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seho
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| receive interrupt dspic30f3011 problem |
 Posted: Wed Mar 25, 2009 2:57 am |
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hello!
We do not become the communication.
Anything which sends data whether we have the problem does not have the problem.
It is an authentication thing whether it is an interrupt problem.
| Code: |
#include <30F3011.h>
#FUSES HS //High speed Osc (> 4mhz)
#FUSES PR //Promiary Oscillator
#FUSES RESERVED //Used to set the reserved FUSE bits
#use delay(clock=20000000)
//#use rs232(baud=19200,parity=N,xmit=F5,rcv=F4,bits=8)
//#use rs232(baud=9600, UART2,stream=pc_host)
#use rs232(baud=9600,parity=N,xmit=PIN_F5,rcv=PIN_F4,bits=8,stream=pc_host)
char pc_data[20];
int i;
int mun =0;
int LED_Flag;
int no_flag;
int bat;
int temp;
int delay_flag = 0;
#int_RDA2
void RDA2_isr(void)
{
pc_data[0] = fgetc(pc_host);
output_bit(pin_E3,1); //GREEN
delay_ms(500);
output_bit(pin_E3,0); //GREEN
delay_ms(500);
}
void main()
{
delay_ms(1000);
output_bit(pin_E1,1); //GREEN
delay_ms(100);
output_bit(pin_E1,0); //GREEN
delay_ms(100);
delay_ms(1);
#use rs232(baud=19200, UART1A)
printf("%c%c",0xa3,1);
printf("%c%c%c",0xa1,0,0);
printf("%c Roll Indy Check %c",0xa2,0);
output_bit(pin_E8,0); //RS485 Enabled
enable_interrupts(INT_RDA2);
enable_interrupts(intr_GLOBAL);
while(true)
{
if((pc_data[0]=='S') )
{
output_bit(pin_E1,1); //GREEN
delay_ms(500);
output_bit(pin_E1,0); //GREEN
delay_ms(500);
pc_data[0] = 'A';
}
i++;
#use rs232(baud=19200, UART1A)
printf("%c%c%c",0xa1,0,1);
printf("%c da= %c %c %c",0xa2,pc_data[0],i,0);
delay_ms(100);
}
} |
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FvM
Joined: 27 Aug 2008
Posts: 2337
Location: Germany
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| Posted: Wed Mar 25, 2009 7:43 am |
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I don't see obvious problems at first look, just some less important things. The delay in RDA2 may cause overun errors, that block further receiption, cause no error handling is defined for UART2. Double initialization of UART1 duplicates the code but does no harm, hopefully. Furthermore, I'm not sure what's the role of RX485 enable in your hardware.
You didn't tell which part of the communication fails, you should be able to give more info, cause some code actions are monitored by LEDs. |
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