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Got PIC
Joined: 21 Mar 2008
Posts: 10
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| How to change the Parity, odd or even, on the fly using |
 Posted: Fri Mar 21, 2008 8:23 pm |
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I'm looking to change the RS232 parameters such as parity, stop bits, on the FLY. I have some code that allows a user to change the RS232 paramters and the only way I can see to chage the respect settings, is to use the #use rs232.
The problem Im having to being able to change, in and out, of different settings.
This is what I have tried so far..
Any help would ge great!
Note: I also tried putting the #use outside each function...no workie..
| Code: | void test_set_b()
{
#use delay(clock=10000000)
#use rs232(baud=115200,PARITY=E,BITS=8,STOP=1,xmit=PIN_C6, rcv=PIN_C7,ENABLE = PIN_A5,stream=COMM_PORT1,errors)
//#use rs232(baud=115200,PARITY=N, BITS=8,xmit=PIN_C6,rcv=PIN_C7,ENABLE = PIN_A5,stream=COMM_PORT1,errors)
#use rs232(baud=115200,PARITY=N, BITS=8,xmit=PIN_G1,rcv=PIN_G2,ENABLE = PIN_F7, stream=COMM_PORT2,errors)
fprintf(COMM_PORT2,"RTS HIGH (NOT ACTIVE)PARITY=O, BITS=8,STOP=1\n\r");
delay_ms(1);
// Set Baud Rate to the user selected Baud rate.
}
void test_set_a()
{
#use delay(clock=10000000)
#use rs232(baud=115200,PARITY=N,BITS=8,STOP=1,xmit=PIN_C6, rcv=PIN_C7,ENABLE = PIN_A5,stream=COMM_PORT1,errors)
#use rs232(baud=115200,PARITY=N, BITS=8,xmit=PIN_G1,rcv=PIN_G2,ENABLE = PIN_F7,stream=COMM_PORT2,errors)
fprintf(COMM_PORT2,"RTS LOW (ACIVE) baud=115200,PARITY=N, BITS=8\n\r");
//Force baud rate to 115200 baud
} |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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Got PIC
Joined: 21 Mar 2008
Posts: 10
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| Posted: Fri Mar 21, 2008 9:09 pm |
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Maybe I should have mentioned..
#use rs232(baud=115200,PARITY=N, BITS=8,xmit=PIN_C6, rcv=PIN_C7,ENABLE = PIN_A5,stream=COMM_PORT1,errors)
//#use rs232(baud=115200,PARITY=O, BITS=8,STOP=2, xmit=PIN_C6, rcv=PIN_C7,ENABLE = PIN_A5,stream=COMM_PORT1,errors)
#use rs232(baud=115200,PARITY=N, BITS=8,xmit=PIN_G1,rcv=PIN_G2,ENABLE = PIN_F7, stream=COMM_PORT2,errors)
I'm using both uarts on this part... |
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Got PIC
Joined: 21 Mar 2008
Posts: 10
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| Posted: Fri Mar 21, 2008 10:25 pm |
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PCM programmer;
I'm not sure if I can use you example if I'm already using the STREAM for both UARTS????
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,ERRORS, stream=No_Parity)
#use rs232(baud=9600,parity=O,xmit=PIN_C6,rcv=PIN_C7,bits=8,ERRORS, stream=Odd_Parity) |
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