15–8
Chapter 15: Using the Agilent 3070 Tester for In-System Programming
Development Flow for Agilent 3070 with PLD ISP Software
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If an overpower error on the
TCK
pin occurs, check the value of the resistors
because they may be too low for the test system to back-drive for an extended
period of time.
Ensure that the test execution order is correct. If the tests are executed out of order,
the programming information is incorrect. Also, if the same test is executed twice
in a row, the target device will be out of sequence and will not receive the correct
programming information.
Ensure that the actual vectors match the expected values for the input pins (TCK,
TMS,
and
TDI).
If they are not the same, the tests may need to be recompiled.
Ensure that the pcf order statement in the test matches the order of the PCF code
generated in
If they do
not match, the order must be changed and the tests recompiled.
If possible, verify that the device is programmed correctly by using the Quartus II
software, the ByteBlaster
TM
II download cable, and the POF that was used to
generate the SVF File. This action is not practical in a production situation, but is
useful during test development and debugging.
If you need to isolate an individual device, you can generate an individual SVF
File for each targeted Altera device in the chain. The process of generating the SVF
Files is explained in
This
process is useful when a verification error occurs and more than one Altera device
is programmed in the chain.
If you still have problems, look at the boundary-scan chain definition. Make sure
that the number of bits for the instruction register are specified correctly for each
device in the chain. If an incorrect number of bits have been defined for any device
in the chain, the programming test will fail.
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Once the test is running smoothly, the board is ready for production programming.
Altera recommends saving the PCF Files and object code for back-up purposes. Use a
compression program to minimize the size of the stored binaries and files.
Development Flow for Agilent 3070 with PLD ISP Software
Programming devices with the Agilent 3070 tester and PLD ISP software is slightly
different than the steps in
shows the development flow using
the Agilent 3070 tester with Agilent's optional PLD ISP software.
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