If you still didn’t heard CooCox IDE is complete FREE ARM Cortex development environment with editor, compiler, debugger. It’s made by few open source fans who work in Wuhan University in China in their spare time.

CooCox IDE does absolutely the same what other expensive commercial IDEs offer, so not wonder that it’s platform of choice for many big names in the semiconductor industry.

ARM-JTAG-COOCOX is an ARM debugger based on CoLinkEX design. It is meant to work out-of-the-box with the free CooCox IDE.

It can also be used with Keil MDK and IAR EW IDEs via external plugins, but the driver for IAR is still not perfect knowing from our own experience with ARM-JTAG-EW how cooperative IAR is for their drivers we suspect the CooCox team made the same we did – their driver is based on reverse engineering.

ARM-JTAG-COOCOX is fast and affordable and the ability to debug via both SWD (Serial Wire Debug) and JTAG interfaces are the key points.

Today at 17.00 o’clock our local Bulgarian time (GMT+3) we will post on Twitter our question.

You have one hour to reply to our tweet with the correct answer.

At 18.00 o’clock we will count the correct answers and ask to generate random number in range then anнounce the winner and ship the board by airmail next Monday.

Good luck!



CooCox is highly integrated and free ARM Cortex-M0-3-4 development IDE with compiler, debugger and lot of code examples.

CooCox supports our OpenOCD ARM-JTAG-TINY-H, ARM-USB-OCD-H and ARM-JTAG-SWD ARM-JTAG-2010 adapters, so our customers could work with CooCox IDE with our current JTAGs.

What we missed in our product range though was the designed by CooCox team own JTAG adapter with build in support for SWD and fast programming.

This is why we built ARM-JTAG-COOCOX it’s open source hardware and software JTAG which is supported out of the box by CooCox IDE, so you can fast program and debug your code with CooCox IDE.

At EUR 24.95 ARM-JTAG-COOCOX is fast, reliable and completely open source product.

CooCox IDE generally gives you the same what commercial IDE vendors provide and sell for thousands of euro, but it’s completely free, so you should definitely give it a try when you make your next ARM project.