writing to a COM port

[Erikk]

hello ,

i'm programming a microcontroller which gets some characters from a computer over a RS232. now the microcontroller partt isnt a problem. but the pc program is.

i just want to make a simple program (on the pc) which send purely 1 character to the com port, and then waits until it receives something back from the microcontroller.

but i havent got a clue how i can read/write to a COM port in C.

can someone help me out en point me in the wright direction?

[vart]

On windows you can open com-port using CreateFile
and then WriteFile to send data to the port

http://msdn.microsoft.com/library/de...s_resource.asp

[Erikk]

oke thanx! hope i can make it work now