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Add support for RTC, used as a calendar.

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Damien 2013-10-26 02:06:37 +01:00
parent 58a1b4c6cf
commit 8128941e6c
6 changed files with 4575 additions and 0 deletions
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2
stm/Makefile
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@ -64,6 +64,8 @@ SRC_STM = \
stm32f4xx_gpio.c \ stm32f4xx_gpio.c \
stm32f4xx_tim.c \ stm32f4xx_tim.c \
stm32f4xx_sdio.c \ stm32f4xx_sdio.c \
stm32f4xx_pwr.c \
stm32f4xx_rtc.c \
stm_misc.c \ stm_misc.c \
usb_core.c \ usb_core.c \
usb_dcd.c \ usb_dcd.c \

679
stm/lib/stm32f4xx_pwr.c Normal file
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@ -0,0 +1,679 @@
/**
******************************************************************************
* @file stm32f4xx_pwr.c
* @author MCD Application Team
* @version V1.1.0
* @date 11-January-2013
* @brief This file provides firmware functions to manage the following
* functionalities of the Power Controller (PWR) peripheral:
* + Backup Domain Access
* + PVD configuration
* + WakeUp pin configuration
* + Main and Backup Regulators configuration
* + FLASH Power Down configuration
* + Low Power modes configuration
* + Flags management
*
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_conf.h"
#include "stm32f4xx_pwr.h"
#include "stm32f4xx_rcc.h"
/** @addtogroup STM32F4xx_StdPeriph_Driver
* @{
*/
/** @defgroup PWR
* @brief PWR driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* --------- PWR registers bit address in the alias region ---------- */
#define PWR_OFFSET (PWR_BASE - PERIPH_BASE)
/* --- CR Register ---*/
/* Alias word address of DBP bit */
#define CR_OFFSET (PWR_OFFSET + 0x00)
#define DBP_BitNumber 0x08
#define CR_DBP_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (DBP_BitNumber * 4))
/* Alias word address of PVDE bit */
#define PVDE_BitNumber 0x04
#define CR_PVDE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PVDE_BitNumber * 4))
/* Alias word address of FPDS bit */
#define FPDS_BitNumber 0x09
#define CR_FPDS_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (FPDS_BitNumber * 4))
/* Alias word address of PMODE bit */
#define PMODE_BitNumber 0x0E
#define CR_PMODE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PMODE_BitNumber * 4))
/* --- CSR Register ---*/
/* Alias word address of EWUP bit */
#define CSR_OFFSET (PWR_OFFSET + 0x04)
#define EWUP_BitNumber 0x08
#define CSR_EWUP_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (EWUP_BitNumber * 4))
/* Alias word address of BRE bit */
#define BRE_BitNumber 0x09
#define CSR_BRE_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (BRE_BitNumber * 4))
/* ------------------ PWR registers bit mask ------------------------ */
/* CR register bit mask */
#define CR_DS_MASK ((uint32_t)0xFFFFFFFC)
#define CR_PLS_MASK ((uint32_t)0xFFFFFF1F)
#define CR_VOS_MASK ((uint32_t)0xFFFF3FFF)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup PWR_Private_Functions
* @{
*/
/** @defgroup PWR_Group1 Backup Domain Access function
* @brief Backup Domain Access function
*
@verbatim
===============================================================================
##### Backup Domain Access function #####
===============================================================================
[..]
After reset, the backup domain (RTC registers, RTC backup data
registers and backup SRAM) is protected against possible unwanted
write accesses.
To enable access to the RTC Domain and RTC registers, proceed as follows:
(+) Enable the Power Controller (PWR) APB1 interface clock using the
RCC_APB1PeriphClockCmd() function.
(+) Enable access to RTC domain using the PWR_BackupAccessCmd() function.
@endverbatim
* @{
*/
/**
* @brief Deinitializes the PWR peripheral registers to their default reset values.
* @param None
* @retval None
*/
void PWR_DeInit(void)
{
RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE);
RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, DISABLE);
}
/**
* @brief Enables or disables access to the backup domain (RTC registers, RTC
* backup data registers and backup SRAM).
* @note If the HSE divided by 2, 3, ..31 is used as the RTC clock, the
* Backup Domain Access should be kept enabled.
* @param NewState: new state of the access to the backup domain.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_BackupAccessCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CR_DBP_BB = (uint32_t)NewState;
}
/**
* @}
*/
/** @defgroup PWR_Group2 PVD configuration functions
* @brief PVD configuration functions
*
@verbatim
===============================================================================
##### PVD configuration functions #####
===============================================================================
[..]
(+) The PVD is used to monitor the VDD power supply by comparing it to a
threshold selected by the PVD Level (PLS[2:0] bits in the PWR_CR).
(+) A PVDO flag is available to indicate if VDD/VDDA is higher or lower
than the PVD threshold. This event is internally connected to the EXTI
line16 and can generate an interrupt if enabled through the EXTI registers.
(+) The PVD is stopped in Standby mode.
@endverbatim
* @{
*/
/**
* @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD).
* @param PWR_PVDLevel: specifies the PVD detection level
* This parameter can be one of the following values:
* @arg PWR_PVDLevel_0
* @arg PWR_PVDLevel_1
* @arg PWR_PVDLevel_2
* @arg PWR_PVDLevel_3
* @arg PWR_PVDLevel_4
* @arg PWR_PVDLevel_5
* @arg PWR_PVDLevel_6
* @arg PWR_PVDLevel_7
* @note Refer to the electrical characteristics of your device datasheet for
* more details about the voltage threshold corresponding to each
* detection level.
* @retval None
*/
void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_PVD_LEVEL(PWR_PVDLevel));
tmpreg = PWR->CR;
/* Clear PLS[7:5] bits */
tmpreg &= CR_PLS_MASK;
/* Set PLS[7:5] bits according to PWR_PVDLevel value */
tmpreg |= PWR_PVDLevel;
/* Store the new value */
PWR->CR = tmpreg;
}
/**
* @brief Enables or disables the Power Voltage Detector(PVD).
* @param NewState: new state of the PVD.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_PVDCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CR_PVDE_BB = (uint32_t)NewState;
}
/**
* @}
*/
/** @defgroup PWR_Group3 WakeUp pin configuration functions
* @brief WakeUp pin configuration functions
*
@verbatim
===============================================================================
##### WakeUp pin configuration functions #####
===============================================================================
[..]
(+) WakeUp pin is used to wakeup the system from Standby mode. This pin is
forced in input pull down configuration and is active on rising edges.
(+) There is only one WakeUp pin: WakeUp Pin 1 on PA.00.
@endverbatim
* @{
*/
/**
* @brief Enables or disables the WakeUp Pin functionality.
* @param NewState: new state of the WakeUp Pin functionality.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_WakeUpPinCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CSR_EWUP_BB = (uint32_t)NewState;
}
/**
* @}
*/
/** @defgroup PWR_Group4 Main and Backup Regulators configuration functions
* @brief Main and Backup Regulators configuration functions
*
@verbatim
===============================================================================
##### Main and Backup Regulators configuration functions #####
===============================================================================
[..]
(+) The backup domain includes 4 Kbytes of backup SRAM accessible only from
the CPU, and address in 32-bit, 16-bit or 8-bit mode. Its content is
retained even in Standby or VBAT mode when the low power backup regulator
is enabled. It can be considered as an internal EEPROM when VBAT is
always present. You can use the PWR_BackupRegulatorCmd() function to
enable the low power backup regulator and use the PWR_GetFlagStatus
(PWR_FLAG_BRR) to check if it is ready or not.
(+) When the backup domain is supplied by VDD (analog switch connected to VDD)
the backup SRAM is powered from VDD which replaces the VBAT power supply to
save battery life.
(+) The backup SRAM is not mass erased by an tamper event. It is read
protected to prevent confidential data, such as cryptographic private
key, from being accessed. The backup SRAM can be erased only through
the Flash interface when a protection level change from level 1 to
level 0 is requested.
-@- Refer to the description of Read protection (RDP) in the Flash
programming manual.
(+) The main internal regulator can be configured to have a tradeoff between
performance and power consumption when the device does not operate at
the maximum frequency. This is done through PWR_MainRegulatorModeConfig()
function which configure VOS bit in PWR_CR register:
(++) When this bit is set (Regulator voltage output Scale 1 mode selected)
the System frequency can go up to 168 MHz.
