#How to setup rust on pi pico w?

74 messages · Page 1 of 1 (latest)

cloud oriole
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(I haven't personally use rust on a pico just Arduinos)

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It's a set of crates

wary mauve
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@waxen stratus yes, it is a hardware abstraction layer (take a look at definition)

cloud oriole
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Go through the getting started section

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Yep

wary mauve
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you probably will cargo build like on any other platform (I have experience with stm32 and esp32)

cloud oriole
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You have to install all the tools before you can get to programming the pico

wary mauve
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yes

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if you have RP2040 (seems like it is the case) you can even drag and drop image after converting as stated in a readme

cloud oriole
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I feel like we have skipped over the "install all the tools for compiling for arm" step

wary mauve
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Also what is the main goal? Learn embedded Rust or just embedded?

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If second, I would suggest to try micropython first, it has much faster iteration and even REPL, which give you an opportunity to run commands on the fly

cloud oriole
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Run the cargo install and rustup update. You will want to clone the ro-hal repo and try the example projects first

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Before making your own project

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Yes

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That installs the backend for rustc that can make arm machine code

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Yes

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You can't install for just a project

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That's for dependancies

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This is a command line tool not a library

wary mauve
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toolchain is a global "thing" which compiles your project, technically you can do this per-environment but not per-project

cloud oriole
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No

wary mauve
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you can choose target explicitly in cargo.toml

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if you clone or create project [with cargo] it will be there

cloud oriole
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Yep, just let if keep going

wary mauve
cloud oriole
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You should try the example project first to see if it works

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Git clone, cargo build, cargo run

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Clone the rp-hal repository itself

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Before running the last command cargo run ...

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Yes

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So git clone https://github.com/rp-rs/rp-hal.git

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cargo build --release --example <name>

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You can, but it's not needed yet

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Well if you say no you can't continue, so...

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Replace <name> with the example you want to try

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They are listed on the page

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Cd into the folder

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boards/rp-pico

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You cloned the wrong thing

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git clone https://github.com/rp-rs/rp-hal.git

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You can just leave it for later

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You can use it for your first solo project

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You just go into your file explorer and click the folder and press delete

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A git repository is just a normal folder with files in it

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K, it all compiled good?

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K cargo run --release --example <name> same thing replace <name>

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And it should program the pico and start flashing the LED if you chose the blink example

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No blink?

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It says it uploaded fine

wary mauve
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try to reconnect, maybe reset didn't work properly

cloud oriole
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Hmm, did you hold the button when you plugged it in? Seems like that is needed from what I see online

wary mauve
cloud oriole
wary mauve
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what I see in terminal output is that you are converting binary to uf2 and copying it to pico

wary mauve
cloud oriole
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Oh wait, this is a W

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Which has the LED on a different pin

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Probably so it's probably working you just can't see it

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Looks like it's connected to the wifi chip instead of the main CPU

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You would need to wire up an external LED for easy blinking

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As the Rust wifi chip driver is still under development

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But you should be able to use it as is just fine

lyric obsidian
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I could just go out and get an external led if that is the main difference but i do want to use the bluetooth capabilities

lyric obsidian