ARM新手
Post By：2010-1-21 21:29:00 [只看該作者]
// EM9000ISATest.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "EM9000_ISA_API.h"
int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
SetPortDir( ISA_P4, 0 );
for( )
{
EM9000_OUTB( ISA_P4, 0 );
Sleep(1000 );
EM9000_OUTB( ISA_P4, 0xff );
Sleep( 1000 );
}
return 0;
}
請(qǐng)問程序里面的ISA_P4指的是什么？在EM9000_CN2為什么只有P4.0-P4.3,而在EM9000開發(fā)板的里卻沒有這幾個(gè)引腳呢？
//
#include "stdafx.h"
#include "EM9000_ISA_API.h"
int WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
SetPortDir( ISA_P4, 0 );
for( )
{
EM9000_OUTB( ISA_P4, 0 );
Sleep(1000 );
EM9000_OUTB( ISA_P4, 0xff );
Sleep( 1000 );
}
return 0;
}
請(qǐng)問程序里面的ISA_P4指的是什么？在EM9000_CN2為什么只有P4.0-P4.3,而在EM9000開發(fā)板的里卻沒有這幾個(gè)引腳呢？
