topic Re: More on MCUXpresso and BCA in MCU Bootloader

More on MCUXpresso and BCA

JBM — Wed, 06 May 2020 23:06:37 GMT

I am porting an older application with bootloader functionality to MCUXpresso. I have read a number of posts here and this on in particular seems to apply:

https://community.nxp.com/message/1004329?commentID=1004329#comment-1004329

In the end, it appears that the best way was to modify the linker scripts and, I assume, not use the managed linker script. Has anybody been able to load the BootloaderConfig at a specific address with the MCUXpresso manageed linker script?

I have already got the flash relocated (I think) to the right address for my bootloader application. Now I would like to figure out how to move the BCA (I've done it by modifying linker scripts) using the managed linker script.

Re: More on MCUXpresso and BCA

nxf56274 — Thu, 07 May 2020 03:06:38 GMT

Hi,

I write a document to show you how to allocate the data at specified address.

Have a great day,
TIC

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Re: More on MCUXpresso and BCA

JBM — Thu, 07 May 2020 13:26:37 GMT

I've already done what is in this document. Another person wrote a similar document a year or two ago. My question was, has anybody done with WITHOUT turning off the managed linker script functionality?

Re: More on MCUXpresso and BCA

ErichStyger — Thu, 07 May 2020 19:27:44 GMT

Not sure, but maybe this helps

Linking Bootloader Applications with Eclipse and FreeMarker Scripts | MCU on Eclipse

Re: More on MCUXpresso and BCA

nxf56274 — Fri, 08 May 2020 01:10:51 GMT

Hi,

If you do not turn off managed linker script, you can't modify the ld file. When you modify the ld file without turning off, the modification will not effect.

Have a great day,
TIC

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Re: More on MCUXpresso and BCA

ErichStyger — Fri, 08 May 2020 07:32:51 GMT

In 99.9% you don't need to turn off managed linker scripts, because you can add/change things with the FreeMarker scripts. Turning off managed linker scripts bypasses all the checks of the linker file and should not be done: using the FreeMarker way has worked very well for me.

Re: More on MCUXpresso and BCA

JBM — Fri, 08 May 2020 18:03:53 GMT

Thanks Erich, I'll take a look at that.