APPENDIX
//=====================================================================
//THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
//KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
//PURPOSE.
//===================================================================== #include <dos.h>
#include <conio.h> #include <stdio.h> #include <stdlib.h> #include "W627HF.H" //===================================================================== void ClrKbBuf(void);
int main (int argc, char *argv[]); //===================================================================== int main (int argc, char *argv[])
{
unsigned char ucDO = 0; | //data for digital output |
unsigned char ucDI; | //data for digital input |
unsigned char ucBuf; |
|
Set_W627HF_LD( 0x07); | //switch to logic device 7 |
Set_W627HF_Reg(0xF1, 0x00); | //clear |
ucDI = Get_W627HF_Reg(0xF1) & 0x0F; |
|
ClrKbBuf();
while(1)
{
ucDO++;
Set_W627HF_Reg(0xF1, ((ucDO & 0x0F) << 4)); ucBuf = Get_W627HF_Reg(0xF1) & 0x0F;
if (ucBuf != ucDI)
{
ucDI = ucBuf;
printf("Digital I/O Input Changed. Current Data is 0x%X\n",ucDI);
}
if (kbhit())
{
getch();
break;
}
delay(500);
}
return 0;
}
//===================================================================== void ClrKbBuf(void)
{
while(kbhit())
{ getch(); }
}
MB890 User’s Manual | 61 |
