133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
/*
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* IAP.c
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*
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* Created on: 2022年03月12日
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* Author: User
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*/
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/* Includes ------------------------------------------------------------------*/
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#include <main.h>
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uint8_t EEPROM_Array[4] = {0}; //保存温度的数组
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uint16_t Save_Value1;
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uint16_t Save_Value2;
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static uint8_t Flash_ReadData(uint16_t); //读一字节
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static void FLASH_WriteData(uint8_t, uint16_t); //写一字节(写之前需要先擦除)
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static void Flash_EraseBlock(uint16_t); //扇区擦除
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static void Get_TempValue(void); //恢复储存的温度
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static void Save_TempValue(void);
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static void Flash_ReadArr(unsigned int fui_Address, unsigned char fuc_Length, unsigned char *fucp_SaveArr);
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static void Flash_WriteArr(unsigned int fui_Address, unsigned char fuc_Length, unsigned char *fucp_SaveArr);
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/* Public variables-----------------------------------------------------------*/
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IAP_t xdata IAP =
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{
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EEPROM_Array,
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Save_TempValue,
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Get_TempValue};
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/*
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* @name Get_TempValue
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* @brief 获取温度的值
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* @param None
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* @retval None
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*/
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static void Get_TempValue(void)
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{
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Flash_ReadArr(EEPROM_Array_ADDR, 4, EEPROM_Array);
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Public.Setting_Temp1 = EEPROM_Array[0];
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Public.Setting_Temp1 <<= 8;
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Public.Setting_Temp1 |= EEPROM_Array[1];
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Public.Setting_Temp2 = EEPROM_Array[2];
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Public.Setting_Temp2 <<= 8;
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Public.Setting_Temp2 |= EEPROM_Array[3];
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Save_Value1 = Public.Setting_Temp1;
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Save_Value2 = Public.Setting_Temp2;
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}
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/*
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* @name Save_TempValue
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* @brief 保存温度的值
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* @param None
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* @retval None
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*/
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static void Save_TempValue(void)
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{
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if ((Save_Value1 != Public.Setting_Temp1) || (Save_Value2 != Public.Setting_Temp2))
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{
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IAP.EEPROM_Array[0] = (Public.Setting_Temp1 >> 8) & 0xFF;
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IAP.EEPROM_Array[1] = Public.Setting_Temp1 & 0xFF;
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IAP.EEPROM_Array[2] = (Public.Setting_Temp2 >> 8) & 0xFF;
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IAP.EEPROM_Array[3] = Public.Setting_Temp2 & 0xFF;
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Flash_EraseBlock(EEPROM_Array_ADDR);
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Flash_WriteArr(EEPROM_Array_ADDR, 4, EEPROM_Array);
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}
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}
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/*
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* @name FLASH_WriteData
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* @brief 写入一字节(写入之前需要先擦除)
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* @param None
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* @retval None
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*/
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static void FLASH_WriteData(uint8_t dat, uint16_t addr)
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{
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EA = 0; //关闭总中断
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INSCON = 0x80; //设置操作区域为EEPROM
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IAP_DATA = dat;
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IAP_CMD = 0xF00F; // Flash解锁
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IAP_ADDR = addr;
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IAP_CMD = 0xB44B; //字节编程
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IAP_CMD = 0xE11E; //触发一次操作 触发后自动锁定
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INSCON = 0x00; //关闭写EEPROM操作
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EA = 1;
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}
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/*
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* @name Flash_EraseBlock
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* @brief 扇区擦除(每扇区为32字节)
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* @param None
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* @retval None
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*/
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static void Flash_EraseBlock(uint16_t addr)
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{
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EA = 0; //关闭总中断
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INSCON = 0x80; //设置操作区域为EEPROM
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IAP_CMD = 0xF00F; // Flash解锁
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IAP_ADDR = addr; //写入擦除地址
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IAP_CMD = 0xD22D; //选择操作方式，扇区擦除
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IAP_CMD = 0xE11E; //触发后IAP_ADDRL&IAP_ADDRH指向0xFF,同时自动锁定
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INSCON = 0x00; //关闭EEPROM操作
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EA = 1;
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}
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/*
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* @name Flash_WriteArr
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* @brief 写入一个数组
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* @param address len savearray
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* @retval None
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*/
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static void Flash_WriteArr(unsigned int fui_Address, unsigned char fuc_Length, unsigned char *fucp_SaveArr)
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{
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unsigned char fui_i = 0;
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EA = 0;
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for (fui_i = 0; fui_i < fuc_Length; fui_i++)
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{
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FLASH_WriteData(*(fucp_SaveArr++), fui_Address++);
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}
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EA = 1;
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}
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/*
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* @name Flash_ReadArr
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* @brief 读出一个数组
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* @param address len savearray
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* @retval None
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*/
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static void Flash_ReadArr(unsigned int fui_Address, unsigned char fuc_Length, unsigned char *fucp_SaveArr)
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{
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INSCON = 0x80;
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while (fuc_Length--)
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*(fucp_SaveArr++) = *((unsigned char code *)(fui_Address++)); //读取数据
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}
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/********************************************************
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End Of File
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********************************************************/ |