Posts by guzhengtao

Quote from SEGGER - Simon

Hello,

Could you please provide a J-link Log file for both cases?
How to enable: https://wiki.segger.com/J-Link_DLL#Enable_J-Link_Log_File

Did you make sure that the same programming procedure was used in both cases?

Best regards,
Simon

Hi, Simon
Sorry for the later reply

Hi, I meet the "Failed to measure CPU clock frequency" error when I use jlink software version is up than 786h

The J-Flash log windows shows

• When the jlink software version is 7.86h, "CPU speed could not be measured" --> the CPU speeed could not be meausred but Jlink NOT treat it's an ERROR and continue the programming
• When the jlink software version is 8.12b, "Failed to measure CPU clock frequency" --> the CPU speeed could not be meausred and Jlink thinks it's an ERROR

By the way, The Keil and IAR works fine with the jlink 8.12b.

Is this a jlink software bug?
How to fix this?
Or is there a way to skip "CPU speed measured" ?

Thanks!