Dmx512灯控制器程序

/*-------------------------------------*/
        // 写地址 A8 ( 93C66 )
        EE_Write_Code_Bit( ( unchar )( Address_Rg >> 1 ), 1 );
        // 写地址 A7 -- A0 ( 93C66 )
        EE_Write_Code_Bit( ( unchar )Address_Rg, 8 );
        // 读 1 个 Byte 资料
        Read_Data_Buf = EE_Read_Code_Bit();
        Eeprom_CS_Fg = 0;
        return Read_Data_Buf;
}
/*==================================================================================*/
// 功    能: EEPROM 抹除及写致能命令.
void Eeprom_Write_Enable( void )
{
        unchar i;
        EE_Write_Start_Bit();
        EE_Write_Code_Bit(0x30,4);
        EE_Write_Code_Bit(0x00,7);
        Eeprom_CS_Fg = 0;
        Eeprom_CK_Fg = 0;
        Eeprom_DI_Fg = 0;
        for( i = 0; i < Delay_Time; i ++ )
            ;
}
/*==================================================================================*/
void EE_Write_Code_Bit( unchar Code_Rg, unchar Bit_Count_Rg )
{
        unchar i;
        while( Bit_Count_Rg -- )
        {
                Eeprom_DI_Fg = ( Code_Rg & 0x80 ) ? 1 : 0;
                for( i = 0; i < Delay_Time; i ++ )
                        ;
                Eeprom_CK_Fg = 1;
                for( i = 0; i < Delay_Time; i ++ )
                        ;
                Eeprom_CK_Fg = 0;
                for( i = 0; i < Delay_Time; i ++ )
                        ;
                Code_Rg <<= 1;
        }
}
/*==================================================================================*/
// 功    能: 从 EEPROM 内部读取 1 Byte 的资料.
// 传回参数: 资料码.
unchar EE_Read_Code_Bit( void )
{
        unchar i;
        unchar m;
        unchar Data_Rg;
        Eeprom_DO_Fg = 1;
        Data_Rg = 0;
        for( i = 0; i < 8; i ++ )
        {
                Data_Rg <<= 1;
                Eeprom_CK_Fg = 1;
                for( m = 0; m < Delay_Time; m ++ )
                        ;
                Eeprom_CK_Fg = 0;
                for( m = 0; m < Delay_Time; m ++ )
                        ;
                if( Eeprom_DO_Fg )
                {
                        Data_Rg |= 0x01;
                }
        }
        return Data_Rg;
}
/*==================================================================================*/
// 功    能: 写起始位元到 EEPROM
void EE_Write_Start_Bit( void )
{
        unchar i;
        Eeprom_CS_Fg = 1;
        Eeprom_CK_Fg = 0;
        for( i = 0; i < Delay_Time; i ++ )
                ;
        Eeprom_DI_Fg = 0;
        for( i = 0; i < Delay_Time; i ++ )
                ;
        Eeprom_CK_Fg = 1;
        for( i = 0; i < Delay_Time; i ++ )
                ;
        Eeprom_CK_Fg = 0;

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本文关键字：控制器  程序  51单片机，单片机-工控设备 - 51单片机