Let us assume that there will be billions of chips in the IoT market in the future. At the same time, we continue to assume that these chips use ARM's Cortex-M core. Nowadays, Softbank's acquisition of ARM is a foregone conclusion. What is presented is nothing more than two futures: one is that Softbank continues to maintain ARM's independence, and Cortex-M is still the core of the IoT market.
The other is that Softbank has made a lot of adjustments to the development direction of ARM. This is to authorize users to be crazy. They will explore other IP products everywhere. What are they?
1. MIPS has some top-level cores, and ImaginaTIon (owner of MIPS) has laid a solid foundation and good reputation for IP licensing through its PowerVR GPU core. Although it does not have a powerful ecosystem like the ARM architecture, there are some stars, such as the MIPS microcontroller (PIC32) made by Microchip and the MIPS64-based Godson core made in China.
Microchip has just included Atmel in its pocket, including its vast array of MCU products based on the ARM core.
2. Some new freely licensed chips, such as RISC-V and OpenRISC.
3. China has developed one of the most powerful computers in the world and has a new architecture. What feats will this vast country make? To create hundreds of millions of IoT nodes, cost will be an important factor, and you need a low-cost kernel that doesn't take up too much memory and can run a wireless stack (probably 32). Bits of the kernel - obviously the free stack and C compiler will take advantage.
Security is a top priority for the Internet of Things—if the node is unsecure (except for the simplest applications), the product is vulnerable, and sometimes it breaks through a path that is close to the entire network, including its connected phones.
ARM has an obvious advantage in the security of IoT software and hardware. Anyone who wants to catch up with ARM in this area will have to work harder and harder – but MIPS is also a leader in terms of security performance. Of course, I am also looking forward to seeing more outstanding people stand out.
By the way, talk about "architecture"
The "architecture" referred to above is the "instruction set architecture" (ISA), which describes the instructions that are executed. In fact, it should be said to be the "instruction set" - this is the intellectual property to protect most processors.
"A" in ISA refers to "architecture", which can better describe the work of processor hardware - such as von Neumann and Harvard architecture. For example, different hardware architectures can execute the ARM instruction set in the Cortex A_, R_, and M_ cores.
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Main effect:
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Differences from other charge controllers:
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