XJDeveloper 可用于JTAG器件（例如CPLD,FPGA）与非JTAG器件(例如 EEPROM,Flash)之间的编程 。
XJEase — 灵活的、高级的、测试描述语言
XJDeveloper contains a software debugger for use during XJEase development and prototyping.
This debugger allows you to:
以器件为中心 — 可重用测试
XJDeveloper可以用来测试和编程非JTAG器件，包括Flash、 RAM、 FIFO 阵列, IIC器件, SPI器件和网络控制器。
能被XJTAG自动识别的网表格式包括： EDIF 2 0 0, RINF, Protel, PADS-PCB, Cadence Allegro, P-CAD, Genrad, BoardStation (Mentor), Zuken, Protel V2 和50多种格式。如果不能识别用户的网络表格式，我们将帮助转换并为用户提供未来版本的支持。XJTAG Support。
Testing with no netlist
If you don’t have the netlist for a board you need to test, XJDeveloper allows you to base a test system on the BSDL files for the JTAG devices on the board rather than forcing you to use a netlist. The system can then automatically learn from a golden board the connections between the JTAG devices for use during connection test. You can also add additional non-JTAG device such as RAM, flash or devices on peripheral busses such as I²C and SPI, in order to extend the test coverage.
Frequently asked questions
What is included with XJDeveloper?
- Test development capabilities
- BSDL file editor/viewer
- JTAG Chain Debugger and signal integrity testing
- Library of non-JTAG testable devices
- Library of logic devices and truth tables
- XJEase language – ability for user to create new tests/modify library tests
- Ability for user to add connections/remove connections from netlist
- Schematic viewer
- Layout viewer
- XJRunner – integrated in XJDeveloper and as separate XJRunner application
- XJDemo board & tutorials
What options are available with XJDeveloper?
- XJDeveloper is available with or without XJAnalyser functionality.
- XJDeveloper is available with or without XJFlash test generation capability.
- XJDeveloper can work with hardware licensing or with network licensing (minimum hardware purchase applies).
What files / data do I need to start working with XJDeveloper?
The minimum needed is the BSDL file for at least one of your JTAG devices (available from the device manufacturer).
Results will be much better and test coverage easier to achieve if you have a netlist for the board you wish to test. This is usually exported from the board design (EDA) tools.
If your EDA tools support export in ODB++ format, by using this as the netlist, XJDeveloper will also have access to layout information on your board to improve how it shows you problems.
If you have a Bill of Materials (BoM) for your design, XJDeveloper can use the information in it to help you improve your setup and save time in deciding how to categorise devices.
Providing the schematics (in PDF format) to XJDeveloper also allows it to help better during board setup.
You do not need the board you wish to test in order start the setup, though you will want to verify your tests on real hardware at some stage.
What netlist formats does XJDeveloper support?
Our recommendation is that customers use ODB++ board data because this contains both netlist and layout information and almost all CAD tools can generate ODB++. However, XJDeveloper supports over 80 formats of netlist, so if you do not have ODB++ we simply suggest you try using yours. If XJDeveloper does not recognise it please send it to us, we will gladly convert it to one that we can support, and we will also add support for your format into the next release of XJTAG software.
Can I update the netlist on an existing project?
Yes, simply edit the board to use the new netlist. XJTAG will migrate all the existing setup to the new netlist.
I have modified the board during bring-up – can I represent this in XJTAG?
XJTAG has the ability to add connections (e.g. wire mods) to the circuit model, or to disconnect parts of the circuit (e.g. cut tracks) in addition to being able to mark devices such as resistors and connectors as fitted or unfitted.
How easy is it to write my own tests?
We think it is very easy. But mostly you won’t have to, because the XJEase library contains a large number of common devices such as RAM, Flash, etc.
The XJEase language is designed so that you work by thinking about the device you are testing, so if for example you want to set the nOE pin high on a chip, that is how it is described in XJEase (SET nOE := 1; ) No need to worry which JTAG device the pin is connected to, or how it is connected, XJTAG works that out for you.
The XJEase language means you can do more than just play back a pre-defined set of vectors – you can use IF or WHILE statements to make decisions during tests, and even call other programs from within the tests.
The library of tests provided with XJEase contains a wide selection of devices, and you can see all of the XJEase source code for these tests. So if you want to find out how to do something for a new device, look in the tests we supply for a similar device, and copy or modify it.
The XJEase library also contains functions for using protocols such as I2C or SPI, and useful functions for tasks such as reading programming information from files in various formats, doing maths operations, etc.
What test coverage can I get using XJTAG tools?
The best answer we can give is to suggest you try XJTAG and let XJDeveloper generate a test coverage report for your circuit. XJDeveloper can also give some indications of parts of the board which are not tested or for which testing could be improved.
If you would like to take advantage of a free DFT Coverage Review of your initial design, our experienced test engineers will be happy to provide an analysis of boundary scan testability and make suggestions for improvements to maximise test coverage. Contact us now.
- Intel® Core i3, i5, i7 processor or equivalent (any generation)
- Microsoft® Windows® 7, Windows 8.1 or Windows 10 (32 or 64 bit)
- 4 GB of RAM
Upgrades / Support / Maintenance
Can I upgrade to add XJAnalyser or XJFlash later?
Yes, upgrading is simple and our costs are transparent with no penalty for adding functionality at a later date.
What support does XJTAG offer?
XJTAG offers technical support by email and telephone during UK office hours.
Where appropriate we will use internet meeting/telephony software to view problems directly on a customer’s PC, or to demonstrate the use of a feature by showing a PC desktop to the customer.
Customers with a support + maintenance agreement have access to both bug-fix software releases and new-feature releases.
In the event of a fault developing in XJTAG’s hardware XJTAG will replace or repair the unit and will work with the customer to minimise downtime (e.g. by loaning a unit during the repair).
Free evaluation / Licensing
What are the differences between the trial version and the purchased product?
There is no difference between the functionality of the purchased product and the free evaluation version. We provide full technical support by telephone and email, to help with the set-up or troubleshoot any issues during your trial. You will also have access to XJTAG’s device test libraries and latest software upgrades, during your 30-day evaluation period.
Can I convert my trial version to a purchased product?
Yes. If you already have XJDeveloper for evaluation, you can continue using it without interruption by purchasing the full licence. Contact your XJTAG distributor to make a purchase and have your licence extended.