• instructions fetch
    Hello, when I use stm32f103xx, I am confused of one of the boot modes it supported. One of the boot modes is booting from embedded SRAM while the I-BUS of Cortex-M3 is connected to FLASH only . When boots...
  • Which is better of thees CPUs
    Which is better of thees CPUs: Cortex A53 octa core 1.5 ghz, Cortex A7 Allwinner T8 Eight core 2.0 ghz, Cortex A9 Quad-Core 1.8 ghz ?
  • Instruction Fetches from Peripheral Memory Space
    Is it possible to use the MPU to configure the Peripheral Memory Space as Execute? It looks possible via the MPU_RBAR.XN bit. If this is the case, is it fair to say that TrustZone aware select gates...
  • Cortex-M3 or -M4: Which is better?
    Hi, I need some clarification about which one is better either Cortex-M3 or -M4. Which one is present trending and which one having good future. Thanks in advance.
  • Disabling PFU / instruction pre-fetch on Cortex-R4?
    Hello, I'm trying to find the proper way to disable PFU / instruction pre-fetch on an R4. System control register bit 12 might do the job, but it's not clear to me: Determines if instructions can...