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art
Joined: 21 May 2015
Posts: 181
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| Exit ADC |
 Posted: Tue Sep 15, 2015 11:49 pm |
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Hi, I'm trying to make a code that user can select to check ADC voltage or send Output to port D by typing "Z" or "z". The main problem here is how to modify it to make it able to exit from ADC which is in B: to A: .
Here is my code:
| Code: |
#include <18F4550.h>
#DEVICE ADC=10
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600,xmit=PIN_C6,rcv=PIN_C7)
#include <string.h>
#include <input.c>
#include <stdio.h>
#include <stdlib.h>
void main()
{
int i;
float min, value, max;
int8 binary_string[10];
A:
printf("Enter "Z" for ADC or "z" for binary number : \n");
get_string(binary_string,9);
if(binary_string=="Z")
{goto B; }
if(binary_string=="z")
{goto C; }
B:
setup_port_a(ALL_ANALOG);
setup_adc(ADC_CLOCK_INTERNAL);
set_adc_channel(0);
do {
min=1023;
max=0;
for(i=0; i<=1; ++i)
{
delay_ms(5);
value = Read_ADC();
If( value<=min);
min=value*5/1023;
If( value>=min);
max=value;
}
printf(" Voltage : %2.3f V NO: %3.0f ", min, max);
}while(TRUE);
C:
while(true)
{
printf("Enter 8 binary number : \n");
get_string(binary_string,9);
if(binary_string=="A")
{goto A; }
output_D((int8)strtoul(binary_string,0,2));
}
} |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Sep 16, 2015 1:01 am |
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Normally, if you want something to "exit", you make it into a routine,
and you call it, and then it exits and returns to your main code.
Also, we don't normally use goto's. We would use either a switch-case
that called a routine in each case, or we would use if-else statements.
You need to get a book on the C language. |
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