You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
584 B
36 lines
584 B
15 years ago
|
#define __16F873
|
||
|
|
#include "pic16f873.h"
|
||
|
|
|
||
|
|
typedef unsigned int word;
|
||
|
|
word at 0x2007 __CONFIG = _CP_OFF & _WDT_OFF & _BODEN_ON & \
|
||
|
|
_PWRTE_ON & _HS_OSC & _WRT_ENABLE_ON & \
|
||
|
|
_LVP_OFF & _DEBUG_OFF & _CPD_OFF;
|
||
|
|
|
||
|
|
unsigned char count, x;
|
||
|
|
unsigned char ms_delay;
|
||
|
|
|
||
|
|
void Intr() interrupt 0 {
|
||
|
|
ms_delay++;
|
||
|
|
PIR1 = 0;
|
||
|
|
PEIE = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
NOT_RBPU=0;
|
||
|
|
T2CON=0x7f;
|
||
|
|
GIE = 1;
|
||
|
|
PEIE = 1;
|
||
|
|
//INTCON=0xc0;
|
||
|
|
PIR1 = 0;
|
||
|
|
PIE1 = 2;
|
||
|
|
PR2 = 200;
|
||
|
|
|
||
|
|
TRISB = 0;
|
||
|
|
ms_delay = 0;
|
||
|
|
while(1) {
|
||
|
|
count = ms_delay;
|
||
|
|
x = PIE1;
|
||
|
|
PORTB = (count & 0xf0) | (x & 0xf);
|
||
|
|
}
|
||
|
|
}
|