Voltage Regulator is ready */
while (PWR_GetFlagStatus(PWR_FLAG_VOS) != RESET) ;
/* Init I/O ports */
Init_GPIOs ();
/* Initializes ADC */
ADC_Icc_Init();
enableInterrupts();
/* Warning ! in TSL Init the sysTick interrupt is setted to:
SysTick_Config(RCC_Clocks.HCLK_Frequency / 2000 ---> 500 µs*/
/* Init Touch Sensing configuration */
TSL_Init();
sMCKeyInfo[0].Setting.b.IMPLEMENTED = 1;
sMCKeyInfo[0].Setting.b.ENABLED = 1;
sMCKeyInfo[0].DxSGroup = 0x00;
/* Initializes the LCD glass */
LCD_GLASS_Init();
while (1)
{
switch( State )
{
case 0:
//LED3 off and LED4 off
blink = 0;
GPIOB_ODR_value = 0x00000000;
ptr_PORTB->GPIOx_ODR = GPIOB_ODR_value;
break;
case 1:
//LED3 on and LED4 off
blink = 0;
GPIOB_ODR_value = 0x00000080;
ptr_PORTB->GPIOx_ODR = GPIOB_ODR_value;
break;
case 2:
//LED3 off and LED4 on
blink = 0;
GPIOB_ODR_value = 0x00000040;
ptr_PORTB->GPIOx_ODR = GPIOB_ODR_value;
break;
case 3:
//LED3 and LED4 blink with 2 second period
blink = 1;
break;
}
if(blink == 1)
{
GPIOB_ODR_value = 0x000000C0;
ptr_PORTB->GPIOx_ODR = GPIOB_ODR_value;
Delay(100);
GPIOB_ODR_value = 0x00000000;
ptr_PORTB->GPIOx_ODR = GPIOB_ODR_value;
Delay(100);
}
}
return(0);
}
/**
* @brief Configures the RTC.
* @param None
* @retval None
*/
static void RTC_Config(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to BKP Domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Wakeup flag */
PWR_ClearFlag(PWR_FLAG_WU);
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
/* Wait for RTC APB registers synchronisation (needed after start-up from Reset)*/
RTC_WaitForSynchro();
/* No need to configure the RTC as the RTC config(clock source, enable,
prescaler,...) are kept after wake-up from STANDBY */
}
else
{
/* RTC Configuration ******************************************************/
/* Reset Backup Domain */
RCC_BackupResetCmd(ENABLE);
RCC_BackupResetCmd(DISABLE);
#if defined (RTC_CLOCK_SOURCE_LSI) /* LSI used as RTC source clock*/
/* The RTC Clock may varies due to LSI frequency dispersion. */
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
SynchPrediv = 0xFF;
AsynchPrediv = 0x7F;
#elif defined (RTC_CLOCK_SOURCE_LSE) /* LSE used as RTC source clock */
/* Enable the LSE OSC */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
SynchPrediv = 0xFF;
AsynchPrediv = 0x7F;
#else
#error Please select the RTC Clock source inside the main.c file
#endif /* RTC_CLOCK_SOURCE_LSI */
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation (needed after start-up from Reset)*/
RTC_WaitForSynchro();
/* Set the RTC time base to 1s */
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_InitStructure.RTC_AsynchPrediv = 0x7F;
RTC_InitStructure.RTC_SynchPrediv = 0x00FF;
if (RTC_Init(&RTC_InitStructure) == ERROR)
{
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
/* User can add here some code to deal with this error */
while(1);
}
/* Set the time to 01h 00mn 00s AM */
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
RTC_TimeStructure.RTC_Hours = 0x01;
RTC_TimeStructure.RTC_Minutes = 0x00;
RTC_TimeStructure.RTC_Seconds = 0x00;
if(RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure) == ERROR)
{
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
/* User can add here some code to deal with this error */
while(1);
}
}
/* Clear RTC Alarm Flag */
RTC_ClearFlag(RTC_FLAG_ALRAF);
}
/**
* @brief Configures the RTC clock source.
