XJTAG SPEA 3030 Manuel utilisateur
SPEA 3030
XJLink2 Carrier Board
User Guide
Version 1
[email protected] www.xjtag.comXJTAG-3030-Guide-20C-01
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Table of Contents
SECTI N PAGE
1. Introduction ..........................................................................................................3
2. System Overview..................................................................................................3
3. XJLink2-3030 Module Installation .........................................................................4
4. Carrier Board Installation.......................................................................................5
5. Connecting a UUT to the Carrier Board ................................................................5
6. XJDeveloper Project equirements.......................................................................6
7. elay Connection Sequencing..............................................................................6
8. XJLink2-3030 Module Self-Test Configuration ......................................................7
9. Carrier Board Electrical and Operational Specifications.........................................8
10. Handling Procedures ..........................................................................................8
1. Introduction
The SPEA 3030 XJLink2 Carrier Board, hereafter called the Carrier Board, is XJTAG’s recommended
hardware solution for adding XJTAG boundary scan test capability to a SPEA 3030 bed of nails test system.
The Carrier Board is used in conjunction with XJLink2-3030 JTAG controller modules. It can support up to
two independent modules and can operate with either one or two modules fitted. Each module is used to test
a separate Unit Under Test (UUT) – modules cannot be used together for additional access on a single UUT.
2. System Overview
Figure 2 shows a simple block diagram of the Carrier Board and all the required connections. The external PSU
provides all of the power that is needed for both the Carrier Board itself and any connected XJLink2-3030
modules. The USB connection is linked via an on-board hub to the XJLink2-3030 module sockets.
The UUT connections go from the XJLink2-3030 module to the UUT via relays on the Carrier Board. This
ensures that the UUT is completely isolated from the XJTAG system during stand-alone bed-of-nails
testing in the SPEA 3030 ICT test phase.
During XJTAG testing, including boundary scan/ICT integrated testing the relays are controlled to connect
the pins (both signal pins and ground connections) of the XJLink2-3030 module to the UUT.
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XJLink2-3030
Module 1
Relays Relays
XJLink2-3030
Module 2
USB cable
USB Hub PSU
External PSU
PC / laptop
UUT 1 UUT 2
OO
Figure 1 – Carrier Board with no XJLink2-3030 modules fitted
Figure 2 – Carrier Board block diagram
Power connector
USB connector
Stiffening bars
System connector
3. XJLink2-3030 Module Installation
Please follow normal anti-static handling procedures at all times.
Make sure that the board stiffening bars have been fitted (see Figure 1 earlier), and that the Carrier Board
is fully supported when each XJLink2-3030 module is inserted. Failure to do so could result in damage to
the Carrier Board.
emove the screws and washers used for securing the XJLink2-3030 module(s) from the Carrier Board,
retaining them to secure the module after it has been inserted. Carefully align the connectors on the
XJLink2-3030 module with the connectors on the Carrier Board (see Figure 4 for the correct orientation
of the module) before firmly pressing downwards until the module touches the four mounting screw
points on the Carrier Board. einsert the screws taking care to keep the washers in the correct order
(XJLink-3030/fibre washer/metal washer/screw), as shown in Figure 3 below.
Figure 4 below shows a Carrier Board with an XJLink2-3030 module installed. If only a single XJLink2-3030
module is going to be used it is recommended that it be fitted as module 1. However as each module
connects to pre-defined pins on the system connector, the XJLink2-3030 module must be installed in the
correct slot for the fixture being used.
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Figure 3 – Screw and washer assembly for fitting an XJLink2-3030 module
Figure 4 – Carrier Board with a single XJLink2-3030 module installed
4. Carrier Board Installation
The Carrier Board is installed into the backplane of the SPEA 3030 bed-of-nails tester. It requires separate
connections for power and USB. Both of the required cables are supplied with the Carrier Board.
The Carrier Board is designed to be powered by a 24 Volt supply.
Please refer to the SPEA use and maintenance manual for detailed instructions on the physical installation.
5. Connecting a UUT to the Carrier Board
UUTs are connected to the Carrier Board using the 72-pin system connector (J1). As shown in Table 1
below, this connector is split equally between the two XJLink2-3030 modules with pins 1-36 used for the
connections to the module 1 and pins 37-72 used for the connections to the module 2.
The two sets of system connector ground pins (one set for each module) are electrically isolated from one
another. If both modules are being used, all of the ground pins will be connected together via the Carrier
Board system ground when the tests are running.
When fabricating the connections from the UUT to the system connector, use twisted pair cables. Each
active signal is located next to a ground signal on the system connector to make this easy to implement.
To ensure optimum signal integrity all of the ground wires from the twisted pairs should be connected to
ground test points as close to the active signals as possible on the UUT. If this is not done, large loop
areas can occur – see Signal Integrity in Test Fixtures (PDF) for more details.
