Hi,

Can you give me any tips on how to implement program loading and saveing via the serial port. I've been re-keying things by hand so far, with the charget and put using the serial port and a terminal emulator on the pc.

Thanks
Rob

The quickest and easiest way to save the program is to do this ...

Type LIST but not the return ..
Set your terminal program to ASCII capture..
Hit return to start the LIST command..
Once the list is complete stop the ASCII capture.

To load the program back there are two possible, similar, ways.

If your hardware supports hardware handshake properly just select the listing and use ASCII send to transfer it (You'll need to edit the 'Ready' prompt from the end of the listing).

If your hardware doesn't support hardware handshaking then you'll need to paste a number of SPACE characters at the start of each line to give the interpreter enough time to tokenise the previous line. The number of spaces depends on two things, how fast your processor is and how fast the serial link is. The faster the processor the fewer spaces, the faster the serial link the more spaces. Otherwise just do as above.

(Alternately edit the NULL command to insert $20's instead of $00's into the start of each line and do ..
NULL n
LIST
NULL 0
when you save the list)

Lee.