/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint32_t index = 0;
RTC_TamperTypeDef stamperstructure;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Wait until MFX is ready after reset */
HAL_Delay(100);
/* Since MFX is used, LED init is done after clock config */
/* Configure LED1, LED2, LED3 and LED4 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
/* Configure Tamper push-button button */
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/*##-1- Configure the RTC peripheral #######################################*/
/* Configure RTC prescaler and RTC data registers */
/* RTC configured as follows:
- Hour Format = Format 24
- Asynch Prediv = Value according to source clock
- Synch Prediv = Value according to source clock
- OutPut = Output Disable
- OutPutPolarity = High Polarity
- OutPutType = Open Drain */
RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24;
RtcHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
RtcHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
RtcHandle.Instance = RTC;
if (HAL_RTC_Init(&RtcHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure RTC Tamper ###############################################*/
stamperstructure.Tamper = RTC_TAMPER_1;
stamperstructure.PinSelection = RTC_TAMPERPIN_PC13;
stamperstructure.Trigger = RTC_TAMPERTRIGGER_FALLINGEDGE;
stamperstructure.Filter = RTC_TAMPERFILTER_DISABLE;
stamperstructure.SamplingFrequency = RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV32768;
stamperstructure.PrechargeDuration = RTC_TAMPERPRECHARGEDURATION_1RTCCLK;
stamperstructure.TamperPullUp = RTC_TAMPER_PULLUP_ENABLE;
stamperstructure.TimeStampOnTamperDetection = RTC_TIMESTAMPONTAMPERDETECTION_DISABLE;
if (HAL_RTCEx_SetTamper_IT(&RtcHandle, &stamperstructure) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Clear the Tamper interrupt pending bit */
__HAL_RTC_TAMPER_CLEAR_FLAG(&RtcHandle,RTC_FLAG_TAMP1F);
/*##-3- Write Data on the Back Up registers ################################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
HAL_RTCEx_BKUPWrite(&RtcHandle, aBKPDataReg[index], 0xDF59 + (index * 0x5A));
}
/*##-4- Check Data is stored on the Back Up registers ######################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
if (HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != (0xDF59 + (index * 0x5A)))
{
Error_Handler();
}
}
/* Turn LED2 on */
BSP_LED_On(LED2);
/*##-5- Wait for the tamper button is pressed ##############################*/
while (TamperStatus != SET);
/*##-6- Deactivate the tamper ##############################*/
HAL_RTCEx_DeactivateTamper(&RtcHandle, RTC_TAMPER_1);
/*##-7- Check Data is cleared on the Back Up registers #####################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
if (HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != 0x00)
{
Error_Handler();
}
}
/* Infinite loop */
while (1)
{
/* Turn LED4 on */
BSP_LED_Toggle(LED4);
/* Delay */
HAL_Delay(100);
}
}
/**
* @brief Configure the current time and date.
* @param None
* @retval None
*/
static void RTC_TamperConfig(void)
{
RTC_TamperTypeDef stamperstructure;
/*##-1- Configure the Tamper ###############################################*/
HAL_RTCEx_DeactivateTamper(&RtcHandle, RTC_TAMPER_1);
/* Use PC13 as Tamper 1 with interrupt mode */
stamperstructure.Filter = RTC_TAMPERFILTER_DISABLE;
stamperstructure.PinSelection = RTC_TAMPERPIN_PC13;
stamperstructure.Tamper = RTC_TAMPER_1;
stamperstructure.Trigger = RTC_TAMPERTRIGGER_FALLINGEDGE;
stamperstructure.SamplingFrequency = RTC_TAMPERSAMPLINGFREQ_RTCCLK_DIV256;
stamperstructure.PrechargeDuration = RTC_TAMPERPRECHARGEDURATION_1RTCCLK;
stamperstructure.TamperPullUp = RTC_TAMPER_PULLUP_DISABLE;
stamperstructure.TimeStampOnTamperDetection = RTC_TIMESTAMPONTAMPERDETECTION_DISABLE;
if(HAL_RTCEx_SetTamper_IT(&RtcHandle, &stamperstructure) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Clear the Tamper interrupt pending bit */
__HAL_RTC_TAMPER_CLEAR_FLAG(&RtcHandle,RTC_FLAG_TAMP1F);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint32_t index = 0;
RTC_TamperTypeDef stamperstructure;
/* STM32F103xG HAL library initialization:
- Configure the Flash prefetch
- Systick timer is configured by default as source of time base, but user
can eventually implement his proper time base source (a general purpose
timer for example or other time source), keeping in mind that Time base
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
handled in milliseconds basis.
