How to define SDK directory?

[m5p3nc3r]

Hi there

I am struggling to build this crate. I am targeting the RP2040, and the build cannot find the pico.h header that would normally be found in the SDK.

Is there any way to define where the SDK is installed?

[No0ne]

Hi, I might also don't know how to use this 😭

I added this to my Cargo.toml: tinyusb-sys = { version = "0.1", features = ["host", "hid", "rp2040"] }

Is there something else missing?

noone@imac20 rp2040-project-template % RUST_BACKTRACE=1 cargo build
   Compiling tinyusb-sys v0.1.0
error: failed to run custom build command for `tinyusb-sys v0.1.0`

Caused by:
  process didn't exit successfully: `/Users/noone/Documents/rp2040-project-template/target/debug/build/tinyusb-sys-f467065c88a53664/build-script-build` (exit status: 101)
  --- stdout
  OPT_LEVEL = Some("3")
  TARGET = Some("thumbv6m-none-eabi")
  HOST = Some("x86_64-apple-darwin")
  CC_thumbv6m-none-eabi = None
  CC_thumbv6m_none_eabi = None
  TARGET_CC = None
  CC = None
  CROSS_COMPILE = None
  CFLAGS_thumbv6m-none-eabi = None
  CFLAGS_thumbv6m_none_eabi = None
  TARGET_CFLAGS = None
  CFLAGS = None
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some("true")
  CARGO_CFG_TARGET_FEATURE = None

  --- stderr
  thread 'main' panicked at 'Failed to run the compiler: Os { code: 2, kind: NotFound, message: "No such file or directory" }', /Users/noone/.cargo/registry/src/github.com-1ecc6299db9ec823/tinyusb-sys-0.1.0/build.rs:34:14
  stack backtrace:
     0: rust_begin_unwind
               at /rustc/a8314ef7d0ec7b75c336af2c9857bfaf43002bfc/library/std/src/panicking.rs:584:5
     1: core::panicking::panic_fmt
               at /rustc/a8314ef7d0ec7b75c336af2c9857bfaf43002bfc/library/core/src/panicking.rs:142:14
     2: core::result::unwrap_failed
               at /rustc/a8314ef7d0ec7b75c336af2c9857bfaf43002bfc/library/core/src/result.rs:1785:5
     3: core::result::Result<T,E>::expect
     4: build_script_build::main
     5: core::ops::function::FnOnce::call_once
  note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
noone@imac20 rp2040-project-template % 

[nviennot]

I pushed a fix: https://github.com/nviennot/tinyusb-sys-rs/commit/c71f66761d66d1bc9230959b6d4cc302117248f6

There's more things to fix though, like configuring the stm32fxxx target. I'm not going to do it though, but whoever who'd like to do so can in tusb_config.rs

[No0ne]

Ah! I completely missed the point that I didn't have arm-none-eabi-gcc installed (via homebrew) on my Mac. Now I'm getting the same issue as @m5p3nc3r. Setting export PICO_SDK_PATH=~/pico-sdk also didn't work:

running: "arm-none-eabi-gcc" "-O3" "-ffunction-sections" "-fdata-sections" "-g" "-fno-omit-frame-pointer" "-mthumb" "-march=armv6s-m" "-I" "tinyusb/src" "-I" "/Users/noone/Documents/rp2040-project-template/target/thumbv6m-none-eabi/debug/build/tinyusb-sys-d14208066ec1c970/out" "-Wall" "-Wextra" "-o" "/Users/noone/Documents/rp2040-project-template/target/thumbv6m-none-eabi/debug/build/tinyusb-sys-d14208066ec1c970/out/tinyusb/src/portable/raspberrypi/rp2040/hcd_rp2040.o" "-c" "tinyusb/src/portable/raspberrypi/rp2040/hcd_rp2040.c"
  cargo:warning=tinyusb/src/portable/raspberrypi/rp2040/hcd_rp2040.c:32:10: fatal error: pico.h: No such file or directory
  cargo:warning=   32 | #include "pico.h"
  cargo:warning=      |          ^~~~~~~~
  cargo:warning=compilation terminated.
  exit status: 1

How can I try the fix from c71f667?