Add a basic example which blinks an LED #10
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| /// The default clock source is the onboard crystal | ||
| /// In most cases 40mhz (but can be as low as 2mhz depending on the board) | ||
| const CORE_HZ: u32 = 40_000_000; |
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I don't intend to change this but to keep this as a side note, in the PR #7 this can be calculated at run time depending on the clock source used.
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Thanks for pointing that out. I'm fine with waiting until that PR has merged and updating the example if that's preferable.
.cargo/config
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| [build] | ||
| rustflags = [ | ||
| "-C", "link-arg=-nostartfiles", | ||
| "-C", "debuginfo=0", # not 2 |
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This is no longer required, the new llvm fork supports debug info.
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Just for clarification, am I removing the entire rustflags array, its first 2 elements, or just the debuginfo line?
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@MabezDev Which exact llvm fork are you using? If I use https://github.com/espressif/llvm-project/tree/xtensa_release_9.0.1 I still get CFI not supported errors.
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@arjanmels I'm using that fork; it should work. Note that if you're trying to compile .S assembly files, it will be passed to the gcc assembler at the moment, which will produce these errors. Inline assembly works though.
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Strange, not working for me. I recompiled llvm and rust, but no luck, must be missing something.
This is what I get if I check my version (afraid it may not be super helpfull:
$RUSTC --version --verbose
rustc 1.44.0-dev
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-unknown-linux-gnu
release: 1.44.0-dev
LLVM version: 9.0
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That is weird, so you can't create debug info at all? I've defintely got it working on my machine: espressif/llvm-project#10 (comment)
Ive been pretty tied up this week, but today I've been revisiting the rust fork, looking to improve the ABI calls, and use the built in llvm module, which might fix your issue.
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No debug info not working for me. If I understand your comment for espressif/llvm-project#10 (comment) correct you are working with a local rebase, so theoretically could be something different?
More likely that I did something wrong perhaps, but I don't know what. Anyway I am managing ok without the debugger at the moment as I have the serial output up and running, but debugger would be nice of course.
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That rebase was temporary, the current default branch of the fork has the correct changes in it.
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I think everything should be okay now. If I still don't have the |
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Perfect! Thank you! |
Pretty self-explanatory. If there are any issues please let me know and I will get them fixed up.