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howdy yall
im using a p18.8680 mirocontroller chip in my embedded systems class. we are conducting our final project and my lab partner and i decided to create a toy car for our project. it will actually be a model car with a siren and flashing lights. an emergency police car. we have done a couple of labs already that we are planning on using. my questions is: how can we combine the two codes?
we have already tried but we get a couple of errors and are having trouble with it. i am asking yall because if we ask the professor, he will deduct points.
our “mock” led code:
#include<p18F8680.h>
#include<delays.h>
char led_tab [8] ={0x7E,0xBD,0xDB,0xE7,
0xE7,0xDB,0xBD,0x7E};
void main (void)
{
unsigned char i;
TRISD = 0x00;
while(1){
for (i = 0; i < 8; i++){
PORTD = led_tab;
Delay10KTCYx(300);
}
}
return;}
#include<p18F8680.h>
#include<delays.h>
char led_tab [8] ={0x7E,0xBD,0xDB,0xE7,
0xE7,0xDB,0xBD,0x7E};
void main (void)
{
unsigned char i;
TRISD = 0x00;
while(1){
for (i = 0; i < 8; i++){
PORTD = led_tab;
Delay10KTCYx(300);
}
}
return;}
our “mock” siren code, this code is the one from our actual lab:
#include <P18F8680.h>
#define G3 2551
#define B3 2025
#define C4 1911
#define C4S 1804
#define D4 1703
#define E4 1517
#define F4 1432
#define F4S 1351
#define G4 1276
#define A4 1136
#define B4F 1073
#define B4 1012
#define C5 956
#define C5S 902
#define D5 851
#define E5 758
#define F5 716
#define F5S 676
#define G5 638
#define SS 60000
unsignedint delayCNT;
voiddelayby10ms(unsigned char n);
voidhigh_ISR(void);
voidlow_ISR(void);
#pragmacode high_vector = 0x08 // force the following statement to
voidhigh_interrupt (void) // start at 0x08
{
_asm
goto high_ISR
_endasm
}
#pragmacode low_vector = 0x18 // force the following statement to
voidlow_interrupt (void) // start at 0x18
{
_asm
goto low_ISR
_endasm
}
#pragmacode // return to the default code section
#pragmainterrupt high_ISR
voidhigh_ISR (void)
{
if(PIR1bits.CCP1IF){
PIR1bits.CCP1IF=0;
CCPR1 +=delayCNT;
}
}
#pragmacode
#pragmainterrupt low_ISR
voidlow_ISR (void)
{
_asm
retfie 0
_endasm
}
unsignedrom int score[102]= {D4,B3,G3,B3,D4,G4,B4,A4,G4,B3,C4S,
D4,D4,D4,B4,A4,G4,F4S,E4,F4S,G4,G4,D4,B3,G3,
D4,B3,G3,B3,D4,G4,B4,A4,G4,B3,C4S,D4,D4,D4,
B4,A4,G4,F4S,E4,F4S,G4,G4,D4,B3,G3,B4,B4,
B4,C5,D5,D5,C5,B4,A4,B4,C5,C5,C5,B4,A4,G4,
F4S,E4,F4S,G4,B3,C4S,D4,D4,G4,G4,G4,F4S,
E4,E4,E4,A4,C5,B4,A4,G4,G4,F4S,D4,D4,
G4,A4,B4,C5,D5,G4,A4,B4,C5,A4,G4,0};
unsignedrom int dur[101]= {30,10,40,40,40,80,30,10,40,40,40,
80,20,20,60,20,40,80,20,20,40,40,40,40,40,
30,10,40,40,40,80,30,10,40,40,40,80,20,20,
60,20,40,80,20,20,40,40,40,40,40,20,20,
40,40,40,80,20,20,40,40,40,80,40,60,20,40,
80,20,20,40,40,40,80,40,40,40,20,20,
40,40,40,40,20,20,20,20,40,40,20,20,
60,20,20,20,80,20,20,60,20,40,80};
voidmain (void)
{
unsigned int i;
unsigned char temp1, temp2;
INTCONbits.GIE =0;
RCONbits.IPEN =1;
IPR1bits.CCP1IP =1;
TRISCbits.TRISC2 =0;
T1CON =0xB1;
T3CON =0x81;
PIE1bits.CCP1IE =1;
PIR1bits.CCP1IF =0;
INTCON =0xC0;
CCP1CON =0x02;
i =0;
while(score){
delayCNT =score;
CCPR1 =(unsigned int)TMR1L + (unsigned int)TMR1H * 256 +
delayCNT;
delayby10ms(dur);
i++;
}
CCP1CON =0;
while(1);
}
voiddelayby10ms(unsigned char n)
{
unsigned char i;
T0CON =0x80;
for(i=0;i<n;i++){
TMR0H =0x63;
TMR0L =0xC0;
INTCONbits.TMR0IF=0;
while(!(INTCONbits.TMR0IF));
}
}
Hi Erik,
Can you explain the flow of your project through good description or flow chart. It would be easy to understand exact application of you project & to combine your codes.
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