Connect SWD_CLK and SWD_RESET for 4 KL05

[javierhernande1]

Hello,

I have 4 KL05 in a board, Can I connect the SWD_CLK and RESET pins of the 4 mcus?

Best regards

[javierhernande1]

Better if is possible for common SWD_DIO and RESET because so I can reduce the BOM.

If possible, that would be ideal.

[kerryzhou · Accepted solution]

Hi Javier Hernandez,

   No, you can connect SWD_DIO and RESET together, but not the SWD_CLK, each chip should have the independent SWD_CLK, otherwise, you can't program it.

Have a great day,
Kerry

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[javierhernande1]

Thank you

I have common RESET and SWD_DIO  pins in the 10pos. pin socket. and the 4 pads in the center of the board are the 4 SWD_CLK, one for each mcu.

Best regards

[kerryzhou]

You are welcome!

 This design is OK to debug for each MCU.

Have a great day,
Kerry