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chore(MCU课设): 精简代码，增加EEPROM操作函数

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This commit is contained in:
iridiumR 2022-06-07 13:35:25 +08:00
parent 3e5ae0de2d
commit cc9a66ef00
5 changed files with 168 additions and 26 deletions
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40
MCU/MCU_REAL _FINAL/MCU_1.uvopt
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@ -281,6 +281,18 @@
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10
MCU/MCU_REAL _FINAL/MCU_1.uvproj
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@ -406,6 +406,11 @@
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@ -451,6 +456,11 @@
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88
MCU/MCU_REAL _FINAL/eeprom.c Normal file
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@ -0,0 +1,88 @@
/*------------------------------------------------------------------*/
/* --- STC MCU Limited ---------------------------------------------*/
/* --- STC89-90xx Series MCU ISP/IAP/EEPROM Demo -------------------*/
/* --- Mobile: (86)13922805190 -------------------------------------*/
/* --- Fax: 86-0513-55012956,55012947,55012969 ---------------------*/
/* --- Tel: 86-0513-55012928,55012929,55012966----------------------*/
/* --- Web: www.STCMCU.com -----------------------------------------*/
/* --- Web: www.GXWMCU.com -----------------------------------------*/
/* If you want to use the program or the program referenced in the */
/* article, please specify in which data and procedures from STC */
/*------------------------------------------------------------------*/
#include "reg51.h"
#include "intrins.h"
#include "eeprom.h"
/*----------------------------
Disable ISP/IAP/EEPROM function
Make MCU in a safe state
----------------------------*/
void IapIdle()
{
IAP_CONTR = 0; //Close IAP function
IAP_CMD = 0; //Clear command to standby
IAP_TRIG = 0; //Clear trigger register
IAP_ADDRH = 0x80; //Data ptr point to non-EEPROM area
IAP_ADDRL = 0; //Clear IAP address to prevent misuse
}
/*----------------------------
Read one byte from ISP/IAP/EEPROM area
Input: addr (ISP/IAP/EEPROM address)
Output:Flash data
----------------------------*/
BYTE IapReadByte(WORD addr)
{
BYTE dat; //Data buffer
IAP_CONTR = ENABLE_IAP; //Open IAP function, and set wait time
IAP_CMD = CMD_READ; //Set ISP/IAP/EEPROM READ command
IAP_ADDRL = addr; //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8; //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x46; //Send trigger command1 (0x46)
IAP_TRIG = 0xb9; //Send trigger command2 (0xb9)
_nop_(); //MCU will hold here until ISP/IAP/EEPROM operation complete
dat = IAP_DATA; //Read ISP/IAP/EEPROM data
IapIdle(); //Close ISP/IAP/EEPROM function
return dat; //Return Flash data
}
/*----------------------------
Program one byte to ISP/IAP/EEPROM area
Input: addr (ISP/IAP/EEPROM address)
dat (ISP/IAP/EEPROM data)
Output:-
----------------------------*/
void IapProgramByte(WORD addr, BYTE dat)
{
IAP_CONTR = ENABLE_IAP; //Open IAP function, and set wait time
IAP_CMD = CMD_PROGRAM; //Set ISP/IAP/EEPROM PROGRAM command
IAP_ADDRL = addr; //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8; //Set ISP/IAP/EEPROM address high
IAP_DATA = dat; //Write ISP/IAP/EEPROM data
IAP_TRIG = 0x46; //Send trigger command1 (0x46)
IAP_TRIG = 0xb9; //Send trigger command2 (0xb9)
_nop_(); //MCU will hold here until ISP/IAP/EEPROM operation complete
IapIdle();
}
/*----------------------------
Erase one sector area
Input: addr (ISP/IAP/EEPROM address)
Output:-
----------------------------*/
void IapEraseSector(WORD addr)
{
IAP_CONTR = ENABLE_IAP; //Open IAP function, and set wait time
IAP_CMD = CMD_ERASE; //Set ISP/IAP/EEPROM ERASE command
IAP_ADDRL = addr; //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8; //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x46; //Send trigger command1 (0x46)
IAP_TRIG = 0xb9; //Send trigger command2 (0xb9)
_nop_(); //MCU will hold here until ISP/IAP/EEPROM operation complete
IapIdle();
}

36
MCU/MCU_REAL _FINAL/eeprom.h Normal file
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@ -0,0 +1,36 @@
#ifndef _EEPROM_H_
#define _EEPROM_H_
/*Declare SFR associated with the IAP */
sfr IAP_DATA = 0xE2; //Flash寄存器
sfr IAP_ADDRH = 0xE3; //Flash 高地址
sfr IAP_ADDRL = 0xE4; //Flash 低地址
sfr IAP_CMD = 0xE5; //Flash 命令寄存器
sfr IAP_TRIG = 0xE6; //Flash 控制触发器
sfr IAP_CONTR = 0xE7; //Flash 控制寄存器
/*Define ISP/IAP/EEPROM command*/
#define CMD_IDLE 0 //空闲
#define CMD_READ 1 //读
#define CMD_PROGRAM 2 //写
#define CMD_ERASE 3 //擦除
/*Define ISP/IAP/EEPROM operation const for IAP_CONTR*/
//#define ENABLE_IAP 0x80 //if SYSCLK<40MHz
#define ENABLE_IAP 0x81 //if SYSCLK<20MHz
//#define ENABLE_IAP x82 //if SYSCLK<10MHz
//#define ENABLE_IAP 0x83 //if SYSCLK<5MHz
//Start address for STC89C58xx EEPROM
#define IAP_ADDRESS 0x08000
typedef unsigned char BYTE;
typedef unsigned int WORD;
void Delay(BYTE n);
void IapIdle();
BYTE IapReadByte(WORD addr);
void IapProgramByte(WORD addr, BYTE dat);
void IapEraseSector(WORD addr);
#endif

20
MCU/MCU_REAL _FINAL/main.c
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@ -6,26 +6,10 @@ unsigned char TH, TL;
extern Menu *NOW; //菜单指针
extern enum OPR opr; //按键状态
unsigned char freshScreenTriger = 0;
void int0() interrupt 0 //外部中断：检测左右旋钮
{
// IE0 = 0; //Ïû¶¶
// delay(20);
// IE0 = 0;
//
// if(PIN_3 == 0)
// {
// delay(10);
// if(PIN_3 == 0)
// opr = left;
// }
// else if(PIN_3 == 1)
// {
// delay(10);
// if(PIN_3 == 1)
// opr = right;
// }
unsigned char LS, CS, flag = 0;
LS = PIN_3;
while(!PIN_1)
@ -81,7 +65,7 @@ int main()
displayInit(); //屏幕初始化
clear();
menuInit(); //菜单及其他初始化
while(1)
{