Re : updating text

I dont't have serial but this is the idea when you want the last entry on top of a list:

you store the serial data in temp (line 16) and after the while loop you place temp with a line break \n in front of val (line 20).

Greetings, Chrisir   

1. String val="pwwe";
2. int j=0;
3. void setup()
4. {
5.   size(500, 500);
6.   frameRate(1);
7.   textSize(32);
8. }
9. void draw()
10. {
11.   background(111);
12.   //myPort.write("temp?");
13.   int  i=0;
14.   String temp="";
15.   while ( i < 10) {
16.     temp = temp+char(i+j+65) ;
17.     i++;
18.   }
19.   j++;
20.   val = temp+"\n"+val;
21.   println(val);
22.   if (val != null && val.length() > 0) {
23.     text(val, 50, 100);
24.   }
25. }