Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_rtc.c

Revision:

52:a51c77007319

Child:

70:c1fbde68b492

diff -r 7838415c99e7 -r a51c77007319 targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_rtc.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_rtc.c	Mon Dec 02 11:30:05 2013 +0000
@@ -0,0 +1,339 @@
+/**
+  ******************************************************************************
+  * @file    stm32f10x_rtc.c
+  * @author  MCD Application Team
+  * @version V3.5.0
+  * @date    11-March-2011
+  * @brief   This file provides all the RTC firmware functions.
+  ******************************************************************************
+  * @attention
+  *
+  * 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.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x_rtc.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Driver
+  * @{
+  */
+
+/** @defgroup RTC 
+  * @brief RTC driver modules
+  * @{
+  */
+
+/** @defgroup RTC_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */
+
+/** @defgroup RTC_Private_Defines
+  * @{
+  */
+#define RTC_LSB_MASK     ((uint32_t)0x0000FFFF)  /*!< RTC LSB Mask */
+#define PRLH_MSB_MASK    ((uint32_t)0x000F0000)  /*!< RTC Prescaler MSB Mask */
+
+/**
+  * @}
+  */
+
+/** @defgroup RTC_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup RTC_Private_Variables
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup RTC_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup RTC_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Enables or disables the specified RTC interrupts.
+  * @param  RTC_IT: specifies the RTC interrupts sources to be enabled or disabled.
+  *   This parameter can be any combination of the following values:
+  *     @arg RTC_IT_OW: Overflow interrupt
+  *     @arg RTC_IT_ALR: Alarm interrupt
+  *     @arg RTC_IT_SEC: Second interrupt
+  * @param  NewState: new state of the specified RTC interrupts.
+  *   This parameter can be: ENABLE or DISABLE.
+  * @retval None
+  */
+void RTC_ITConfig(uint16_t RTC_IT, FunctionalState NewState)
+{
+  /* Check the parameters */
+  assert_param(IS_RTC_IT(RTC_IT));  
+  assert_param(IS_FUNCTIONAL_STATE(NewState));
+  
+  if (NewState != DISABLE)
+  {
+    RTC->CRH |= RTC_IT;
+  }
+  else
+  {
+    RTC->CRH &= (uint16_t)~RTC_IT;
+  }
+}
+
+/**
+  * @brief  Enters the RTC configuration mode.
+  * @param  None
+  * @retval None
+  */
+void RTC_EnterConfigMode(void)
+{
+  /* Set the CNF flag to enter in the Configuration Mode */
+  RTC->CRL |= RTC_CRL_CNF;
+}
+
+/**
+  * @brief  Exits from the RTC configuration mode.
+  * @param  None
+  * @retval None
+  */
+void RTC_ExitConfigMode(void)
+{
+  /* Reset the CNF flag to exit from the Configuration Mode */
+  RTC->CRL &= (uint16_t)~((uint16_t)RTC_CRL_CNF); 
+}
+
+/**
+  * @brief  Gets the RTC counter value.
+  * @param  None
+  * @retval RTC counter value.
+  */
+uint32_t RTC_GetCounter(void)
+{
+  uint16_t tmp = 0;
+  tmp = RTC->CNTL;
+  return (((uint32_t)RTC->CNTH << 16 ) | tmp) ;
+}
+
+/**
+  * @brief  Sets the RTC counter value.
+  * @param  CounterValue: RTC counter new value.
+  * @retval None
+  */
+void RTC_SetCounter(uint32_t CounterValue)
+{ 
+  RTC_EnterConfigMode();
+  /* Set RTC COUNTER MSB word */
+  RTC->CNTH = CounterValue >> 16;
+  /* Set RTC COUNTER LSB word */
+  RTC->CNTL = (CounterValue & RTC_LSB_MASK);
+  RTC_ExitConfigMode();
+}
+
+/**
+  * @brief  Sets the RTC prescaler value.
+  * @param  PrescalerValue: RTC prescaler new value.
+  * @retval None
+  */
+void RTC_SetPrescaler(uint32_t PrescalerValue)
+{
+  /* Check the parameters */
+  assert_param(IS_RTC_PRESCALER(PrescalerValue));
+  
+  RTC_EnterConfigMode();
+  /* Set RTC PRESCALER MSB word */
+  RTC->PRLH = (PrescalerValue & PRLH_MSB_MASK) >> 16;
+  /* Set RTC PRESCALER LSB word */
+  RTC->PRLL = (PrescalerValue & RTC_LSB_MASK);
+  RTC_ExitConfigMode();
+}
+
+/**
+  * @brief  Sets the RTC alarm value.
+  * @param  AlarmValue: RTC alarm new value.
+  * @retval None
+  */
+void RTC_SetAlarm(uint32_t AlarmValue)
+{  
+  RTC_EnterConfigMode();
+  /* Set the ALARM MSB word */
