目标:在0x0E区域写入0x20,在0x2E区域写入0x21,在0x4E区域写入0x22
先放效果图:
断电后,将写入程序删掉,再上电:
代码部分:
首先本代码依据赛元官方DEMO代码所作修改,官方地址:赛元芯片官方DEMO
main函数部分
#include "H/Function_Init.H"
#include "stdio.h"
/**************************************************************
说明:
1、Options for Target‘Target1’:BL51 Locate->Code Range:0x100,烧录选项请选择DISRST,复位脚作为普通IO使用;
2、改变TEST的定义,可以分别测试对应的功能;
3、注意:先在Function.H里面选择测试型号(SC92F7320无LCD/LED和PWM功能)
***************************************************************/
#define Test 5 //BTM:0 EXTI:1 Timer:2 LCD:3 PWM:4 Uart0:5 ADC:7 IAP:8
extern uchar IapReadData; //存放读取的IAP数据
void main(void)
{
IO_Init();
WDTCON |= 0x10; //清看门狗
Uart0_Init();
printf("Write Data:\r\n0x0E->0x20\r\n0x2E->0x21\r\n0x4E->0x22\r\n");
IAPWrite(0x0E,0x20,IapEPPROM);
IAPWrite(0x2E,0x21,IapEPPROM);
IAPWrite(0x4E,0x22,IapEPPROM);
printf("waiting...\r\n");
IapReadData = IAPRead(0x0E,IapEPPROM);
IAPADE = 0x00; //IAP指针指回ROM区
printf("Read 0x0E Data:%x\r\n",IapReadData);
IapReadData = IAPRead(0x2E,IapEPPROM);
IAPADE = 0x00; //IAP指针指回ROM区
printf("Read 0x2E Data:%x\r\n",IapReadData);
IapReadData = IAPRead(0x4E,IapEPPROM);
IAPADE = 0x00; //IAP指针指回ROM区
printf("Read 0x4E Data:%x\r\n",IapReadData);
switch(Test)
{
case 0: BTM_Test();
break;
case 1: EXTI_Test();
break;
case 2: Timer_Test();
break;
case 3: LCD_Test();
break;
case 4: PWM_Test();
break;
case 5: //Uart0_Test();
break;
case 7: ADC_Test();
break;
case 8: //IAP_Test(0x1fff,IapROM); //操作ROM,对地址0x1fff进行读写测试
//IAP_Test(0x7f,IapEPPROM); //操作EPPROM,对地址0x7f进行读写测试
break;
default:
break;
}
}
IAP_INIT部分:
#include "H/Function_Init.H"
//#define IapROM 0x00 //0x00:选择ROM区操作 0x02:选择EEPROM区操作
//#define IapEPPROM 0x02 //0x00:选择ROM区操作 0x02:选择EEPROM区操作
unsigned char code *IapAddr = 0x00;
void IAPWrite(uint Addr,uchar Value,uchar IAPArea);
uchar IAPRead(uint Addr,uchar IAPArea);
uchar IapReadData = 0x00; //存放读取的IAP数据
/*****************************************************
*函数名称:void IAP_Test(uchar Address,uchar IAPArea)
*函数功能:IAP测试
*入口参数:Address,IAPArea
*出口参数:void
*****************************************************/
void IAP_Test(uint Address,uchar IAPArea)
{
IAPWrite(Address,0xff,IAPArea);
IapReadData = IAPRead(Address,IAPArea);
IAPADE = 0x00; //IAP指针指回ROM区
while(1)
{
if(IapReadData == 0xff)
{
P20 = ~P20;
}
else
{
P21 = ~P21;
}
}
}
/*****************************************************
*函数名称:void IAPWrite(uchar Addr,uchar Value,uchar IAPArea)
*函数功能:IAP写初始化
*入口参数:Addr,Value,IAPArea
*出口参数:void
*****************************************************/
//IAP写操作
void IAPWrite(uint Addr,uchar Value,uchar IAPArea)
{
EA = 0;
IAPDAT = Value; //写入数据Data
IAPADH = ((Addr>>8)&0X7F); //写入地址的高5位
IAPADL = Addr; //写入地址的低8位
IAPADE = IAPArea; //IAPArea=0x00:选择ROM区操作 IAPArea=0x02:选择EEPROM区操作
IAPKEY = 240; //IAP开启保护控制时间
IAPCTL = 0x06; //CPU hold time为2ms,写入操作命令
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
IAPADE = 0x00; //MOVC指向ROM
EA = 1;
}
/*****************************************************
*函数名称:uchar IAPRead(uchar Addr,uchar IAPArea)
*函数功能:IAP读初始化
*入口参数:Addr,IAPArea
*出口参数:ReadValue
*****************************************************/
uchar IAPRead(uint Addr,uchar IAPArea)
{
uchar ReadValue = 0x00;
EA = 0;
IAPADE = IAPArea;
ReadValue = *(IapAddr+Addr); //读取的数据
IAPADE = 0x00; //MOVC指向ROM
EA = 1;
return ReadValue;
}
function_INIT部分:
#ifndef _Function_Init_H_
#define _Function_Init_H_
#include "SC92F732x_C.H"
#include "intrins.H"
#define uchar unsigned char
#define uint unsigned int
#define IapROM 0x00 //0x00:选择ROM区操作 0x02:选择EEPROM区操作
#define IapEPPROM 0x02 //0x00:选择ROM区操作 0x02:选择EEPROM区操作
extern void IO_Init(void);
extern void BTM_Test(void);
extern void EXTI_Test(void);
extern void Timer_Test(void);
extern void LCD_Test(void);
extern void PWM_Test(void);
extern void ADC_Test(void);
extern void IAP_Test(uint Address,uchar IAPArea);
void Uart0_Init(void);
void UartSendBit(unsigned char c);
void IAPWrite(uint Addr,uchar Value,uchar IAPArea);
uchar IAPRead(uint Addr,uchar IAPArea);
/*****************************************
说明:选择测试IC
*****************************************/
#define SC92F7323 0
#define SC92F7322 1
#define SC92F7321 2
#define SC92F7320 3
#define IC_MODEL SC92F7321
#endif