Problem loading bin file to NXP FRDM-K64F using SeggerJlink ("Failed to read back RAMCODE for verification")

[shanker424]

Hello, 

My FRDM-K66F board got bricked and I have a problem trying to reprogram the bootloader using Segger J-Link.
the bootloader openSDA v2.2 is downloaded from open SDA v2.2 and the following method is used to load the bootloader.

I am using Segger J-Link Commander for flashing the bootloader, When I attempt to load the bin file I get the following error message  "Failed to read back RAMCODE for verification" from JLink Commander.

Can anyone help? Thanks in Advance.

[Alexis_A]

Dear shanker424@gmail.com‌,

In the FRDM there's two 10-pin debug connector, 1 for the K64(target) and one for the K20(debugger) you'll need to connect your debug probe in the following connector and follow the steps in the link that you mention.

Don't forget that you need to download the Segger firmware to the K20, so the device to connect is the MK20DX128xx5.

Let me know if this helps you.

Best Regards,

Alexis Andalon

[shanker424]

Thanks, Alexis Andalon it's working.