AnsweredAssumed Answered

CRP and BOOT_SRC vs privacy?

Question asked by Henrik Glader on Oct 16, 2018
Latest reply on Oct 25, 2018 by Henrik Glader

Hi everyone, nice community you got here = )

 

I've been looking in to using a LPC43XX chip in a upgrade design.

Thus playing around with the MCB4357 board several years ago I don't remember too much of it so be aware, you may get hit by a numbers of n00b questions.

 

First off, regarding privacy and boot without any security measurements.

 

Selecting CRP3 gives some basic intrusion resistance and disables the ISP override (P2_7), what happens if BOOT_SRC is {0, 0, 0, 0}?

 

If its possible to program the BOOT_SRC to {1, 1, 1, 1} would that mean the chip only boots from the internal FLASH?

 

Is there any hacks affecting these options, like stressing the chip in various ways during the boot?

(yes, I know theres probably no answer on his one)

 

Thank you in advance

/Henrik

Outcomes