SEGGER - The Embedded Experts - Adapters
Page 1 of 6
J-Link Adapters
The following adapters are available for J-Link:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
J-Link
JTAG Isolator
SWD Isolator
Supply Adapter
Needle Adapter
6-pin Adapter
RX Adapter
RX FINE Adapter
19-pin Cortex-M Adapter
9-pin Cortex-M Adapter
2mm Adapter
Altera Adapter
ARM-14 Adapter
Measurement+Patch Adapter
Microchip Adapter
Mictor 38 Adapter
PPC 14-pin Adapter
Signal Smoothing Adapter
14-pin TI Adapter
TI-CTI-20 Adapter
J-Link JTAG Isolator
The J-Link JTAG Isolator can be connected between J-Link and any ARM-board that uses the standard 20-pin JTAG-ARM connector to provide
electrical isolation. This is essential when the development tools are not connected to the same ground as the application. It is also useful to
protect the development tools from electrical spikes that often occur in some applications, such as motor control applications. Another
typical field of application is development of products with sensors or other analog circuitry, in which case the target hardware is protected
from electrical noise originating from the development PC.
The J-Link JTAG Isolator is compatible with
J-Link BASE
,
J-Link PRO
,
J-Link ULTRA+
,
J-Link PLUS
and
Flasher ARM
.
J-Link SWD Isolator
The J-Link SWD Isolator can be connected between
J-Link
and any ARM-board that uses the standard 20-pin 0.1" male connector to provide
electrical isolation. This is essential when the development tools are not connected to the same ground as the application. It is also useful to
protect the development tools from electrical spikes that often occur in some applications, such as motor control applications. Another
typical field of application is development of products with sensors or other analog circuitry, in which case the target hardware is protected
from electrical noise originating from the development PC.
The J-Link SWD Isolator is compatible with
J-Link BASE
,
J-Link PRO
,
J-Link ULTRA+
,
J-Link PLUS
and
Flasher ARM
.
J-Link Supply Adapter
The J-Link Supply Adapter provides a fixed I/O voltage level for VT
Ref
. It eliminates the need to connect VT
Ref
(pin1) to the target.
In general, the target provides its I/O voltage level (VT
Ref
) on pin 1 to the debug probe insuring the debug probe uses the right I/O voltages
and avoiding damage of the target debug pins. If signal VT
Ref
is not desired on the target board it can be omitted by using the J-Link Supply
Adapter, manually setting the I/O voltage. Default I/O voltage is 3.3 V. For increased flexibility the J-Link Supply Adapter can adapt to other
target voltages in the range from 1.2 V to 5.0 V by replacing a single resistor on the adapter.
The Supply Adapter can be inserted between J-Link and the target maintaining a 1:1 connection of all debug signals (except VT
Ref
/pin 1). It
has a standard 20-pin 0.1" socket towards the J-Link debug probe and a standard 20-pin 0.1" header on the target side. The main reason
for using the adapter is to reduce the number of connections to the target, especially in production environments. It can also be used with
Flasher ARM. For dual wire debug interfaces such as SWD, typically only 3 wires are still required: SWDIO and SWDCLK as well as GND. For
single wire interfaces such as SPD, the number of connections is reduced to 2 accordingly.
The J-Link Supply Adapter is compatible with
J-Link BASE
,
J-Link PRO
,
J-Link ULTRA+
,
J-Link PLUS
and
Flasher ARM
.
Page 2 of 6
Block diagram of the J-Link Supply Adapter
J-Link Needle Adapter
The J-Link Needle Adapter has been designed to connect J-Link to a PCB which does not
come with a mating connector or programming header. The designed pattern with 3 locating
pins ensures, that the adapter can not be connected the wrong way.
The needle adapter allows manufacturers to save costs and space on their PCBs since there
is no need to provide the PCB with additional connectors.
It adapts from the 20-pin 0.1'' JTAG to a 10-pin needle connector.
J-Link 6-pin Adapter
The J-Link 6-pin Adapter has been designed to connect J-Link to a PCB which does not come with
a mating connector or programming header. The designed pattern with 3 locating pins ensures,
that the adapter can only be connected in one way.
The 6-pin Adapter allows manufacturers to save costs and space on their PCBs since there is no
need to provide the PCB with additional connectors.
It adapts from the 20-pin 0.1'' JTAG to a 6-pin needle connector.
J-Link 6-pin Adapter is compatible with
J-Link BASE
,
J-Link PRO
,
J-Link ULTRA+
,
J-Link EDU
,
Flasher ARM
,
Flasher RX
,
Flasher PPC
and
Flasher Portable
.
Please note, that the 6-pin Adapter supports SWD only. If JTAG support is required, use the
J-Link
Needle Adapter
instead.
J-Link RX Adapter
The J-Link RX Adapter allows connections between J-Link and target hardware which comes with the Renesas RX600/200/100 series MCUs.
The J-Link RX adapter is able to optionally power the connected target hardware. 3.3V or 5V supply voltage can be selected using a Jumper.
The target is supplied via the VTref connection when the supply option is jumpered.
Page 3 of 6
J-Link RX FINE Adapter
The J-Link RX FINE Adapter allows connections between J-Link and Renesas RX based target hardware that supports the Renesas
FINE interface (RX63xx, RX2xx, RX1xx CPUs).
