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STM32H735xx HAL User Manual
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Peripherals control functions. More...
Functions | |
| HAL_StatusTypeDef | HAL_PWREx_EnableBkUpReg (void) |
| Enable the Backup Regulator. | |
| HAL_StatusTypeDef | HAL_PWREx_DisableBkUpReg (void) |
| Disable the Backup Regulator. | |
| HAL_StatusTypeDef | HAL_PWREx_EnableUSBReg (void) |
| Enable the USB Regulator. | |
| HAL_StatusTypeDef | HAL_PWREx_DisableUSBReg (void) |
| Disable the USB Regulator. | |
| void | HAL_PWREx_EnableUSBVoltageDetector (void) |
| Enable the USB voltage level detector. | |
| void | HAL_PWREx_DisableUSBVoltageDetector (void) |
| Disable the USB voltage level detector. | |
| void | HAL_PWREx_EnableBatteryCharging (uint32_t ResistorValue) |
| Enable the Battery charging. | |
| void | HAL_PWREx_DisableBatteryCharging (void) |
| Disable the Battery charging. | |
Peripherals control functions.
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##### Peripherals control functions #####
===============================================================================
*** Main and Backup Regulators configuration ***
================================================
[..]
(+) The backup domain includes 4 Kbytes of backup SRAM accessible only
from the CPU, and addressed 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
HAL_PWREx_EnableBkUpReg() function to enable the low power backup
regulator.
(+) 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 a 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
HAL_PWREx_ControlVoltageScaling(VOS) function which configure the VOS
bit in PWR_D3CR register.
(+) The main internal regulator can be configured to operate in Low Power
mode when the system enters STOP mode to further reduce power
consumption.
This is done through HAL_PWREx_ControlStopModeVoltageScaling(SVOS)
function which configure the SVOS bit in PWR_CR1 register.
The selected SVOS4 and SVOS5 levels add an additional startup delay
when exiting from system Stop mode.
-@- Refer to the product datasheets for more details.
*** USB Regulator configuration ***
===================================
[..]
(+) The USB transceivers are supplied from a dedicated VDD33USB supply
that can be provided either by the integrated USB regulator, or by an
external USB supply.
(+) The USB regulator is enabled by HAL_PWREx_EnableUSBReg() function, the
VDD33USB is then provided from the USB regulator.
(+) When the USB regulator is enabled, the VDD33USB supply level detector
shall be enabled through HAL_PWREx_EnableUSBVoltageDetector()
function.
(+) The USB regulator is disabled through HAL_PWREx_DisableUSBReg()
function and VDD33USB can be provided from an external supply. In this
case VDD33USB and VDD50USB shall be connected together.
*** VBAT battery charging ***
=============================
[..]
(+) When VDD is present, the external battery connected to VBAT can be
charged through an internal resistance. VBAT charging can be performed
either through a 5 KOhm resistor or through a 1.5 KOhm resistor.
(+) VBAT charging is enabled by HAL_PWREx_EnableBatteryCharging
(ResistorValue) function with:
(++) ResistorValue:
(+++) PWR_BATTERY_CHARGING_RESISTOR_5: 5 KOhm resistor.
(+++) PWR_BATTERY_CHARGING_RESISTOR_1_5: 1.5 KOhm resistor.
(+) VBAT charging is disabled by HAL_PWREx_DisableBatteryCharging()
function.
| void HAL_PWREx_DisableBatteryCharging | ( | void | ) |
Disable the Battery charging.
| None. |
Definition at line 1771 of file stm32h7xx_hal_pwr_ex.c.
| HAL_StatusTypeDef HAL_PWREx_DisableBkUpReg | ( | void | ) |
Disable the Backup Regulator.
| HAL | status. |
Definition at line 1651 of file stm32h7xx_hal_pwr_ex.c.
References __HAL_PWR_GET_FLAG, HAL_GetTick(), PWR_FLAG_BRR, and PWR_FLAG_SETTING_DELAY.
| HAL_StatusTypeDef HAL_PWREx_DisableUSBReg | ( | void | ) |
Disable the USB Regulator.
| HAL | status. |
Definition at line 1703 of file stm32h7xx_hal_pwr_ex.c.
References __HAL_PWR_GET_FLAG, HAL_GetTick(), PWR_FLAG_SETTING_DELAY, and PWR_FLAG_USB33RDY.
| void HAL_PWREx_DisableUSBVoltageDetector | ( | void | ) |
Disable the USB voltage level detector.
| None. |
Definition at line 1739 of file stm32h7xx_hal_pwr_ex.c.
| void HAL_PWREx_EnableBatteryCharging | ( | uint32_t | ResistorValue | ) |
Enable the Battery charging.
| ResistorValue | : Specifies the charging resistor. This parameter can be one of the following values :
|
| None. |
Definition at line 1755 of file stm32h7xx_hal_pwr_ex.c.
References assert_param, and IS_PWR_BATTERY_RESISTOR_SELECT.
| HAL_StatusTypeDef HAL_PWREx_EnableBkUpReg | ( | void | ) |
Enable the Backup Regulator.
| HAL | status. |
Definition at line 1625 of file stm32h7xx_hal_pwr_ex.c.
References __HAL_PWR_GET_FLAG, HAL_GetTick(), PWR_FLAG_BRR, and PWR_FLAG_SETTING_DELAY.
| HAL_StatusTypeDef HAL_PWREx_EnableUSBReg | ( | void | ) |
Enable the USB Regulator.
| HAL | status. |
Definition at line 1677 of file stm32h7xx_hal_pwr_ex.c.
References __HAL_PWR_GET_FLAG, HAL_GetTick(), PWR_FLAG_SETTING_DELAY, and PWR_FLAG_USB33RDY.
| void HAL_PWREx_EnableUSBVoltageDetector | ( | void | ) |
Enable the USB voltage level detector.
| None. |
Definition at line 1729 of file stm32h7xx_hal_pwr_ex.c.
1.7.6.1