Hi,
There is no specific information on reasoning behind the design developments of CoreSight trace available. However, you will note that the transition from ETMv3.x -> PTM 1.x -> ETM 4.x represents an improvement in the compression of trace - i.e. the amount of trace used per instruction executed, plus developments in the protocols to allow integration with the latest ARM architectures.
Regards
Mike
On 3 April 2017 at 17:07, Muhammad Abdul WAHAB muhammadabdul.wahab@centralesupelec.fr wrote:
Hi,
I was wondering the reasons ARM decided to move towards PTM source component instead of ETM component. What is the main reason that pushed towards this change ?
Thanks for your reply.
Best regards, MAW
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