bkp.h

[Stub] support.

Library Documentation

Backup register support.

Defines

BKP_NR_DATA_REGS

BKP_BASE

Backup peripheral register map base pointer.

Functions

void bkp_init(void )

Initialize backup interface.

Enables the power and backup interface clocks, and resets the backup device.

void bkp_enable_writes(void )

Enable write access to the backup registers.

Backup interface must be initialized for subsequent register writes to work.

See:bkp_init()

void bkp_disable_writes(void )

Disable write access to the backup registers.

uint16 bkp_read(uint8 reg)

Read a value from given backup data register.

Parameters:

• reg -

  Data register to read, from 1 to BKP_NR_DATA_REGS (10 on medium-density devices, 42 on high-density devices).

void bkp_write(uint8 reg, uint16 val)

Write a value to given data register.

Write access to backup registers must be enabled.

Parameters:

• reg -

  Data register to write, from 1 to BKP_NR_DATA_REGS (10 on medium-density devices, 42 on high-density devices).

• val -

  Value to write into the register.

See:

bkp_enable_writes()

Variables

const bkp_dev * BKP

Backup device.

class bkp_reg_map

Backup peripheral register map type.

Public Members

const uint32 RESERVED1

Reserved.

__io uint32 DR1

Data register 1.

__io uint32 DR2

Data register 2.

__io uint32 DR3

Data register 3.

__io uint32 DR4

Data register 4.

__io uint32 DR5

Data register 5.

__io uint32 DR6

Data register 6.

__io uint32 DR7

Data register 7.

__io uint32 DR8

Data register 8.

__io uint32 DR9

Data register 9.

__io uint32 DR10

Data register 10.

__io uint32 RTCCR

RTC control register.

__io uint32 CR

Control register.

__io uint32 CSR

Control and status register.

class bkp_dev

Backup peripheral device type.

Public Members

bkp_reg_map * regs

Register map.