Question :  Does any attempt to read the IPR during HPI boot corrupt the IPR. Is this also an issue when using the XDS510 and booting in mode 5 (IPR, MAP1)? I wasn't able to get that mode to work. If the XDS510 reads back the IPR after loading it, maybe it corrupts the IPR. Is it possible to ever read from the IPR?

Answer : You can't read the IPR in HPI mode. We use boot mode 5 as our default and this works fine. You just can't read the IPR during the boot mode (before HINT is asserted).