Kinetis KL25Z Freedom Board - CM0+

[mobyfab]

Hey,

Freescale is releasing a new dev board, for around 10€.
It is based on the CM0+. There is an integrated debugged.

http://www.element14.com/community/docs/DOC-46626/l/element14-exclusive-freescale-kinetis-l-based-kl25z-freedom-development-board

[Giovanni]

It looks interesting, the page does not give any detail about that GDB server however.

Giovanni

[Giovanni]

Farnell reports it available starting from 25 September, there is still time. I find it interesting because the CM0+, I like shiny new toys.

Giovanni

[mobyfab]

so do I

I'm definately gonna get one.

[mobyfab]

FYI the board is out now.

http://octopart.com/frdm-kl25z-freescale+semiconductor-23868007

[Giovanni]

It is in stock at Farnell, I will buy a couple.

Giovanni

[mobyfab]

By the way, there is also this module with a K40+J-link for $35:

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=KWIKSTIK-K40

http://octopart.com/kwikstik-k40-freescale+semiconductor-19675707

[fpga_comp]

Don't know if this replacement debugger firmware would work for the new boards. There are restrictions on how it is used.

https://www.segger.com/opensda.html

OpenSDA / OpenSDA V2 firmware
SEGGER offers a firmware running on the Freescale OpenSDA platform which makes OpenSDA compatible to J-Link Lite, allowing users to take advantage of most J-Link features like the ultra fast flash download and debugging speed or the free-to-use GDBServer, by using a low-cost OpenSDA platform for developing on evaluation boards.

[colin]

Yes, the Segger OpenSDA firmware is supposed to work on the FRDM-KL25Z. The newest Freedom boards use OpenSDAv2 (I think FRDM-K64F and K22F?). But Segger prohibits you from using it to program an external board. Lame. Of course they want you to buy the standalone J-Link for other stuff.

But I found that an ST-Link/V2 works fabulously with OpenOCD/gdb/ChibiOS. So I just solder on a standard Cortex Debug 10-pin header to the FRDM-KL25Z board and use my ST-Link/V2 with it. Beautiful.. Segger J-Link is a great product, but it's not necessary, especially if you want to hack on open source stuff or take advantage of OpenOCD's support for ChibiOS RTOS integration which is super helpful.

[Giovanni]

Hi,

Could you write a small guide about that? a lot of people have discovery boards that could be used that way.

Giovanni