User`s manual

258 Chapter 8
O:\Manuals\E6380A_Progguid\Book\Ibasic.fm
IBASIC Controller
Method #3. Developing Programs Using Word Processor on a PC (Least Preferred)
As the transfer starts the IBASIC Command Line field will intensify and
characters will scroll in left to right. As each line is finished the “*”
annunciator will be displayed, for about 0.5 seconds, in the upper, right
corner of the Test Set indicating that the IBASIC controller is running
as the line is parsed. If another line is sent before this parsing is
complete, the Test Set will beep indicating an error, and the next line of
the transfer will be rejected.
If the transfer is rejected, the transfer must be halted and the delay
between lines increased to a slightly higher number. Start the transfer
again from the beginning. When all lines have transferred, list the
program to verify it was completely received. At this time, the program
is ready to run. The RUN command can be keyed in from the PC or the
K1 Run key in the TESTS (IBASIC Controller) screen can be pressed.
NOTE Do not press the Run Test key in the SOFTWARE MENU screen as this
will scratch the program you just loaded and look to the PC card for a
procedure file.
For longer programs (greater than 100 lines), transferring the ASCII
text file directly into the IBASIC program memory through the RS-232
serial port is too time consuming. To speed the process up, it is
necessary to transfer the program using a two step process.
1. Transfer the ASCII text file directly to a Test Set mass storage
location (typically a PC card).
2. Perform a GET command to bring the program from mass storage
into the IBASIC program memory.
To perform the ASCII text file transfer for long programs, an IBASIC
program, running in the Test Set, is required to manage the transfer. A
suitable program titled “ASCII_DN” (for ASCII downloader) is shown
on the following page.
The ASCII_DN program runs on the Test Set and directs ASCII
characters coming in Serial Port 9 directly to a file named
TEMP_CODE on a PC card. The program creates the TEMP_CODE file
on the PC card with a size of 650 records (166 Kbytes or enough for
about 6600 lines of ASCII text). When the program is run, it displays
Ready to receive ASCII file data. When this prompt is displayed,
initiate the transfer of the ASCII text file representing the program
from the PC to the Test Set. Shown below are two methods of sending
an ASCII file from the PC to the Test Set. Both methods require that
the ASCII_DN program be running in the Test Set when the transfer
begins. The ASCII_DN program can be transferred into the Test Set
either by typing it in using the IBASIC EDIT Mode described earlier, or
downloading it from an ASCII text file one line at a time as explained
earlier.