(++) When this bit is reset (Regulator voltage output Scale 2 mode selected)
the System frequency can go up to 144 MHz.
Refer to the datasheets for more details.
@endverbatim
* @{
*/
/**
* @brief Enables or disables the Backup Regulator.
* @param NewState: new state of the Backup Regulator.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_BackupRegulatorCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CSR_BRE_BB = (uint32_t)NewState;
}
/**
* @brief Configures the main internal regulator output voltage.
* @param PWR_Regulator_Voltage: specifies the regulator output voltage to achieve
* a tradeoff between performance and power consumption when the device does
* not operate at the maximum frequency (refer to the datasheets for more details).
* This parameter can be one of the following values:
* @arg PWR_Regulator_Voltage_Scale1: Regulator voltage output Scale 1 mode,
* System frequency up to 168 MHz.
* @arg PWR_Regulator_Voltage_Scale2: Regulator voltage output Scale 2 mode,
* System frequency up to 144 MHz.
* @arg PWR_Regulator_Voltage_Scale3: Regulator voltage output Scale 3 mode,
* System frequency up to 120 MHz
* @retval None
*/
void PWR_MainRegulatorModeConfig(uint32_t PWR_Regulator_Voltage)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_REGULATOR_VOLTAGE(PWR_Regulator_Voltage));
tmpreg = PWR->CR;
/* Clear VOS[15:14] bits */
tmpreg &= CR_VOS_MASK;
/* Set VOS[15:14] bits according to PWR_Regulator_Voltage value */
tmpreg |= PWR_Regulator_Voltage;
/* Store the new value */
PWR->CR = tmpreg;
}
/**
* @}
*/
/** @defgroup PWR_Group5 FLASH Power Down configuration functions
* @brief FLASH Power Down configuration functions
*
@verbatim
===============================================================================
##### FLASH Power Down configuration functions #####
===============================================================================
[..]
(+) By setting the FPDS bit in the PWR_CR register by using the
PWR_FlashPowerDownCmd() function, the Flash memory also enters power
down mode when the device enters Stop mode. When the Flash memory
is in power down mode, an additional startup delay is incurred when
waking up from Stop mode.
@endverbatim
* @{
*/
/**
* @brief Enables or disables the Flash Power Down in STOP mode.
* @param NewState: new state of the Flash power mode.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void PWR_FlashPowerDownCmd(FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_FUNCTIONAL_STATE(NewState));
*(__IO uint32_t *) CR_FPDS_BB = (uint32_t)NewState;
}
/**
* @}
*/
/** @defgroup PWR_Group6 Low Power modes configuration functions
* @brief Low Power modes configuration functions
*
@verbatim
===============================================================================
##### Low Power modes configuration functions #####
===============================================================================
[..]
The devices feature 3 low-power modes:
(+) Sleep mode: Cortex-M4 core stopped, peripherals kept running.
(+) Stop mode: all clocks are stopped, regulator running, regulator
in low power mode
(+) Standby mode: 1.2V domain powered off.
*** Sleep mode ***
==================
[..]
(+) Entry:
(++) The Sleep mode is entered by using the __WFI() or __WFE() functions.
(+) Exit:
(++) Any peripheral interrupt acknowledged by the nested vectored interrupt
controller (NVIC) can wake up the device from Sleep mode.
*** Stop mode ***
=================
[..]
In Stop mode, all clocks in the 1.2V domain are stopped, the PLL, the HSI,
and the HSE RC oscillators are disabled. Internal SRAM and register contents
are preserved.
The voltage regulator can be configured either in normal or low-power mode.
To minimize the consumption In Stop mode, FLASH can be powered off before
entering the Stop mode. It can be switched on again by software after exiting
the Stop mode using the PWR_FlashPowerDownCmd() function.
(+) Entry:
(++) The Stop mode is entered using the PWR_EnterSTOPMode(PWR_Regulator_LowPower,)
function with regulator in LowPower or with Regulator ON.
(+) Exit:
(++) Any EXTI Line (Internal or External) configured in Interrupt/Event mode.
*** Standby mode ***
====================
[..]
The Standby mode allows to achieve the lowest power consumption. It is based
on the Cortex-M4 deepsleep mode, with the voltage regulator disabled.
The 1.2V domain is consequently powered off. The PLL, the HSI oscillator and
the HSE oscillator are also switched off. SRAM and register contents are lost
except for the RTC registers, RTC backup registers, backup SRAM and Standby
circuitry.
The voltage regulator is OFF.
(+) Entry:
(++) The Standby mode is entered using the PWR_EnterSTANDBYMode() function.
(+) Exit:
(++) WKUP pin rising edge, RTC alarm (Alarm A and Alarm B), RTC wakeup,
tamper event, time-stamp event, external reset in NRST pin, IWDG reset.
*** Auto-wakeup (AWU) from low-power mode ***
=============================================
[..]
The MCU can be woken up from low-power mode by an RTC Alarm event, an RTC
Wakeup event, a tamper event, a time-stamp event, or a comparator event,
without depending on an external interrupt (Auto-wakeup mode).
(#) RTC auto-wakeup (AWU) from the Stop mode
(++) To wake up from the Stop mode with an RTC alarm event, it is necessary to:
(+++) Configure the EXTI Line 17 to be sensitive to rising edges (Interrupt
or Event modes) using the EXTI_Init() function.
(+++) Enable the RTC Alarm Interrupt using the RTC_ITConfig() function
(+++) Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
(++) To wake up from the Stop mode with an RTC Tamper or time stamp event, it
is necessary to:
(+++) Configure the EXTI Line 21 to be sensitive to rising edges (Interrupt
or Event modes) using the EXTI_Init() function.
(+++) Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function
(+++) Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and RTC_TamperCmd()
functions.
(++) To wake up from the Stop mode with an RTC WakeUp event, it is necessary to:
(+++) Configure the EXTI Line 22 to be sensitive to rising edges (Interrupt
or Event modes) using the EXTI_Init() function.
(+++) Enable the RTC WakeUp Interrupt using the RTC_ITConfig() function
(+++) Configure the RTC to generate the RTC WakeUp event using the RTC_WakeUpClockConfig(),
RTC_SetWakeUpCounter() and RTC_WakeUpCmd() functions.
(#) RTC auto-wakeup (AWU) from the Standby mode
(++) To wake up from the Standby mode with an RTC alarm event, it is necessary to:
(+++) Enable the RTC Alarm Interrupt using the RTC_ITConfig() function
(+++) Configure the RTC to generate the RTC alarm using the RTC_SetAlarm()
and RTC_AlarmCmd() functions.
(++) To wake up from the Standby mode with an RTC Tamper or time stamp event, it
is necessary to:
(+++) Enable the RTC Tamper or time stamp Interrupt using the RTC_ITConfig()
function
(+++) Configure the RTC to detect the tamper or time stamp event using the
RTC_TimeStampConfig(), RTC_TamperTriggerConfig() and RTC_TamperCmd()
functions.
(++) To wake up from the Standby mode with an RTC WakeUp event, it is necessary to:
(+++) Enable the RTC WakeUp Interrupt using the RTC_ITConfig() function
(+++) Configure the RTC to generate the RTC WakeUp event using the RTC_WakeUpClockConfig(),
RTC_SetWakeUpCounter() and RTC_WakeUpCmd() functions.
@endverbatim
* @{
*/
/**
* @brief Enters STOP mode.
*
* @note In Stop mode, all I/O pins keep the same state as in Run mode.
* @note When exiting Stop mode by issuing an interrupt or a wakeup event,
* the HSI RC oscillator is selected as system clock.
* @note When the voltage regulator operates in low power mode, an additional
* startup delay is incurred when waking up from Stop mode.
* By keeping the internal regulator ON during Stop mode, the consumption
* is higher although the startup time is reduced.
*
* @param PWR_Regulator: specifies the regulator state in STOP mode.
* This parameter can be one of the following values:
* @arg PWR_Regulator_ON: STOP mode with regulator ON
* @arg PWR_Regulator_LowPower: STOP mode with regulator in low power mode
* @param PWR_STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction.