- Set NVIC Group Priority to 4
- Low Level Initialization
*/
HAL_Init();
/* Configure the system clock to 72 MHz */
SystemClock_Config();
/* Configure LED1, LED2, LED3 and LED4 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
/* Configure Key push-button button */
BSP_PB_Init(BUTTON_KEY, BUTTON_MODE_GPIO);
/*##-1- Configure the RTC peripheral #######################################*/
/* Configure RTC prescaler and RTC data registers */
/* RTC configured as follow:
- Asynch Prediv = Calculated automatically by HAL */
RtcHandle.Instance = RTC;
RtcHandle.Init.AsynchPrediv = RTC_AUTO_1_SECOND;
if (HAL_RTC_Init(&RtcHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/*##-2- Configure RTC Tamper ###############################################*/
stamperstructure.Tamper = RTC_TAMPER_1;
stamperstructure.Trigger = RTC_TAMPERTRIGGER_LOWLEVEL;
if (HAL_RTCEx_SetTamper_IT(&RtcHandle, &stamperstructure) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Clear the Tamper interrupt pending bit */
__HAL_RTC_TAMPER_CLEAR_FLAG(&RtcHandle,RTC_FLAG_TAMP1F);
/*##-3- Write Data on the Back Up registers ################################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
HAL_RTCEx_BKUPWrite(&RtcHandle, aBKPDataReg[index], 0xDF59 + (index * 0x5A));
}
/*##-4- Check Data is stored on the Back Up registers ######################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
if (HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != (0xDF59 + (index * 0x5A)))
{
Error_Handler();
}
}
/* Turn LED2 on */
BSP_LED_On(LED2);
/*##-5- Wait for the tamper button is pressed ##############################*/
while (TamperStatus != SET);
/*##-6- Deactivate the tamper ##############################*/
HAL_RTCEx_DeactivateTamper(&RtcHandle, RTC_TAMPER_1);
/*##-7- Check Data is cleared on the Back Up registers #####################*/
for (index = 0; index < BACKUP_COUNT; index++)
{
if (HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != 0x00)
{
Error_Handler();
}
}
/* Infinite loop */
while (1)
{
/* Turn LED4 on */
BSP_LED_Toggle(LED4);
/* Delay */
HAL_Delay(100);
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint32_t index = 0;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure LED1, LED2, LED3 and LED4 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED2);
BSP_LED_Init(LED3);
BSP_LED_Init(LED4);
/* Configure the system clock to 168 MHz */
SystemClock_Config();
RtcHandle.Instance = RTC;
/*##-1- Configure the RTC peripheral #######################################*/
/* Configure RTC prescaler and RTC data registers */
/* RTC configured as follow:
- Hour Format = Format 24
- Asynch Prediv = Value according to source clock
- Synch Prediv = Value according to source clock
- OutPut = Output Disable
- OutPutPolarity = High Polarity
- OutPutType = Open Drain */
RtcHandle.Init.HourFormat = RTC_HOURFORMAT_24;
RtcHandle.Init.AsynchPrediv = RTC_ASYNCH_PREDIV;
RtcHandle.Init.SynchPrediv = RTC_SYNCH_PREDIV;
RtcHandle.Init.OutPut = RTC_OUTPUT_DISABLE;
RtcHandle.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
RtcHandle.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
if(HAL_RTC_Init(&RtcHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
/* Clear the Tamper Flag */
__HAL_RTC_TAMPER_CLEAR_FLAG(&RtcHandle,RTC_FLAG_TAMP1F);
/*##-2- Configure RTC Tamper ###############################################*/
/* Configure RTC Tamper */
RTC_TamperConfig();
/*##-3- Write Data on the Back Up registers ################################*/
for(index = 0; index < BACKUP_COUNT; index++)
{
HAL_RTCEx_BKUPWrite(&RtcHandle,aBKPDataReg[index], 0xDF59 + (index * 0x5A));
}
/*##-4- Check Data is stored on the Back Up registers ######################*/
for(index = 0; index < BACKUP_COUNT; index++)
{
if(HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != (0xDF59 + (index * 0x5A)))
{
Error_Handler();
}
}
/* Turn LED2 on */
BSP_LED_On(LED2);
/*##-5- Wait for the tamper button is pressed ##############################*/
while(TamperStatus != SET);
/*##-6- Deactivate the tamper ##############################################*/
HAL_RTCEx_DeactivateTamper(&RtcHandle, RTC_TAMPER_1);
/*##-7- Check Data is cleared on the Back Up registers #####################*/
for(index = 0; index < BACKUP_COUNT; index++)
{
if(HAL_RTCEx_BKUPRead(&RtcHandle, aBKPDataReg[index]) != 0x00)
{
Error_Handler();
}
}
/* Infinite loop */
while (1)
{
/* Toggle LED4 */
BSP_LED_Toggle(LED4);
/* Delay */
HAL_Delay(100);
}
}
