flash.h

Flash support.

Types

struct flash_reg_map

Flash register map type.

Public Members

__io uint32 ACR

Access control register.

__io uint32 KEYR

Key register.

__io uint32 OPTKEYR

OPTKEY register.

__io uint32 SR

Status register.

__io uint32 CR

Control register.

__io uint32 AR

Address register.

__io uint32 OBR

Option byte register.

__io uint32 WRPR

Write protection register.

Functions

void flash_enable_prefetch(void)

Turn on the hardware prefetcher.

void flash_set_latency(uint32 wait_states)

Set flash wait states.

See ST PM0042, section 3.1 for restrictions on the acceptable value of wait_states for a given SYSCLK configuration.

Parameters:

• wait_states -

  number of wait states (one of FLASH_WAIT_STATE_0, FLASH_WAIT_STATE_1, FLASH_WAIT_STATE_2).

Register Map Base Pointers

FLASH_BASE

Flash register map base pointer.

Register Bit Definitions

Access control register

FLASH_ACR_PRFTBS_BIT

FLASH_ACR_PRFTBE_BIT

FLASH_ACR_HLFCYA_BIT

FLASH_ACR_PRFTBS

FLASH_ACR_PRFTBE

FLASH_ACR_HLFCYA

FLASH_ACR_LATENCY

Status register

FLASH_SR_EOP_BIT

FLASH_SR_WRPRTERR_BIT

FLASH_SR_PGERR_BIT

FLASH_SR_BSY_BIT

FLASH_SR_EOP

FLASH_SR_WRPRTERR

FLASH_SR_PGERR

FLASH_SR_BSY

Control register

FLASH_CR_EOPIE_BIT

FLASH_CR_ERRIE_BIT

FLASH_CR_OPTWRE_BIT

FLASH_CR_LOCK_BIT

FLASH_CR_STRT_BIT

FLASH_CR_OPTER_BIT

FLASH_CR_OPTPG_BIT

FLASH_CR_MER_BIT

FLASH_CR_PER_BIT

FLASH_CR_PG_BIT

FLASH_CR_EOPIE

FLASH_CR_ERRIE

FLASH_CR_OPTWRE

FLASH_CR_LOCK

FLASH_CR_STRT

FLASH_CR_OPTER

FLASH_CR_OPTPG

FLASH_CR_MER

FLASH_CR_PER

FLASH_CR_PG

Option byte register

FLASH_OBR_nRST_STDBY_BIT

FLASH_OBR_nRST_STOP_BIT

FLASH_OBR_WDG_SW_BIT

FLASH_OBR_RDPRT_BIT

FLASH_OBR_OPTERR_BIT

FLASH_OBR_DATA1

FLASH_OBR_DATA0

FLASH_OBR_USER

FLASH_OBR_nRST_STDBY

FLASH_OBR_nRST_STOP

FLASH_OBR_WDG_SW

FLASH_OBR_RDPRT

FLASH_OBR_OPTERR