C6678 MPU protection on arbitrary addresses

Chris Johnson1

Can the MPU be used to protect addresses that aren't in table 7-50 from the C678 data sheet?

Specifically, can it be used to protect the low memory addresses below the start of local L2 SRAM (0x00000000 - 0x007FFFF)?

over 8 years ago

0 Jeff Brower73 over 8 years ago

Genius 3420 points

TI Experts-

If not, is there another way to do it ? We've got a corruption problem that takes up to 20+ hrs to occur, it's in a customer deployed location that we can't reach, and we really need to catch this at the "moment of impact". Corrupted pointers tend to lose their upper 2 bytes (see this thread) and we end up writing to low memory.

Any way to trigger on this is appreciated, thanks.

-Jeff
Signalogic

0 Jeff Brower73 over 8 years ago in reply to Jeff Brower73

Genius 3420 points

TI guys-

Can you give us some advice on this ? Thanks.

-Jeff

Processors

Processors forum

C6678 MPU protection on arbitrary addresses