Serial RS232 signal to parallel...

de fre · Post by **de fre** » Wed May 30, 2007 1:29 pm

I want to recive a rs232 signal with my UART into my pic and send it back parallel out...
So I want to send a parallel signal out of a rs232 serial signal.
So I need to put every bit of the rs232 8bit signal on to an other output of port B...
I only got flowcode v2 and I know a little bit of c-code;
So I tryed this:
http://img340.imageshack.us/img340/6727 ... lelok7.jpg
this is the code I putted in the code object...

Code: Select all

char SIGNALOUT[8];
char SOUTB[8]
SOUTBbits.RB0 = SIGNALOUTbits.RB0
SOUTBbits.RB1 = SIGNALOUTbits.RB1
SOUTBbits.RB2 = SIGNALOUTbits.RB2
SOUTBbits.RB3 = SIGNALOUTbits.RB3
SOUTBbits.RB4 = SIGNALOUTbits.RB4
SOUTBbits.RB5 = SIGNALOUTbits.RB5
SOUTBbits.RB6 = SIGNALOUTbits.RB6
SOUTBbits.RB7 = SIGNALOUTbits.RB7

char PORTB[8];

PORTBbits.RB0 = SOUTBbits.RB0
PORTBbits.RB1 = SOUTBbits.RB1
PORTBbits.RB2 = SOUTBbits.RB2
PORTBbits.RB3 = SOUTBbits.RB3
PORTBbits.RB4 = SOUTBbits.RB4
PORTBbits.RB5 = SOUTBbits.RB5
PORTBbits.RB6 = SOUTBbits.RB6
PORTBbits.RB7 = SOUTBbits.RB7

I think that the code is right but when I try to compile he gives an error...

So can some 1 pls help me, I don't know what else to do....
thx, FrΓ©

edit:
I use a pic16f877 and no wotchdog timer or parety bits, just the easy way...

Post by **Benj** » Wed May 30, 2007 3:41 pm

Hello

I have created a program to do this.

What you need to do is something similar to the following. First you must create a byte variable in flowcode named RETVAL.

Code: Select all

Loop while 1
{
     RETVAL = Receive RS232 timeout of 100
     Output PortB RETVAL
}

de fre · Post by **de fre** » Wed May 30, 2007 4:02 pm

Benj wrote:Hello

I have created a program to do this.

What you need to do is something similar to the following. First you must create a byte variable in flowcode named RETVAL.
Code: Select all
Loop while 1
{
     RETVAL = Receive RS232 timeout of 100
     Output PortB RETVAL
}

I just need to put this in the c code object so the other objects in my code may stay there?
(here is my object code:)
http://img340.imageshack.us/img340/6727 ... lelok7.jpg

really thx

edit:
I tryed it.
when I try to compile he gives an error...
same problem as before...

you made your pragram also in flowcode?
can you mabe send your program pls?

Post by **Benj** » Wed May 30, 2007 4:18 pm

All you have to do is replace your C code block with an Output Block which writes the value in RETVAL to portb.

If you wish to use the C cde icon then you can do something similar to this.

portb = FCV_RETVAL;

This will assign the value in the Flowcode variable RETVAL to portb

de fre · Post by **de fre** » Wed May 30, 2007 5:02 pm

Benj wrote:All you have to do is replace your C code block with an Output Block which writes the value in RETVAL to portb.

If you wish to use the C cde icon then you can do something similar to this.

portb = FCV_RETVAL;

This will assign the value in the Flowcode variable RETVAL to portb

as far I can see now with 4 leds on the portB it works...
really wierd I'm sure It didn't word a few munths ago...
but now it works so thx

really thx, FrΓ©