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Can I access HAB error logs via JTAG?

Question asked by rshipman on Jan 9, 2020
Latest reply on Feb 5, 2020 by rshipman

In the document: i.MX RT1020 Processor Reference Manual, Rev. 1, 12/2018

In section: 8.3.6 Boot security settings


The text refers to an error log:

"All detected errors are logged"

" the error log can be examined to determine the cause of the authentication failure."



Some questions:


1. Are they talking about these HAB API functions: hab_rvt.report_event, hab_rvt.report_status ?

2. Can we access the error logs using the JTAG (assuming JTAG mode is still fully enabled)?

3. What if the HAB security setting is closed, can we access the error logs using JTAG if jtag is still fully enabled? Or any other way? My guess is no.


Many thanks.