* @param None
* @retval None
*/
void RTC_Config(void)
{
RTC_InitTypeDef RTC_InitStructure;
RTC_AlarmTypeDef RTC_AlarmStructure;
RTC_TimeTypeDef RTC_TimeStructure;
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to Backup Domain */
PWR_BackupAccessCmd(ENABLE);
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
/* Check if the StandBy flag is cleared */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
while(1);
}
RTC_WaitForSynchro();
/* No need to configure the RTC as the RTC config(clock source, enable,
prescaler,...) are kept after wake-up from STANDBY */
}
else
{
/* RTC Configuration ******************************************************/
/* Reset Backup Domain */
RCC_BackupResetCmd(ENABLE);
RCC_BackupResetCmd(DISABLE);
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_InitStructure.RTC_AsynchPrediv = 0x7F;
RTC_InitStructure.RTC_SynchPrediv = 0x0138;
RTC_Init(&RTC_InitStructure);
/* Set the alarm X+5s */
RTC_AlarmStructure.RTC_AlarmTime.RTC_H12 = RTC_H12_AM;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Hours = 0x01;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Minutes = 0x00;
RTC_AlarmStructure.RTC_AlarmTime.RTC_Seconds = 0x3;
RTC_AlarmStructure.RTC_AlarmDateWeekDay = 0x31;
RTC_AlarmStructure.RTC_AlarmDateWeekDaySel = RTC_AlarmDateWeekDaySel_Date;
RTC_AlarmStructure.RTC_AlarmMask = RTC_AlarmMask_DateWeekDay;
RTC_SetAlarm(RTC_Format_BCD, RTC_Alarm_A, &RTC_AlarmStructure);
/* Enable RTC Alarm A Interrupt */
RTC_ITConfig(RTC_IT_ALRA, ENABLE);
/* Enable the alarm */
RTC_AlarmCmd(RTC_Alarm_A, ENABLE);
}
/* Set the time to 01h 00mn 00s AM */
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
RTC_TimeStructure.RTC_Hours = 0x01;
RTC_TimeStructure.RTC_Minutes = 0x00;
RTC_TimeStructure.RTC_Seconds = 0x00;
RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure);
/* Clear Wakeup flag */
PWR_ClearFlag(PWR_FLAG_WU);
RTC_ClearFlag(RTC_FLAG_ALRAF);
/* Request to enter STANDBY mode (Wake Up flag is cleared in PWR_EnterSTANDBYMode function) */
PWR_EnterSTANDBYMode();
}
/**
* @brief Configure the RTC peripheral by selecting the clock source.
* @param None
* @retval None
*/
void RTC_Config(void)
{
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
PWR_BackupAccessCmd(ENABLE);
#if defined (RTC_CLOCK_SOURCE_LSI) /* LSI used as RTC source clock*/
/* The RTC Clock may varies due to LSI frequency dispersion. */
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
SynchPrediv = 0xFF;
AsynchPrediv = 0x7F;
#elif defined (RTC_CLOCK_SOURCE_LSE) /* LSE used as RTC source clock */
/* Enable the LSE OSC */
RCC_LSEConfig(RCC_LSE_ON);
/* Wait till LSE is ready */
while(RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET)
{
}
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
SynchPrediv = 0xFF;
AsynchPrediv = 0x7F;
#else
#error Please select the RTC Clock source inside the main.c file
#endif /* RTC_CLOCK_SOURCE_LSI */
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Write to the first RTC Backup Data Register */
RTC_WriteBackupRegister(RTC_BKP_DR0, FIRST_DATA);
/* Display the new RCC BDCR and RTC TAFCR Registers */
LCD_UsrLog ("RTC Reconfig \n");
LCD_UsrLog ("RCC BDCR = 0x%x\n", RCC->BDCR);
LCD_UsrLog ("RTC TAFCR = 0x%x\n", RTC->TAFCR);
/* Set the Time */
RTC_TimeStructure.RTC_Hours = 0x08;
RTC_TimeStructure.RTC_Minutes = 0x00;
RTC_TimeStructure.RTC_Seconds = 0x00;
/* Set the Date */
RTC_DateStructure.RTC_Month = RTC_Month_March;
