sending binairy value rs232

[marten]

hello,

I've got a problem, i try to send the binairy value, and not ascii code...

When you send you must send a string, so I convert a binairy number to a string, but if the value is above 10 he converts it to 10.. But i want that he doesn't convert that to asci but to binairy,,, so 63 is 111111 and not A...

Who can help me?

[pincpanter]

See the attached example. As you can verify, 63 is not an "A" indeed, it's a "?" character. The "A" character is a 65.

[marten]

Thank you it works partly,

What i'm trying to do is:

send a value from 0 - 255 to my PIC accros the RS232..

If the value is not ascii he doesn't send a value, for example 128 is ..  (With NI spy VISA Write ("COM1", ".."))

Now is my question, how can i send a decimal value 0-255 to the PIC as a String. The value needs to be one character, so he can store it in just one register... (binairy value 255 is 11111111)

Message Edited by marten on 05-30-2007 06:23 AM

[pincpanter]

This does not correspond to my experience. I set 255 into my U8 constant (see the ByteToString.vi example), then i wire my string to a VISA Write.
NI Spy does report an FF output to the serial port, as expected.

[GerdW]

Hi marten,

conversion from U8 to string can also be done without using typecasting:

Message Edited by GerdW on 05-30-2007 02:45 PM

[marten]

yes, that wasn't the problem (sorry )

I'am sending the value 255 to the PIC, when I do this in Hyperterminal the memory is 255 x FF but when I do this in Labview he got 'holes' in his memory...

With the advanced VI it's working properly, but with my program not....

It seems to be that he sends more then one char each time... but i can't find it

[marten]

yes, that wasn't the problem (sorry )

I'am sending the value 255 to the PIC, when I do this in Hyperterminal the memory is 255 x FF but when I do this in Labview he got 'holes' in his memory...

With the advanced VI it's working properly, but with my program not....

It seems to be that he sends more then one char each time... but i can't find it

[GerdW]

Hi marten,

sounds like you configured the termination characters wrong.
Maybe you can post your vi?

[pincpanter]

Can you post your program or a part of it? Preferably for version 8.0.1 or earlier.