Hello Everybody,
I previously develop a design with KL14/15/16 using the same SWD minimal connection as used in KL25 Freedom board (FRDM-KL25Z) shown as follows:
Now I developed a K10 prototype using the same SWD connections but it doesn't work, I went in to the SWD configuration as follows:
Where using the pin RESET_b connected to RST_TGTMCU... But after seeing the following table on the K10_RM, I cut off that trace (SWD Debug Port column):
I did not wire-up the TRACE_SWO pin since the KL25 doesn't use it, for me it seems that if I do not wire TRACE_SWO I will loose trace functionality not make my SWD connection useless.
My SWD does not work yet... shoould I wire-up the TRACE SWO signal to make it work? what is going on???
Thanks in advance,
Carlos
Hi, Carlos
The min.single SWD interface is VDD, VSS, SWD_DATA, SWD_CLK. But you might need other function, you need to add other pins, such as trace_swo. So I suggest you keep SWD pin assignment. Thanks.
Hope my reply can help you.
Best Regards
Paul