Hi Experts,
What is the use case of split/lock configuration in the Application processors ?
Do you mean the split/lock feature found in the Cortex-R5? If so, I don't believe any of the Cortex-A processors support a similar feature.
Hi Martin,
Sorry I mean it in R series processor.
What is the typical use case and performance impact of the same ?
Regards,
Techguyz
May be to downgrade the R into M serie during use. During the run of a software procedure which not requiere the RT in way to free some CPU ressources
When the two cores are "locked", it gives you dual redundancy. Basically, you do the same operation on both cores and check that they got the same result. The idea being that if you had something like a radiation strike, even if it affects both cores, it result in different errors on each core. Therefore you could detect that the error occurred. So it is useful where correct operation is vital and/or where the higher chance of things such as radiation strikes.
With "split" you get two cores, which are each running independently.