efc.c File Reference

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

Macros
#define	EEFC_FCR_FCMD(value)   ((EEFC_FCR_FCMD_Msk & ((value) << EEFC_FCR_FCMD_Pos)))

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. More...
void	EFC_DisableFrdyIt (Efc *efc)
	Disables the flash ready interrupt source on the EEFC peripheral. More...
void	EFC_SetWaitState (Efc *efc, uint8_t ucCycles)
	Set read/write wait state on the EEFC peripheral. More...
uint32_t	EFC_GetStatus (Efc *efc)
	Returns the current status of the EEFC. More...
uint32_t	EFC_GetResult (Efc *efc)
	Returns the result of the last executed command. More...
void	EFC_TranslateAddress (Efc **ppEfc, uint32_t dwAddress, uint16_t *pwPage, uint16_t *pwOffset)
	Translates the given address page and offset values. More...
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. More...
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). More...
void	EFC_SetFlashAccessMode (Efc *efc, uint32_t dwMode)
	Set flash access mode. More...

Detailed Description

Implementation of Enhanced Embedded Flash Controller (EEFC).

Function Documentation

EFC_ComputeAddress()

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.

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

)

Disables the flash ready interrupt source on the EEFC peripheral.

Parameters

efc	Pointer to a Efc instance

EFC_EnableFrdyIt()

void EFC_EnableFrdyIt

(

Efc *

efc

)

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

)

Returns the result of the last executed command.

Parameters

efc	Pointer to a Efc instance

EFC_GetStatus()

uint32_t EFC_GetStatus

(

Efc *

efc

)

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
	)

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
	)

Set flash access mode.

Parameters

dwMode

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

EFC_SetWaitState()

void EFC_SetWaitState	(	Efc *	efc,
		uint8_t	ucCycles
	)

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
	)

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.