• 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.
  • What will happen if Cortex-M0 fetches 0xFFFF_FFFF as an instruction ?
    Dear Guys,     In typical SoC product, the FLASH memory is initially empty after being shipped from factory, in which the data are all "0xFFFF_FFFF".     I am curious how Cortex-M0 deals with the undefined...