Does Cortex-M7 support SMP?
I'm plan to start project using ARM core.So I'm searching for which core is suitable.I want to use a core that is as small as possible.
I'd like to use little kernel OS environment and I need to SMP(Symmentric MultiProcessing)I already know cortex-A series support SMP, but I want to smaller size core than cortex-A series.
SMP is more like a software concept while Hardware Processors can provide some features to enhance the SMP performance.
For Cortex-M7, it is a single core processor. So it depends on how you define the "SMP" for two Cortex-M7 processors.
In theory, the two Cortex-M7 can work together but it may not be similar to the Cortex-A SMP that can provide the cache coherency.
The Cortex-M7 processor is a highly efficient high-performance, embedded processor thatfeatures low interrupt latency, low-cost debug, and has backwards compatibility with existingCortex-M profile processors. The processor has an in-order super-scalar pipeline that meansmany instructions can be dual-issued, including load/load and load/store instruction pairsbecause of multiple memory interfaces.Memory interfaces that the processor supports include:• Tightly-Coupled Memory (TCM) interfaces.• Harvard instruction and data caches.• AXI master (AXIM) interface.• Dedicated low-latency AHB-Lite peripheral (AHBP) interface.• AHB-Lite slave (AHBS) interface that provides DMA access to TCMs.