WhyCan Forum(哇酷开发者社区)

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.