Typical 298 Operation; Sample 298 Programmer Operation With Unipak - Data I/O 298 Manual

1.3.1TYPICAL298 OPERATION
COPY (Data Transfers)
To tiansfer data fiom one device to another or from one
RAM location to another, use the COPY key. When you
press the COPY key, the programmer moves data from the
source
{a
device, the programmer RAM, or the serial port)
to the destination (a device, the programmer RAM, or the
serial port); for example, from the programmer data RAM
to a blank device in the socket. At the completion of this
operation, the device is programmed; that is, it contains a
copy of the data in the programmer RAM. The
"source/destination" concept is explained in section
3.5.
There are five basic types of copy operations. These
operations are summarized below and described in detail in
section
3.
• Load RAM with Master Device Data- transfers
programming data from a master device and to the
programmer RAM. When the data transfer is complete,
the 298 calculates and displays the sum-check (see
Glossary for definition) of the loaded data.
• Load RAM from Serial Port-translates data received at
the serial port and transfers it to the programmer RAM.
When completed, the programmer calculates and
displays the sum-check of the data. If a sum-check has
been sent with the data from the serial port, the
programmer will compare the two and signal an error if
they do not match.
• Program-puts the data in the programmer RAM into a
device. Programming is automatic, starting with an
illegal-bit test and a blank check to ensure that the
device can be programmed. Data is then programmed
into the device in the socket one byte at a time. This
continues until all data bytes have been programmed
into the device. After programming is completed, the
data in the device is automatically compared with the
RAM data to ensure correct programming.
• Output RAM to Serial Port-translates data from the
programmer RAM and transfers it to the serial port.
• Block move-rearranges blocks of data within RAM.
VERIFY (Data Verification)
The VERIFY key is used to make a byte-by-byte
comparison of data in two locations, one referred to as the
"source" and one as the "destination"; see section
3-5
for
details. There are two types of Verify operations.
• Verify Device-compares data twice from the device
(the destination) byte-by-byte with the data in RAM (the
source). On the first pass (first comparison), the 298
checks the parameters by lowering V
cc
within the
manufacturer's specified lower level. On the second
pass,
Vee
is iaised to the upper level specification
range.
• Verify RAM from Serial Port- compares incoming data
from the serial port byte-by-byte with the data in RAM.
EDIT (Editing Data)
The EDIT key allows you to view and change data at
specified RAM addresses. Section 3 provides specific
details.
SELECT !Select Functions)
The SELECT key allows you to change certain operationai
parameter default values, perform RAM data manipulations,
and access certain less frequently used operations. These
operations are referred to in this manual as Select
Functions. Detailed Select Function information, including
operation, is located in section
3.8.
1.3.2 SAMPLE 298 PROGRAMMER OPERATION
WITH UNIPAK™
The 298 is a versatile tool for programming data into blank
devices. Figure 1-3 illustrates the process of programming
data from RAM into a blank device by using the
programmer's front panel keyboard. In this example, the
source of data is a master device; however, data can also
be input from the programmer keyboard or through the
serial port.
When using a master device as your source of data, you
need only a few steps to program this data into a blank
device. With the appropriate pak installed (section 2.2) and
the machine powered on (section 2.4), the steps you need
to perform this operation are provided beiow and
diagrammed in figure 1-3.
WARNING
Refer to the safety instructions of
section 2.4 before powering up the
298.
1. Press: COPY
+
DEVICE
+
RAM
+
START.
2.
Enter the family and pinout codes for your device.
These codes are included in your Pak manual.
3. Insert the master device into the appropriate Pak socket.
4. Press START.
5.
Remove master device from the socket.
6.
Press: COPY
+
RAM
+
DEVICE
+
START. If the
device to be programmed has different family and
pinout codes from the master, enter the correct codes.
Otherwise, go to the next step.
7. Insert the blank device into the appropriate Pak socket.
8. Press START.
Step 8 will initiate an illegal-bit and blank check test (see
Glossary) of the device followed by the programming and
verify sequence. The programmer will signal you when the
device has been programmed.
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