hwryu
Joined: 25 Sep 2013
Posts: 18
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| TX problem in PIC18F46k22 |
 Posted: Thu Sep 26, 2013 1:07 am |
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MY Compiler's version is 4.108.
When sending a character to PC via Only TX of UART1, PC is receiving character from PIC8F46K22. BUT when sending a character to PC via TX of both UART1 and UART2, PIC is shut down and freezing.
I want two UART.
Help me.
| Code: |
#include <18f46k22.h>
#device *=16 adc=10
//#device pass_strings=in_ram
#FUSES H4
#use delay(internal=16Mhz,clock=64Mhz,RESTART_WDT,clock_out))
#use rs232(UART1,baud=19200,stop=1,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,restart_WDT,errors,stream=SER1)
#use rs232(UART2,baud=19200,stop=1,parity=N,xmit=PIN_D6,rcv=PIN_D7,bits=8,restart_WDT,errors,stream=SER2)
#ZERO_RAM
#include <stdio.h>
#use fast_io(a)
#use fast_io(b)
#use fast_io(c)
int32 gtemp1=1234567;
long int Delay_time=1000;
int Serial_1=0;
int Serial_2=0;
int Rx1Flag=0;
char RecvChar=null;
#int_rda
void rda_isr(void)
{
RecvChar = getc();
Delay_time = 100;
Rx1Flag = 1;
}
#int_ext
Void ext_isr(){
if(Delay_time==100)
Delay_time=1000;
else
Delay_time=100;
}
void main()
{
SET_TRIS_A(0b00000000);
SET_TRIS_B(0b11000001);
SET_TRIS_C(0b11000000);
SET_TRIS_C(0b11000000);
// Port_B_Pullups(TRUE);
enable_interrupts(INT_EXT);
disable_interrupts(INT_RB);
disable_interrupts(INT_AD);
enable_interrupts(INT_RDA);
disable_interrupts(INT_TBE);
disable_interrupts(INT_CCP1);
disable_interrupts(INT_CCP2);
disable_interrupts(INT_EEPROM);
enable_interrupts(GLOBAL);
while(true){
#byte ANSELA = 0xF38
#byte ANSELB = 0xF39
#byte ANSELC = 0xF3A
#byte ANSELD = 0xF3B
#byte ANSELE = 0xF3C
ANSELA = 0;
ANSELB = 0;
ANSELC = 0;
ANSELD = 0;
ANSELE = 0;
delay_ms(500);
gtemp1+=1;
fprintf(SER1,"UART1=%lu \r\n", gtemp1);
fputs("----------------",SER1);
fprintf(SER2,"UART2=%lu \r\n", gtemp1);
fputs("----------------",SER2);
if(Rx1Flag==1)
{
fprintf(SER1,"%c \r\n",RecvChar);
Rx1Flag = 0;
}
output_bit(pin_b1,1);
// led=0b000000010;
delay_ms(Delay_time);
output_bit(pin_b1,0);
// led=0b00000000;
delay_ms(Delay_time);
// Delay_time +=50;
}
} |
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