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smit
Joined: 30 Jul 2009
Posts: 2
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| uart don't interrupt |
 Posted: Thu Jul 30, 2009 1:15 pm |
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Hi
interrupt doesn't work on circuit. Can you look at the codes and tell me where I'm making wrong?
| Code: |
#include <18F4620.h>
#FUSES NOWDT,WDT128,H4,NOPROTECT,BROWNOUT,NOPUT,STVREN,NODEBUG,NOLVP,NOWRT,NOWRTB,NOWRTC,NOCPD,NOCPB,NOEBTR,NOEBTRB,CCP2B3
#device ADC=10
#use delay(clock=32Mhz,oscillator=8Mhz)
#use rs232(baud=9600, uart, parity=N, stop=1,bits=8)
#define FAST_GLCD
#include "HDM64GS12.c"
#include <MATH.H>
#include "graphics.c"
.
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#INT_RDA
void SeriVeriAl(void)
{
veri=getc();
alll=true;
}
void main(void) // Ana program
{
clear_interrupt(INT_RDA);
enable_interrupts(INT_RDA);
disable_interrupts(INT_timer0);
enable_interrupts(GLOBAL);
setup_adc( ADC_CLOCK_INTERNAL );
setup_adc_ports( AN0_TO_AN2);
do{
if(alll){sprintf(dene3,"G");glcd_text57(15,8,dene3,1,ON);}
}while(TRUE);
}
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Jul 30, 2009 1:27 pm |
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What's the reason for the mux ? Your mux is controlled by a PIC pin.
What's the default state of a PIC pin, upon power-on reset ? Fix that,
or get rid of the mux. |
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smit
Joined: 30 Jul 2009
Posts: 2
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| Posted: Thu Jul 30, 2009 2:27 pm |
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| PIC pin choose one of RS232 modules. PIC pin receives the transmission but doesn't make interrupt. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Jul 30, 2009 2:32 pm |
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| Where is the line in your posted code that selects the module ? |
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dyeatman
Joined: 06 Sep 2003
Posts: 1934
Location: Norman, OK
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| Posted: Thu Jul 30, 2009 3:51 pm |
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According to the datasheet pin 7 (Enable/Strobe) must be low and I don't see pin 7 connected in the schematic. It looks like the Enable shows as pin 3 in the drawing but pin 3 is also connected as an input so I may be seeing it wrong.
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