119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/**************************************************************************
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**************************************************************************/
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#include "Define_Global.h"
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/**************************************************************************
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* 函数名称：Delay_Xus
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* 函数功能：延时处理
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* 入口参数：x=延时时间
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* 出口参数：无
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* 备 注：死循环处理，注意调用
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**************************************************************************/
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void Delay_Xus(unsigned char x)
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{
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GIE = 0; //关闭中断
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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while(--x)
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{
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NOP();
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NOP();
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NOP();
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}
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GIE = 1; //恢复中断
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}
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/**************************************************************************
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* 函数名称：Delay_Xms
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* 函数功能：延时处理
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* 入口参数：x=延时时间
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* 出口参数：无
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* 备 注：死循环处理，注意调用
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**************************************************************************/
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void Delay_Xms(unsigned int x)
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{
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volatile unsigned int i = 728;
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GIE = 0; //关闭中断
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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while(--x)
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{
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while(--i);
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i = 728;
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CLRWDT(); //清看门狗
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}
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GIE = 1; //恢复中断
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}
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/***********************************************************************
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* 函数名称：Memory_Write
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* 函数功能：写入EE数据
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* 入口参数：addr=写入地址，value=写入数据
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* 出口参数：EE写操作完成状态
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* 备 注：无
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***********************************************************************/
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unsigned char Memory_Write(unsigned char addr, unsigned char value)
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{
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EEADR = addr; //写入地址
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EEDAT = value; //写入数据
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CLRWDT(); //清看门狗
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EECON1 = 0x10; //EE烧写时间 = 2.5ms
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EEPGD = 0; //访问数据存储器
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WREN = 1; //允许写周期
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GIE = 0; //关闭中断
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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GIE = 0; //确保中断已关闭
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EECON2 = 0x55; //给EECON2写入0x55
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EECON2 = 0xAA; //给EECON2写入0xAA
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WR = 1; //启动写周期
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NOP();
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NOP();
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NOP();
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NOP();
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CLRWDT(); //清看门狗
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WREN = 0; //写结束，关闭写入操作
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GIE = 1; //恢复中断
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if(WRERR)
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{
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return 0xFF; //EE写操作出错
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}
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else
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{
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return 0; //EE写操作OK
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}
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}
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/***********************************************************************
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* 函数名称：Memory_Read
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* 函数功能：读取EE数据
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* 入口参数：addr=读取地址
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* 出口参数：读取数据
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* 备 注：无
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***********************************************************************/
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unsigned char Memory_Read(unsigned char addr)
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{
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EEADR = addr; //读取地址
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EEPGD = 0; //访问数据存储器
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RD = 1; //使能读信号
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NOP(); //这里读取数据，必须加NOP指令
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NOP();
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NOP();
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NOP();
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NOP();
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return EEDAT; //读取数据
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}
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