Kinetis MicrocontrollersのトピックProblem loading loadbin to NXP FRDM-K66F using SeggerJlink ("Failed to read back RAMCODE for verification")

Problem loading loadbin to NXP FRDM-K66F using SeggerJlink ("Failed to read back RAMCODE for verification")

shanker424 — Wed, 24 Jul 2019 15:59:44 GMT

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 openSDA 2.2 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.

Re: Problem loading loadbin to NXP FRDM-K66F using SeggerJlink ("Failed to read back RAMCODE for verification")

r14713 — Thu, 25 Jul 2019 22:56:02 GMT

Hello,

Looks like you are trying to flash the bootloader image to the K66 and not the K20 (where you need to flash it)

To connect the J-Link to the K20 you can access through the "OpenSDAv2 debug" header.

See page 4 of:

https://www.nxp.com/docs/en/user-guide/FRDMK66FUG.pdf

The 2 headers are similar. 1 is for the K20, the other for K66.

Regards

Re: Problem loading loadbin to NXP FRDM-K66F using SeggerJlink ("Failed to read back RAMCODE for verification")

shanker424 — Tue, 30 Jul 2019 09:52:22 GMT

Thanks Gary Anderson, it's working.