2500_Users_Manual.pdf - 第94页
Task s and Ki ts ProM aster 25 00 User Manua l 3-19 Figure 3-12 Comma nds Availa ble un der Se tup
Tasks and Kits
3-18 ProMaster 2500 User Manual
Automatic RAM Fill
When a Task is run and it calls for a data file to be downloaded into RAM,
the 2500 will fill RAM with a specific data pattern depending on how this
field is set.
•
None
—RAM is not changed from its current state. The file will
download and write over the current contents.
•
Default
—RAM is initialized to the unprogrammed state for the
device type selected. This will not always be the same value since
some devices are all 0s and others are all 1s in their blank
(unprogrammed) state.
•
Specific
—When selected, a second field appears on the screen,
allowing you to choose a 2-digit hex value to use when filling RAM.
The other parameters listed in the Memory Device Parameters dialog box
are not normally used when programming with a 2500. Refer to
TaskLink’s online
Help
for a description of these parameters.
Data Sumcheck
This option enables TaskLink to perform a check on the integrity of the
data in RAM. We strongly recommend that you set this option to help
reduce programming errors.
When the sumcheck of the programmed device is entered in this field,
TaskLink compares it to the RAM sumcheck after downloading a file or
loading from a master device. If the sumchecks do not match, TaskLink’s
red warning box displays both sumchecks, and the Task stops. TaskLink
also monitors the RAM for any changes during programming.
This command is available only through the
Edit Task
dialog box. From
that box, select
<More>
and the parameter is displayed on the
More
Task Parameters
window.
Other TaskLink Parameters
Several non-mandatory parameters for both memory and logic devices
are available from other pull-down menus on the main screen. The next
sections describe these menus in the left-to-right order that they are
displayed on TaskLink’s main screen.
TaskLink supports a family of Data I/O programmers, each with unique
requirements. Only those commands that are used with the 2500 are
described in this manual. Information on all TaskLink commands is
available by pressing
F1
to invoke TaskLink’s online Help.
Setup Menu Options
Most of the available choices from this pull-down menu have been
described in previous sections. The
Select Devices...
and
Select Process...
operations (see Figure 3-12) are the same commands that were selected in
the
Edit Task
dialog box to create a Task. Use these selections after a Task
has been loaded to select a device or process not included in the Task. Use
these commands when you want to run a job once and do not want to
create a new Task to do it.
Tasks and Kits
ProMaster 2500 User Manual 3-19
Figure 3-12
Commands Available under Setup
Tasks and Kits
3-20 ProMaster 2500 User Manual
Logging Programming
Statistics
Use the
Session Data Logging...
feature to automatically record statistics
for each Task run in a file with a
file_name.log
extension. From the
TaskLink main screen, press
Alt
and
S
to select the
Setup
pull-down
menu. Highlight
Session Data Logging...
and press
↵
. Figure 3-13 shows
the relationship between the Task Statistics screen (that appears by
default at the end of each Task) and the Session data logging file.
General Parameters
Most Tasks are run using the default values defined in this box. The
parameters that might be changed for operation with the 2500 are
described below. Other parameters displayed are intended to be used
with other products supported by TaskLink. Information on these
commands is available by pressing
F1
to invoke TaskLink’s online Help.
Only the commands used with the 2500 are described below.
Verify Passes
—Device manufacturers specify the high and low V
CC
voltage at which their devices will operate and output accurate data. The
2500 defaults to
two verify passes.
The device’s V
CC
pin is set to the
specification’s high V
CC
and the 2500 verifies that all bits in the device
compare with the RAM data. If this test passes, the 2500 sets V
CC
to the
low value and verifies each fuse in the device a second time. Selecting
One
directs the 2500 to test the device once using the nominal V
CC
level (+5V).
Custom Commands
— This is an optional CRC command field to control
the programming electronics with some special command that is not
supported by TaskLink. Refer to the Programming Electronics Computer
Figure 3-13
Log File Format Compared to Task
Statistics Screen
-
07-02-1993 17:12
?
LOGIC TASK
16v8.jed
0000B45C
LATTICE 16V8/A/BPLCC
CONT/IBC/PROG/TEST
73,0,1,1,0,0,0,0,0,0,0,0,1,1,0
?,?
Record Separator
Date & Time
Optional Session I.D. Name
Task Name
Data Source (Filename)
Programming Data Sumcheck
Device Type
Selected Process
Programming Results
First & Last Serial Numbers
filename.log
1959-1
(Insert Task Statistics Screen
and add leader line)