J-Link 19-pin Cortex-M Adapter
The J-Link 19-pin Cortex-M Adapter allows JTAG, SWD and SWO connections between J-Link and Cortex-M based target hardware systems.
It adapts from the 20-pin 0.1'' JTAG connector to a 19-pin 0.05'' Samtec FTSH connector as defined by ARM.
The J-Link 19-pin Cortex-M Adapter may also be used to connect J-Link to a non Cortex-M target as far as the target connector uses the
same pinout as shown below.
By default, TRST is not connected, but the Cortex-M Adapter comes with a solder bridge (NR1) which allows TRST to be connected to pin 9
of the Cortex-M adapter.
J-Link 9-pin Cortex-M Adapter
The J-Link 9-pin Cortex-M Adapter allows JTAG, SWD and SWO connections between J-Link and Cortex-M based target hardware systems. It
adapts from the 20-pin 0.1'' JTAG connector to a 9-pin 0.05'' Samtec FTSH connector as defined by ARM.
The J-Link 9-pin Cortex-M Adapter may also be used to connect J-Link to a non Cortex-M target as far as the target connector uses the same
pinout as shown below.
By default, TRST is not connected, but the Cortex-M Adapter comes with a solder bridge (NR1) which allows TRST to be connected to pin 9
of the Cortex-M adapter.
J-Link 2mm Adapter
The J-Link 2mm Adapter adapts from the standard 20-pin J-Link connector to a 20-pin 2mm-pitch connector. The J-Link 2mm Adapter is a
1:1 adapter, since the pinout of the 2mm pitch connector is identical to the standard 20-pin J-Link connector.
Page 4 of 6
Pins 14, 16, 18, 20:
On some models like the high-end model J-Link
PRO, these pins may not be connected to GND
but are reserved for future use/extension. In
case of doubt, leave open on target hardware.
J-Link Altera Adapter
The J-Link Altera Adapter connects to the 10 pin Altera JTAG connector providing debug access to FPGA based MCU cores like the dual-core
ARM Cortex-A9 in the Cyclone V devices.
J-Link ARM-14 Adapter
This adapter allows to use J-Link with ARM7/9/11 targets using this 14-pin 0.1" mating JTAG connector defined by ARM.
The 14-pin connector, though defined by ARM as an alternative to the 20-pin connector is not widely used on modern eval boards.
J-Link Measurement+Patch Adapter
The J-Link Measurement+Patch Adapter provides test points for all debug signals to allow easy access for test probes. It has a standard 20-
pin 0.1" socket towards the J-Link debug probe and a standard 20-pin 0.1" header on the target side and can directly be inserted between
the J-Link and the debug cable maintaining a 1:1 connection of all debug signals. For increased flexibility VTref on pin 1 and the target
supply voltage on pin 19 can be interrupted by means of two jumpers.
The J-Link Measurement+Patch Adapter allows easy customized wiring between J-Link and targets that do not provide a standard debug
connector that fits to any of the adapters available for J-Link (e.g. the Discovery Boards from ST Microelectronics). The wiring between J-
Link and the target is done via colored jumper wires that are shipped with the J-Link Measurement+Patch Adapter.
J-Link Microchip Adapter
The J-Link Microchip Adapter allows debug connections between J-Link and target
hardware which comes with Microchip PIC32 series MCUs. It supports the RJ12 modular
debug connector as specified by Microchip as well as the 14-pin dual row MIPS debug
header and the Microchip 6-pin single row PICkit connector (options, can be soldered by
customer on demand).
Pin
1
2
3
4
#MCLR
VDD
GND
Signal
DIO/PGD/RB7
Page 5 of 6
Note that the delivered modular cable will invert the pin order as shown in the pinout
below.
5
6
CLK/PGC/RB6
NC
Schematic
J-Link Mictor 38 Adapter
The J-Link Mictor 38 Adapter connects to the 38 pin Mictor connector. The pin out follows the single target connector pinout specification as
defined in the ARM "ETM Architecture Specification".
The adapter connects the GND and JTAG pins to their counterparts on the 20-pin J-Link. Trace pins present on the Mictor connector are not
connected as they are not present on the 20-pin J-Link connector. The 38-pin Mictor side of the adapter can be plugged either directly into
the target side or via trace cable. The J-Link side connects to J-Link via 20-pin flat cable.
If you need trace capability, take a look at the
J-Trace Cortex-M
and
J-Trace ARM
Debug + Trace Probes.
Pin
5
9
11
12,14
13
15
17
19
21
Signal
GND
nRES
TDO
VTref
RTCK
TCK
TMS
TDI
TRST
J-Link PPC 14-pin Adapter
The J-Link PPC 14 pin Adapter allows JTAG connections between J-Link and target hardware which use an MCU with Power Architecture or
PowerPC. It adapts from the 20-pin 0.1'' to a 14-pin 0.1'' JTAG connector.
Note: J-Link support for PowerPC is not yet available.
Subscribe to J-Link software notification in order to be informed as soon as PowerPC support is available
J-Link Signal Smoothing Adapter
The J-Link Signal Smoothing Adapter can be inserted between the J-Link debug probe and the debug target to overcome signal integrity
issues. Depending on target load capacitance JTAG signals might be affected by overshoot and ringing. In this case user adjustable series
resistors (default 47R) allow for damping critical signal rise/fall times leading to improved signal integrity.
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