* This parameter can be one of the following values:
* @arg PWR_STOPEntry_WFI: enter STOP mode with WFI instruction
* @arg PWR_STOPEntry_WFE: enter STOP mode with WFE instruction
* @retval None
*/
void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_PWR_REGULATOR(PWR_Regulator));
assert_param(IS_PWR_STOP_ENTRY(PWR_STOPEntry));
/* Select the regulator state in STOP mode ---------------------------------*/
tmpreg = PWR->CR;
/* Clear PDDS and LPDSR bits */
tmpreg &= CR_DS_MASK;
/* Set LPDSR bit according to PWR_Regulator value */
tmpreg |= PWR_Regulator;
/* Store the new value */
PWR->CR = tmpreg;
/* Set SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Select STOP mode entry --------------------------------------------------*/
if(PWR_STOPEntry == PWR_STOPEntry_WFI)
{
/* Request Wait For Interrupt */
__WFI();
}
else
{
/* Request Wait For Event */
__WFE();
}
/* Reset SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR &= (uint32_t)~((uint32_t)SCB_SCR_SLEEPDEEP_Msk);
}
/**
* @brief Enters STANDBY mode.
* @note In Standby mode, all I/O pins are high impedance except for:
* - Reset pad (still available)
* - RTC_AF1 pin (PC13) if configured for tamper, time-stamp, RTC
* Alarm out, or RTC clock calibration out.
* - RTC_AF2 pin (PI8) if configured for tamper or time-stamp.
* - WKUP pin 1 (PA0) if enabled.
* @param None
* @retval None
*/
void PWR_EnterSTANDBYMode(void)
{
/* Clear Wakeup flag */
PWR->CR |= PWR_CR_CWUF;
/* Select STANDBY mode */
PWR->CR |= PWR_CR_PDDS;
/* Set SLEEPDEEP bit of Cortex System Control Register */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* This option is used to ensure that store operations are completed */
#if defined ( __CC_ARM )
__force_stores();
#endif
/* Request Wait For Interrupt */
__WFI();
}
/**
* @}
*/
/** @defgroup PWR_Group7 Flags management functions
* @brief Flags management functions
*
@verbatim
===============================================================================
##### Flags management functions #####
===============================================================================
@endverbatim
* @{
*/
/**
* @brief Checks whether the specified PWR flag is set or not.
* @param PWR_FLAG: specifies the flag to check.
* This parameter can be one of the following values:
* @arg PWR_FLAG_WU: Wake Up flag. This flag indicates that a wakeup event
* was received from the WKUP pin or from the RTC alarm (Alarm A
* or Alarm B), RTC Tamper event, RTC TimeStamp event or RTC Wakeup.
* An additional wakeup event is detected if the WKUP pin is enabled
* (by setting the EWUP bit) when the WKUP pin level is already high.
* @arg PWR_FLAG_SB: StandBy flag. This flag indicates that the system was
* resumed from StandBy mode.
* @arg PWR_FLAG_PVDO: PVD Output. This flag is valid only if PVD is enabled
* by the PWR_PVDCmd() function. The PVD is stopped by Standby mode
* For this reason, this bit is equal to 0 after Standby or reset
* until the PVDE bit is set.
* @arg PWR_FLAG_BRR: Backup regulator ready flag. This bit is not reset
* when the device wakes up from Standby mode or by a system reset
* or power reset.
* @arg PWR_FLAG_VOSRDY: This flag indicates that the Regulator voltage
* scaling output selection is ready.
* @retval The new state of PWR_FLAG (SET or RESET).
*/
FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG)
{
FlagStatus bitstatus = RESET;
/* Check the parameters */
assert_param(IS_PWR_GET_FLAG(PWR_FLAG));
if ((PWR->CSR & PWR_FLAG) != (uint32_t)RESET)
{
bitstatus = SET;
}
else
{
bitstatus = RESET;
}
/* Return the flag status */
return bitstatus;
}
/**
* @brief Clears the PWR's pending flags.
* @param PWR_FLAG: specifies the flag to clear.
* This parameter can be one of the following values:
* @arg PWR_FLAG_WU: Wake Up flag
* @arg PWR_FLAG_SB: StandBy flag
* @retval None
*/
void PWR_ClearFlag(uint32_t PWR_FLAG)
{
/* Check the parameters */
assert_param(IS_PWR_CLEAR_FLAG(PWR_FLAG));
PWR->CR |= PWR_FLAG << 2;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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stm/lib/stm32f4xx_pwr.h Normal file
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/**
******************************************************************************
* @file stm32f4xx_pwr.h
* @author MCD Application Team
* @version V1.1.0
* @date 11-January-2013
* @brief This file contains all the functions prototypes for the PWR firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_PWR_H
#define __STM32F4xx_PWR_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
/** @addtogroup STM32F4xx_StdPeriph_Driver
* @{
*/
/** @addtogroup PWR
* @{
*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup PWR_Exported_Constants
* @{
*/
/** @defgroup PWR_PVD_detection_level
* @{
*/
#define PWR_PVDLevel_0 PWR_CR_PLS_LEV0
#define PWR_PVDLevel_1 PWR_CR_PLS_LEV1
#define PWR_PVDLevel_2 PWR_CR_PLS_LEV2
#define PWR_PVDLevel_3 PWR_CR_PLS_LEV3
#define PWR_PVDLevel_4 PWR_CR_PLS_LEV4
#define PWR_PVDLevel_5 PWR_CR_PLS_LEV5
#define PWR_PVDLevel_6 PWR_CR_PLS_LEV6
#define PWR_PVDLevel_7 PWR_CR_PLS_LEV7
#define IS_PWR_PVD_LEVEL(LEVEL) (((LEVEL) == PWR_PVDLevel_0) || ((LEVEL) == PWR_PVDLevel_1)|| \
((LEVEL) == PWR_PVDLevel_2) || ((LEVEL) == PWR_PVDLevel_3)|| \
((LEVEL) == PWR_PVDLevel_4) || ((LEVEL) == PWR_PVDLevel_5)|| \
((LEVEL) == PWR_PVDLevel_6) || ((LEVEL) == PWR_PVDLevel_7))
/**
* @}
*/
/** @defgroup PWR_Regulator_state_in_STOP_mode
* @{
*/
#define PWR_Regulator_ON ((uint32_t)0x00000000)
#define PWR_Regulator_LowPower PWR_CR_LPDS
#define IS_PWR_REGULATOR(REGULATOR) (((REGULATOR) == PWR_Regulator_ON) || \
((REGULATOR) == PWR_Regulator_LowPower))
/**
* @}
*/
/** @defgroup PWR_STOP_mode_entry
* @{
*/
#define PWR_STOPEntry_WFI ((uint8_t)0x01)
#define PWR_STOPEntry_WFE ((uint8_t)0x02)
#define IS_PWR_STOP_ENTRY(ENTRY) (((ENTRY) == PWR_STOPEntry_WFI) || ((ENTRY) == PWR_STOPEntry_WFE))
/** @defgroup PWR_Regulator_Voltage_Scale
* @{
*/
#define PWR_Regulator_Voltage_Scale1 ((uint32_t)0x0000C000)
#define PWR_Regulator_Voltage_Scale2 ((uint32_t)0x00008000)
#define PWR_Regulator_Voltage_Scale3 ((uint32_t)0x00004000)
#define IS_PWR_REGULATOR_VOLTAGE(VOLTAGE) (((VOLTAGE) == PWR_Regulator_Voltage_Scale1) || \
((VOLTAGE) == PWR_Regulator_Voltage_Scale2) || \
((VOLTAGE) == PWR_Regulator_Voltage_Scale3))
/**
* @}
*/
/** @defgroup PWR_Flag
* @{
*/
#define PWR_FLAG_WU PWR_CSR_WUF
#define PWR_FLAG_SB PWR_CSR_SBF
#define PWR_FLAG_PVDO PWR_CSR_PVDO
#define PWR_FLAG_BRR PWR_CSR_BRR
#define PWR_FLAG_VOSRDY PWR_CSR_VOSRDY
/** @defgroup PWR_Flag_Legacy
* @{
*/
#define PWR_FLAG_REGRDY PWR_FLAG_VOSRDY
/**
* @}
*/
#define IS_PWR_GET_FLAG(FLAG) (((FLAG) == PWR_FLAG_WU) || ((FLAG) == PWR_FLAG_SB) || \
((FLAG) == PWR_FLAG_PVDO) || ((FLAG) == PWR_FLAG_BRR) || \
((FLAG) == PWR_FLAG_VOSRDY))
#define IS_PWR_CLEAR_FLAG(FLAG) (((FLAG) == PWR_FLAG_WU) || ((FLAG) == PWR_FLAG_SB))
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/* Function used to set the PWR configuration to the default reset state ******/
void PWR_DeInit(void);
/* Backup Domain Access function **********************************************/
void PWR_BackupAccessCmd(FunctionalState NewState);
/* PVD configuration functions ************************************************/
void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel);
void PWR_PVDCmd(FunctionalState NewState);
/* WakeUp pins configuration functions ****************************************/
void PWR_WakeUpPinCmd(FunctionalState NewState);
/* Main and Backup Regulators configuration functions *************************/
void PWR_BackupRegulatorCmd(FunctionalState NewState);
void PWR_MainRegulatorModeConfig(uint32_t PWR_Regulator_Voltage);
/* FLASH Power Down configuration functions ***********************************/
void PWR_FlashPowerDownCmd(FunctionalState NewState);
/* Low Power modes configuration functions ************************************/
void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry);
void PWR_EnterSTANDBYMode(void);
/* Flags management functions *************************************************/
FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG);
void PWR_ClearFlag(uint32_t PWR_FLAG);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F4xx_PWR_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file stm32f4xx_rtc.h
* @author MCD Application Team
* @version V1.1.0
* @date 11-January-2013
* @brief This file contains all the functions prototypes for the RTC firmware
* library.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_RTC_H
#define __STM32F4xx_RTC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
/** @addtogroup STM32F4xx_StdPeriph_Driver
* @{
*/
/** @addtogroup RTC
* @{
*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief RTC Init structures definition
*/
typedef struct
{
uint32_t RTC_HourFormat; /*!< Specifies the RTC Hour Format.
