If you're going to use your debugger strictly for personal, non-commercial projects, such as publishing open source designs that you're not selling, then you should get this EDU version! It's the same but significantly cheaper.
On the other hand if you're making money, or plan to make money off your project, go and pick up the SEGGER J-Link BASE - JTAG/SWD Debugger.
Doing some serious development on any ARM-based platform, and tired of 'printf' plus an LED to debug?
A proper JTAG/SWD HW debugger can make debugging more of a pleasure and less of a pain. It allows you to program your devices at the click of a button, read or write memory addresses or registers on a live system, temporarily halt program execution at a given location or condition, and much more. Essentially, it's a direct window into what's going on inside your MCU at any given moment, giving you a level of access and control that's not easy to replicate with other debugging methods.
Of the dozens (and dozens!) of debuggers out there (we have literally drawers full of them!), we chose the J-Link for a number of reasons:
- It's USB based and uses a high-speed MCU internally, not an FTDI convertor like most low cost debugger. More debugging, less waiting!
- It support both JTAG (ARM7/9/11) and SWD (ARM Cortex), and has you covered for any core: ARM7/9/11, Cortex-A5/A8/A9, Cortex-M0/M0+/M1/M3/M4, Cortex-R4
- It's toolchain, IDE and vendor neutral, so you only need to buy one tool for all of your ARM needs and be done with it forever:
- Support GDB-based debugging and flash programming on Linux, Windows and the Mac via the free GDB Server
- Supports most major IDEs, including Keil, IAR Atmel Studio, Crossworks for ARM
- It includes flash-programming algorithms for most MCUs, and Segger is very pro-active about updating their drivers to support the newest chipsets.
- It just works, and keeps on working, and it'll be there for you in several years time.
The J-Link is fast. Stepping through breakpoints and reading memory addresses is quick, as is programming the flash memory on the chips. It's real strength, though, is that it's so vendor and tool neutral. Most chip vendors today provde low cost (or free) tools, but they also lock you into their chips and force you to accept the choice they've made for you. Segger's J-Link is a nice change in that respect, since you can be reasonably certain it will work with any chip, in any major toolchain, and you're free to change camp (or OS or IDE) without having to buy a new debugger every time.
Why Would I Want This?
You can do a lot of basic debugging with just printf and an LED, and you may not need a HW debugger to get started, but once you start to working on more complicated projects, you hit a debugging wall pretty quickly.
Your chip might be ending up in the HardFault handler, for example, but without a debugger it can be very hard to trace back exactly what is causing the problems. A debugger allows you to set 'breakpoints' in your code, where execution will temporarily stop, and you can check the value of memory or peripherals at that point in time, and then 'single-step' through your code line by line, executing your program until you find the place that causes your fault. There's a lot more to debugging than simple breakpoints, but you can often solve in a few minutes with breakpoints what would take much longer with printf and instrusive blocking mechanisms you insert into your code without a debugger.
You may use the J-Link EDU for non profit educational purposes only! Non-profit educational purposes means that you may not use the J-Link EDU and its J-Link software.
What does this mean? Basically, if you're making money (or plan to make money) off your project, you'll need to order the full commercial version, or find a different debugger that suits your needs and budget better. But if you're working on personal, non-commercial projects, such as publishing some open source designs you're not selling yourself, you're good. You don't need to be a student, and you can even be a paid engineer during the week, using this on the weekend for personal non-commercial projects. As long are your intentions are non-commercial, the J-Link EDU is an excellent choice!
We do have the commercial version of the J-Link, please support SEGGER's quality engineering and respect their generosity by purchasing the professional/commercial version of the J-Link, its still a great deal!
Shipping rates Australia wide
|Express Post*||Regular Post||Courier|
|Up to 500 gms||$9.79||$6.75||$15.99|
|Up to 3 kg||$15.00||$11.40||$15.99|
|Up to 5 kg||$30.00||$22.11||NA|
|Above 5 kg
||Estimated at checkout|
Shipping rates to New Zealand
|Australia Post international service|
|Up to 500 gms||$18.00|
|Up to 1 kg||$30.00|
|Above 1 kg
||Available on request|
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- Add products in the shopping cart and head to the checkout page to estimate the shipping.
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