RTC_DateStructure.RTC_Date = 0x18;
RTC_DateStructure.RTC_Year = 0x11;
RTC_DateStructure.RTC_WeekDay = RTC_Weekday_Friday;
/* Calendar Configuration */
RTC_InitStructure.RTC_AsynchPrediv = AsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = SynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);
/* Set Current Time and Date */
RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure);
RTC_SetDate(RTC_Format_BCD, &RTC_DateStructure);
/* Configure the RTC Wakeup Clock source and Counter (Wakeup event each 1 second) */
RTC_WakeUpClockConfig(RTC_WakeUpClock_RTCCLK_Div16);
RTC_SetWakeUpCounter(0x7FF);
/* Enable the Wakeup Interrupt */
RTC_ITConfig(RTC_IT_WUT, ENABLE);
/* Enable Wakeup Counter */
RTC_WakeUpCmd(ENABLE);
/* Backup SRAM ***************************************************************/
/* Enable BKPRAM Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_BKPSRAM, ENABLE);
/* Write to Backup SRAM with 32-Bit Data */
for (i = 0x0; i < 0x1000; i += 4)
{
*(__IO uint32_t *) (BKPSRAM_BASE + i) = i;
}
/* Check the written Data */
for (i = 0x0; i < 0x1000; i += 4)
{
if ((*(__IO uint32_t *) (BKPSRAM_BASE + i)) != i)
{
errorindex++;
}
}
if(errorindex)
{
LCD_ErrLog ("BKP SRAM Number of errors = %d\n", errorindex);
}
else
{
LCD_UsrLog ("BKP SRAM write OK \n");
}
/* Enable the Backup SRAM low power Regulator to retain it's content in VBAT mode */
PWR_BackupRegulatorCmd(ENABLE);
/* Wait until the Backup SRAM low power Regulator is ready */
while(PWR_GetFlagStatus(PWR_FLAG_BRR) == RESET)
{
}
/* RTC Backup Data Registers **************************************************/
/* Write to RTC Backup Data Registers */
WriteToBackupReg(FIRST_DATA);
}
/**
* @brief Configures the RTC clock source.
* @param None
* @retval None
*/
static void RTC_Config(void)
{
RTC_InitTypeDef RTC_InitStructure;
RTC_TimeTypeDef RTC_TimeStructure;
uint32_t LSIFreq = 0;
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to Backup Domain */
PWR_BackupAccessCmd(ENABLE);
/* Clear Wakeup flag */
PWR_ClearFlag(PWR_FLAG_WU);
/* Enable the LSI OSC */
RCC_LSICmd(ENABLE);
/* Wait till LSI is ready */
while (RCC_GetFlagStatus(RCC_FLAG_LSIRDY) == RESET)
{}
/* Check if the StandBy flag is set */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
/* Clear StandBy flag */
PWR_ClearFlag(PWR_FLAG_SB);
/* Check if the StandBy flag is cleared */
if (PWR_GetFlagStatus(PWR_FLAG_SB) != RESET)
{
while(1);
}
RTC_WaitForSynchro();
/* No need to configure the RTC as the RTC config(clock source, enable,
prescaler,...) are kept after wake-up from STANDBY */
}
else
{
/* RTC Configuration ******************************************************/
/* Reset Backup Domain */
RCC_BackupResetCmd(ENABLE);
RCC_BackupResetCmd(DISABLE);
/* Select the RTC Clock Source */
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSI);
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Get the LSI frequency: TIM14 is used to measure the LSI frequency */
LSIFreq = GetLSIFrequency();
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_InitStructure.RTC_AsynchPrediv = 99;
RTC_InitStructure.RTC_SynchPrediv = (LSIFreq/100) - 1;
RTC_Init(&RTC_InitStructure);
/* Set the time to 01h 00mn 00s AM */
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
RTC_TimeStructure.RTC_Hours = 0x01;
RTC_TimeStructure.RTC_Minutes = 0x00;
RTC_TimeStructure.RTC_Seconds = 0x00;
RTC_SetTime(RTC_Format_BIN, &RTC_TimeStructure);
}
}