This parameter can be a value of @ref RTC_Hour_Formats */
uint32_t RTC_AsynchPrediv; /*!< Specifies the RTC Asynchronous Predivider value.
This parameter must be set to a value lower than 0x7F */
uint32_t RTC_SynchPrediv; /*!< Specifies the RTC Synchronous Predivider value.
This parameter must be set to a value lower than 0x7FFF */
}RTC_InitTypeDef;
/**
* @brief RTC Time structure definition
*/
typedef struct
{
uint8_t RTC_Hours; /*!< Specifies the RTC Time Hour.
This parameter must be set to a value in the 0-12 range
if the RTC_HourFormat_12 is selected or 0-23 range if
the RTC_HourFormat_24 is selected. */
uint8_t RTC_Minutes; /*!< Specifies the RTC Time Minutes.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_Seconds; /*!< Specifies the RTC Time Seconds.
This parameter must be set to a value in the 0-59 range. */
uint8_t RTC_H12; /*!< Specifies the RTC AM/PM Time.
This parameter can be a value of @ref RTC_AM_PM_Definitions */
}RTC_TimeTypeDef;
/**
* @brief RTC Date structure definition
*/
typedef struct
{
uint8_t RTC_WeekDay; /*!< Specifies the RTC Date WeekDay.
This parameter can be a value of @ref RTC_WeekDay_Definitions */
uint8_t RTC_Month; /*!< Specifies the RTC Date Month (in BCD format).
This parameter can be a value of @ref RTC_Month_Date_Definitions */
uint8_t RTC_Date; /*!< Specifies the RTC Date.
This parameter must be set to a value in the 1-31 range. */
uint8_t RTC_Year; /*!< Specifies the RTC Date Year.
This parameter must be set to a value in the 0-99 range. */
}RTC_DateTypeDef;
/**
* @brief RTC Alarm structure definition
*/
typedef struct
{
RTC_TimeTypeDef RTC_AlarmTime; /*!< Specifies the RTC Alarm Time members. */
uint32_t RTC_AlarmMask; /*!< Specifies the RTC Alarm Masks.
This parameter can be a value of @ref RTC_AlarmMask_Definitions */
uint32_t RTC_AlarmDateWeekDaySel; /*!< Specifies the RTC Alarm is on Date or WeekDay.
This parameter can be a value of @ref RTC_AlarmDateWeekDay_Definitions */
uint8_t RTC_AlarmDateWeekDay; /*!< Specifies the RTC Alarm Date/WeekDay.
If the Alarm Date is selected, this parameter
must be set to a value in the 1-31 range.
If the Alarm WeekDay is selected, this
parameter can be a value of @ref RTC_WeekDay_Definitions */
}RTC_AlarmTypeDef;
/* Exported constants --------------------------------------------------------*/
/** @defgroup RTC_Exported_Constants
* @{
*/
/** @defgroup RTC_Hour_Formats
* @{
*/
#define RTC_HourFormat_24 ((uint32_t)0x00000000)
#define RTC_HourFormat_12 ((uint32_t)0x00000040)
#define IS_RTC_HOUR_FORMAT(FORMAT) (((FORMAT) == RTC_HourFormat_12) || \
((FORMAT) == RTC_HourFormat_24))
/**
* @}
*/
/** @defgroup RTC_Asynchronous_Predivider
* @{
*/
#define IS_RTC_ASYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7F)
/**
* @}
*/
/** @defgroup RTC_Synchronous_Predivider
* @{
*/
#define IS_RTC_SYNCH_PREDIV(PREDIV) ((PREDIV) <= 0x7FFF)
/**
* @}
*/
/** @defgroup RTC_Time_Definitions
* @{
*/
#define IS_RTC_HOUR12(HOUR) (((HOUR) > 0) && ((HOUR) <= 12))
#define IS_RTC_HOUR24(HOUR) ((HOUR) <= 23)
#define IS_RTC_MINUTES(MINUTES) ((MINUTES) <= 59)
#define IS_RTC_SECONDS(SECONDS) ((SECONDS) <= 59)
/**
* @}
*/
/** @defgroup RTC_AM_PM_Definitions
* @{
*/
#define RTC_H12_AM ((uint8_t)0x00)
#define RTC_H12_PM ((uint8_t)0x40)
#define IS_RTC_H12(PM) (((PM) == RTC_H12_AM) || ((PM) == RTC_H12_PM))
/**
* @}
*/
/** @defgroup RTC_Year_Date_Definitions
* @{
*/
#define IS_RTC_YEAR(YEAR) ((YEAR) <= 99)
/**
* @}
*/
/** @defgroup RTC_Month_Date_Definitions
* @{
*/
/* Coded in BCD format */
#define RTC_Month_January ((uint8_t)0x01)
#define RTC_Month_February ((uint8_t)0x02)
#define RTC_Month_March ((uint8_t)0x03)
#define RTC_Month_April ((uint8_t)0x04)
#define RTC_Month_May ((uint8_t)0x05)
#define RTC_Month_June ((uint8_t)0x06)
#define RTC_Month_July ((uint8_t)0x07)
#define RTC_Month_August ((uint8_t)0x08)
#define RTC_Month_September ((uint8_t)0x09)
#define RTC_Month_October ((uint8_t)0x10)
#define RTC_Month_November ((uint8_t)0x11)
#define RTC_Month_December ((uint8_t)0x12)
#define IS_RTC_MONTH(MONTH) (((MONTH) >= 1) && ((MONTH) <= 12))
#define IS_RTC_DATE(DATE) (((DATE) >= 1) && ((DATE) <= 31))
/**
* @}
*/
/** @defgroup RTC_WeekDay_Definitions
* @{
*/
#define RTC_Weekday_Monday ((uint8_t)0x01)
#define RTC_Weekday_Tuesday ((uint8_t)0x02)
#define RTC_Weekday_Wednesday ((uint8_t)0x03)
#define RTC_Weekday_Thursday ((uint8_t)0x04)
#define RTC_Weekday_Friday ((uint8_t)0x05)
#define RTC_Weekday_Saturday ((uint8_t)0x06)
#define RTC_Weekday_Sunday ((uint8_t)0x07)
#define IS_RTC_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_Alarm_Definitions
* @{
*/
#define IS_RTC_ALARM_DATE_WEEKDAY_DATE(DATE) (((DATE) > 0) && ((DATE) <= 31))
#define IS_RTC_ALARM_DATE_WEEKDAY_WEEKDAY(WEEKDAY) (((WEEKDAY) == RTC_Weekday_Monday) || \
((WEEKDAY) == RTC_Weekday_Tuesday) || \
((WEEKDAY) == RTC_Weekday_Wednesday) || \
((WEEKDAY) == RTC_Weekday_Thursday) || \
((WEEKDAY) == RTC_Weekday_Friday) || \
((WEEKDAY) == RTC_Weekday_Saturday) || \
((WEEKDAY) == RTC_Weekday_Sunday))
/**
* @}
*/
/** @defgroup RTC_AlarmDateWeekDay_Definitions
* @{
*/
#define RTC_AlarmDateWeekDaySel_Date ((uint32_t)0x00000000)
#define RTC_AlarmDateWeekDaySel_WeekDay ((uint32_t)0x40000000)
#define IS_RTC_ALARM_DATE_WEEKDAY_SEL(SEL) (((SEL) == RTC_AlarmDateWeekDaySel_Date) || \
((SEL) == RTC_AlarmDateWeekDaySel_WeekDay))
/**
* @}
*/
/** @defgroup RTC_AlarmMask_Definitions
* @{
*/
#define RTC_AlarmMask_None ((uint32_t)0x00000000)
#define RTC_AlarmMask_DateWeekDay ((uint32_t)0x80000000)
#define RTC_AlarmMask_Hours ((uint32_t)0x00800000)
#define RTC_AlarmMask_Minutes ((uint32_t)0x00008000)
#define RTC_AlarmMask_Seconds ((uint32_t)0x00000080)
#define RTC_AlarmMask_All ((uint32_t)0x80808080)
#define IS_ALARM_MASK(MASK) (((MASK) & 0x7F7F7F7F) == (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarms_Definitions
* @{
*/
#define RTC_Alarm_A ((uint32_t)0x00000100)
#define RTC_Alarm_B ((uint32_t)0x00000200)
#define IS_RTC_ALARM(ALARM) (((ALARM) == RTC_Alarm_A) || ((ALARM) == RTC_Alarm_B))
#define IS_RTC_CMD_ALARM(ALARM) (((ALARM) & (RTC_Alarm_A | RTC_Alarm_B)) != (uint32_t)RESET)
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Masks_Definitions
* @{
*/
#define RTC_AlarmSubSecondMask_All ((uint32_t)0x00000000) /*!< All Alarm SS fields are masked.
