• Cortex-A7 Generic Timer Clock and Operation
    Hi, I'm using NXP imx6ul-evk(single core cortex-a7 processor) and I'm trying to operate CPU at different frequencies(642MHz, 480MHz, 100MHz, 12MHz) and experiencing time drift on certain frequencies...
  • Generic Timer in Cortex A-53
    What is the input & output of system counter? What is it's purpose? How to start/stop it? What is the input & output of Physical counter? What is it's purpose? How to start/stop it? What are the...
  • Questions about Generic Timer in ARMv8
    When two clusters(Big/Little) exist in SoC, the timer can be used to support Synchronization between two clusters. But How to understand " Synchronization ", anybody can tell me some typical application...
  • Cache lock down in ARM Cortex-A7
    I want to improve the performance of some game in our platform. I have heard of cache lock down feature to achieve performance improvement. Please suggest me how to use this feature in ARM Cortex-A7 for...
  • Cortex-A7 Processor DSP
    Hello everyone. I am new usage of Allwinner A20. I read in Cortex-A7 specification, that it have DSP & SIMD extensions. And if there are digital processing unit in processor, can i use it? Can i drop...