cc2538 can be program its self when accessing protect region with backdoor mode

kyt

Expert 2355 points

Other Parts Discussed in Thread: CC2538, Z-STACK

Hi,

Is cc2538 can be programmable as below conditon:

-backdoor and boot loader enable

-flash memory locked all page

-debug access blocked

8.6.2 ROM Boot Loader Backdoor Configuration in Lock Bit Page

http://www.tij.co.jp/jp/lit/ug/swru319c/swru319c.pdf

So,in this case, cc2538 can be program its self when accessing protect region with backdoor mode?

best regards,

kyt

over 10 years ago

0 TheDarkSide over 10 years ago

TI__Genius 16570 points

If the pages are locked, the flash pages can't be erased from the bootloader.
TheDarkSide

0 TheDarkSide over 10 years ago in reply to TheDarkSide

TI__Genius 16570 points

Also I wanted to point out that ROM bootloader has been designed to be used for factory programming, not field upgrade.
TI recommends to disable the backdoor and lock the pages after the part has been programmed and put into production.
Thanks,
TheDarkSide

0 kyt over 10 years ago in reply to TheDarkSide

Expert 2355 points

Hi,TheDarkSide-san

Thank you for your reply.

I got understand.

So,If we need field update without ROM bootloader ,do you have any reference manual or application note and so on ?

best regards,

kyt

0 TheDarkSide over 10 years ago in reply to kyt

TI__Genius 16570 points

Yes please look at the Z-Stack OTA Upgrade User's Guide in the Documents folder of your Z-Stack install for over the air upgrade or Serial Boot Loader for CC2538 document for serial upgrade

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cc2538 can be program its self when accessing protect region with backdoor mode