There is no comparison on sub seconds
for Alarm */
#define RTC_AlarmSubSecondMask_SS14_1 ((uint32_t)0x01000000) /*!< SS[14:1] are don't care in Alarm
comparison. Only SS[0] is compared. */
#define RTC_AlarmSubSecondMask_SS14_2 ((uint32_t)0x02000000) /*!< SS[14:2] are don't care in Alarm
comparison. Only SS[1:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_3 ((uint32_t)0x03000000) /*!< SS[14:3] are don't care in Alarm
comparison. Only SS[2:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_4 ((uint32_t)0x04000000) /*!< SS[14:4] are don't care in Alarm
comparison. Only SS[3:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_5 ((uint32_t)0x05000000) /*!< SS[14:5] are don't care in Alarm
comparison. Only SS[4:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_6 ((uint32_t)0x06000000) /*!< SS[14:6] are don't care in Alarm
comparison. Only SS[5:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_7 ((uint32_t)0x07000000) /*!< SS[14:7] are don't care in Alarm
comparison. Only SS[6:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_8 ((uint32_t)0x08000000) /*!< SS[14:8] are don't care in Alarm
comparison. Only SS[7:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_9 ((uint32_t)0x09000000) /*!< SS[14:9] are don't care in Alarm
comparison. Only SS[8:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_10 ((uint32_t)0x0A000000) /*!< SS[14:10] are don't care in Alarm
comparison. Only SS[9:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_11 ((uint32_t)0x0B000000) /*!< SS[14:11] are don't care in Alarm
comparison. Only SS[10:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_12 ((uint32_t)0x0C000000) /*!< SS[14:12] are don't care in Alarm
comparison.Only SS[11:0] are compared */
#define RTC_AlarmSubSecondMask_SS14_13 ((uint32_t)0x0D000000) /*!< SS[14:13] are don't care in Alarm
comparison. Only SS[12:0] are compared */
#define RTC_AlarmSubSecondMask_SS14 ((uint32_t)0x0E000000) /*!< SS[14] is don't care in Alarm
comparison.Only SS[13:0] are compared */
#define RTC_AlarmSubSecondMask_None ((uint32_t)0x0F000000) /*!< SS[14:0] are compared and must match
to activate alarm. */
#define IS_RTC_ALARM_SUB_SECOND_MASK(MASK) (((MASK) == RTC_AlarmSubSecondMask_All) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_1) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_2) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_3) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_4) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_5) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_6) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_7) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_8) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_9) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_10) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_11) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_12) || \
((MASK) == RTC_AlarmSubSecondMask_SS14_13) || \
((MASK) == RTC_AlarmSubSecondMask_SS14) || \
((MASK) == RTC_AlarmSubSecondMask_None))
/**
* @}
*/
/** @defgroup RTC_Alarm_Sub_Seconds_Value
* @{
*/
#define IS_RTC_ALARM_SUB_SECOND_VALUE(VALUE) ((VALUE) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Wakeup_Timer_Definitions
* @{
*/
#define RTC_WakeUpClock_RTCCLK_Div16 ((uint32_t)0x00000000)
#define RTC_WakeUpClock_RTCCLK_Div8 ((uint32_t)0x00000001)
#define RTC_WakeUpClock_RTCCLK_Div4 ((uint32_t)0x00000002)
#define RTC_WakeUpClock_RTCCLK_Div2 ((uint32_t)0x00000003)
#define RTC_WakeUpClock_CK_SPRE_16bits ((uint32_t)0x00000004)
#define RTC_WakeUpClock_CK_SPRE_17bits ((uint32_t)0x00000006)
#define IS_RTC_WAKEUP_CLOCK(CLOCK) (((CLOCK) == RTC_WakeUpClock_RTCCLK_Div16) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div8) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div4) || \
((CLOCK) == RTC_WakeUpClock_RTCCLK_Div2) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_16bits) || \
((CLOCK) == RTC_WakeUpClock_CK_SPRE_17bits))
#define IS_RTC_WAKEUP_COUNTER(COUNTER) ((COUNTER) <= 0xFFFF)
/**
* @}
*/
/** @defgroup RTC_Time_Stamp_Edges_definitions
* @{
*/
#define RTC_TimeStampEdge_Rising ((uint32_t)0x00000000)
#define RTC_TimeStampEdge_Falling ((uint32_t)0x00000008)
#define IS_RTC_TIMESTAMP_EDGE(EDGE) (((EDGE) == RTC_TimeStampEdge_Rising) || \
((EDGE) == RTC_TimeStampEdge_Falling))
/**
* @}
*/
/** @defgroup RTC_Output_selection_Definitions
* @{
*/
#define RTC_Output_Disable ((uint32_t)0x00000000)
#define RTC_Output_AlarmA ((uint32_t)0x00200000)
#define RTC_Output_AlarmB ((uint32_t)0x00400000)
#define RTC_Output_WakeUp ((uint32_t)0x00600000)
#define IS_RTC_OUTPUT(OUTPUT) (((OUTPUT) == RTC_Output_Disable) || \
((OUTPUT) == RTC_Output_AlarmA) || \
((OUTPUT) == RTC_Output_AlarmB) || \
((OUTPUT) == RTC_Output_WakeUp))
/**
* @}
*/
/** @defgroup RTC_Output_Polarity_Definitions
* @{
*/
#define RTC_OutputPolarity_High ((uint32_t)0x00000000)
#define RTC_OutputPolarity_Low ((uint32_t)0x00100000)
#define IS_RTC_OUTPUT_POL(POL) (((POL) == RTC_OutputPolarity_High) || \
((POL) == RTC_OutputPolarity_Low))
/**
* @}
*/
/** @defgroup RTC_Digital_Calibration_Definitions
* @{
*/
#define RTC_CalibSign_Positive ((uint32_t)0x00000000)
#define RTC_CalibSign_Negative ((uint32_t)0x00000080)
#define IS_RTC_CALIB_SIGN(SIGN) (((SIGN) == RTC_CalibSign_Positive) || \
((SIGN) == RTC_CalibSign_Negative))
#define IS_RTC_CALIB_VALUE(VALUE) ((VALUE) < 0x20)
/**
* @}
*/
/** @defgroup RTC_Calib_Output_selection_Definitions
* @{
*/
#define RTC_CalibOutput_512Hz ((uint32_t)0x00000000)
#define RTC_CalibOutput_1Hz ((uint32_t)0x00080000)
#define IS_RTC_CALIB_OUTPUT(OUTPUT) (((OUTPUT) == RTC_CalibOutput_512Hz) || \
((OUTPUT) == RTC_CalibOutput_1Hz))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_period_Definitions
* @{
*/
#define RTC_SmoothCalibPeriod_32sec ((uint32_t)0x00000000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 32s, else 2exp20 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_16sec ((uint32_t)0x00002000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 16s, else 2exp19 RTCCLK seconds */
#define RTC_SmoothCalibPeriod_8sec ((uint32_t)0x00004000) /*!< if RTCCLK = 32768 Hz, Smooth calibation
period is 8s, else 2exp18 RTCCLK seconds */
#define IS_RTC_SMOOTH_CALIB_PERIOD(PERIOD) (((PERIOD) == RTC_SmoothCalibPeriod_32sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_16sec) || \
((PERIOD) == RTC_SmoothCalibPeriod_8sec))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Plus_pulses_Definitions
* @{
*/
#define RTC_SmoothCalibPlusPulses_Set ((uint32_t)0x00008000) /*!< The number of RTCCLK pulses added
during a X -second window = Y - CALM[8:0].
