Arm Cortex M3

[aug2uag]

Greetings, is Calyx capable or recommended for emulating/simulating devices? I'm interested in ARM devices, noticed the cells/groups/wires and thought it may be convenient for this purpose

[rachitnigam]

Calyx is an intermediate language used to design hardware, somewhat similar to RTL languages like Verilog. Calyx programs are usually generated through compilation of other higher-level languages.

[aug2uag]

Thanks for your response! I have seen ARM IP and my goal is to emulate ARM in FPGA, only I don't find HDL intuitive.

I have a C/C++ program that compiles with LLVM, generates IR. Would this be eligible to generate Calyx IR? If so, are there instructions (I have not yet been able to find them in case they exist)

[rachitnigam]

There is no way to convert general LLVM IR into a hardware design. A subset of C++ programs can be compiled to Calyx (https://github.com/circt-hls/circt-hls) but it's likely not what you're looking for. Another approach you can take is implement an ARM core in Calyx and compile it into a hardware design from there.

At that point, you're using Calyx as a higher-level HDL.

[aug2uag]

This helps me a lot, thank you @rachitnigam for cutting through the meat and answering all my questions. I'm going to give Polygeist a go and see if I can interface to Calyx with CIRCT.

[aug2uag]

There is no way to convert general LLVM IR into a hardware design. A subset of C++ programs can be compiled to Calyx (https://github.com/circt-hls/circt-hls) but it's likely not what you're looking for. Another approach you can take is implement an ARM core in Calyx and compile it into a hardware design from there.

At that point, you're using Calyx as a higher-level HDL.

[rachitnigam]

Great! Let us know how it goes and if there is something we can do to help