Data I/O UniSite-xpi, User Manual

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A. Using Modules
A-28 UniSite-xpi User Manual
13. The action symbol on the UniSite screen will rotate. When the
operation is finished, a message will appear. “PASS” will appear on
the SetSite screen above all sockets whose devices have been
successfully programmed.
14. The devices are now programmed. Pull the socket lever to the open
position and remove the eight devices.
15. If you want to program eight more devices with the same data,
simply repeat steps 11 through 14.
Set Programming
This example shows how to load data from a master (already
programmed) 27512 device (containing a whole 64K set of data) into
RAM, and then set program that data into eight blank 27256 devices (4
sets). Because the 27256 has half the memory of the 27512, it will require
two 256s to store an entire SET of data from a 512. The set size, therefore,
equals two. If eight devices are programmed, four sets (of two 27256s)
will be produced.
The 27512 is a 64K x 8 part: it has 64K (or 10000 hex) addressable
locations. The 27256 devices have 32K (or 8000 hex) addressable
locations. So that you do not have to worry about calculating and
entering memory block parameters for two different types of devices,
UniSite will automatically alter device parameters when the devices are
ready to be programmed.
1. Power up UniSite with the SetSite module installed.
2. Using the Select Device menu, select any 27512 EPROM from the
manufacturers’ lists. When you have chosen a part, UniSite will
return to the Main menu.
3. Type L to go to the Load Device menu. The Load Gan/Set of Device
screen should then appear. If it does not, press the PF4 key to display
the different Load screens until the correct one appears. The
“READY” indicator on SetSite’s panel will illuminate when UniSite
is ready.
4. Make sure the device block size window displays 10000, so that the
device block size equals the selected device’s size.
5. Make sure the User data size window displays 10000 and the Data
word width shows 8. The set size will be 1, meaning that the entire set
can be programmed into one device. A “0” appears in socket number
one, next to the starting Address parameter, meaning that data will
be loaded from socket one beginning at user memory address 0.
Notice that asterisks appear inside the other device sockets. It is not
possible to “gang-load” data into RAM. Only one device’s data may
be loaded at a time with a set size of 1.
6. Insert the master 27512 device into SetSite’s socket number one. The
device should be inserted bottom-justified: no socket pins below the
device. Push the socket lever up to the CLOSED position.