ارجو المساعدة في تعديل كود ودارة لمس
الكود
كود:
/*------------------------------------------------*/
/* Touch sensor test program R0.1a (C)ChaN, 2007 */
/* ATtiny2313 Internal osc 8MHz */
/*------------------------------------------------*/
#include <avr/io.h>
#include <inttypes.h>
#include <avr/pgmspace.h>
#include <avr/sleep.h>
#include <avr/interrupt.h>
#include "suart.h"
#include "xitoa.h"
#include "cs.h"
#define SYSCLK 8000000UL
/*------------------------------------------------*/
/* Global variables */
char line[16]; /* Console input buffer */
/*------------------------------------------------*/
static
void get_line (char *buff, int len)
{
char c;
int idx = 0;
for (;;) {
c = rcvr();
if (c == '\r') break;
if ((c == '\b') && idx) {
idx--; xputc(c);
}
if (((unsigned char)c >= ' ') && (idx < len - 1)) {
buff[idx++] = c; xputc(c);
}
}
buff[idx] = 0;
xputc(c);
xputc('\n');
}
void get_sens (int *res, int chs)
{
int ch, loop;
/* Clear count accumlator */
for (ch = 0; ch < chs; ch++) res[ch] = 0;
/* Capture and accumlate integration time for 1/60 second */
OCR0A = 8000000UL / 1024 / 60;
TCNT0 = 0;
TIFR = _BV(OCF0A);
TCCR0B = 0b101;
loop = 0;
do {
for (ch = 0; ch < chs; ch++) res[ch] += touch(ch);
loop++;
} while ((TIFR & _BV(OCF0A)) == 0);
TCCR0B = 0;
/* Mean calculation */
for (ch = 0; ch < chs; ch++) res[ch] /= loop;
}
/*------------------------------------------------*/
/* Online Monitor */
int main (void)
{
char *cp;
int n, c, ref[8], val[8];
PORTB = 0b10111111; /* Initialize I/O port */
DDRB = 0b01000000;
PORTD = 0b1000000;
DDRD = 0b0111111;
PORTA = 0b100;
DDRA = 0b011;
get_sens(ref, 8); /* Get reference count for each channel */
if (1) { /* Standalone mode */
/* Re-initialize I/O port as sens outputs */
PORTB = 0b00000000;
DDRB = 0b11111111;
for (;;) {
get_sens(val, 8);
for (c = 0; c < 8; c++) {
n = val[c] - ref[c];
if (n < 3) PORTB &= ~(1 << (7 - c));
if (n > 5) PORTB |= (1 << (7 - c));
}
}
}
/* Interactive mode */
xfunc_out = (void(*)(char))xmit;
xputs(PSTR("\nTouch sensor test program\n"));
for(;;) {
xputc('>'); /* Prompt */
get_line(line, sizeof(line));
cp = line;
switch (*cp++) { /* Pick a header char (command) */
case '\0' : /* Blank line */
break;
case 's' : /* Read sensor */
xputs(PSTR(" ch0 ch1 ch2 ch3 ch4 ch5 ch6 ch7\n"));
do {
get_sens(val,8);
for (c = 0; c < 8; c++) xitoa(val[c] - ref[c], -10, 4);
xputc('\r');
} while (bit_is_clear(PINB, 5)); /* repeart until a break detected */
xputc('\n');
break;
default : /* Unknown command */
xputs(PSTR("\n???"));
}
}
}
والدارة
على الرابط
http://elm-chan.org/works/capsens/capsens.png
نحتاج تعديل الكود للتحكم باربع ليدات فقط وتغيير المايكرو الى pic 16f84a
او 16f628a
تعديل دارة لمس