+  RTC->ALRH = AlarmValue >> 16;
+  /* Set the ALARM LSB word */
+  RTC->ALRL = (AlarmValue & RTC_LSB_MASK);
+  RTC_ExitConfigMode();
+}
+
+/**
+  * @brief  Gets the RTC divider value.
+  * @param  None
+  * @retval RTC Divider value.
+  */
+uint32_t RTC_GetDivider(void)
+{
+  uint32_t tmp = 0x00;
+  tmp = ((uint32_t)RTC->DIVH & (uint32_t)0x000F) << 16;
+  tmp |= RTC->DIVL;
+  return tmp;
+}
+
+/**
+  * @brief  Waits until last write operation on RTC registers has finished.
+  * @note   This function must be called before any write to RTC registers.
+  * @param  None
+  * @retval None
+  */
+void RTC_WaitForLastTask(void)
+{
+  /* Loop until RTOFF flag is set */
+  while ((RTC->CRL & RTC_FLAG_RTOFF) == (uint16_t)RESET)
+  {
+  }
+}
+
+/**
+  * @brief  Waits until the RTC registers (RTC_CNT, RTC_ALR and RTC_PRL)
+  *   are synchronized with RTC APB clock.
+  * @note   This function must be called before any read operation after an APB reset
+  *   or an APB clock stop.
+  * @param  None
+  * @retval None
+  */
+void RTC_WaitForSynchro(void)
+{
+  /* Clear RSF flag */
+  RTC->CRL &= (uint16_t)~RTC_FLAG_RSF;
+  /* Loop until RSF flag is set */
+  while ((RTC->CRL & RTC_FLAG_RSF) == (uint16_t)RESET)
+  {
+  }
+}
+
+/**
+  * @brief  Checks whether the specified RTC flag is set or not.
+  * @param  RTC_FLAG: specifies the flag to check.
+  *   This parameter can be one the following values:
+  *     @arg RTC_FLAG_RTOFF: RTC Operation OFF flag
+  *     @arg RTC_FLAG_RSF: Registers Synchronized flag
+  *     @arg RTC_FLAG_OW: Overflow flag
+  *     @arg RTC_FLAG_ALR: Alarm flag
+  *     @arg RTC_FLAG_SEC: Second flag
+  * @retval The new state of RTC_FLAG (SET or RESET).
+  */
+FlagStatus RTC_GetFlagStatus(uint16_t RTC_FLAG)
+{
+  FlagStatus bitstatus = RESET;
+  
+  /* Check the parameters */
+  assert_param(IS_RTC_GET_FLAG(RTC_FLAG)); 
+  
+  if ((RTC->CRL & RTC_FLAG) != (uint16_t)RESET)
+  {
+    bitstatus = SET;
+  }
+  else
+  {
+    bitstatus = RESET;
+  }
+  return bitstatus;
+}
+
+/**
+  * @brief  Clears the RTC's pending flags.
+  * @param  RTC_FLAG: specifies the flag to clear.
+  *   This parameter can be any combination of the following values:
+  *     @arg RTC_FLAG_RSF: Registers Synchronized flag. This flag is cleared only after
+  *                        an APB reset or an APB Clock stop.
+  *     @arg RTC_FLAG_OW: Overflow flag
+  *     @arg RTC_FLAG_ALR: Alarm flag
+  *     @arg RTC_FLAG_SEC: Second flag
+  * @retval None
+  */
+void RTC_ClearFlag(uint16_t RTC_FLAG)
+{
+  /* Check the parameters */
+  assert_param(IS_RTC_CLEAR_FLAG(RTC_FLAG)); 
+    
+  /* Clear the corresponding RTC flag */
+  RTC->CRL &= (uint16_t)~RTC_FLAG;
+}
+
+/**
+  * @brief  Checks whether the specified RTC interrupt has occurred or not.
+  * @param  RTC_IT: specifies the RTC interrupts sources to check.
+  *   This parameter can be one of the following values:
+  *     @arg RTC_IT_OW: Overflow interrupt
+  *     @arg RTC_IT_ALR: Alarm interrupt
+  *     @arg RTC_IT_SEC: Second interrupt
+  * @retval The new state of the RTC_IT (SET or RESET).
+  */
+ITStatus RTC_GetITStatus(uint16_t RTC_IT)
+{
+  ITStatus bitstatus = RESET;
+  /* Check the parameters */
+  assert_param(IS_RTC_GET_IT(RTC_IT)); 
+  
+  bitstatus = (ITStatus)(RTC->CRL & RTC_IT);
+  if (((RTC->CRH & RTC_IT) != (uint16_t)RESET) && (bitstatus != (uint16_t)RESET))
+  {
+    bitstatus = SET;
+  }
+  else
+  {
+    bitstatus = RESET;
+  }
+  return bitstatus;
+}
+
+/**
+  * @brief  Clears the RTC's interrupt pending bits.
+  * @param  RTC_IT: specifies the interrupt pending bit to clear.
+  *   This parameter can be any combination of the following values:
+  *     @arg RTC_IT_OW: Overflow interrupt
+  *     @arg RTC_IT_ALR: Alarm interrupt
+  *     @arg RTC_IT_SEC: Second interrupt
+  * @retval None
+  */
+void RTC_ClearITPendingBit(uint16_t RTC_IT)
+{
+  /* Check the parameters */
+  assert_param(IS_RTC_IT(RTC_IT));  
+  
+  /* Clear the corresponding RTC pending bit */
+  RTC->CRL &= (uint16_t)~RTC_IT;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/