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XJTAG pin mapping
configuration pin
SPEA system connector (J1)
XJLink2-3030 (module 1) XJLink2-3030 (module 2)
GND Pin 10 2, 3, 6, 7, 10, 11, 14, 15, 18, 19, 22,
23, 26, 27, 30, 31, 34, 35
38, 39, 42, 43, 46, 47, 50, 51, 54, 55,
58, 59, 62, 63, 66, 67, 70, 71
GND Pin 20
Signal 1 Pin 1 1 (I 1_1 - RFU) 37 (I 2_1 - RFU)
Signal 2 Pin 2 4 (I 1_2) 40 (I 2_2)
Signal 3 Pin 3 5 (I 1_3) 41 (I 2_3)
Signal 4 Pin 4 8 (I 1_4) 44 (I 2_4)
Signal 5 Pin 5 9 (I 1_5) 45 (I 2_5)
Signal 6 Pin 6 12 (I 1_6) 48 (I 2_6)
Signal 7 Pin 7 13 (I 1_7) 49 (I 2_7)
Signal 8 Pin 8 16 (I 1_8) 52 (I 2_8)
Signal 9 Pin 9 17 (I 1_9) 53 (I 2_9)
Signal 10 Pin 11 20 (I 1_11) 56 (I 2_11)
Signal 11 Pin 12 21 (I 1_12) 57 (I 2_12)
Signal 12 Pin 13 24 (I 1_13) 60 (I 2_13)
Signal 13 Pin 14 25 (I 1_14) 61 (I 2_14)
Signal 14 Pin 15 28 (I 1_15) 64 (I 2_15)
Signal 15 Pin 16 29 (I 1_16) 65 (I 2_16)
Signal 16 Pin 17 32 (I 1_17) 68 (I 2_17)
Signal 17 Pin 18 33 (I 1_18) 69 (I 2_18)
Signal 18 Pin 19 36 (I 1_19) 72 (I 2_19)
XJLink2-3030 Bank 1XJLink2-3030 Bank 2
Table 1 – Main system connector J1 inout (connects to UUT)
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6. XJDeveloper Project equirements
To use an XJLink2-3030 module in the Carrier Board to run boundary scan tests, the XJDeveloper project
must control the relays at the start of the test sequence in order to make the connections between the UUT
and the module.
The relay connections are activated when the function of pin 1 of the XJLink2-3030 is set to be “Power On”.
This is configured on the pin mapping screen in XJDeveloper.
This means that pin 1 cannot be used for any other function. It should also be noted that although IOx_01
signals are brought out to the system connector these pins are is currently reserved for future use; they
will not be driven high and cannot be used to supply any power to the UUT.
Pin 11 must not be used for its Power On function. On the XJLink2-3030 module this function is again
reserved for future use, it will not cause pin 11 to be driven high and the pin cannot be used to provide
any power to the UUT.
Pin 11 can be used for any other function, as a TAP pin, a general purpose I/O pin or for frequency or
voltage measurement.
7. elay Connection Sequencing
When the XJTAG project is executed, either directly from XJ unner/XJDeveloper or from within SPEA
Leonardo, the relays linking the system connector to the XJLink2-3030 modules are activated in a
sequence.
The first relay to be connected gives a resistive ground connection to prevent any issues that could be
caused by significant voltage differences between the Carrier Board system ground and the UUT ground.
The second relay connection is non-resistive ground to ensure a stable ground connection between the
module and the UUT.
The third step in the sequence connects the IOx_xx signals between the XJLink2-3030 module and the
system connector.
Once the JTAG testing is complete the relays return to their default state with the UUT fully isolated from
the XJLink2-3030 module. The active signals are disconnected first and then both resistive and non-
resistive ground connections are disconnected at the same time.
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8. XJLink2-3030 Module Self-Test Configuration
The relays used to isolate the UUT from the XJLink2-3030 modules also provide a built-in loopback
between the module pins when the Carrier Board is in its default state, i.e. not actively running tests.
This allows a self-test to be run on the XJLink2-3030 modules.
unning the self-test on an XJLink2-3030 module in the Carrier Board will automatically include loopback
testing. The self-test can be launched from within the XJLink Manager or programmatically using the
supplied XJIntegration DLL.
When running from the XJLink Manager, with the XJLink selected, simply click the “Test…” button to
launch the XJLink test dialog.
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The Loop Back Cable Fitted option is selected and greyed out as the Carrier Board will automatically
apply the required loopback.
When running the self-test from the integration DLL use the Test method on the XJLink object specifying a
value of true for the runLoopBackTest parameter.
9. Carrier Board Electrical and Operational Specifications
10. Handling Procedures
In all cases, it is assumed that the Carrier Boards and XJLink2-3030 modules are handled by personnel
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uter dimensions (including connectors) 342 mm length x 369 mm width x 11 mm height
Nominal PSU operating Voltage 24 VDC (± 5%)
Minimum PSU operating Voltage 12 VDC
PSU source External (SPEA 3030 system)
PSU Under voltage lockout value Approximately 10 V
Current consumption (No modules in place) Approximately 17 mA (24 VDC PSU input)
Current consumption (1 module, relays not active) Approximately 41 mA (24 VDC PSU input)
Current consumption (2 modules, relays not active) Approximately 64 mA (24 VDC PSU input)
XJLink2 data connection Single approved USB cable (normal B-type)
Maximum number of fitted XJLink modules 2
System Test connector 72-way double-row right angle 0.1 inch pitch connector
Digi-key # TSS-136-04-L-D-RA-ND
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