topic Re: How to use cfmconfig section? in Kinetis Microcontrollers

How to use cfmconfig section?

ignisuti — Thu, 29 Oct 2020 09:17:01 GMT

The default LCF has this memory location reserved:

cfmprotrom    (RX): ORIGIN = 0x00000410, LENGTH = 0x00000010

And then defines this section as follows:

.cfmprotect :{    *(.cfmconfig)    . = ALIGN (0x4);} > cfmprotrom

My GUESS is that this is for memory protection. Is this correct?

If so, where do I look to find more information on how to make use of this? I've dug through the manuals and didn't find any information on this specfic address (0x0000410). I've been Googling for awhile now and havn't come across any examples.

Re: How to use cfmconfig section?

konrada — Tue, 05 Jun 2012 14:04:25 GMT

The 0x410 area holds initial values for registers which are described in the FTFL/FTFE chapter. Look for FTFE_FOPT and FTFE_FSEC. (or FTFL_FSEC, if you're on one of the smaller Kinetises).

Re: How to use cfmconfig section?

PaoloRenzo — Sat, 30 Jun 2012 09:59:24 GMT

The origin is wrong, the config area is at 0x400 - 0x40F (0x10 bytes)

Look at FTFL chapter (28.3.1 Flash Configuration Field Description) for the K60 RM

Hope this helps