Head office Germany
US office
                   


Development Tools
J-Link
Adapters

J-Link Adapters

The following adapters are available for J-Link:

 

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.
This product is compatible with J-Link, J-Link Pro and Flasher ARM.

 

More info...
Pricing

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.

More info...
Pricing

J-Link RX Adapter

The J-Link RX Adapter allows JTAG connections between J-Link and target hardware which comes with the Renesas RX600 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.

 

More info...
Pricing

J-Link 19-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 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.

Pricing

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.

 

Pricing

 

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.




Pricing

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 TI 14-pin Adapter

The J-Link TI 14 pin Adapter allows JTAG connections between J-Link and target hardware which use a TI MCU and provides a 14-pin connector (e.g. the BeagleBoard with an OMAP3530 on it), defined by TI. It adapts from the 20-pin 0.1'' to a 14-pin 0.1'' JTAG connector.

J-Link TI-20-CTI Adapter

J-Link-TI-20-CTI Adapter adapts from the standard J-Link 20-pin 0.1" target connector to TI CTI-20 connector.
This adapter allows to connect J-Link to eval boards with TI MCUs that are equipped with a TI CTI-20 connector, e.g. the AM335x evaluation module.
As can be seen in the image below, the key on pin 6 ensures, that the adapter can not be connected the wrong way.

The adapter is compatible to all available J-Link and J-Trace models.


 

Please note, that the J-Link-TI-20-CTI Adapter can only be purchased bundled with a J-Link or J-Trace.

The 5V JTAG adapter extends the output voltage range of J-Link  to 5V. Most targets have JTAG signals at voltage levels between 1.2V and 3.3V. These targets can be used with J-Link ARM without a 5V adapter. Higher voltages are common primarily in the automotive sector.
Note: Current J-Links are 5V tolerant, but output levels are limited to about 4V (See J-Link specifications for more details).
These output levels are sufficient for most 5V targets, meaning that current J-Links can be used with most 5V targets without adapter. The adapter is only required for 5V targets that require (input) signals above 3.3V.

 

Technical data:

  • 20 pin connector, female (plugs into J-Link)
  • 20 pin connector male, for target ribbon cable
  • LED shows power status
  • Adapter is powered by target
  • Power consumption < 20 mA
  • Target supply voltage: 3.3V - 5V
  • Max. JTAG-frequency: 12 MHz


Compatibility note

The J-Link ARM 5V JTAG adapter is compatible to J-Link ARM revisions 5 or newer.

Usage

The 5V JTAG adapter should be plugged directly into J-Link ARM with the 20 pin female connector. The target ribbon cable is then attached to the 20 pin male connector of the adapter. The picture below shows a J-Link ARM with a connected 5 volt adapter.

Pricing

back to top

© 2012, www.segger.com, All rights reserved.