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fazreen
Joined: 18 Oct 2012
Posts: 10
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| how to combine this program ? |
 Posted: Fri Nov 09, 2012 5:32 am |
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1. someone help me how to combine this two program to be a single program...
2. help me to join the program tx and rx in one program only
this is my tx program
| Code: |
#include <18F4550.h> // PIC18F4550 HEADER FILE
#fuses PUT, HS, NOWDT, NOLVP, NOBROWNOUT, // EXTERNAL CLOCK, NO WATCH DOG TIMER, NO LOW VOLTAGE PROGRAMMING
#use delay (clock=20M)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, bits=8, parity=N, errors ) // 4 MHZ CRYSTAL
#define BUTTON1 PIN_B0 // PRESET BUTTON 1
#define BUTTON2 PIN_B1 // PRESET BUTTON 2
#define LED1 PIN_B6 // LED 1
#define LED2 PIN_B7 // LED 2
void main ()
{
set_tris_b(0x01); // SET ALL PORT 0-b3 AS INPUT b4-b7 OUTPUT
//set_tris_d(0x00);
//set_tris_c(0x80); // SET ALL PORT d AS OUTPUT PORT(0b 0000 0000)
output_b(0x00);
while(true)
{
putc('g');
delay_ms(500);
putc('y');
delay_ms(500);
}
} |
and this my rx program
| Code: |
#include <18F4550.h> // PIC18F4550 HEADER FILE
#fuses PUT, HS, NOWDT, NOLVP, NOBROWNOUT, // EXTERNAL CLOCK, NO WATCH DOG TIMER, NO LOW VOLTAGE PROGRAMMING
#use delay (clock=20M)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, bits=8, parity=N, errors ) // 4 MHZ CRYSTAL
#define LED1 PIN_B6 // LED 1
#define LED2 PIN_B7 // LED 2
void main ()
{
//set_tris_b(0x01); // SET ALL PORT 0-b3 AS INPUT b4-b7 OUTPUT
//set_tris_d(0x00);
//set_tris_c(0x80); // SET ALL PORT d AS OUTPUT PORT(0b 0000 0000)
//output_b(0x00);
char data;
while(true)
{
data = getc();
switch(data)
{
case 'g':output_high(PIN_B6);
output_low(PIN_B7);
break;
case 'y':output_low(PIN_B6);
output_high(PIN_B7);
break;
default:output_low(PIN_B6);
output_low(PIN_B7);
break;
}
}
} |
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Mike Walne
Joined: 19 Feb 2004
Posts: 1785
Location: Boston Spa UK
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| Posted: Fri Nov 09, 2012 7:14 am |
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Rather depends on what you're trying to achieve.
The CCS example EX_STR shows how to rx and tx in succession.
If you want to interleave tx & rx you could try EX_SISR which does RS232 interrupts
Mike
EDIT If you don't like the idea of using interrupts, you can loop round, polling for characters then keys. |
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juanodiy
Joined: 07 Sep 2012
Posts: 17
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| Posted: Mon Nov 12, 2012 2:07 am |
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well, so many things you can do, if you are using rs232 i suppose you want to connect to a PC or something, so for join the programs one solution can be:
| Code: |
void main()
{
if(kbhit)
{
x=getc();
}
switch(x)
{
case 'g':output_high(PIN_B6);
output_low(PIN_B7);
break;
case 'y':output_low(PIN_B6);
output_high(PIN_B7);
break;
default:output_low(PIN_B6);
output_low(PIN_B7);
}
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Mike Walne
Joined: 19 Feb 2004
Posts: 1785
Location: Boston Spa UK
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| Posted: Mon Nov 12, 2012 11:29 am |
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Your tx code is a loop sending out a "g" then a "y" at 500ms intervals.
Your rx code is looking for "g" to turn ports one way, and a "y" to turn the other.
So with your combined code you could connect rx to tx.
Is this what you want?
1) With the rx-tx connection the ports will toggle at 500ms intervals.
2) Without the rx-tx connection the toggling will stop.
Mike |
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