with Y = 512, 256, 128 when X = 32, 16, 8 */
#define RTC_SmoothCalibPlusPulses_Reset ((uint32_t)0x00000000) /*!< The number of RTCCLK pulses subbstited
during a 32-second window = CALM[8:0]. */
#define IS_RTC_SMOOTH_CALIB_PLUS(PLUS) (((PLUS) == RTC_SmoothCalibPlusPulses_Set) || \
((PLUS) == RTC_SmoothCalibPlusPulses_Reset))
/**
* @}
*/
/** @defgroup RTC_Smooth_calib_Minus_pulses_Definitions
* @{
*/
#define IS_RTC_SMOOTH_CALIB_MINUS(VALUE) ((VALUE) <= 0x000001FF)
/**
* @}
*/
/** @defgroup RTC_DayLightSaving_Definitions
* @{
*/
#define RTC_DayLightSaving_SUB1H ((uint32_t)0x00020000)
#define RTC_DayLightSaving_ADD1H ((uint32_t)0x00010000)
#define IS_RTC_DAYLIGHT_SAVING(SAVE) (((SAVE) == RTC_DayLightSaving_SUB1H) || \
((SAVE) == RTC_DayLightSaving_ADD1H))
#define RTC_StoreOperation_Reset ((uint32_t)0x00000000)
#define RTC_StoreOperation_Set ((uint32_t)0x00040000)
#define IS_RTC_STORE_OPERATION(OPERATION) (((OPERATION) == RTC_StoreOperation_Reset) || \
((OPERATION) == RTC_StoreOperation_Set))
/**
* @}
*/
/** @defgroup RTC_Tamper_Trigger_Definitions
* @{
*/
#define RTC_TamperTrigger_RisingEdge ((uint32_t)0x00000000)
#define RTC_TamperTrigger_FallingEdge ((uint32_t)0x00000001)
#define RTC_TamperTrigger_LowLevel ((uint32_t)0x00000000)
#define RTC_TamperTrigger_HighLevel ((uint32_t)0x00000001)
#define IS_RTC_TAMPER_TRIGGER(TRIGGER) (((TRIGGER) == RTC_TamperTrigger_RisingEdge) || \
((TRIGGER) == RTC_TamperTrigger_FallingEdge) || \
((TRIGGER) == RTC_TamperTrigger_LowLevel) || \
((TRIGGER) == RTC_TamperTrigger_HighLevel))
/**
* @}
*/
/** @defgroup RTC_Tamper_Filter_Definitions
* @{
*/
#define RTC_TamperFilter_Disable ((uint32_t)0x00000000) /*!< Tamper filter is disabled */
#define RTC_TamperFilter_2Sample ((uint32_t)0x00000800) /*!< Tamper is activated after 2
consecutive samples at the active level */
#define RTC_TamperFilter_4Sample ((uint32_t)0x00001000) /*!< Tamper is activated after 4
consecutive samples at the active level */
#define RTC_TamperFilter_8Sample ((uint32_t)0x00001800) /*!< Tamper is activated after 8
consecutive samples at the active leve. */
#define IS_RTC_TAMPER_FILTER(FILTER) (((FILTER) == RTC_TamperFilter_Disable) || \
((FILTER) == RTC_TamperFilter_2Sample) || \
((FILTER) == RTC_TamperFilter_4Sample) || \
((FILTER) == RTC_TamperFilter_8Sample))
/**
* @}
*/
/** @defgroup RTC_Tamper_Sampling_Frequencies_Definitions
* @{
*/
#define RTC_TamperSamplingFreq_RTCCLK_Div32768 ((uint32_t)0x00000000) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 32768 */
#define RTC_TamperSamplingFreq_RTCCLK_Div16384 ((uint32_t)0x000000100) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 16384 */
#define RTC_TamperSamplingFreq_RTCCLK_Div8192 ((uint32_t)0x00000200) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 8192 */
#define RTC_TamperSamplingFreq_RTCCLK_Div4096 ((uint32_t)0x00000300) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 4096 */
#define RTC_TamperSamplingFreq_RTCCLK_Div2048 ((uint32_t)0x00000400) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 2048 */
#define RTC_TamperSamplingFreq_RTCCLK_Div1024 ((uint32_t)0x00000500) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 1024 */
#define RTC_TamperSamplingFreq_RTCCLK_Div512 ((uint32_t)0x00000600) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 512 */
#define RTC_TamperSamplingFreq_RTCCLK_Div256 ((uint32_t)0x00000700) /*!< Each of the tamper inputs are sampled
with a frequency = RTCCLK / 256 */
#define IS_RTC_TAMPER_SAMPLING_FREQ(FREQ) (((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div32768) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div16384) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div8192) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div4096) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div2048) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div1024) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div512) || \
((FREQ) ==RTC_TamperSamplingFreq_RTCCLK_Div256))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pin_Precharge_Duration_Definitions
* @{
*/
#define RTC_TamperPrechargeDuration_1RTCCLK ((uint32_t)0x00000000) /*!< Tamper pins are pre-charged before
sampling during 1 RTCCLK cycle */
#define RTC_TamperPrechargeDuration_2RTCCLK ((uint32_t)0x00002000) /*!< Tamper pins are pre-charged before
sampling during 2 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_4RTCCLK ((uint32_t)0x00004000) /*!< Tamper pins are pre-charged before
sampling during 4 RTCCLK cycles */
#define RTC_TamperPrechargeDuration_8RTCCLK ((uint32_t)0x00006000) /*!< Tamper pins are pre-charged before
sampling during 8 RTCCLK cycles */
#define IS_RTC_TAMPER_PRECHARGE_DURATION(DURATION) (((DURATION) == RTC_TamperPrechargeDuration_1RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_2RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_4RTCCLK) || \
((DURATION) == RTC_TamperPrechargeDuration_8RTCCLK))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pins_Definitions
* @{
*/
#define RTC_Tamper_1 RTC_TAFCR_TAMP1E
#define IS_RTC_TAMPER(TAMPER) (((TAMPER) == RTC_Tamper_1))
/**
* @}
*/
/** @defgroup RTC_Tamper_Pin_Selection
* @{
*/
#define RTC_TamperPin_PC13 ((uint32_t)0x00000000)
#define RTC_TamperPin_PI8 ((uint32_t)0x00010000)
#define IS_RTC_TAMPER_PIN(PIN) (((PIN) == RTC_TamperPin_PC13) || \
((PIN) == RTC_TamperPin_PI8))
/**
* @}
*/
/** @defgroup RTC_TimeStamp_Pin_Selection
* @{
*/
#define RTC_TimeStampPin_PC13 ((uint32_t)0x00000000)
#define RTC_TimeStampPin_PI8 ((uint32_t)0x00020000)
#define IS_RTC_TIMESTAMP_PIN(PIN) (((PIN) == RTC_TimeStampPin_PC13) || \
((PIN) == RTC_TimeStampPin_PI8))
/**
* @}
*/
/** @defgroup RTC_Output_Type_ALARM_OUT
* @{
*/
#define RTC_OutputType_OpenDrain ((uint32_t)0x00000000)
#define RTC_OutputType_PushPull ((uint32_t)0x00040000)
#define IS_RTC_OUTPUT_TYPE(TYPE) (((TYPE) == RTC_OutputType_OpenDrain) || \
((TYPE) == RTC_OutputType_PushPull))
/**
* @}
*/
/** @defgroup RTC_Add_1_Second_Parameter_Definitions
* @{
*/
