there is the PIC 16F84 heart beat calculation source code i take from one of the thread, can someone help me to translate to the PIC assembly language, thank !
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#include<htc.h>
#define _XTAL_FREQ 32768 //Specifies oscillator frequency of 32.768 Khz
char beat_rate=0,med,time=0; //Variable declaration and intialization
//This array defines the decimal equivalents for setting the output pins in driving the 7 segment displays.
char num[10]= {126, //0
12, //1
182, //2
158, //3
204, //4
218, //5
250, //6
14, //7
254, //8
222 //9
};
//This function is called every time an interrupt occurs
void interrupt intrpt(void){
if(INTF==1){ //This is true if the interrupt was caused by a rising edge on RB0
beat_rate++; //Increment the pulse count
INTF=0; //Reset the external interrupt flag
}//end if(INTF==1)
if(T0IF==1){ //This is true if the interrupt was caused by a TMR0 overflow
time++; //Increment the interrupt counter
if(time==60){ //This is true every 60th TMR0 overflow (once per minute)
time=0; //Reset interrupt counter
T0CS=1; //Sets the T0CKI as the external clock source for TMR0
INTCON=0; //Disables all interrupts
}//end if(time==60)
}//end if(T0IF==1)
}//end intrpt()
//This function is called to drive the 7 segment displays
void show(){
med=beat_rate/100; //calculates the 100's digit
PORTB=num[med]; //Assigns result to PORTB
RA2=0;__delay_ms(10); //Enable digit 3; delay long enough for digit to be seen
RA2=1; //Disable digit 3
med=(beat_rate%100)/10; //Calculates the 10's digit
PORTB=num[med]; //Assigns result to PORTB
RA1=0;__delay_ms(10); //Enable digit 2; delay long enough for digit to be seen
RA1=1; //Disable digit 2
med=beat_rate%10; //Calulcates the 1's digit
PORTB=num[med]; //Assigns result to PORTB
RA0=0;__delay_ms(10); //Enable digit 1; delay long enough for digit to be seen
RA0=1; //Disable digit 1
}//end show()
void main ( ){
TRISA=0b11111000; //Set bits 0-2 as output and bits 3-7 as input
TRISB=0b00000001; //Set bit 0 and input and bits 1-7 as output
PORTA=0b00000111; //Sets bits 0-2 and clears bits 3-7
TMR0=0; //Clears the TMR0 register
OPTION=0b11100100; //Sets TMR0 options and pre-scaler
INTCON=0; //Clears the INTCON register
//main program loop
while(1){
start:
while(RA3==1){ //If pushbutton is pressed
show();
}
beat_rate=0;
T0CS=0; //Set the internal instruction clock as the clock source for TMR0
INTCON=0b10110000; //Globally enables interrupts, TMR0 interrupt, and RB0 external interrupt
while(T0IE==1){ //If TMR0 interrupt is enabled
show();
}
INTCON=0; //Disables all interrupts
while(beat_rate!=0){
show();
if(RA3==0){ //If pushbutton is not pressed
__delay_ms(125); //Delays for 125 ms
__delay_ms(125); //Delays for 125 ms
TMR0=0; //Clears the TMR0 register
beat_rate=0;
goto start;
}
}
}//END while (1)
}//End main
//___________END_PROGRAM___________
___________________________________________________________________________
#include<htc.h>
#define _XTAL_FREQ 32768 //Specifies oscillator frequency of 32.768 Khz
char beat_rate=0,med,time=0; //Variable declaration and intialization
//This array defines the decimal equivalents for setting the output pins in driving the 7 segment displays.
char num[10]= {126, //0
12, //1
182, //2
158, //3
204, //4
218, //5
250, //6
14, //7
254, //8
222 //9
};
//This function is called every time an interrupt occurs
void interrupt intrpt(void){
if(INTF==1){ //This is true if the interrupt was caused by a rising edge on RB0
beat_rate++; //Increment the pulse count
INTF=0; //Reset the external interrupt flag
}//end if(INTF==1)
if(T0IF==1){ //This is true if the interrupt was caused by a TMR0 overflow
time++; //Increment the interrupt counter
if(time==60){ //This is true every 60th TMR0 overflow (once per minute)
time=0; //Reset interrupt counter
T0CS=1; //Sets the T0CKI as the external clock source for TMR0
INTCON=0; //Disables all interrupts
}//end if(time==60)
}//end if(T0IF==1)
}//end intrpt()
//This function is called to drive the 7 segment displays
void show(){
med=beat_rate/100; //calculates the 100's digit
PORTB=num[med]; //Assigns result to PORTB
RA2=0;__delay_ms(10); //Enable digit 3; delay long enough for digit to be seen
RA2=1; //Disable digit 3
med=(beat_rate%100)/10; //Calculates the 10's digit
PORTB=num[med]; //Assigns result to PORTB
RA1=0;__delay_ms(10); //Enable digit 2; delay long enough for digit to be seen
RA1=1; //Disable digit 2
med=beat_rate%10; //Calulcates the 1's digit
PORTB=num[med]; //Assigns result to PORTB
RA0=0;__delay_ms(10); //Enable digit 1; delay long enough for digit to be seen
RA0=1; //Disable digit 1
}//end show()
void main ( ){
TRISA=0b11111000; //Set bits 0-2 as output and bits 3-7 as input
TRISB=0b00000001; //Set bit 0 and input and bits 1-7 as output
PORTA=0b00000111; //Sets bits 0-2 and clears bits 3-7
TMR0=0; //Clears the TMR0 register
OPTION=0b11100100; //Sets TMR0 options and pre-scaler
INTCON=0; //Clears the INTCON register
//main program loop
while(1){
start:
while(RA3==1){ //If pushbutton is pressed
show();
}
beat_rate=0;
T0CS=0; //Set the internal instruction clock as the clock source for TMR0
INTCON=0b10110000; //Globally enables interrupts, TMR0 interrupt, and RB0 external interrupt
while(T0IE==1){ //If TMR0 interrupt is enabled
show();
}
INTCON=0; //Disables all interrupts
while(beat_rate!=0){
show();
if(RA3==0){ //If pushbutton is not pressed
__delay_ms(125); //Delays for 125 ms
__delay_ms(125); //Delays for 125 ms
TMR0=0; //Clears the TMR0 register
beat_rate=0;
goto start;
}
}
}//END while (1)
}//End main
//___________END_PROGRAM___________
