J-Link ARM RDI

Support for RDI compatible ARM debuggers

The JLink-RDI software is an RDI interface for J-Link. It makes it possible to use J-Link with any RDI compliant debugger. The package consists of 2 DLLs, which need to be copied to the same folder. In order to use these DLLs, they need to be selected in the debugger. It is a separate item and not included in the J-Link software. For more information on the pricing please check out our Pricelist.

Software download

Supported ARM Debuggers

J-Link RDI can be used with any RDI-compliant debuggers. In the following all RDI compliant debuggers which have been tested with J-Link RDI are listed.

• ARM^® Developer Suite^™ (ADS)
• ARM^® RealView^® Development Suite (RVDS) V3.0 (Since RVDS 3.1 removed RDI support, J-Link RDI will not work with RVDS 3.1)
• IAR Embedded Workbench for ARM (EWARM)
• RealView^® Microcontroller Development Kit (Keil MDK)

For more information about how to use RDI with debuggers listed above, please refer to the J-Link RDI User's Guide (UM08004).

Flash breakpoints

The RDI DLL allows setting software breakpoints in flash memory areas, in the following called flash breakpoints. This makes it possible to set an unlimited number of flash breakpoints, rather than just the 2 hardware breakpoints permitted by the ICE. Setting flash breakpoints is executed very fast using a RAMcode specially designed for this purpose; on chips with fast flash the difference between breakpoints in RAM and Flash is unnoticeable.

More information about flash breakpoints

Configuration

RDI allows various configuartion settings, such as:

• Target system initialization via setup file
• JTAG Speed and scan chain settings
• Enable / disable Flash programming
• Breakpoint settings (use software breakpoints, use flash breakpoints
• CPU specific settings (Endianess, Reset strategy)
• Enable / Disable Logfiles

Commands in the setup file

Example of setup file

/*********************************************************************
*
*    Setup file for J-LINK RDI
*
**********************************************************************
* File:    LPC2294.setup
* Purpose: Setup for Philips LPC2294 chip
**********************************************************************
*/
SetJTAGSpeed(1000);
Reset(0);
Write32(0xE01FC040, 0x00000001); // Map User Flash into Vector area at (0-3f)
Write32(0xFFE00000, 0x20003CE3); // Setup CS0
Write32(0xE002C014, 0x0E6001E4); // Setup  PINSEL2 Register
SetJTAGSpeed(2000);

J-Link SDK

The J-Link DLL is a standard Windows DLL typically used from "C" (Visual Basic or Delphi projects are also doable).
It makes the entire functionality of J-Link available thru the exported functions. The functionality includes things such as halting / stepping the ARM core, reading / writing CPU and ICE registers and reading / writing memory. Therefore it can be used in any kind of application accessing an ARM core.

The J-Link ARM SDK comes with different sample applications in source code which demonstrate the usage of the J-Link DLL API. The following table gives a short overview about the sample applications which come with the SDK:

The standard DLL does not have API functions for flash programming. However, the functionality offered can be used to program the flash. In that case a flashloader is required.

Supported CPU cores

• ARM7TDMI
• ARM7TDMI-S
• ARM720T
• ARM920T
• ARM922T
• ARM926EJ-S
• ARM946E-S
• ARM966E-S
• ARM1136
• ARM1156
• ARM1176
• Cortex-M0
• Cortex-M1
• Cortex-M3
• Cortex-M4

What do I need to write my own program with J-Link?

The J-Link ARM SDK is needed if you want to write your own program with J-Link. The listed files in the table below are included in the J-Link ARM SDK.
For more information on how to obtain a license please contact このメールアドレスはスパムボットから保護されています。閲覧するにはJavaScriptを有効にする必要があります。 .'; document.write(''); document.write(addy_text48034); document.write('<\/a>'); //-->\n このメールアドレスはスパムボットから保護されています。閲覧するにはJavaScriptを有効にする必要があります。

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Supported microcontrollers

J-Link supports programming of the internal flash of the following ARM microcontrollers. We are constantly adding new micros to this list. If the chip you are looking for is not yet on the list, please get in touch with us.

*Currently only supported by J-Flash