• AM3352 TrustZone
    Hello, We want to develop complete IoT platform using  ARMmbed OS platform for an IoT application, based on TI's AM3352. Security and over the air firmware upgrade of another co-processor are of primary...
  • Cortex-A series's pipeline is for only one core or for all cores?
    For example, in ARM's related docments says that cortex-A7 support max to 4 cores and cortex-A8 support only one core, and the same time cortex-A7's pipeline is not the same with cortex-A8's pipeline...
  • SMP ARM cores hang when using DMA and two cores enabled
    Hi, I am experiencing A complete arm core hang when both of the cores are employed in SMP mode and using DMA. I was tested with Linux kernels 3.10, 4.1 and 4.6 in SMP mode. SOC used is Altera Cyclone...
  • Cortex-A8: memcpy() into DMA buffer hangs on NEON instructions
    I am cyclically filling the mmap-ed DMA buffer with my data by copying it from "normal" memory in 290 bytes chunks. At the first cycle memcpy always passes OK. At the second cycle it hangs in __memcpy_neon...
  • Question about accumulator word length in A8 core
    Hi, I have used some 32-bit microprocessor cores (non-ARM), which has a long word-length accumulator for some DSP operations, to avoid over-flow etc. After I check A8 core document, it is a surprise that...