Kinetis Microcontrollers中的主题 Daisy chain SWD and JTAG

Daisy chain SWD and JTAG

andrewmain — Thu, 16 Jan 2014 17:17:57 GMT

Can you daisy chain SWD and JTAG?

I was going to daisy chain a K10, Xilinx, and Xilinx PROM... However I now also want a KL05 on the board too. So I would have SWD going to the KL05, and JTAG going to the other chips. Obviously I could use SWD on the K10 instead of JTAG, but I have no experience of this.

I just want the minimum amount of connections on this board. any recommendations?

Re: Daisy chain SWD and JTAG

jeremyzhou — Sun, 19 Jan 2014 08:04:14 GMT

Hi Andrew,

Debug inferface for K series and L series is very similarly which have described in the KQRUG and KLQRUG.

I've also included the the KQRUG and KLQRUG with reply. I think it should be useful for reference.

I wish my support could help and if youhave any questions, please feel free to contact with me.

Best regards,

Ping

Re: Daisy chain SWD and JTAG

Paul_Tian — Tue, 21 Jan 2014 02:50:59 GMT

Hi, Andraw

As I know, KL series SWD debug interface does not support daisy chain. So I think you cannot use one SWD interface for debug both K10 and KL05.

Hope my reply can help you.

Best Regards

Paul