New Micros NMIY-0031, Руководство пользователя

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2 / 2 6 / 2 0 0 2 2 : 0 6 P M 2 / 2 6 / 2 0 0 2 4 3
N M I Y - 0 0 3 1 P R O G R A M S E G M E N T S
C
The example segment for C does the same function as the
BASIC
example above. First the key-
pad is read until a key press is detected. The key press coordinates are determined and then
output to the LCD.
#include ..\clib\common51.c
#include ..\clib\syslib51.c
#include ..\clib\stdio.h
#include ..\clib\alloc.c
#include ..\clib\peekpoke.c
#include ..\clib\getchar.c
#include ..\clib\fgetc.c
main ()
{
char *ch1;
int coldata,
row, col;
_lcdinit();
_lcdbusy();
while (EOF)
{
coldata = 1;
col = 0;
row = 0;
for (col = 1; col < 6; col++) /* scan columns */
{
_kpad_put(coldata ^ 0xFF); /* output column bit */
if (row = _kpad_get(ch1)) /* check for key press */
{
while
(row == _kpad_get(ch1)); /* de-bounce key press */
_lcdhome();
_dispdata(row, col); /* display key press */
}
else
coldata = coldata << 1;
} /* end for */
} /* end while */
} /* end main */
_dispdata(row, col) /* output data to lcd */
int row, col;
{
if ( row == 0x0004)
row = 3;
else if ( row == 0x0008)
row = 4;
lcdput(row+0x0030);
lcdput(',');
lcdput(col+0x0030);
lcdput(' ');
}