#define RTC_ShiftAdd1S_Reset ((uint32_t)0x00000000)
#define RTC_ShiftAdd1S_Set ((uint32_t)0x80000000)
#define IS_RTC_SHIFT_ADD1S(SEL) (((SEL) == RTC_ShiftAdd1S_Reset) || \
((SEL) == RTC_ShiftAdd1S_Set))
/**
* @}
*/
/** @defgroup RTC_Substract_Fraction_Of_Second_Value
* @{
*/
#define IS_RTC_SHIFT_SUBFS(FS) ((FS) <= 0x00007FFF)
/**
* @}
*/
/** @defgroup RTC_Backup_Registers_Definitions
* @{
*/
#define RTC_BKP_DR0 ((uint32_t)0x00000000)
#define RTC_BKP_DR1 ((uint32_t)0x00000001)
#define RTC_BKP_DR2 ((uint32_t)0x00000002)
#define RTC_BKP_DR3 ((uint32_t)0x00000003)
#define RTC_BKP_DR4 ((uint32_t)0x00000004)
#define RTC_BKP_DR5 ((uint32_t)0x00000005)
#define RTC_BKP_DR6 ((uint32_t)0x00000006)
#define RTC_BKP_DR7 ((uint32_t)0x00000007)
#define RTC_BKP_DR8 ((uint32_t)0x00000008)
#define RTC_BKP_DR9 ((uint32_t)0x00000009)
#define RTC_BKP_DR10 ((uint32_t)0x0000000A)
#define RTC_BKP_DR11 ((uint32_t)0x0000000B)
#define RTC_BKP_DR12 ((uint32_t)0x0000000C)
#define RTC_BKP_DR13 ((uint32_t)0x0000000D)
#define RTC_BKP_DR14 ((uint32_t)0x0000000E)
#define RTC_BKP_DR15 ((uint32_t)0x0000000F)
#define RTC_BKP_DR16 ((uint32_t)0x00000010)
#define RTC_BKP_DR17 ((uint32_t)0x00000011)
#define RTC_BKP_DR18 ((uint32_t)0x00000012)
#define RTC_BKP_DR19 ((uint32_t)0x00000013)
#define IS_RTC_BKP(BKP) (((BKP) == RTC_BKP_DR0) || \
((BKP) == RTC_BKP_DR1) || \
((BKP) == RTC_BKP_DR2) || \
((BKP) == RTC_BKP_DR3) || \
((BKP) == RTC_BKP_DR4) || \
((BKP) == RTC_BKP_DR5) || \
((BKP) == RTC_BKP_DR6) || \
((BKP) == RTC_BKP_DR7) || \
((BKP) == RTC_BKP_DR8) || \
((BKP) == RTC_BKP_DR9) || \
((BKP) == RTC_BKP_DR10) || \
((BKP) == RTC_BKP_DR11) || \
((BKP) == RTC_BKP_DR12) || \
((BKP) == RTC_BKP_DR13) || \
((BKP) == RTC_BKP_DR14) || \
((BKP) == RTC_BKP_DR15) || \
((BKP) == RTC_BKP_DR16) || \
((BKP) == RTC_BKP_DR17) || \
((BKP) == RTC_BKP_DR18) || \
((BKP) == RTC_BKP_DR19))
/**
* @}
*/
/** @defgroup RTC_Input_parameter_format_definitions
* @{
*/
#define RTC_Format_BIN ((uint32_t)0x000000000)
#define RTC_Format_BCD ((uint32_t)0x000000001)
#define IS_RTC_FORMAT(FORMAT) (((FORMAT) == RTC_Format_BIN) || ((FORMAT) == RTC_Format_BCD))
/**
* @}
*/
/** @defgroup RTC_Flags_Definitions
* @{
*/
#define RTC_FLAG_RECALPF ((uint32_t)0x00010000)
#define RTC_FLAG_TAMP1F ((uint32_t)0x00002000)
#define RTC_FLAG_TSOVF ((uint32_t)0x00001000)
#define RTC_FLAG_TSF ((uint32_t)0x00000800)
#define RTC_FLAG_WUTF ((uint32_t)0x00000400)
#define RTC_FLAG_ALRBF ((uint32_t)0x00000200)
#define RTC_FLAG_ALRAF ((uint32_t)0x00000100)
#define RTC_FLAG_INITF ((uint32_t)0x00000040)
#define RTC_FLAG_RSF ((uint32_t)0x00000020)
#define RTC_FLAG_INITS ((uint32_t)0x00000010)
#define RTC_FLAG_SHPF ((uint32_t)0x00000008)
#define RTC_FLAG_WUTWF ((uint32_t)0x00000004)
#define RTC_FLAG_ALRBWF ((uint32_t)0x00000002)
#define RTC_FLAG_ALRAWF ((uint32_t)0x00000001)
#define IS_RTC_GET_FLAG(FLAG) (((FLAG) == RTC_FLAG_TSOVF) || ((FLAG) == RTC_FLAG_TSF) || \
((FLAG) == RTC_FLAG_WUTF) || ((FLAG) == RTC_FLAG_ALRBF) || \
((FLAG) == RTC_FLAG_ALRAF) || ((FLAG) == RTC_FLAG_INITF) || \
((FLAG) == RTC_FLAG_RSF) || ((FLAG) == RTC_FLAG_WUTWF) || \
((FLAG) == RTC_FLAG_ALRBWF) || ((FLAG) == RTC_FLAG_ALRAWF) || \
((FLAG) == RTC_FLAG_TAMP1F) || ((FLAG) == RTC_FLAG_RECALPF) || \
((FLAG) == RTC_FLAG_SHPF))
#define IS_RTC_CLEAR_FLAG(FLAG) (((FLAG) != (uint32_t)RESET) && (((FLAG) & 0xFFFF00DF) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Interrupts_Definitions
* @{
*/
#define RTC_IT_TS ((uint32_t)0x00008000)
#define RTC_IT_WUT ((uint32_t)0x00004000)
#define RTC_IT_ALRB ((uint32_t)0x00002000)
#define RTC_IT_ALRA ((uint32_t)0x00001000)
#define RTC_IT_TAMP ((uint32_t)0x00000004) /* Used only to Enable the Tamper Interrupt */
#define RTC_IT_TAMP1 ((uint32_t)0x00020000)
#define IS_RTC_CONFIG_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFF0FFB) == (uint32_t)RESET))
#define IS_RTC_GET_IT(IT) (((IT) == RTC_IT_TS) || ((IT) == RTC_IT_WUT) || \
((IT) == RTC_IT_ALRB) || ((IT) == RTC_IT_ALRA) || \
((IT) == RTC_IT_TAMP1))
#define IS_RTC_CLEAR_IT(IT) (((IT) != (uint32_t)RESET) && (((IT) & 0xFFFD0FFF) == (uint32_t)RESET))
/**
* @}
*/
/** @defgroup RTC_Legacy
* @{
*/
#define RTC_DigitalCalibConfig RTC_CoarseCalibConfig
#define RTC_DigitalCalibCmd RTC_CoarseCalibCmd
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/* Function used to set the RTC configuration to the default reset state *****/
ErrorStatus RTC_DeInit(void);
/* Initialization and Configuration functions *********************************/
ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct);
void RTC_StructInit(RTC_InitTypeDef* RTC_InitStruct);
void RTC_WriteProtectionCmd(FunctionalState NewState);
ErrorStatus RTC_EnterInitMode(void);
void RTC_ExitInitMode(void);
ErrorStatus RTC_WaitForSynchro(void);
ErrorStatus RTC_RefClockCmd(FunctionalState NewState);
void RTC_BypassShadowCmd(FunctionalState NewState);
/* Time and Date configuration functions **************************************/
ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct);
void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct);
uint32_t RTC_GetSubSecond(void);
ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct);
void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct);
/* Alarms (Alarm A and Alarm B) configuration functions **********************/
void RTC_SetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_AlarmStructInit(RTC_AlarmTypeDef* RTC_AlarmStruct);
void RTC_GetAlarm(uint32_t RTC_Format, uint32_t RTC_Alarm, RTC_AlarmTypeDef* RTC_AlarmStruct);
ErrorStatus RTC_AlarmCmd(uint32_t RTC_Alarm, FunctionalState NewState);
void RTC_AlarmSubSecondConfig(uint32_t RTC_Alarm, uint32_t RTC_AlarmSubSecondValue, uint32_t RTC_AlarmSubSecondMask);
uint32_t RTC_GetAlarmSubSecond(uint32_t RTC_Alarm);
/* WakeUp Timer configuration functions ***************************************/
void RTC_WakeUpClockConfig(uint32_t RTC_WakeUpClock);
void RTC_SetWakeUpCounter(uint32_t RTC_WakeUpCounter);
uint32_t RTC_GetWakeUpCounter(void);
ErrorStatus RTC_WakeUpCmd(FunctionalState NewState);
