Wi-Fi® + Bluetooth® + 802.15.4中的主题 Re: RW610 SWD Programming Issue During Board Bring-Up

RW610 SWD Programming Issue During Board Bring-Up

Arunembien — Wed, 13 May 2026 08:59:34 GMT

Hi Team,

We have designed a custom board using RW610.

The board has now been fabricated, and bring-up activity is currently in progress. We are using an external MCU-Link debugger for programming and debugging.

While programming the RW610 device, we are encountering the below SWD configuration error:

0 SWD devices detected. Connect a device and try again.

Please find the attached schematics for reference.

Current strap pin configuration:

CON[3:0] = 1111 Boot from QSPI
CON[11] = 0 SWD mode enabled

Additional details:

VREF = 3.3V
Pull-up on SWCLK is DNP

Additionally, we observed the same behavior while trying to flash the RW612 EVK board using an external MCU-Link debugger.

Kindly provide your inputs or suggestions on this issue and let us know if any additional configuration or recovery steps are required.

Thanks and Regards,
Arun Kumar V

Re: RW610 SWD Programming Issue During Board Bring-Up

Arunembien — Wed, 13 May 2026 15:15:47 GMT

Hi Team,

I am attaching error log for your reference. Kindly refer and support on this.

Regards
Arun

Re: RW610 SWD Programming Issue During Board Bring-Up

Christine_Li — Thu, 14 May 2026 06:44:00 GMT

Hi, @Arunembien

Thanks for providing us logs and reporting to us.

I will check and reply to you ASAP.

Best regards,

Christine.

Re: RW610 SWD Programming Issue During Board Bring-Up

Christine_Li — Tue, 19 May 2026 10:30:12 GMT

Hi, @Arunembien

Can you please have a try with below recommendations?

add/populate the SWCLK and SWDIO 10 kΩ pull-ups
try the board with J-Link firmware on MCU-Link or a native J-Link

By the way, you mentioned, you also tried with our EVK, still have issue.

Do you mean our FRDM-RW612? Or our RW612-RD board?

Best regards,

Christine.

Re: RW610 SWD Programming Issue During Board Bring-Up

Christine_Li — Thu, 21 May 2026 02:44:31 GMT

Hi， @Arunembien

Have you tried with my recommendations?

Does it work for you?

If still need our support, please let me know your updates, Thanks!

Best regards,

Christine.

Re: RW610 SWD Programming Issue During Board Bring-Up

Christine_Li — Fri, 22 May 2026 02:24:59 GMT

Hi， @Arunembien

Have you tried with my recommendations?

Does it work for you?

If still need our support, please let me know your updates, Thanks!

Best regards,

Christine.