Autosite_Users_Manual - 第92页
Computer Remote Control A-2 AutoSite User Manu al System Se tup The programmer receives CRC commands and sends responses to the host comput er through an RS-232C port us ing a 25-pin D connector in two possible configu r…
AutoSite User Manual A-1
Computer Remote Control
The programmer can be controlled via a host computer using Computer
Remote Control (CRC) protocol. CRC commands have been designed to
be incorporated into a remote computer software program (driver) which
will allow an operator to control the programmer. The driver generates
commands and sends them to the programmer, which executes the
commands. The programmer then returns a response character, and in
some cases, data. The driver reacts to the response and uses it to generate
messages and prompts for the user.
Note: You do
not
need to use CRC if you are using TaskLink or are accessing
the programmer’s built-in menu system (using HiTerm or a similar
product to communicate with the programmer). CRC commands offer
you an alternative, allowing you to create your own custom interface with
the programmer.
This chapter is not intended to be a complete guide to using CRC
commands. For a more detailed explanation of CRC commands, refer to
the “UniSystem Computer Remote Control” Application Note available
from Customer Support.
This chapter contains the following information:
•
System Setup
—Explains how to set up the programmer for remote
control operation. Includes information on entering and exiting CRC
mode.
•
CRC Summary
—Gives a listing of the available CRC commands.
Which Driver to
Use?
If you are using CRC commands, you must use a driver program to send
the CRC commands and receive the programmer’s responses. You can
either write your own software driver or use an existing driver (such as
the
terminal.exe
program included with Windows).
A
Computer Remote Control
A-2 AutoSite User Manual
System Setup
The programmer receives CRC commands and sends responses to the
host computer through an RS-232C port using a 25-pin D connector in
two possible configurations: either DTE or DCE. Only the Handler port
supports CRC operation.
The pin designations for the Handler port are shown in the “More About
Cables” section of Chapter 2. Included in that section is a table of pin
definitions which explain the function of each pin for the two serial port
configurations.
To ensure correct operation of the Handler port with the host computer,
set the parameters for the Handler port according to the host computer
requirements.
Entering CRC Mode
Follow the steps below to enter CRC mode at powerup.
AutoSite enters CRC mode during powerup if it detects equipment
connected to the Handler port.
Note: CRC operations must be run from the Handler port; AutoSite does not
support powerup CRC on the Auxiliary port.
To ensure correct operation of the Handler port with the host computer,
set the parameters for the Handler port according to the host computer
requirements.
Halting CRC
Operations
To halt any command or any ongoing CRC operation, use one of the
following commands from the Handler port. Neither of the following two
commands requires that you press
↵
. Both commands are immediate and
both terminate any preceding command operation.
ASCII
Command Hex Code Description
E
SC
1B Causes AutoSite to unconditionally halt
any operation except a binary transfer.
B
REAK
n/a Causes AutoSite to unconditionally halt
any operation in progress. This includes
all data communications transfers. The
data line must be held in the spacing
condition for 110 ms to 700 ms.
Computer Remote Control
AutoSite User Manual A-3
CRC Default Settings
When CRC mode is entered, certain defaults are set prior to Autosite’s
accepting any commands. The default settings are outlined below:
If you exit remote mode using the
Z
command, AutoSite’s parameters are
set to what they were before
you entered remote mode. If you exit using
C
TRL
+
Z
, AutoSite’s parameters are NOT changed.
Description Setting
Upload/download port Handler port
Data source/destination RAM
Security fuse data (0 or 1) 0
Program security fuse No
Reject option (commercial or single) Commercial
Logic verification option All
Number of verify passes (0, 1, or 2) 2
Fill RAM before downloading No
Illegal bit check option No
Blank check option No
Enable yield tally option No
EE bulk erase option No
Odd/even byte swap for 16 bit option No
JEDEC I/O translate DIP/LCC option Yes
Continuity check option Yes
Compare electronic signature Yes
Host command Blank
I/O address offset 0
I/O format MOS technology (format 81)
Instrument control code (0, 1, 2) 0
I/O timeout 30 seconds
Upload wait 0 seconds
Number of nulls 255
Serial set auto-increment mode No
Programming mode Single device
Total set size 1
Upload EOF delimiter flag Disabled
Download EOF delimiter flag Disabled