The Basics:
Whats onTAP?
onTAP is a robust boundary scan tool that provides the user
with a full set of development and test capabilities. onTAP
is designed and organized in a logical manner, reflecting the
natural progression of tasks related to development and test.
The notebook tab order of the screens help to ensure the creation
of thorough, accurate test solutions in a user-friendly environment.
How much time will I need to spend learning about onTAP?
onTAP will require considerably less time to learn than almost
any other full-featured boundary scan product. In most instances,
we can have a user up and running a standard interconnect test
within an hour.
Why is onTAP so affordable?
onTAP does not require expensive, customized hardware to run.
Instead, onTAP uses industry standard, industry tested parallel
port programming cables. These cables are readily available
from some of the most well-known and trusted names in the industry:
Altera, Lattice, Memec, Xilinx, for example. The cost of these
cables is low, yet the reputations behind them is high, which
is why we opted to incorporate them into our product.
What hardware is required to use onTAP?
An industry-standard, industry-tested parallel port programming
cable is all that is required to run onTAP. These cables may
be purchased directly from the manufacturer. The following link
offers information on where to find these cables: http://www.flynn.com/products/ontap/ProgrammingCables.php
Flynn Systems offers its own High Performance Cable that allows
a user to test up to four chains simultaneously. In addition,
Flynn Systems has an Expander Box that allows four cables to
run simultaneously.
What files are required?
A BSDL file is required to run any tests. A board netlist is
also required to test any interconnect and cluster tests.
What is a BSDL file?
A BSDL file is the Boundary Scan Description Language
file, which is created by the manufacturer of the boundary scan
device. The BSDL provides a necessary map of the device for
anyone or anything trying to access the device. The file is
usually provided with the device; however, this information
can usually be found on most manufacturers websites.
What other filename extensions can be used?
bsd, .bsdl, and .bsm
What is a netlist?
A netlist is simply a map of the PCB. It describes what devices
are plugged into the board, and the specifics of the device
types. For example, if your board has ten devices on it, and
only four are JTAG devices, any boundary scan test ware will
need to know which devices are going to be tested, and which
need to be transparent. The netlist provides that detailed information.
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