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楼主 # 2022-06-19 17:19:23

titishev
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注册时间: 2022-04-13
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FPGA 上是否有开放的 ARM9 内核?

有没有这样的缓存和管道实现?

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#1 2022-06-19 19:24:00

Blueskull
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注册时间: 2020-02-20
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Re: FPGA 上是否有开放的 ARM9 内核?

If you don't speak Chinese, just post in English. It's harder to guess what you meant after it has been translated improperly.

Now to your original question, put it simple, no. ARM cores are not only copyrighted, but have their instruction set patented, meaning no one can implement an ARM core until the instruction set patent has expired (and make money).

Also, ARM9 is not a small core. It takes a lot of logic resource to implement and a lot of human labor to optimize on a given FPGA architecture to a usable timing (after all people anticipate a few hundreds of MHz on an ARM9 core).

So put it simple, you only get FPGAs with hard core ARM9 (or any application class cores) IPs. You might find smaller cores like Cortex M0 or M1 in soft core form, but never something like ARM9.

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#2 2022-06-25 09:20:36

seamas
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注册时间: 2019-12-01
已发帖子: 1
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Re: FPGA 上是否有开放的 ARM9 内核?

有本书《兼容ARM9的软核处理器设计》和开源项目 https://github.com/risclite/ARM9-compatible-soft-CPU-core 可以关注一下,
eetop还有一个论坛: https://bbs.eetop.cn/forum-221-1.html

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