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16F1947 RS232 Can't Receive Data

 
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che_chia



Joined: 09 May 2011
Posts: 6

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16F1947 RS232 Can't Receive Data
PostPosted: Wed May 11, 2011 9:55 pm     Reply with quote

The following code is the master send data to the slave. I think the master has sent the data to slave, but the slave can not receive any data from master.

My Hardware Design: xmit=PIN_G1, rcv=PIN_G2. I am Using TX2 and RX2.

Master Code:
include <16F1947.H>
#fuses HS, NOWDT, NOPROTECT, BROWNOUT, PUT
#Fuses INTRC_IO
#use delay(clock=32000000)
#use rs232(baud=9600, xmit=PIN_G1, rcv=PIN_G2, bits=8)

void main()
{
output_bit(PIN_G0,0);
while(1)
{
output_high(Pin_G0);
putc(1);
delay_us(10);
}
}


Slave Code:
include <16F1947.H>
#fuses HS, NOWDT, NOPROTECT, BROWNOUT, PUT
#Fuses INTRC_IO
#use delay(clock=32000000)
#use rs232(baud=9600, xmit=PIN_G1, rcv=PIN_G2, bits=8)

int test_1=3;

#byte RC2STA = 0x495
#byte TX2STA = 0x496
#bit OERR = RC2STA.1
#bit FERR = RC2STA.2
#bit SPEN = RC2STA.7
#bit CREN = RC2STA.4
#bit TXEN = TX2STA.5
#byte PIE1 = 0x91
#bit RCIE = PIE1.5
#bit TXIE = PIE1.4

#int_RDA
void RDA_isr(void)
{
if( kbhit() )
{
output_bit(PIN_G0,0);
test_1 = getc();
delay_us(20);
}
}

void main()
{
output_bit(PIN_G0,0);
while(1)
{}
}




Thanks for your help !!!
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed May 11, 2011 10:30 pm     Reply with quote

You don't need to start a new thread for each new test of the rs232 with
the 16F1947. You already have a thread on it here:
http://www.ccsinfo.com/forum/viewtopic.php?t=45393

Just add new rs232 questions to that existing thread.
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