common/pic24_flash.c File Reference

#include "pic24_all.h"
#include <stdio.h>

Go to the source code of this file.

Functions
void	doWriteLatchFlash (uint16 u16_addrhi, uint16 u16_addrlo, uint16 u16_wordhi, uint16 u16_wordlo)
uint32	doReadLatchFlash (uint16 u16_addrhi, uint16 u16_addrlo)
void	doErasePageFlash (uint16 u16_addrhi, uint16 u16_addrlo)
void	doWriteRowFlash ()
void	doWritePageFlash (union32 u32_pmemAddress, uint8 *pu8_data, uint16 u16_len)
void	doReadPageFlash (union32 u32_pmemAddress, uint8 *pu8_data, uint16 u16_len)

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Detailed Description

FLASH memory read/write support functions. Thanks goes to David Weaver for suggestions on improving these functions.

Definition in file pic24_flash.c.

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Function Documentation

void doErasePageFlash	(	uint16	u16_addrhi,
		uint16	u16_addrlo
	)

Erases a flash page at u16_addrhi:u16_addrlo flash address

Parameters:

	u16_addrhi	upper word of flash memory address
	u16_addrlo	lower word of flash memory address

Definition at line 74 of file pic24_flash.c.

uint32 doReadLatchFlash	(	uint16	u16_addrhi,
		uint16	u16_addrlo
	)

Read table latch from address u16_addrhi:u16_addrlo

Parameters:

	u16_addrhi	upper word of flash memory address
	u16_addrlo	lower word of flash memory address

Returns:

24-bit data value returned in uint32 type

Definition at line 60 of file pic24_flash.c.

void doReadPageFlash	(	union32	u32_pmemAddress,
		uint8 *	pu8_data,
		uint16	u16_len
	)

Reads a flash page at u32_pmemAddress, returns u16_len bytes in buffer pu8_data

Parameters:

	u32_pmemAddress	flash memory address, should be on a page boundary
	pu8_data	pointer to byte data to write
	u16_len	number of bytes to read

Definition at line 162 of file pic24_flash.c.

void doWriteLatchFlash	(	uint16	u16_addrhi,
		uint16	u16_addrlo,
		uint16	u16_wordhi,
		uint16	u16_wordlo
	)

Write table latch with address u16_addrhi:u16_addrlo, data: u16_wordhi:u16_wordlo

Parameters:

	u16_addrhi	upper word of flash memory address
	u16_addrlo	lower word of flash memory address
	u16_wordhi	upper data word (only lower 8-bits are valid, upper 8-bits should be zero)
	u16_wordlo	lower data word

Definition at line 47 of file pic24_flash.c.

void doWritePageFlash	(	union32	u32_pmemAddress,
		uint8 *	pu8_data,
		uint16	u16_len
	)

Erases a flash page at u32_pmemAddress, then writes u16_len bytes from pu8_data to program memory.

Parameters:

	u32_pmemAddress	flash memory address, should be on a page boundary
	pu8_data	pointer to byte data to write
	u16_len	number of bytes to write, this is rounded up nearest row boundary! (should be evenly divisible by 64*3)

Definition at line 129 of file pic24_flash.c.

void doWriteRowFlash

(

)

Write current flash row

Definition at line 103 of file pic24_flash.c.