I am trying to clean up an existing application where handling of incoming serial data is done inside an event function OnRxData() of the serial component. I want to move the processing into a regular procedure so I can later add a different hardware channel (TCP/IP) as a user choice.
Now when looking at the existing code in the RxData() procedure I see that there is a while loop retrieving one character at a time from the serial port and processing it. In the processing these characters are stuffed into a temp string buffer until the complete packet is ready. If I divide the single procedure into two where the event procedure would have the while loop extracting the character and then call a handling procedure with the char as argument then the processor cannot have the while, but it must have the buffer... The only way I could imagine this to work is if: 1) I use a globally defined string variable as buffer 2) It is somehow possible to define the buffer as a static local var. So since I don't really want to use a global, is it possible to declare a local variable static in the sense that it retains its values across calls to the procedure? If so how is it done? -- Bo Berglund Developer in Sweden _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
