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xellnaga Guest
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How to use enumeration in PIC |
Posted: Sun Jun 03, 2007 10:59 pm |
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Hi, i'm a newbies in PIC programming. I would like to know if anyone out there can help me to use enum...
Below is my codes..when I viewing the output from hyperterminal, the output is go to default value in switch-case.
Any idea??
Regards
#include <16f877a.h>
#include <string.h>
#use delay(clock=20000000)
#fuses XT,NOWDT,NOPROTECT
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)
enum jenis{
berhenti, masalah, keDepan, keKiri, keKanan
}statusDepan;
void main()
{
mulakan_sonic();
mulakan_psensor();
while(1){
monitor_distance_sensor1();
monitor_distance_sensor2();
read_ObjectSensors(dpnKiri,dpnKanan,blkgKiri,blkgKanan);
statusDepan = PeriksaHalanganDepan(dpnKiri,dpnKanan,jDepan);
switch(statusDepan)
{
case masalah:
printf("Terdapat masalah menentukan halangan di hadapan\r\n\n");
break;
case berhenti:
printf("Robot berhenti..\r\n\n");
break;
case keDepan:
printf("Robot bergerak ke hadapan..\r\n\n");
break;
case keKiri:
printf("Robot bergerak ke kiri..\r\n\n");
break;
case keKanan:
printf("Robot bergerak ke kanan..\r\n\n");
break;
default:
printf("Gagal menentukan aksi..%s\r\n\n",statusDepan);
break;
}
delay_ms(2000);
}
}
char PeriksaHalanganDepan(int8 dpnKiri,int8 dpnKanan, float jDepan)
{
char status[20];
if (jDepan>60)
{
if (dpnKiri<80 && dpnKanan<80>80 && dpnKanan>80)
strcpy(status,"berhenti");
else if(dpnKiri>80 || dpnKanan<80)
strcpy(status,"keKanan");
else if(dpnKiri<80>80)
strcpy(status,"keKiri");
else
strcpy(status,"masalah");
}
else
strcpy(status,"berhenti");
return status;
} |
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ckielstra
Joined: 18 Mar 2004 Posts: 3680 Location: The Netherlands
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Posted: Mon Jun 04, 2007 1:40 am |
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First a general comment: Read the topic on top of this forum called 'Posting code in this Forum'. Here you will find some usefull information on how to post code to this forum. For example, using the 'code' buttons will help preserve the layout of your code which makes reading easier to us (and gets you more and quicker responses).
Second, always add the NOLVP fuse to your code. 99% of the programmers are of the high-voltage type. Without the NOLVP fuse your PIC might stall with a voltage spike on pin B3 (PGM).
For the enumeration problem: enums are integer values, not strings.
So instead of using a string copy you have to do something like |
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