數(shù)字電路中Multisim10單片機的應(yīng)用
2. 1 雙擊“設(shè)計工具盒”中的源文件“Led11. c”,在其右側(cè)將打開編寫程序窗口,刪除已有的文字注釋說明。
2. 2 在源程序窗口輸入以下11進制計數(shù)器C語言源程序:
#include htc. h
void delay( unsigned int i) ;
unsigned char code table [ ] = { 0x40, 0x79, 0x24, 0x30, 0x19, 0x12, 0x02,
0x78, 0x00, 0x90};
unsigned char a1, a2, a3;
void main ( )
{
unsigned int i;
while (1)
{ for( i = 0; i 11; i + + )
{
if ( i = = 0)
{P2 = 0x40;
P1 = 0x40;
P0 = 0x40; }
if ( i = = 1)
{P2 = 0x79;
P1 = 0x40;
P0 = 0x40; }
if ( i = = 2)
{P2 = 0x24;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 3)
{
P2 = 0x30;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 4)
{
P2 = 0x19;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 5)
{
P2 = 0x12;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 6)
{
P2 = 0x02;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 7)
{
P2 = 0x78;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 8)
{
P2 = 0x00;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 9)
{
P2 = 0x10;
P1 = 0x40;
P0 = 0x40;
}
if ( i = = 10)
{
P2 = 0x40;
P1 = 0x79;
P0 = 0x40;
i = 0;
}
}
} }
void delay( unsigned int i)
{
while ( i - - ) ;
}
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