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Hi, can anyone tell me how i would set up a variable that expects a certain amount of data to be received through rs232.
i.e. to receive 18 bytes of data only once the the rx pin has been set to input.
thanks guys
because what comes through the UART is the data from the sesor board of the weather station, i.e. the temperature, pressure etc which is placed on a rooftop. this comes to my transmitter through UART which i then have to transmit to the receiver which outputs this data to an ethernet board that is connected to the database. I agree getchar is not great...but im unfarmiliar with embedded c and need some basic direction.
There is example code in the Support section of this website (see Downloads), and it's also in the Examples folder in your PC installation.
Reading list: http://www.keil.com/books/8051books.asp www.8052.com/books.phtml
The ACCU (Association of C & C++ Users) also has a whole load of book reviews - including a section on embedded:
brian.accu.org/.../