/*---------------------------------------------------------------------------------------------------------*/
/* */
/* Copyright(c) 2016 Nuvoton Technology Corp. All rights reserved. */
/* */
/*---------------------------------------------------------------------------------------------------------*/
//***********************************************************************************************************
// Nuvoton Technoledge Corp.
// Website: http://www.nuvoton.com
// E-Mail : MicroC-8bit@nuvoton.com
// Date : Apr/21/2016
//***********************************************************************************************************
//***********************************************************************************************************
// File Function: N76E003 APROM program DATAFLASH as EEPROM way
//***********************************************************************************************************
#include "N76E003.h"
#include "Common.h"
#include "Delay.h"
#include "SFR_Macro.h"
#include "Function_define.h"
#define ADDR_BASE 0x4700
#define FLASH_L_LOW ADDR_BASE+1
#define FLASH_L_HIGH ADDR_BASE+2
#define FLASH_H_LOW ADDR_BASE+3
#define FLASH_H_HIGH ADDR_BASE+4
/*****************************************************************************************************************
write_DATAFLASH_BYTE :
user can copy all this subroutine into project, then call this function in main.
******************************************************************************************************************/
void write_DATAFLASH_BYTE(UINT16 u16_addr,UINT8 u8_data)
{
UINT8 looptmp=0,u8_addrl_r;
unsigned char code *cd_longaddr;
unsigned char xdata *xd_tmp;
//Check page start address
u8_addrl_r = u16_addr;
if (u8_addrl_r<0x80)
{
u8_addrl_r = 0;
}
else
{
u8_addrl_r = 0x80;
}
//Save APROM data to XRAM
xd_tmp = 0x280;
cd_longaddr = (u16_addr&0xff00)+u8_addrl_r;
while (xd_tmp !=0x300)
{
*xd_tmp = *cd_longaddr;
looptmp++;
xd_tmp++;
cd_longaddr++;
}
// Modify customer data in XRAM
u8_addrl_r = u16_addr;
if (u8_addrl_r<0x80)
{
xd_tmp = u8_addrl_r+0x280;
}
else
{
xd_tmp = u8_addrl_r+0x200;
}
*xd_tmp = u8_data;
//Erase APROM DATAFLASH page
IAPAL = u16_addr;
IAPAH = u16_addr>>8;
IAPFD = 0xFF;
set_IAPEN;
set_APUEN;
IAPCN = 0x22;
set_IAPGO;
//Save changed RAM data to APROM DATAFLASH
u8_addrl_r = u16_addr;
if (u8_addrl_r<0x80)
{
u8_addrl_r =0;
}
else
{
u8_addrl_r = 0x80;
}
xd_tmp = 0x280;
IAPAL = u8_addrl_r;
IAPAH = u16_addr>>8;
set_IAPEN;
set_APUEN;
IAPCN = 0x21;
while (xd_tmp !=0x2FF)
{
IAPFD = *xd_tmp;
set_IAPGO;
IAPAL++;
xd_tmp++;
}
clr_APUEN;
clr_IAPEN;
}
//-------------------------------------------------------------------------
UINT8 read_APROM_BYTE(UINT16 code *u16_addr)
{
UINT8 rdata;
rdata = *u16_addr>>8;
return rdata;
}
/******************************************************************************************************************/
void main (void)
{
UINT8 datatemp;
UINT16 system16highsite;
/* -------------------------------------------------------------------------*/
/* Dataflash use APROM area, please ALWAYS care the address of you code */
/* APROM 0x3800~0x38FF demo as dataflash */
/* Please use Memory window key in C:0x3800 to check earse result */
/* -------------------------------------------------------------------------*/
InitialUART0_Timer1(115200);
//call write byte
write_DATAFLASH_BYTE (0x3802,0x34);
write_DATAFLASH_BYTE (FLASH_L_LOW,0x55);
write_DATAFLASH_BYTE (FLASH_L_HIGH,0x56);
write_DATAFLASH_BYTE (FLASH_H_LOW,0xaa);
write_DATAFLASH_BYTE (FLASH_H_HIGH,0x66);
//call read byte
datatemp = read_APROM_BYTE(0x3802);
system16highsite = ((read_APROM_BYTE(FLASH_H_HIGH)<<8)+read_APROM_BYTE(FLASH_H_LOW));
while(1)
{
// printf ("\n data temp = 0x%bx", datatemp);
}
}
//-----------------------------------------------------------------------------------------------------------
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