efc.c File Reference

#include "chip.h"
#include <assert.h>

Macros
#define	EEFC_FCR_FCMD(value)

Functions
void	EFC_WriteFMR (Efc *efc, uint32_t dwFmr)
	__attribute__ ((section(".ramfunc")))
void	EFC_EnableFrdyIt (Efc *efc)
	Enables the flash ready interrupt source on the EEFC peripheral.
void	EFC_DisableFrdyIt (Efc *efc)
	Disables the flash ready interrupt source on the EEFC peripheral.
void	EFC_SetWaitState (Efc *efc, uint8_t ucCycles)
	Set read/write wait state on the EEFC peripheral.
uint32_t	EFC_GetStatus (Efc *efc)
	Returns the current status of the EEFC.
uint32_t	EFC_GetResult (Efc *efc)
	Returns the result of the last executed command.
void	EFC_TranslateAddress (Efc **ppEfc, uint32_t dwAddress, uint16_t *pwPage, uint16_t *pwOffset)
	Translates the given address page and offset values.
void	EFC_ComputeAddress (Efc *efc, uint16_t wPage, uint16_t wOffset, uint32_t *pdwAddress)
	Computes the address of a flash access given the page and offset.
uint32_t	EFC_PerformCommand (Efc *efc, uint32_t dwCommand, uint32_t dwArgument, uint32_t dwUseIAP)
	Performs the given command and wait until its completion (or an error).
void	EFC_SetFlashAccessMode (Efc *efc, uint32_t dwMode)
	Set flash access mode.

Detailed Description

Implementation of Enhanced Embedded Flash Controller (EEFC).

Macro Definition Documentation

EEFC_FCR_FCMD

#define EEFC_FCR_FCMD

(

value

)

Value:

((EEFC_FCR_FCMD_Msk & ((value) << EEFC_FCR_FCMD_Pos)))

Function Documentation

EFC_ComputeAddress()

void EFC_ComputeAddress ( Efc * efc, uint16_t wPage, uint16_t wOffset, uint32_t * pdwAddress )

extern

Computes the address of a flash access given the page and offset.

Parameters

efc	Pointer to a Efc instance
page	Page number.
offset	Byte offset inside page.
pAddress	Computed address (optional).

EFC_DisableFrdyIt()

void EFC_DisableFrdyIt ( Efc * efc )

extern

Disables the flash ready interrupt source on the EEFC peripheral.

Parameters

efc	Pointer to a Efc instance

EFC_EnableFrdyIt()

void EFC_EnableFrdyIt ( Efc * efc )

extern

Enables the flash ready interrupt source on the EEFC peripheral.

Parameters

efc	Pointer to a Efc instance

EFC_GetResult()

uint32_t EFC_GetResult ( Efc * efc )

extern

Returns the result of the last executed command.

Parameters

efc	Pointer to a Efc instance

EFC_GetStatus()

uint32_t EFC_GetStatus ( Efc * efc )

extern

Returns the current status of the EEFC.

Note

Keep in mind that this function clears the value of some status bits (LOCKE, PROGE).

Parameters

efc	Pointer to a Efc instance

EFC_PerformCommand()

uint32_t EFC_PerformCommand ( Efc * efc, uint32_t dwCommand, uint32_t dwArgument, uint32_t dwUseIAP )

extern

Performs the given command and wait until its completion (or an error).

Parameters

efc	Pointer to a Efc instance
command	Command to perform.
argument	Optional command argument.

Returns

0 if successful, otherwise returns an error code.

EFC_SetFlashAccessMode()

void EFC_SetFlashAccessMode ( Efc * efc, uint32_t dwMode )

extern

Set flash access mode.

Parameters

dwMode

- 0:128-bit, (1<<24):64-bit

EFC_SetWaitState()

void EFC_SetWaitState ( Efc * efc, uint8_t ucCycles )

extern

Set read/write wait state on the EEFC peripheral.

Parameters

efc	Pointer to a Efc instance
cycles	the number of wait states in cycle.

EFC_TranslateAddress()

void EFC_TranslateAddress ( Efc ** ppEfc, uint32_t dwAddress, uint16_t * pwPage, uint16_t * pwOffset )

extern

Translates the given address page and offset values.

Note

The resulting values are stored in the provided variables if they are not null.

Parameters

efc	Pointer to a Efc instance
address	Address to translate.
pPage	First page accessed.
pOffset	Byte offset in first page.