/* Daylight Saving configuration functions ************************************/
void RTC_DayLightSavingConfig(uint32_t RTC_DayLightSaving, uint32_t RTC_StoreOperation);
uint32_t RTC_GetStoreOperation(void);
/* Output pin Configuration function ******************************************/
void RTC_OutputConfig(uint32_t RTC_Output, uint32_t RTC_OutputPolarity);
/* Digital Calibration configuration functions *********************************/
ErrorStatus RTC_CoarseCalibConfig(uint32_t RTC_CalibSign, uint32_t Value);
ErrorStatus RTC_CoarseCalibCmd(FunctionalState NewState);
void RTC_CalibOutputCmd(FunctionalState NewState);
void RTC_CalibOutputConfig(uint32_t RTC_CalibOutput);
ErrorStatus RTC_SmoothCalibConfig(uint32_t RTC_SmoothCalibPeriod,
uint32_t RTC_SmoothCalibPlusPulses,
uint32_t RTC_SmouthCalibMinusPulsesValue);
/* TimeStamp configuration functions ******************************************/
void RTC_TimeStampCmd(uint32_t RTC_TimeStampEdge, FunctionalState NewState);
void RTC_GetTimeStamp(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_StampTimeStruct,
RTC_DateTypeDef* RTC_StampDateStruct);
uint32_t RTC_GetTimeStampSubSecond(void);
/* Tampers configuration functions ********************************************/
void RTC_TamperTriggerConfig(uint32_t RTC_Tamper, uint32_t RTC_TamperTrigger);
void RTC_TamperCmd(uint32_t RTC_Tamper, FunctionalState NewState);
void RTC_TamperFilterConfig(uint32_t RTC_TamperFilter);
void RTC_TamperSamplingFreqConfig(uint32_t RTC_TamperSamplingFreq);
void RTC_TamperPinsPrechargeDuration(uint32_t RTC_TamperPrechargeDuration);
void RTC_TimeStampOnTamperDetectionCmd(FunctionalState NewState);
void RTC_TamperPullUpCmd(FunctionalState NewState);
/* Backup Data Registers configuration functions ******************************/
void RTC_WriteBackupRegister(uint32_t RTC_BKP_DR, uint32_t Data);
uint32_t RTC_ReadBackupRegister(uint32_t RTC_BKP_DR);
/* RTC Tamper and TimeStamp Pins Selection and Output Type Config configuration
functions ******************************************************************/
void RTC_TamperPinSelection(uint32_t RTC_TamperPin);
void RTC_TimeStampPinSelection(uint32_t RTC_TimeStampPin);
void RTC_OutputTypeConfig(uint32_t RTC_OutputType);
/* RTC_Shift_control_synchonisation_functions *********************************/
ErrorStatus RTC_SynchroShiftConfig(uint32_t RTC_ShiftAdd1S, uint32_t RTC_ShiftSubFS);
/* Interrupts and flags management functions **********************************/
void RTC_ITConfig(uint32_t RTC_IT, FunctionalState NewState);
FlagStatus RTC_GetFlagStatus(uint32_t RTC_FLAG);
void RTC_ClearFlag(uint32_t RTC_FLAG);
ITStatus RTC_GetITStatus(uint32_t RTC_IT);
void RTC_ClearITPendingBit(uint32_t RTC_IT);
#ifdef __cplusplus
}
#endif
#endif /*__STM32F4xx_RTC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

63
stm/main.c
View File

@ -3,6 +3,7 @@
#include <stm32f4xx_rcc.h> #include <stm32f4xx_rcc.h>
#include <stm32f4xx_gpio.h> #include <stm32f4xx_gpio.h>
#include <stm32f4xx_tim.h> #include <stm32f4xx_tim.h>
#include <stm32f4xx_rtc.h>
#include <stm_misc.h> #include <stm_misc.h>
#include "std.h" #include "std.h"
@ -462,6 +463,66 @@ py_obj_t pyb_hid_send_report(py_obj_t arg) {
return py_const_none; return py_const_none;
} }
static void rtc_init(void) {
/* Enable the PWR clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
/* Allow access to RTC */
PWR_BackupAccessCmd(ENABLE);
/* 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);
/* ck_spre(1Hz) = RTCCLK(LSE) /(uwAsynchPrediv + 1)*(uwSynchPrediv + 1)*/
uint32_t uwSynchPrediv = 0xFF;
uint32_t uwAsynchPrediv = 0x7F;
/* Enable the RTC Clock */
RCC_RTCCLKCmd(ENABLE);
/* Wait for RTC APB registers synchronisation */
RTC_WaitForSynchro();
/* Configure the RTC data register and RTC prescaler */
RTC_InitTypeDef RTC_InitStructure;
RTC_InitStructure.RTC_AsynchPrediv = uwAsynchPrediv;
RTC_InitStructure.RTC_SynchPrediv = uwSynchPrediv;
RTC_InitStructure.RTC_HourFormat = RTC_HourFormat_24;
RTC_Init(&RTC_InitStructure);
// Set the date (BCD)
RTC_DateTypeDef RTC_DateStructure;
RTC_DateStructure.RTC_Year = 0x13;
RTC_DateStructure.RTC_Month = RTC_Month_October;
RTC_DateStructure.RTC_Date = 0x26;
RTC_DateStructure.RTC_WeekDay = RTC_Weekday_Saturday;
RTC_SetDate(RTC_Format_BCD, &RTC_DateStructure);
// Set the time (BCD)
RTC_TimeTypeDef RTC_TimeStructure;
RTC_TimeStructure.RTC_H12 = RTC_H12_AM;
RTC_TimeStructure.RTC_Hours = 0x01;
RTC_TimeStructure.RTC_Minutes = 0x53;
RTC_TimeStructure.RTC_Seconds = 0x00;
RTC_SetTime(RTC_Format_BCD, &RTC_TimeStructure);
// Indicator for the RTC configuration
//RTC_WriteBackupRegister(RTC_BKP_DR0, 0x32F2);
}
py_obj_t pyb_rtc_read(void) {
RTC_TimeTypeDef RTC_TimeStructure;
RTC_GetTime(RTC_Format_BIN, &RTC_TimeStructure);
printf("%02d:%02d:%02d\n", RTC_TimeStructure.RTC_Hours, RTC_TimeStructure.RTC_Minutes, RTC_TimeStructure.RTC_Seconds);
return py_const_none;
}
int main(void) { int main(void) {
// TODO disable JTAG // TODO disable JTAG
@ -489,6 +550,7 @@ int main(void) {
// basic sub-system init // basic sub-system init
sys_tick_init(); sys_tick_init();
led_init(); led_init();
rtc_init();
// turn on LED to indicate bootup // turn on LED to indicate bootup
led_state(PYB_LED_G1, 1); led_state(PYB_LED_G1, 1);
@ -526,6 +588,7 @@ soft_reset:
rt_store_attr(m, qstr_from_str_static("servo"), rt_make_function_1(pyb_servo_set)); rt_store_attr(m, qstr_from_str_static("servo"), rt_make_function_1(pyb_servo_set));
rt_store_attr(m, qstr_from_str_static("mma"), rt_make_function_0(pyb_mma_read)); rt_store_attr(m, qstr_from_str_static("mma"), rt_make_function_0(pyb_mma_read));
rt_store_attr(m, qstr_from_str_static("hid"), rt_make_function_1(pyb_hid_send_report)); rt_store_attr(m, qstr_from_str_static("hid"), rt_make_function_1(pyb_hid_send_report));
rt_store_attr(m, qstr_from_str_static("time"), rt_make_function_0(pyb_rtc_read));
rt_store_name(qstr_from_str_static("pyb"), m); rt_store_name(qstr_from_str_static("pyb"), m);
} }