New guy in visual basic have a problem. (^.^)

[yuhanghong]

now, i am trying to started my first Vb programe.
i want the computer send out a short string " 0E " in hex.thought the serial port.
and receive " 0E " in other serial port.
and my subroutine of serial port parts is done.

but i have a problem now,
for example,
when i send a "E" out, the other serial port received a "45". that is not i want.
and i try to send " 15" out and then receive "31 34 " back.
i do not understand what going out and no idea for that.

could someone tell me plz ?

hang (^.^ )

 

[yura717]

You should read about ASCII codes and HEX codes.
ASCII - Wikipedia, the free encyclopedia
**broken link removed**
Hexadecimal - Wikipedia, the free encyclopedia

 

[BradtheRad]

Sender and receiver must be set for the same baud rate. Same parity. Same bit quantity ( 7 or 8).

 

[yuhanghong]

so, that means i need to change my text to ASCII, then sent out.
am i right?

thank you so much ^.^

 

[yura717]

I will say you must use Hex codes. I don't know how to declare hex code in VB, but in C will be like this " int x = 0x0F"

 

[saubhik]

Yuhanghong,

The representation of Hex values in VB6 is adding '&h' infront of the value , example .... you want 5 in hex then it has to be written like &H5.

And yes if the thing is that it is returning the hex value , that is why you got '45' incase of 'E'.

But in your question you written '15' is returning '31 34' then it is wrong as it should return '31 35', please check.


Regards,
Saubhik Das